Water Trap Outlet With Eccentric Ribs for Multi-Diameter Drain Pipes
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Solution Overview
Problem
Conventional drain systems require different parts for connecting drain pipes of varying diameters, such as 40 and 50 millimeters, leading to inefficiencies in installation and manufacturing complexity.
Innovation Solution
A water trap system with eccentrically arranged longitudinal ribs on the inner surface of the outlet pipe allows for connection of pipes with different diameters, ensuring a secure and leak-resistant fit using a uniform thickness design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different parts are used for different pipe diameter standards, then connection compatibility is improved, but device complexity and manufacturing complexity increase
Solution Approach 1:
The water trap outlet is designed with a universal connection structure that can accommodate multiple pipe diameter standards (40mm and 50mm) through a single part design. The outlet includes an eccentric spacing means with ribs that create different effective connection diameters, allowing one water trap to serve multiple pipe size requirements without needing different parts for each standard.
Solution Approach 2:
The connection structure employs a nested arrangement where the spacing means with ribs is integrated within the outlet wall structure. The ribs create concentric effective connection surfaces at different radial positions, allowing smaller diameter pipes to connect within the same outlet structure designed for larger diameter pipes, effectively nesting multiple connection capabilities within a single component.
2Adaptability or versatility
If different parts are used for different pipe diameter standards, then connection compatibility is improved, but manufacturing complexity increases
Solution Approach 1:
The water trap outlet is designed with a universal connection structure that can accommodate multiple pipe diameter standards (40mm and 50mm) through a single part design. The outlet includes an eccentric spacing means with ribs that create different effective connection diameters, allowing one water trap to serve multiple pipe size requirements without needing different parts for each standard.
Solution Approach 2:
The spacing means features ribs with varying local thicknesses arranged eccentrically within the outlet wall. This creates different effective connection diameters at different angular positions around the outlet circumference, allowing the same outlet structure to provide multiple connection interfaces for different pipe sizes through localized structural variations rather than requiring entirely different components.
3Ease of manufacture
If uniform thickness design is used, then manufacturing complexity is reduced, but adaptability to different pipe diameters deteriorates
Solution Approach 1:
The spacing means is designed with asymmetric rib arrangements where the ribs are positioned eccentrically relative to the outlet center axis. This asymmetric configuration creates different effective connection diameters in different directions, allowing the uniform thickness outlet to adapt to multiple pipe diameter standards through its non-symmetric internal geometry rather than requiring variable wall thickness.
Solution Approach 2:
The invention transitions from varying wall thickness (radial dimension) to varying rib positioning (angular/longitudinal dimensions) to achieve adaptability. By arranging ribs at different angular positions and longitudinal locations within the uniform thickness wall, the design achieves multiple connection capabilities through spatial arrangement in angular and longitudinal dimensions rather than through radial thickness variation.
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
A part for a water trap system, preferably a water trap, comprises a first end pipe (12) and a second end pipe (14) in fluid connection with the first end pipe (12), the second end pipe (14) having a wall (14a) with a centre axis, a uniform thickness and an inner surface. By arranging a spacing means (14b) on the inner surface of the wall (14a) of the second end pipe (14) which is eccentrically provided in relation to the centre axis of the wall (14a), a connection pipe (40) inserted into the second end pipe (14) will be eccentric in relation to the second end pipe (14). A connection for drain pipes of different diameters is thereby provided without requiring a second end pipe with a large thickness.