Liquid Dosing Unit with Water Trap for Toilet Flushing
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Solution Overview
Problem
Existing toilet flushing systems face issues with detergent dosing units being prone to detachment, inconsistent dosing volume, and hygiene concerns, especially with complex systems that are not suitable for high viscous liquids.
Innovation Solution
A liquid dosing unit with a dosing piping system featuring two open ends connected via hoses to the outlet valve of a WC suite, incorporating a water trap and vent device to ensure safe and consistent detergent delivery, using a flexible dosing reservoir connected to the water trap to maintain detergent flow during flushing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a detergent container is attached in the toilet bowl using suction cups, then detergent can be delivered to the bowl, but the container may come loose and fall into the bowl creating an obstacle
Solution Approach 1:
The patent introduces a dosing piping system with hoses as an intermediary mechanism between the detergent source and the toilet bowl. The piping system with rigid connections and proper routing eliminates the need for suction cup attachment, thereby preventing container detachment hazards while maintaining detergent delivery functionality.
2Productivity
If a detergent container is used in the toilet bowl, then detergent can be released with each flush, but the dosing volume varies over time being higher when full and lower when empty
Solution Approach 1:
The patent implements a water trap pre-filled with a specific volume of detergent before operation. This preliminary preparation ensures that during each flush cycle, a consistent and controlled amount of detergent is available for dosing, eliminating the variability that occurs when using containers that deplete over time.
Solution Approach 2:
The system incorporates a feedback mechanism where the water level in the trap and the dosing piping are monitored during flushing. This allows the system to maintain consistent dosing volumes by regulating the flow based on the actual state of the detergent reservoir and trap, ensuring precise and repeatable dosing.
3Adaptability or versatility
If a complex siphon system with inner chambers is used for liquid detergent dosing, then detergent can be dosed, but the construction becomes extremely complex and unsuitable for high viscous liquids
Solution Approach 1:
The patent extracts and eliminates the complex siphon system with inner chambers from the design. By removing this unnecessary complexity, the system achieves a simpler construction that is easier to manufacture and maintain, while still achieving effective detergent dosing functionality for various liquid viscosities.
Solution Approach 2:
The patent employs a simplified hydraulic principle using water pressure from the flushing system to drive detergent through the piping. This approach replaces complex siphon mechanisms with a straightforward pressure-driven flow system that can handle high viscous liquids effectively without requiring intricate internal chambers or siphon structures.
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 system provides a safe, efficient, and consistent detergent delivery to the WC suite, preventing detachment and ensuring hygiene, while accommodating high viscous liquids with a simpler construction.
Implementation Method 1
when the outlet valve is opened for flushing the WC suit, the first hose and second hose will be filled with water up to approximately the same vertical level as the water level inside a water cistern of the WC suit, and remaining air is pressed upwards through the first hose and second hose
Implementation Method 2
The first hose is connected to a first end of the water trap via a vent device
Data Source
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AI summary
A liquid dosing unit for providing detergent to a WC suit is provided. The liquid dosing unit comprises a dosing piping (120, 220) having two open ends (140a, 140b), of which at least one open end (140a) is connecting to an outlet valve (130) of the WC suit, and a water trap (110, 210) arranged between said two open ends (140a, 140b) at a position vertically above said open ends (140a, 140b). The water trap (110, 210) of the dosing piping (120, 220) is configured to enclose detergent, and when the outlet valve (130) is opened for flushing the WC suit, air entrapped in said dosing piping (120, 220) will push detergent arranged at the water trap (110, 210) to flow out from one of said open ends (140a, 140b).