Mini Pump Integrated Valve Core Tool
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Solution Overview
Problem
Presta valve cores often become loose or unthreaded during the process of removing a pump head from a bicycle tire, leading to air leakage, and existing solutions either make the pump bulky or are easily misplaced.
Innovation Solution
A mini pump with an integrated valve core tool that is releasably coupled to one end, featuring a cavity to securely hold the valve core and prevent rotation, allowing for easy access and use without hindering the pump's operation or increasing its size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a valve core tool is attached to a pump, then the valve core tool is more convenient to use, but the pump becomes bulky and unwieldy
Solution Approach 1:
The valve core tool is nested within the pump head assembly, with the tool's cavity housing the valve core when not in use. The tool is positioned such that it fits inside the pump head's internal structure, allowing the pump to maintain its compact size while still providing integrated valve core tightening capability. This nesting approach eliminates the need for external attachments that would increase pump volume.
2Ease of operation
If a valve core tool is attached to a pump, then the valve core tool is more convenient to use, but the pump becomes unwieldy
Solution Approach 1:
The valve core tool is merged with the pump head assembly into a single integrated unit. The tool's cavity is positioned to align with the pump head's valve interface, allowing the valve core to be tightened during the normal pump attachment and detachment process. This merging eliminates the need for separate tool storage and retrieval steps, simplifying the overall device structure while maintaining ease of operation.
Solution Approach 2:
The pump head assembly serves multiple functions: it provides the pumping action for inflating tires and simultaneously acts as the valve core tightening tool. The cavity in the pump head is designed to engage with the valve core during normal operation, allowing the same device to perform both inflation and valve maintenance without requiring additional specialized components.
3Ease of operation
If conventional valve core tools are used, then they can tighten the valve core, but they are easily misplaced and hard to find
Solution Approach 1:
The pump system provides its own valve core tightening capability through the integrated tool in the pump head. The cavity in the pump head automatically engages with the valve core when the pump is attached to the valve, allowing the user to tighten the valve core during the normal pump operation without needing to locate or attach a separate tool. This self-service approach ensures the tool is always available when the pump is in use.
Data Source
AI summary
A mini pump comprising a linear hand pump assembly and a valve core tool is disclosed. The linear hand pump assembly is configured to operate along a longitudinal pump axis and comprises a first end and a second end opposite the first end. The valve core tool is releasably coupled to the first end and has a central tool axis and a cavity centered on, and running parallel to, the central tool axis. The cavity passes through at least one of a top surface and a bottom surface of the tool and is shaped to mate with a valve core such that, with respect to rotation about the tool axis, the valve core is rotationally fixed to the tool. The pump axis and the tool axis are collinear when the tool is coupled to the assembly. The valve core tool and the pump assembly may be threadedly coupled.