Flattened Water Compartment and Magnetic Float for Toilet Valve Control
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Solution Overview
Problem
Conventional flush water supply devices for toilets face issues where the water supply valve cannot be opened if the water level in the tank is above a certain position, leading to prolonged delay in water supply and potential user misunderstanding of the device as malfunctioning, especially when water savings are prioritized, resulting in unstable valve operations and reduced water efficiency.
Innovation Solution
A flush water supply device with a water supply unit, a water compartment, a float, and a swingable member that allows the water supply valve to be opened and closed based on water level changes, featuring a flattened water compartment shape and a specific lever ratio to ensure reliable water drainage and efficient operation even with reduced water levels, along with a check valve made of material with specific gravity less than water for stable movement and buoyancy control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the water level in the flush water tank is maintained above the opening position of the small tank bottom, then water supply reliability is improved, but flush water consumption increases
Solution Approach 1:
The patent employs dynamic water level detection through a float mechanism that automatically adjusts the water supply valve opening based on real-time water level changes in the flush water tank. The float rises and falls with water level, dynamically controlling the valve to maintain optimal water levels without waste, while ensuring sufficient water is always available for flushing.
Solution Approach 2:
The patent replaces conventional mechanical float-valve linkage with a magnetic field-based detection system. A magnetic float detects water level position and actuates the water supply valve through magnetic force, eliminating complex mechanical linkages and improving response reliability while enabling more precise water level control to reduce consumption.
2Loss of substance
If the amount of flush water reserved in the flush water tank is reduced, then water efficiency is improved, but the difference in height between water-stopping water level and post-discharge dead water level becomes reduced, making stable valve operation difficult
Solution Approach 1:
The patent replaces the conventional mechanical float-and-lever valve control system with a magnetic field-based detection and actuation system. A magnetic float detects water level position and uses magnetic force to directly actuate the water supply valve, eliminating mechanical linkage complexities and improving response reliability even with reduced water level differences.
Solution Approach 2:
The patent changes the control parameter from mechanical position linkage to magnetic field interaction. The magnetic float's position in the magnetic field directly controls valve opening through magnetic force magnitude, allowing stable valve operation with minimal water level changes by responding to small variations in magnetic field strength rather than requiring large mechanical displacements.
3Ease of operation
If a conventional float mechanism is used with a tub-like small tank, then the water supply valve can be opened interlockingly with the float, but the water supply valve cannot be opened if the water level is above the opening position of the small tank bottom, causing delay time
Solution Approach 1:
The patent replaces the conventional mechanical float-valve linkage with a magnetic field-based system where a magnetic float detects water level and actuates the valve through magnetic force. This eliminates the mechanical linkage delay and allows immediate valve response whenever the float reaches the appropriate position, regardless of the small tank bottom opening position.
Solution Approach 2:
The magnetic float is positioned and prepared in advance within the magnetic field gradient, so that when water level rises to the required position, the magnetic force immediately actuates the valve without mechanical linkage delays. The system is pre-configured so the float's position directly correlates to the valve opening requirement, eliminating sequential mechanical steps.
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
The solution ensures stable and reliable drainage of flush water, promptly opening and closing the water supply valve to maintain efficient water usage and prevent user confusion, even with minimal water levels, thus enhancing the reliability and efficiency of the flush water supply system.
Implementation Method 1
a float provided inside the water compartment and adapted to be moved upwardly and downwardly according to a change in water level within the water compartment
Implementation Method 2
a swingable member having one end connected to the float and the other end connected to the water supply valve of the water supply unit, wherein the swingable member is adapted, according to the upward and downward movements of the float, to be swingably moved about a fulcrum located adjacent to the water supply valve
Implementation Method 3
a check valve made of material with specific gravity less than water for stable movement and buoyancy control
Data Source
AI summary
A flush water supply device includes: a water supply unit including a water supply valve; a water compartment fittingly attached to the water supply unit; a float provided inside the water compartment; and a swingable member having one end connected to the float and the other end connected to the water supply valve, wherein the water compartment is formed in a flattened shape in which a maximum vertical length becomes less than a maximum horizontal length by a given value, and a ratio of a distance between the fulcrum adjacent to the water supply valve and an effort point defined by the swingable member and the float, to a distance between the fulcrum adjacent to the water supply valve and a load point defined by the swingable member and the water supply valve is set to a given value or more.