Air Valve Snap-Fit Coupling for Easy Maintenance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional air valves for vehicle seats face difficulties in easily separating the valve cap from the valve body during maintenance or repair, as they are typically connected using ultrasonic bonding, which complicates disassembly.
Innovation Solution
The air valve employs a snap-fit method for coupling and decoupling the valve cap and body, featuring an insertion groove and locking bump mechanism that allows for easy attachment and detachment, enabling manual axial movement of the air cut-off unit to block air flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the valve cap is attached to the air valve body by ultrasonic bonding method, then the connection strength between valve cap and air valve body is increased, but the ease of separation during maintenance or repair deteriorates
Solution Approach 1:
The coupling mechanism is segmented into discrete components: the valve cap with protrusions, the air valve body with grooves, and the locking bumps. This segmentation allows the components to be easily assembled and disassembled while maintaining strong connection during operation. The protrusions fit into grooves and lock via locking bumps, creating modular segments that can be separated for maintenance.
Solution Approach 2:
The coupling mechanism transitions from a static permanent bond (ultrasonic welding) to a dynamic reversible connection. The snap-fit mechanism with locking bumps allows the valve cap to be easily attached and detached multiple times, providing dynamic adaptability for both strong connection during operation and easy separation during maintenance.
2Stability of the object's composition
If the valve cap is attached to the air valve body by ultrasonic bonding method, then the structural integrity of the air valve is improved, but the device complexity for assembly and disassembly increases
Solution Approach 1:
The coupling mechanism is divided into distinct functional segments: positioning protrusions that align components, engagement grooves that receive protrusions, and locking bumps that secure the connection. This segmentation achieves structural integrity through precise geometric fitting while keeping the assembly process simple and intuitive.
Solution Approach 2:
The snap-fit mechanism with locking bumps is designed to be self-aligning and self-securing. When the valve cap is pressed onto the air valve body, the protrusions automatically align with the grooves and the locking bumps engage to secure the connection, eliminating the need for complex assembly tools or procedures.
Data Source
Figure 1
Figure 2
AI summary
An air valve includes: a valve body into which an air cut-off unit is inserted; and a valve cap preventing the air cut-off unit from being discharged outside of the valve body, wherein the valve body and the valve cap are coupled to each other by a snap-fit method.