Modular Drain Fitting Base Body with Interchangeable Trigger Modules

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Solution Overview

Problem

Existing drain fittings for cisterns require complex manufacturing due to different installation requirements, necessitating various tools for different configurations, and lack adaptability to different geometries and triggering mechanisms.

Innovation Solution

A modular drain fitting kit with a base body and adjustable trigger modules for mechanical, pneumatic, electrical, and cable releases, allowing for flexible configuration and attachment via positioning means that can be aligned in three axes, enabling compatibility with various cistern geometries and triggering methods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If drain fittings are specially manufactured to suit various installation situations with different triggering mechanisms, then adaptability to different cistern geometries and triggering methods is improved, but manufacturing effort and device complexity increase due to requiring different tooling for each design

Engineering Contradiction:
Improveadaptability to different cistern geometries and triggering mechanismsVSAvoidmanufacturing effort
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The drain fitting base body is designed as a universal platform that can accommodate multiple types of trigger modules (mechanical lever release, single-cable release, double-cable release, pneumatic release, electrical release, and stop release). This multi-functional design allows a single base body to serve different installation situations without requiring special manufacturing for each configuration, thereby improving adaptability while maintaining ease of manufacture.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The drain fitting system is divided into separate modular components: a standardized base body and interchangeable trigger modules. Each trigger module is designed as an independent unit that can be selectively attached to the base body. This segmentation allows the manufacturer to produce standardized base bodies in large quantities using the same tooling, while offering various trigger module options, thus reducing overall manufacturing effort while maintaining high adaptability.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If different trigger modules are designed for different triggering mechanisms, then versatility of triggering methods is improved, but device complexity increases due to having multiple different components

Engineering Contradiction:
Improveversatility of triggering methodsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The base body incorporates universal mounting features and connection interfaces that can accommodate multiple types of trigger modules. This design allows the same base body to support mechanical, pneumatic, electrical, and cable-based triggering mechanisms through standardized attachment points, thereby achieving versatility without proportionally increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the common functional elements of different triggering mechanisms into a single standardized base body design. The base body integrates the valve pipe, sealing element, housing, and positioning means as shared components, while only the trigger-specific elements vary between module types. This merging approach reduces overall system complexity by eliminating redundant components that would otherwise be needed for each triggering mechanism type.

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If custom drain fittings are manufactured for specific installation situations, then precision of fit for specific geometries is improved, but loss of time increases due to requiring multiple specialized designs and tooling setups

Engineering Contradiction:
Improveprecision of fit for specific geometriesVSAvoidtime for manufacturing and installation
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system segments the customization requirement into two parts: a standardized base body that requires no customization, and interchangeable trigger modules that are selected based on specific installation needs. This segmentation allows the majority of the component (the base body) to be manufactured once with high precision using the same tooling, while only the smaller trigger modules need to be varied, significantly reducing manufacturing time.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The base body is pre-designed and pre-manufactured with standardized mounting features, connection points, and positioning means that can accommodate various trigger modules. This preliminary preparation of the base body with universal interfaces eliminates the need for custom manufacturing for each installation situation, thereby maintaining manufacturing precision while reducing the time required for production and installation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2775048B1Kit comprising a basic drainage body and a plurality of different actuation modules
Publication Date: 2019.04.10 SANITAERTECHNIK EISENBERG GMBH
  • EP2775048B1 patent drawingFigure 1
  • EP2775048B1 patent drawingFigure 2
  • EP2775048B1 patent drawingFigure 3

AI summary

The system has an outlet fitting base body (1) designed as a valve pipe i.e. overflow pipe, and an outlet valve comprising a sealing element arranged at a lower end of the body. A housing encloses the valve pipe, where flushing process is activated through lifting of the valve pipe. The body is connected with releasing modules (250, 300) by a connection unit for modularly forming an outlet fitting (610). The releasing modules are designed as mechanical releasing module, pneumatic releasing module, cable releasing module and stop-releasing module.