Sanitary Outlet Valve with Integrated Ventilation
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Solution Overview
Problem
Conventional sanitary outlet units face challenges in ensuring reliable ventilation of the water jet with high tightness against backflowing water and integrating ventilation devices into existing fittings without major structural changes, particularly with extendable swivel arms where backpressure causes leakage and unsightly ventilation openings.
Innovation Solution
The ventilation device is integrated into the valve part with a ventilation channel between an inlet opening and an outlet opening, and an actuator changes the air supply to the water jet, sealing the inlet opening in its closed position to prevent backflow, allowing for flexible design integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ventilation device is arranged outside the valve part, then the aeration function is achieved, but the tightness against backflowing water deteriorates and structural complexity increases
Solution Approach 1:
The ventilation device is merged with the valve part by integrating the ventilation channel directly into the valve body structure. The ventilation channel extends from the ambient air through the valve part to the water jet, eliminating the need for separate external ventilation components and ensuring tight integration that prevents backflow leakage.
Solution Approach 2:
The valve part is designed to perform multiple functions: it regulates water flow from the water line and simultaneously provides ventilation for the water jet through the integrated ventilation channel. This multi-functionality eliminates the need for separate ventilation devices and reduces overall structural complexity.
2Reliability
If the ventilation opening is provided in the fitting, then the aeration function is achieved, but the aesthetic design deteriorates
Solution Approach 1:
The ventilation function is extracted from the fitting body and relocated to the valve part. The ventilation channel is formed within the valve part structure, allowing the fitting to maintain its aesthetic design without visible ventilation openings, while the valve part internally provides the necessary aeration function.
3Reliability
If the actuator is positioned to seal the inlet opening, then the tightness against backflow is improved, but the ease of operation deteriorates
Solution Approach 1:
The actuator is designed to automatically seal the inlet opening of the ventilation channel when in the closed position. The sealing function is integrated into the actuator's normal operation, eliminating the need for separate sealing mechanisms and ensuring reliable tightness against backflow while maintaining ease of operation through the existing actuator mechanism.
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 solution ensures reliable ventilation and tightness against backflow while allowing for aesthetic and design flexibility in sanitary outlet units, enabling integration into existing fittings without significant structural modifications.
Implementation Method 1
the actuator in its closed position overlaps and seals the inlet opening of the ventilation device
Implementation Method 2
at least one ventilation device (4) provided for aerating the water jet
Data Source
Figure 1~4
Figure 5~6
Figure 7~8
AI summary
The invention relates to a sanitary outlet unit (1) comprising an outlet fitting (2) having at least one water outlet (3) and comprising an aeration device (4) provided for aerating the water flow and arranged in the flow direction spaced from and upstream of the at least one water outlet (3), and comprising at least one valve part (5), which regulates the inflow from at least one water pipe (7) to the water outlet (3). In order to provide a sanitary outlet unit (1) that ensures reliable aeration of the water flow combined with good water tightness to water running back and that can be integrated without undue structural modifications into existing fittings, according to the invention the aeration device (4) is received in the at least one valve part (5) and the aeration device (4) is provided with at least one actuator (6), the movement of which between at least one closed and at least one open position alters the admission of ambient air to the water flow inside the valve part (5).