Diaphragm Non-Return Valve Clamping Bracket Design
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Solution Overview
Problem
Existing diaphragm non-return valves in compressed air systems suffer from uncontrolled deformation and premature damage, allowing dirt and moisture to enter, leading to malfunction and corrosion, and the fixing methods, such as rivets or screws, are complex and difficult to install.
Innovation Solution
A diaphragm non-return valve with a clamping bracket that securely attaches the diaphragm disc to the housing, using a holding component with latching clips and catches, which simplifies installation and reduces mechanical stress on the diaphragm material, preventing slipping and twisting, and is made of spring-elastic plastic for optimal clamping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the diaphragm disc is fixed using rivets or screws, then the attachment is secure, but the installation becomes complex and difficult
Solution Approach 1:
The fixing mechanism is divided into multiple clamping elements distributed around the periphery of the diaphragm disc, replacing a single complex rivet or screw connection with several simpler clamping points that collectively provide secure attachment while enabling easier installation
Solution Approach 2:
A clamping bracket is introduced as an intermediary component between the diaphragm disc and the housing, providing a simplified interface that achieves secure attachment through clamping action rather than requiring direct rivet or screw fastening, thus simplifying installation while maintaining reliability
2Ease of operation
If the diaphragm disc is left uncontrolled during opening, then the installation is simpler, but the deformation is uncontrolled leading to premature damage
Solution Approach 1:
The clamping bracket is pre-installed on the housing before the diaphragm disc is attached, establishing predetermined clamping positions that guide and control the deformation of the diaphragm disc during opening, preventing uncontrolled deformation while maintaining installation simplicity
Solution Approach 2:
The clamping force and clamping positions are optimized to allow controlled deformation of the diaphragm disc during opening operation, changing the mechanical parameters of the attachment system to balance installation simplicity with prevention of premature damage
3Manufacturing precision
If the diaphragm disc is securely clamped, then the opening geometry is enhanced, but the mechanical stress on the clamping components increases
Solution Approach 1:
The clamping force is distributed across multiple clamping elements around the periphery of the diaphragm disc rather than concentrated at a single point, achieving enhanced opening geometry through precise positioning while reducing the mechanical stress on each individual clamping component
Solution Approach 2:
The material properties of the clamping bracket are optimized (using spring-elastic plastic) to provide the necessary clamping force for enhanced opening geometry while maintaining acceptable stress levels through material elasticity and energy absorption
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
The solution enhances the opening geometry of the diaphragm disc, simplifies installation, and reduces the risk of damage, while preventing dirt and moisture ingress, thereby improving the reliability and longevity of the valve.
Implementation Method 1
The clamping bracket is made of spring-elastic plastic for optimal clamping
Data Source
AI summary
A diaphragm non-return valve for a compressed air system is provided herein. The diaphragm non-return valve comprises a housing, a purge output formed on the housing, a valve seat formed on the purge output, and a diaphragm disc which is attached to the housing and which lies on the valve seat in the closed state of the non-return valve and is lifted off the valve seat in the open state of the non-return valve. The diaphragm disc is attached to the housing by a clamping bracket, and the clamping bracket has holding component via which the clamping bracket is attached to the outlet-side end of the purge output.