Vacuum Hose Connector With Swivel Retention and Rotation Lock
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Solution Overview
Problem
Existing vacuum cleaner hose connectors do not effectively allow for swiveling of the hose while preventing the connector from moving relative to the vacuum cleaner body, leading to potential detachment during use.
Innovation Solution
A connector design featuring a central tube with an enclosure and rotation prevention structure, including keyways and cooperating keys, that allows the vacuum hose to swivel while preventing rotation of the central tube relative to the enclosure, ensuring secure attachment and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a swivel coupling is used to allow the vacuum hose to swivel, then the ease of operation is improved, but the reliability deteriorates due to potential detachment during use
Solution Approach 1:
The connector allows dynamic swiveling motion of the vacuum hose assembly relative to the vacuum cleaner body through the enclosure and central tube design, while maintaining a fixed rotational position through the keyway-key mechanism. This resolves the contradiction by enabling necessary movement while preventing excessive motion that could cause detachment.
Solution Approach 2:
The keyway and key structure act as an intermediary mechanism between the enclosure and central tube, transmitting the swiveling motion while preventing complete detachment. This intermediate structure allows controlled movement while maintaining reliable connection.
2Ease of operation
If the connector allows free movement, then the ease of operation is improved, but the position stability deteriorates
Solution Approach 1:
The connector design permits dynamic swiveling motion within a controlled range while the keyway-key mechanism maintains a fixed rotational reference position. This allows the hose to be flexible and easy to maneuver while the connector itself maintains stable positional composition relative to the vacuum cleaner body.
3Reliability
If rotation prevention structure is added, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The keyway and key structures introduce asymmetric features to the otherwise relatively simple cylindrical connector design. This asymmetric geometry provides reliable rotation prevention through the interlocking keyway-key mechanism while adding minimal structural complexity compared to more complex locking systems.
Data Source
AI summary
Connector for connecting a vacuum hose to a vacuum cleaner body includes a central tube removably connected to the body and an enclosure that at least partially encloses the central tube and the vacuum hose when positioned partly over the central tube. The connector retains the vacuum hose to allow for swiveling of the vacuum hose about the central tube and prevents rotation between the central tube and the enclosure.