In-wall Cistern Fill Valve Magnetic Control
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Solution Overview
Problem
Conventional concealed cisterns face difficulties in maintenance and installation due to small inspection openings, which restrict the installation of functional parts and require assembly within the cistern body, making them prone to leakage and limiting design aesthetics.
Innovation Solution
The filling valve is arranged outside the box body, utilizing a magnet system with a magnet and magnetizable counterpart to control the valve leak-free, allowing larger inspection openings and enabling maintenance-free operation, with the drain valve also positioned outside to prevent water damage and facilitate easier access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the access panel is made small for aesthetic reasons, then the wall surface appearance is improved, but the installation and maintenance of functional components becomes difficult
Solution Approach 1:
The filling valve is extracted from the interior of the cistern body and positioned outside, allowing the access panel to be minimized for aesthetic purposes while maintaining full accessibility to the filling valve for installation and maintenance through a separate external access point
2Shape
If the access opening is made small, then the aesthetic design is improved, but the installation of functional parts inside the cistern body becomes difficult and error-prone
Solution Approach 1:
The filling valve is positioned outside the cistern body, eliminating the need for complex installation through a small access opening. The external positioning allows for precise installation without the constraints of limited access space, while the access panel can be minimized for aesthetic purposes
3Volume of moving object
If the filling valve is arranged inside the cistern body, then the compact design is improved, but the risk of leakage and maintenance requirements increase
Solution Approach 1:
The filling valve is extracted from the interior of the cistern body and positioned externally, eliminating the need for penetration through the cistern wall. This removes potential leakage points at penetration interfaces while maintaining compact cistern design, and enables easy maintenance access without disassembling the cistern structure
Solution Approach 2:
A magnetic coupling system acts as an intermediary between the float inside the cistern and the filling valve outside. The magnetic field transmits the control signal through the cistern wall without physical penetration, ensuring leak-free operation while maintaining reliable control of the filling process
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 ensures reliable, leak-free operation with minimal space requirements, improving the reproducibility and responsiveness of the filling process while allowing for a seamless, uninterrupted wall design above the toilet bowl.
Implementation Method 1
a magnetic system which has at least one magnet and a magnetic or magnetizable counterpart that interacts with the magnet
Data Source
Figure 1~2
Figure 3~6
Figure 7~8
AI summary
The invention relates to a concealed cistern for a toilet or urinal bowl, comprising a cistern body (3.1) for storing flush water, a float (8) arranged within the cistern body (3.1), and a fill valve (6) controlled by the float (8). To enable a maintenance-free concealed cistern, the float-controlled fill valve (6) is arranged outside the cistern body (3.1). To ensure leak-free actuation of the fill valve (6), the fill valve (6) and a control element (8.1) connected to the float (8) are, according to the invention, provided with a magnetic system comprising at least one magnet (9.1) and a magnetic or magnetizable counterpart (9.2) interacting with the magnet, wherein the magnet (9.1) and the counterpart (9.2) are arranged on opposite sides of a liquid-tight wall (6.1) of the fill valve (6) and/or the cistern body (3.1).