Floor Drain Sealing Mat and Water-Sealing Layer Integration
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Solution Overview
Problem
Existing drain assemblies for tile floors face challenges in creating a watertight connection between the drain and tiles, primarily due to insufficient consideration for the convenience of tilers, leading to leakage and moisture issues.
Innovation Solution
A drain assembly with a drain body, a peripheral flange, a water-sealing layer, and a sealing mat that overlap to prevent water penetration, where the water-sealing layer is pre-adhered to the flange and the sealing mat extends beyond the flange's periphery, ensuring efficient sealing without requiring extensive expertise from the tiler.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a drain assembly is designed from the plumber's viewpoint, then the drainage function is optimized, but the ease of placement for the tiler deteriorates
Solution Approach 1:
The patent combines multiple sealing functions into a single integrated drain assembly structure. The peripheral flange integrates the water-sealing layer attachment, the sealing mat mounting, and the capillary barrier function into one component that the tiler places as a single unit, eliminating the need for separate sealing operations and reducing placement complexity.
Solution Approach 2:
The water-sealing layer is pre-adhered to the peripheral flange during manufacturing, and the sealing mat is pre-positioned around the periphery with proper overlap alignment. This preliminary preparation of sealing components during fabrication eliminates the need for the tiler to perform complex sealing operations on-site, significantly easing placement while maintaining sealing effectiveness.
2Ease of operation
If the overlap between sealing mat and water-sealing layer is minimized, then the ease of operation for tiler is improved, but the reliability of water sealing may deteriorate
Solution Approach 1:
The patent applies different sealing mechanisms at different locations: the water-sealing layer provides primary sealing close to the drain inlet where water penetration risk is highest, while the sealing mat provides secondary sealing at the periphery. The capillary barrier is localized at the interface between the water-sealing layer and sealing mat. This localized differentiation allows minimal overlap (5 cm) while maintaining reliable sealing throughout.
Solution Approach 2:
The patent incorporates a capillary barrier that prevents water from wicking along the interface between the water-sealing layer and sealing mat. This barrier acts as a cushioning measure that compensates for the minimal overlap distance, ensuring that even with reduced overlap, water cannot penetrate through capillary action along the sealing layer interface, thus maintaining sealing reliability.
3Ease of operation
If the water-sealing layer is pre-adhered to the peripheral flange, then the ease of operation for non-experienced tilers is improved, but the manufacturing complexity increases
Solution Approach 1:
The water-sealing layer is pre-adhered to the peripheral flange during the drain body manufacturing process. This preliminary action transfers the sealing installation task from the tiler to the manufacturing process, where it can be performed more precisely and efficiently. The tiler then only needs to place the pre-prepared drain assembly, significantly easing operation for non-experienced tilers despite the added manufacturing step.
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
The solution effectively prevents water penetration through capillary action, ensuring a watertight seal around the drain, even for non-experienced tilers, by using a minimal overlap of the sealing mat and water-sealing layer, enhancing the reliability of the sealing process.
Implementation Method 1
penetration of water due to capillary action in the tile floor is largely prevented
Data Source
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AI summary
Drain assembly for building into a floor, comprising: - a drain body which can be built into the floor and which has at the top an inlet zone with a periphery; - a peripheral flange with an upper surface, extending substantially in a horizontal plane from this periphery; - a water-sealing layer arranged adheringly on the upper surface of the peripheral flange; - a sealing mat with the form of a frame with an inner periphery fitting around the periphery, wherein a portion of the sealing mat overlaps at least the outer periphery of the water-sealing layer; wherein the sealing mat and the water-sealing layer are adapted to be water-sealing and to adhere well to tile adhesive.