Sanitary Insert Guide Pin Segmentation for Screen Detachment
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Solution Overview
Problem
Sanitary insert units face reliability issues due to the risk of the attachment or filter screen detaching from other components under the restoring force, leading to potential separation and malfunction.
Innovation Solution
The sliding stop is designed as a cross-sectional enlargement of the guide pin, with split pin segments that can deflect radially, and a securing pin is used to prevent unintended deflection, ensuring the throttle or control element remains securely guided and preventing the screen from being lifted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a compression spring is provided as the restoring force acting on the throttle or control core, then the control element can be reliably returned to the initial position, but the attachment screen or filter screen may become detached and the insert unit may fall apart
Solution Approach 1:
The guide pin is divided into multiple segments (first guide pin segment and second guide pin segment) that can deflect relative to each other. This segmentation allows the guide pin to flex under restoring force without transmitting the full force to the attachment screen, preventing detachment while maintaining the return function.
Solution Approach 2:
The guide pin segments are designed with specific material properties and geometric parameters (thickness, length, positioning) that allow them to deflect elastically under the compression spring force. By carefully selecting these parameters, the guide pin can accommodate the restoring force without causing screen detachment.
2Manufacturing precision
If the guide pin is rigid to provide stable guidance for the throttle or control element, then the control element can be accurately positioned, but the attachment screen may be lifted by the restoring force
Solution Approach 1:
The guide pin is segmented into multiple parts that can deflect independently. The first guide pin segment provides stable positioning for the throttle element, while the second guide pin segment can deflect to absorb the restoring force, preventing screen detachment.
Solution Approach 2:
The deflectable guide pin segments act as an intermediary between the rigid positioning requirement and the restoring force. They provide the necessary guidance while simultaneously absorbing the disruptive force through controlled deflection.
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 enhances the functional reliability of the sanitary insert unit by securely holding the throttle or control element on the guide pin, even under strong restoring forces, preventing the attachment or filter screen from detaching and ensuring the unit remains intact.
Implementation Method 1
a compression spring is provided as the restoring force, which also acts on the throttle or control core in the initial position and presses this throttle or control core in the direction of the attachment screen
Implementation Method 2
the throttle or control element can be moved from an initial position under the pressure of the inflowing water against a restoring force into a throttle or control position
Implementation Method 3
a jet splitter, which divides the water flowing through into a large number of individual jets
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
A sanitary insertion unit (1) that can be mounted on the water outlet of a sanitary outlet fitting and has a throttling or regulating device (5) with a throttling or regulating element (6), wherein the throttling or regulating device (5) or at least its throttling or regulating element (6) is slidably guided from an initial position under the pressure of the inflowing water against a restoring force into a throttling or regulating position. A jet splitter (8) is connected downstream of the throttling or regulating device (5) of the insertion unit (1), which divides the flowing water into a plurality of individual jets. A guide pin (10) projects from the jet splitter (8) on the inflow side, on which the throttling or regulating element (6) of the throttling or regulating device (5) is slidably guided.The sliding path between the jet splitter (8) and a sliding stop (11) is limited, which is arranged on the pin end area of the guide pin (10) facing away from the jet splitter (8).