Pivoting Sanitary Fitting With Hose-Routed Non-Circular Outflow
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Solution Overview
Problem
Existing fluidic fittings face challenges with complex fluidic sealing at pivoting locations, restricted design due to valve placement within the fitting body, and difficulty in achieving non-circular jet shapes, which limits design flexibility and increases manufacturing complexity.
Innovation Solution
A fluidic assembly featuring a non-circular outflow piece with a corresponding outflow piece connector, allowing for fluidic connection without direct sealing to the fitting, enabling arbitrary shapes and increased design flexibility. The outflow piece can be easily replaced, and the fitting housing does not require sealing on pivotable outflow pipes, simplifying manufacturing and reducing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the valve is disposed within the fitting body, then the fitting structure is compact, but the design freedom is restricted and sealing becomes complex
Solution Approach 1:
The invention divides the fitting into separate functional modules: the fitting body housing and the fluidic assembly containing the valve and outflow piece. This segmentation allows independent optimization of each module, enabling compact overall structure while maintaining design freedom in the fluidic components.
Solution Approach 2:
The patent introduces an intermediary connection system between the fitting body and outflow piece, using a hose or flexible conduit as a mediator. This allows the valve to be positioned within the fitting body while the outflow piece maintains design independence, resolving the conflict between structural compactness and design freedom.
2Reliability
If the outflow piece is sealed directly to the fitting outflow, then fluidic sealing is achieved, but the shape is restricted to circular forms
Solution Approach 1:
The patent introduces an intermediary sealing system using a hose or flexible conduit between the fitting outflow and the outflow piece. This intermediary element provides reliable fluidic sealing while accommodating non-circular shapes, as the flexible connector can adapt to various geometries without requiring direct rigid sealing contact.
3Ease of manufacture
If the outflow piece connector is made from plastics material, then manufacturing is simplified, but sealing requirements increase
Solution Approach 1:
The patent uses a hose or flexible conduit as an intermediary sealing element that connects to the plastics material outflow piece connector. This intermediary provides the necessary sealing function while allowing the connector itself to be manufactured from simple plastics material, maintaining ease of manufacture while ensuring reliable sealing through the flexible connector interface.
Data Source
AI summary
A sanitary fitting (1) having a fitting housing (2) in which a valve (5) is disposed, an outflow pipe (11) in which an outflow piece (13) is disposed and which is connected to the fitting housing (2), and an outflow hose (15) which fluidically connects the outflow piece (13) to the valve (5). The outflow pipe (11) is designed to be pivotable relative to the fitting housing (2); the outflow hose (15) has, at a location spaced apart from both its ends, a fixed deflection (16); and the fitting housing (2) has a duct (17) in which the outflow hose (15) is routed and in which the outflow hose (15) is rotatable about an axis running along a pivot axis of the outflow pipe (11).