Sanitary Fitting Cartridge Hose Connection Without Extra Seals
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Solution Overview
Problem
The production of existing sanitary fittings is complex due to the need for secure attachment of hose lines to cartridges, which involves significant effort in incorporating introduction openings and sealing between hose connection elements and cartridge adapters.
Innovation Solution
The hose connection element of the hose line is retained in a secured manner on the cartridge or cartridge adapter, eliminating the need for additional seals and reducing the complexity of the fitting housing by integrating the hose line directly with the cartridge, thereby simplifying the production process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hose lines are attached to cartridge adapters using introduction openings and axial securing means, then the hose lines are securely retained, but the production effort and device complexity increase significantly
Solution Approach 1:
The hose connection element is integrated directly into the cartridge body, merging two previously separate components (hose connection element and cartridge) into one unified structure. This eliminates the need for separate cartridge adapters, introduction openings in the fitting housing, and axial securing means, thereby reducing device complexity while maintaining secure hose line retention through the unified design
Solution Approach 2:
The hose connection element is extracted from the cartridge adapter structure and directly incorporated into the cartridge body. This extraction eliminates the intermediate cartridge adapter component and its associated sealing and securing mechanisms, simplifying the overall structure while preserving the essential function of secure hose line attachment
2Reliability
If multiple seals are used between hose connection elements and cartridge adapters, then liquid-tight sealing is achieved, but manufacturing complexity and material costs increase
Solution Approach 1:
By merging the hose connection element with the cartridge body into a single integrated component, the invention eliminates the interfaces between separate parts that would require sealing. The unified structure inherently provides liquid-tight sealing without requiring additional seal elements, thereby simplifying manufacturing while maintaining sealing reliability
Solution Approach 2:
The invention extracts and eliminates the cartridge adapter component that would otherwise require multiple seals at its interfaces. By directly integrating the hose connection into the cartridge, the design removes the intermediate sealing stages, reducing both material requirements and manufacturing complexity while achieving the same liquid-tight sealing function
Data Source
AI summary
A sanitary fitting (100) including a fitting housing (102) having a housing interior (103) into which a cartridge (106) or a cartridge adapter having a cartridge provided in a cartridge receptacle (105) is inserted, which cartridge has at least one inlet opening connected to at least one outlet opening of the cartridge (106) to conduct fluid through the cartridge (106). The fitting includes—at least one hose line (108) for supplying the fluid to the cartridge (106), which hose line has, at least at the end close to the cartridge, a hose connection element (109). The hose connection element (109) is securely held in a retaining position on the cartridge (106) or on the cartridge adapter, to prevent removal, and the free end of this element that encircles a hose opening (111) lies against the edge region of the cartridge (106) that encircles the associated inlet opening.