Sanitary Fitting Sleeve-Shaped Cartridge Insert Receptacle
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Solution Overview
Problem
Current sanitary fittings have complex component designs and assembly processes due to multiple sealing elements in the water flow path, leading to increased complexity and effort during installation.
Innovation Solution
Integration of additional receiving geometries on the flexible mixed water hose within the sanitary fitting, which merges into a sleeve-shaped cartridge insert receptacle, reducing component complexity and assembly effort by providing a liquid-tight seal without metal contact, and using a corrugated hose geometry for easier production and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sealing elements are used in the water flow path, then liquid-tight sealing is improved, but device complexity and assembly effort increase
Solution Approach 1:
The patent combines the flexible mixed water hose with the cartridge insert receptacle into a single integrated component. The flexible hose is molded directly onto the receptacle in one piece, eliminating the need for separate sealing elements and connections between these components. This merging reduces device complexity while maintaining liquid-tight sealing through the integrated design.
2Reliability
If multiple sealing elements are used in the water flow path, then liquid-tight sealing is improved, but assembly effort increases
Solution Approach 1:
The flexible mixed water hose and cartridge insert receptacle are pre-assembled into a one-piece unit using plastic injection blow molding during manufacturing. This preliminary assembly eliminates the need for field assembly of multiple sealing components, significantly reducing installation effort while ensuring reliable liquid-tight sealing is achieved during production rather than during installation.
3Adaptability or versatility
If radially protruding connecting pieces are used for mixed water connection, then connection functionality is improved, but device complexity increases
Solution Approach 1:
The patent integrates the mixed water connection functionality directly into the cartridge insert receptacle structure. The receptacle is designed with an integrated opening edge area that forms the sealing surface, eliminating the need for separate radially protruding connecting pieces. This merging maintains connection functionality while reducing device complexity.
4Device complexity
If integrated receiving geometries are used on the flexible hose, then component complexity is reduced, but manufacturing process complexity increases
Solution Approach 1:
The patent employs plastic injection blow molding, a specific manufacturing process that changes the manufacturing parameters to enable integration of complex geometries. This process allows the flexible hose and receptacle to be molded as one piece with integrated receiving geometries, reducing component complexity while managing manufacturing complexity through a specialized but established process.
Data Source
AI summary
The invention relates to a sanitary fitting with a hollow cylindrical fitting body (1) in which a cartridge insert (7) is arranged, which fluidically connects a mixing cartridge to a flexible mixing water hose (19), wherein the cartridge insert (7) has a mixing water connection (27) to which the flexible mixing water hose (19) is connected in a liquid-tight manner. According to the invention, the flexible mixing water hose (19) transitions at the connection end into a sleeve-shaped cartridge insert receptacle (29). The sleeve-shaped cartridge insert receptacle (29) surrounds the cartridge insert (7) in a liquid-tight manner. In addition, a passage (33) is formed in the sleeve wall (31) of the sleeve-shaped cartridge insert receptacle (29) through which the mixed water flows from the cartridge insert (7) into the flexible mixing water hose (19).