Presta Valve Core Removal Head With Flexible Core Retention
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Solution Overview
Problem
Conventional removal tools for air valve cores are cumbersome, require manual handling, and lack stability, leading to potential core dropping and inefficient removal processes.
Innovation Solution
A simplified removal tool with Presta and Schrader detachable heads, featuring flexible positioning means and actuation planes, allowing secure and easy detachment of air valve cores through rotational engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional removal tool with detachable head and opening is used, then the core can be detached easily, but the core cannot be fixed securely causing dropping and troublesome removal
Solution Approach 1:
The removal tool incorporates a resilient member that can dynamically adapt its state. When the actuating member is pressed, the resilient member deforms to allow core insertion, then returns to its original state to clamp and secure the core. This dynamic behavior enables both easy detachment and secure fixation of the core throughout the removal process.
2Ease of manufacture
If the removal tool structure is simplified to reduce components, then fabrication cost is lowered and service life is prolonged, but the connecting process may become less stable
Solution Approach 1:
The removal tool merges multiple functions into a single integrated body structure. The body simultaneously provides structural support, guides the core through its longitudinal opening, houses the resilient member for clamping, and interfaces with the valve stem. This consolidation reduces component count and fabrication cost while maintaining connecting stability through the unified design.
3Device complexity
If manual removal of core is required due to tool limitations, then the tool structure can be simpler, but the removal process becomes less efficient and more troublesome
Solution Approach 1:
The removal tool is designed to perform the complete core removal process automatically once activated. The user simply presses the actuating member, which triggers the resilient member to automatically clamp the core and the actuating member to rotate and extract the core from the valve stem. This self-service mechanism eliminates the need for manual core handling and significantly improves removal efficiency.
Data Source
AI summary
A removal tool is applied to remove a Presta valve, the Presta valve includes a Presta core, the Presta core includes a fixing portion with screw threads, and the fixing portion of the Presta valve has two drive faces not having screw threads. The fixing portion of the Presta valve also has a valve head. The removal tool includes a body. The body includes a Presta detachable head which has a Presta cutout, two Presta actuation planes, and a through orifice. A Presta flexible positioning means is fixed on the Presta cutout of the Presta detachable head of the body and is staggered from the two Presta actuation planes, and the Presta flexible positioning means corresponds to the fixing portion of the Presta core.