Lateral Valve Sealing Ring and Conical End Design
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Solution Overview
Problem
Existing side valves allow medium contact with sealing adhesives, which is subject to country-specific restrictions and may be prohibited in the future, especially in drinking water supply applications.
Innovation Solution
A side valve design that excludes medium contact with sealing adhesives by using a sealing ring adjacent to the fastening section, preventing medium exposure to the adhesive area, and incorporating a conical end for increased sealing effectiveness and a circumferential bead for thread support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealing adhesive is used to seal the connection between outer sleeve and connecting piece, then sealing effect is improved, but medium contact with adhesive occurs causing regulatory compliance issues
Solution Approach 1:
A sealing ring is introduced as an intermediary element between the medium and the sealing adhesive. The sealing ring is positioned in a receptacle formed by the conical end of the connecting piece and the support in the outer sleeve, creating a physical barrier that prevents medium contact with the adhesive while maintaining the sealing function.
Solution Approach 2:
The sealing function is segmented into two distinct components: the sealing adhesive applied to the screw-in thread area for mechanical bonding, and the sealing ring positioned in the receptacle for medium isolation. This segmentation allows each component to perform its specific function without the drawbacks of the other.
2Object-affected harmful factors
If a sealing ring is added to prevent medium contact with adhesive, then regulatory compliance is improved, but device complexity increases
Solution Approach 1:
The sealing ring receptacle is integrated into the existing valve structure by forming it between the support in the outer sleeve and the conical end of the connecting piece. The conical end serves dual purposes: providing structural support and creating the receptacle geometry, thereby incorporating the sealing function without adding separate complex components.
3Reliability
If conical end is used to compress sealing ring, then sealing effectiveness is improved, but manufacturing precision requirements increase
Solution Approach 1:
The conical end is designed to be deformable under compression, allowing it to elastically deform when the sealing ring is installed and when medium pressure acts upon it. This dynamic behavior compensates for minor variations in manufacturing precision, as the cone can adjust its shape to maintain optimal sealing contact without requiring extremely tight tolerances.
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
Prevents medium contact with adhesives, ensuring compliance with country-specific regulations and achieving a good sealing effect through prestressed sealing ring compression and adequate thread support.
Implementation Method 1
By providing a sealing ring adjacent to the fastening section on its side facing away from the connecting piece, contact of the medium flowing through with the screw-in thread area provided with sealing adhesive is avoided.
Implementation Method 2
During the screwing-in process an increasing compression of the sealing ring previously introduced on the support under prestress is brought about, as a result of which a good sealing effect is achieved.
Data Source
Figure 1
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AI summary
An inner sleeve (3) connects to a water supply introduced into an outer sleeve (1). A groove accommodates a sealing ring arranged adjacent to an attachment section on a side of the groove facing away from a connector piece (2). The inner sleeve has a screw-in thread (32) for screwing into the outer sleeve. The connector piece has a cone-shaped end that can be screwed into the outer sleeve so that an accommodation for the sealing ring is formed between support surface and cone-shaped end. A bead (12) is arranged on the outer sleeve near the connector piece.