Universal Valve Nozzle With Reversible Pin for Schrader and Presta
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Solution Overview
Problem
Existing inflation devices for bicycle tires require separate adapters or methods for Schrader and Presta valves, leading to bulkiness, complexity, and reliability issues due to misplaced valve pins.
Innovation Solution
A portable universal valve nozzle with a valve pin that can switch between two states to accommodate both Schrader and Presta valves, featuring a detachable housing and sealing mechanisms for airtight connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a main unit of an inflating pump is used together with a silicone air hose and Schrader valve adapter, then it can adapt to both Schrader and Presta valves, but the device becomes relatively large and occupies more space
Solution Approach 1:
The patent combines the valve pin storage function directly into the valve nozzle body, merging two previously separate components (nozzle and storage container) into a single integrated structure. This eliminates the need for separate adapters and reduces overall device volume while maintaining compatibility with both valve types.
Solution Approach 2:
The valve nozzle body is designed to perform multiple functions: it serves as both the inflation interface and the storage container for the valve pin. This multi-functional design allows the device to work with different valve types without requiring additional components, thereby reducing device size.
2Volume of moving object
If a valve nozzle structure is directly installed onto an ultra-small inflating pump without air pipe adapter, then the device size is reduced, but the valve pin cannot be stored in the device and cyclists may forget to take it
Solution Approach 1:
The storage function for the valve pin is merged into the valve nozzle body itself. The hollow internal cavity of the nozzle body serves as the storage space, eliminating the need for separate storage containers while ensuring the pin is always available with the device.
Solution Approach 2:
The valve pin is nested within the hollow cavity of the valve nozzle body. This nested structure allows the pin to be stored inside the nozzle itself, ensuring it cannot be lost or forgotten while maintaining a compact overall device size.
3Adaptability or versatility
If the valve pin is removed for Presta valve adaptation, then the valve can be adapted to Presta valve interface, but the valve pin is lost and Schrader valve inflation becomes impossible
Solution Approach 1:
The valve pin is pre-stored in the hollow cavity of the valve nozzle body before use. This preliminary preparation ensures that when switching between valve types, the pin is readily available for reinstallation, preventing loss and ensuring reliable operation with both valve types.
Solution Approach 2:
The hollow cavity of the valve nozzle body acts as an intermediary storage space that holds the valve pin during transitions between different valve types. This intermediary structure facilitates smooth switching between Schrader and Presta valves without risking pin loss.
Data Source
AI summary
Disclosed are a portable universal valve nozzle and an inflation device thereof. The portable universal valve nozzle includes a valve nozzle body composed of a first connection port and a second connection port; a valve pin arranged inside the valve nozzle body composed of a rod-shaped pin head and a hollow tubular pin body; where the valve pin is arranged inside the valve nozzle body in an axial direction in two different states; in a first state, the pin head points toward the first connection port; and in a second state, the pin head points toward the first connection port. The portable universal valve nozzle achieves convenient compatibility with both the Schrader valve and the Presta valve while ensuring good airtightness. Through two different installation states of the pin head, the portable universal valve nozzle of the present disclosure can adapt to different types of valve nozzles.