Portable Air Pump Folding Hose Assembly Without Loose Cap
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Solution Overview
Problem
Existing portable air pumps require reassembly of the hose after each use and the hose must be stored away, with the cap being easily lost, causing inconvenience during assembly and disassembly.
Innovation Solution
A portable air pump design featuring a folding inflating assembly with a sliding member and pivoting member that allows the inflating tube to be retracted and extended without detachment, equipped with a seal cap to prevent accidental disconnection and a flexible anti-loss portion to maintain assembly integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hose is made detachable for easy assembly and disassembly, then the ease of operation is improved, but the reliability deteriorates as the cap is easily lost
Solution Approach 1:
The patent combines the cap and the inflating tube into a single integrated assembly. The cap is no longer a separate detachable component but is permanently attached to the inflating tube, forming one unified structure. This eliminates the risk of losing the cap while maintaining the ease of connection and disconnection of the entire inflating assembly.
2Loss of time
If the hose is stored in the hose chamber after use, then the loss of time for storage is reduced, but the device complexity increases due to additional sealing requirements
Solution Approach 1:
The patent merges the storage function into the integrated cap-inflating tube assembly. The inflating tube with attached cap serves as both the connection interface and the storage container, eliminating the need for a separate hose chamber and its associated sealing mechanisms.
Solution Approach 2:
The patent extracts the hose storage function from the main pump body and integrates it into the inflating assembly itself. The hose is stored within the inflating tube structure, removing the need for a dedicated storage compartment in the pump body.
3Ease of operation
If the inflating assembly is made foldable for portability, then the ease of operation is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent implements a dynamic folding mechanism that allows the inflating assembly to transition between extended and retracted positions. The folding structure enables the assembly to be compacted for portability while maintaining structural integrity and ease of deployment when needed.
Data Source
AI summary
A portable air pump includes a pumping assembly and an inflating assembly. The pumping assembly includes an inner cylinder and an outer cylinder. The inner cylinder is provided with a first end and a second end, and the outer cylinder is sleeved onto an outer periphery of the inner cylinder from the first end. The inflating assembly includes a sliding member, an inflating tube, and a pivoting member. The sliding member is disposed in the inner cylinder. The inflating tube has a proximal end connected with the pivoting member. The pivoting member is pivotally mounted on the sliding member to be rotatable between an axial position and a radial position. When the pivoting member is in the axial position, the sliding member is movable between a retracted position and an extended position.