Pneumatic Chuck Valve Core Interface for Fast Fill Without Core Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pneumatic chucks for large vehicular tires face issues such as valve core loss, contamination, overfilling risks, and improper tightening during inflation, due to the removal and reinstallation of the valve core, which can lead to leakage or bursting.
Innovation Solution
A pneumatic chuck with a valve core interface that includes a rotatable and slidable mechanism with a fork to grasp the valve core, allowing for safe removal and reinstallation, and a clutch assembly for torque control to prevent over- or under-tightening, along with transparent internal sleeves for visual confirmation of valve core positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the valve core is removed from the valve stem prior to inflating the tire, then the fill rate of the tire is increased, but the valve core is at risk of being propelled towards the user, misplaced or lost, or allows contaminants to be introduced into the tire interior
Solution Approach 1:
The pneumatic chuck serves as an intermediary device that interfaces with the valve stem and contains the valve core during inflation. The chuck's body and valve core interface create a controlled environment where the valve core can be safely removed, held, and reinstalled without exposing it to external hazards or contamination.
Solution Approach 2:
The valve core interface is designed to extract and hold the valve core within the pneumatic chuck body during the inflation process. This allows the valve core to be separated from the valve stem while being securely contained, enabling high-speed inflation without the risks associated with loose valve core handling.
2Productivity
If the valve core is removed from the valve stem prior to inflating the tire, then the fill rate is increased, but the tire is overfilled to account for air escape during chuck removal and reinstallation, thus increasing the risk of tire bursting
Solution Approach 1:
The pneumatic chuck maintains a continuous sealed connection with the valve stem throughout the inflation process. By keeping the valve core interface sealed and the chuck attached during inflation, the system eliminates air escape that would otherwise require overfilling compensation, enabling precise pressure control without tire bursting risk.
3Ease of operation
If the valve core is manually reinstalled after inflation, then the valve core can be reattached, but it is susceptible to being under tightened which causes leakage or overtightened which breaks the valve core
Solution Approach 1:
The pneumatic chuck automatically performs the valve core reinstallation process through its valve core interface mechanism. The interface design enables the valve core to be self-guided into the valve stem with proper torque control, eliminating manual tightening operations and their associated risks of under or overtightening.
Data Source
AI summary
An air chuck includes a body and a valve core interface. The body includes output, interface, and input ports. The body defines a first passageway that extends between the output and interface ports. The input port defines a second passageway that is in fluid communication with the first passageway. The valve core interface is slidably coupled with the body and is slidable between extended and retracted positions. The valve core interface includes a shaft and a knob. The shaft includes proximal and distal ends. The distal end is at least partially disposed in the first passageway. The knob is coupled with the proximal end of the shaft. The shaft is rotatably coupled with the body and is selectively rotatable in either tightening or loosening directions via the knob. The distal end of the shaft comprises a grasping feature that is configured to grasp a valve core of a valve stem.