Tool-Free Drain Pipe Assembly With Spring-Loaded Fastening
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Solution Overview
Problem
The existing drain pipe assemblies for washstands require special tools for assembly and disassembly, making the process inconvenient and time-consuming, and often involve complex fastening steps with trapping pipes.
Innovation Solution
A drain pipe assembly with a fastening member that includes a sliding member, a spring member, and a latch system, allowing for easy assembly and disassembly without special tools, by sliding the drain pipe into a basin and using a latch to secure it in place, eliminating the need for complex fastening with the trapping pipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a nut and special tool are used to fasten the drain pipe to the basin, then the connection strength is improved, but the ease of assembly and disassembly deteriorates
Solution Approach 1:
The patent replaces the traditional nut-based mechanical fastening system with a spring-loaded clamp mechanism. The spring member provides continuous pressing force to secure the drain pipe to the basin, eliminating the need for nuts and special tools while maintaining connection strength. This substitution transforms the fastening system from a threaded mechanical connection to a elastic force-based connection that is easier to operate.
Solution Approach 2:
The spring member automatically maintains the pressing force between the drain pipe and basin without requiring manual adjustment or special tools. The elastic nature of the spring provides self-regulating pressure that adapts to the connection interface, enabling easy assembly and disassembly while ensuring reliable connection strength throughout the service life.
2Reliability
If a complex fastening system with multiple components is used, then the reliability of connection is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple fastening components (spring member, pressing member, and clamping structure) into an integrated assembly that works as a unified system. The spring member and pressing member are combined to form a compact fastening unit that attaches to the drain pipe and basin together, reducing the number of separate components and simplifying the overall device while maintaining reliable connection.
Solution Approach 2:
The spring-loaded fastening mechanism serves multiple functions simultaneously: it provides continuous pressing force for reliable connection, allows easy assembly and disassembly without tools, and adapts to variations in the drain pipe and basin interface. This multi-functional design achieves high reliability without proportionally increasing device complexity.
3Reliability
If traditional drain pipe assembly with separate trapping pipe is used, then the sealing performance is improved, but the assembly time increases
Solution Approach 1:
The patent merges the drain pipe and trapping pipe into an integrated structure where the trapping pipe is formed as part of the drain pipe assembly. This integration eliminates the need for separate connection steps between the drain pipe and trapping pipe while maintaining the water seal function, thereby reducing assembly time without compromising sealing performance.
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
This configuration enables quick and tool-free assembly and disassembly of the drain pipe, reducing installation time and simplifying the process, while also allowing for a more integrated trapping pipe design that reduces assembly steps.
Implementation Method 1
a spring member which resiliently presses the basin against the flange
Implementation Method 2
the fastening member pulls the drain pipe, which is exposed below the basin, in a downward direction, to upwardly press the basin
Data Source
AI summary
A drain pipe assembly for installation of a basin includes: a drain pipe which is inserted in a drain port formed in a base of basin and has a flange of which an upper end is caught by the drain port; and a fastening member which fixes the basin against the flange, wherein the fastening member pulls the drain pipe, which is exposed below the basin, in a downward direction, to upwardly press the basin, thereby fastening the basin and the drain pipe.