Valve Retainer Caulking Structure to Prevent Aging Rattle
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Solution Overview
Problem
The solenoid valve in existing technologies faces issues with the flange being deformed due to aging, leading to gaps and rattling between the retainer and sleeve, compromising the stable fixed state.
Innovation Solution
A valve design that includes a retainer with a flange portion fixed to the casing using a caulking end, with an elastic member sandwiched between the flange and casing to maintain contact through elastic restoring force, preventing rattling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the flange is axially sandwiched between the caulking piece and the end surface of the sleeve, then the retainer and the sleeve can be strongly and simply fixed, but the caulking piece may be deformed due to aging, leading to gaps and rattling
Solution Approach 1:
An elastic member is introduced as an intermediary component between the flange and the end surface of the casing. This elastic member acts as a mediator that maintains continuous contact pressure between the flange and caulking end, compensating for deformation of the caulking piece due to aging, thereby preventing gaps and rattling while maintaining the simplicity of the original fixing structure
Solution Approach 2:
The elastic member changes its physical parameters (elastic deformation) in response to aging-induced deformation of the caulking piece. As the caulking piece deforms over time, the elastic member adjusts its compression state to maintain the necessary contact force, dynamically compensating for dimensional changes without requiring structural modification
2Device complexity
If the flange is axially sandwiched between the caulking piece and the end surface of the sleeve, then the fixing structure is simple, but gaps may form between the caulking piece and the flange due to aging deformation
Solution Approach 1:
The elastic member serves as a mediator that absorbs dimensional variations and maintains precise contact between the flange and caulking end. It compensates for aging deformation without requiring complex adjustment mechanisms, preserving the simplicity of the overall fixing structure while ensuring continuous contact precision
3Stability of the object's composition
If the flange is axially sandwiched between the caulking piece and the end surface of the sleeve, then the initial fixed state is stable, but rattling occurs between the retainer and the sleeve over time
Solution Approach 1:
The elastic member provides beforehand cushioning by being pre-compressed between the flange and the end surface of the casing. This pre-compression creates a resilient contact that anticipates and compensates for future deformation of the caulking piece, maintaining stable contact and preventing rattling throughout the service life of the component
Solution Approach 2:
The elastic member introduces dynamic characteristics to the otherwise rigid fixing structure. Its ability to elastically deform and recover allows the system to adapt to aging-induced changes, transforming a static, brittle connection into a dynamic, resilient one that maintains stability over extended periods
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 elastic member ensures a stable fixed state between the retainer and casing over time, preventing rattling and maintaining proper alignment despite caulking deformation due to aging.
Implementation Method 1
an elastic member is sandwiched between the flange portion and the casing to be axially elastically deformable
Implementation Method 2
the flange portion and the caulking end are maintained in a contact state due to the elastic restoring force of the elastic member
Data Source
AI summary
A valve includes: a casing ; a valve body that is operable inside the casing; a biasing member that biases the valve body; and a retainer that holds the biasing member, wherein the retainer is provided with a flange portion caulked and fixed to the casing by a caulking end provided at one axial end of the casing, and wherein an elastic member is sandwiched between the flange portion and the casing to be axially elastically deformable.