Cleaning Head and Handle Locking Interface for Interchangeable Assembly
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Solution Overview
Problem
Existing cleaning devices have fixed handle lengths and diameters, limiting versatility and making it difficult to interchange different handles and cleaning heads, which restricts user convenience and efficiency.
Innovation Solution
A locking mechanism with a female attachment portion on the cleaning head and a male attachment portion on the handle, featuring corresponding triangular cross-sections to prevent rotation and alignment members for secure engagement, allowing for removable and interchangeable attachments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-length handle is used in cleaning devices, then the structural simplicity is maintained, but the versatility and adaptability are limited
Solution Approach 1:
The cleaning device is divided into separate modular components: a cleaning head assembly with a female attachment portion and a handle assembly with a male attachment portion. This segmentation allows independent replacement and interchangeability of handles and cleaning heads, directly improving versatility while maintaining reasonable structural complexity through standardized connection interfaces.
Solution Approach 2:
The attachment mechanism is designed as a universal interface that can accommodate different handle lengths, diameters, and cleaning head types through a standardized male-female connection system. This universal design enables one attachment mechanism to serve multiple functions across various cleaning device configurations, enhancing adaptability without proportionally increasing complexity.
2Ease of operation
If a removable attachment mechanism is implemented, then the ease of operation and assembly is improved, but the reliability of the connection may be compromised
Solution Approach 1:
The attachment portions feature asymmetric triangular cross-sections with specific geometric profiles. The male attachment portion has protruding alignment members that correspond to recesses in the female attachment portion, creating a directionally biased connection that is easy to assemble by pushing but resistant to accidental disassembly, thus maintaining both ease of operation and connection reliability.
Solution Approach 2:
The alignment members and receptacles incorporate curved or tapered surfaces that guide the male attachment portion into proper alignment with the female attachment portion during assembly. This curved geometry facilitates easy insertion while the interlocking triangular profiles maintain stable, reliable connection once assembled, preventing unintended separation.
3Stability of the object's composition
If alignment members are added to prevent rotation, then the stability of the connection is improved, but the device complexity increases
Solution Approach 1:
The alignment function is merged into the basic attachment structure itself. The triangular cross-sections of the male and female attachment portions inherently provide anti-rotation capability through their geometric shape, eliminating the need for separate alignment pins or additional components. This integration maintains connection stability while avoiding increased device complexity.
Solution Approach 2:
The anti-rotation feature is implemented locally at the connection interface through the asymmetric triangular profiles and alignment members, rather than requiring a completely different overall attachment mechanism. This localized geometric feature provides the necessary stability without affecting other parts of the device or significantly increasing overall complexity.
Data Source
AI summary
A merchandizing system for displaying cleaning head assemblies and handle assemblies including a plurality of rail arms extending from a display wall, a plurality of cleaning head assemblies each having an attachment portion and a cleaning head, and a plurality of hanging mechanisms each having an attachment portion for releasable engagement with one of the attachment portions of the cleaning head assemblies. The cleaning head assemblies are supported from the rail arms by the hanging mechanisms, and the plurality of rail arms are angled downward to allow the cleaning head assemblies to be gravity fed.