Wall-Built-In Cistern Leakage Protection With Segmented Casing
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Solution Overview
Problem
Existing wall-mounted cisterns for sanitary basins, particularly those made of wood or wood-based materials, face issues with robustness and ease of installation due to flexible plastic covers that are easily damaged and complex sealing joints, posing risks of water leaks and structural damage.
Innovation Solution
A leak protection device comprising a dimensionally stable upper part and a flexible, tubular lower part that surrounds the cistern body and flush pipe, connected in a watertight manner, eliminating the need for additional seals and simplifying installation and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flexible plastic protective cover is used to surround the cistern body, then leak protection is provided, but the cover is easily damaged during transport and installation and damage is not easily detected
Solution Approach 1:
The protective casing is divided into two distinct parts: an upper rigid part made of dimensionally stable material and a lower flexible part made of flexible material. This segmentation allows each part to fulfill its specific function - the rigid upper part provides structural strength and stability, while the flexible lower part provides leak protection and adaptability, thereby resolving the contradiction between reliability and strength.
2Reliability
If a dimensionally stable waterproof shell is used to surround the cistern body, then robust leak protection is provided, but the shell and its components are bulky and sealing the joint is complex
Solution Approach 1:
The protective casing is divided into an upper rigid part and a lower flexible part that can be separately manufactured and then assembled. This segmentation simplifies the overall structure and reduces bulkiness compared to a complete rigid shell, while the flexible lower part naturally adapts to the flush pipe contours, reducing sealing complexity.
Solution Approach 2:
The lower part of the protective casing is made from flexible material that can be formed into a tubular or hose-shaped structure. This flexible lower part surrounds the flush pipe and can be easily connected to the rigid upper part without complex sealing mechanisms, as the flexible material naturally conforms to the pipe shape and creates a water-tight connection.
3Ease of operation
If the flexible lower part is separated from the rigid upper part for storage and transport, then handling and installation are simplified, but additional connection steps are required
Solution Approach 1:
The protective casing is designed as separable components - a rigid upper part and a flexible lower part - that can be stored and transported separately. This segmentation improves handling ease and allows for more compact storage, while the connection mechanism between the two parts is designed to be straightforward and intuitive, minimizing the additional assembly steps required.
Data Source
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AI summary
The invention relates to a wall-mounted cistern (1) for a sanitary basin, in particular a toilet or urinal basin, comprising a cistern body (1.1) having an inspection opening (6) on its front and/or top side, a water inlet connection, a flush pipe (4) for conducting flush water from the cistern body (1.1) to the sanitary basin, and a leakage protection device (7) designed as a watertight casing (7') that at least partially surrounds the cistern body (1.1) and the flush pipe (4). In order to ensure that such a wall-mounted cistern has robust, particularly reliable, and easy-to-handle leakage protection, the invention provides that the casing (7') is formed from a dimensionally stable upper part (8) and a flexible, tubular or hose-shaped lower part (9), which are connected to one another in a watertight manner, wherein the dimensionally stable upper part (8) surrounds the cistern body (1.1).1) at least partially surrounds, while the flexible, tubular or hose-shaped lower part (9) at least partially surrounds the flushing pipe (4).