Sanitary Outlet Fitting with Intermediate Holder and Water Hose
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Solution Overview
Problem
The production of cast sanitary fittings requires costly and labor-intensive machining steps to accommodate sanitary outlet units, and there is a risk of leakage due to shrink holes, which can lead to unusable fittings and increased costs.
Innovation Solution
The outlet fitting design includes an intermediate holder with a connecting branch for a water hose, allowing water to flow through the hose instead of the fitting body, eliminating the need for direct machining and sealing, and using form-fitting and frictional connections to secure the holder, reducing production costs and avoiding leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If machining steps (thread cutting, groove cutting) are performed on cast fittings to enable sanitary outlet unit installation, then the fitting can be securely fastened, but production costs and work outlay increase significantly
Solution Approach 1:
The fitting is divided into a cast body and a separate sanitary outlet unit that can be installed without machining the body. The intermediate holder acts as a transitional component that interfaces with the cast body, allowing the sanitary unit to be attached independently of machining operations on the main body.
Solution Approach 2:
An intermediate holder is introduced as a mediating component between the cast fitting body and the sanitary outlet unit. This intermediate holder provides the necessary fastening interfaces without requiring machining of the cast body, thereby enabling secure attachment while avoiding additional machining costs.
2Reliability
If machining steps are performed on cast fittings to prevent leakage, then sealing reliability improves, but production costs and processing time increase
Solution Approach 1:
The water flow path is extracted from the cast body interior and redirected through a separate water hose. This eliminates the need for machining the cast body to prevent leakage, as the hose provides a dedicated flow path that avoids contact with potential shrink holes in the cast body.
Solution Approach 2:
The water hose serves as an intermediary water channel between the cast body and the sanitary outlet unit. It carries water without requiring direct integration with the cast body, thereby preventing leakage issues associated with machining cast fittings while maintaining production efficiency.
3Reliability
If seals and adhesive layers are used to prevent leakage between intermediate holder and fitting body, then sealing is achieved, but production costs increase due to food-compatible material requirements
Solution Approach 1:
The water flow path is extracted from the interface between the intermediate holder and fitting body, routing water through a separate hose. This eliminates the need for sealing at the interface, as water does not flow through the potential leakage path between these components.
Solution Approach 2:
The water hose acts as an intermediary that separates the water flow from the interface between the intermediate holder and fitting body. This eliminates the need for food-compatible seals and adhesive layers at this interface, reducing production costs while maintaining sealing reliability where water contact occurs.
4Device complexity
If direct water flow through the cast fitting body is used, then the structure is simple, but shrink holes cause leakage and unusable fittings
Solution Approach 1:
A water hose is introduced as an intermediary water channel within the cast body. This hose carries water from the inlet to the sanitary outlet unit, providing a reliable water flow path that avoids contact with shrink holes in the cast body while maintaining relatively simple overall structure.
Solution Approach 2:
The water flow path is segmented into separate components: the cast body provides structural support and housing, while the water hose provides the dedicated water transport path. This segmentation allows each component to be optimized independently, with the hose ensuring leakage-free water flow despite cast body imperfections.
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 design reduces production costs by eliminating machining and sealing requirements, allows for easy maintenance and repair, and produces a hygienic water channel without direct contact with the fitting, while maintaining secure and reliable connections under high water pressures.
Implementation Method 1
a water hose (4) guided in the tube interior (4) of the fitting body (3), wherein the water flowing through the water hose (4) can flow via the connecting branch (8) into the intermediate holder (2)
Implementation Method 2
using form-fitting and frictional connections to secure the holder
Data Source
AI summary
A sanitary outlet fitting (1) having a fitting body (3), the body interior of which opens into a water outlet (5), with an intermediate holder (2) which (2) is fastenable in the water outlet (5), and with a sanitary insert (6) which is insertable into the end side of the intermediate holder (2), the end side being of open design and being on the outflow side, and is fixable therein. The outlet fitting has, on the inflow side, the intermediate holder (2) connected or connectable to a water hose guided in the tube interior (4) of the fitting body (3).