Cleaning Device Bristle Alignment via Segmented Handle
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Solution Overview
Problem
Bristles in cleaning devices such as toothbrushes and shoe brushes tend to incline over time, leading to a poor cleaning effect, especially when large forces are applied, as they become easily misaligned within the handle's tubular structure.
Innovation Solution
A cleaning device design featuring a handle with a tubular structure that includes a straight part and a bent part, where the bristle bundle is detachably placed, allowing one end to extend out of the bent part, and incorporating features like strip-shaped openings, weak areas, and one-way limiting buckles to maintain bristle alignment and prevent misalignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the bristle bundle is placed inside the handle's tubular structure, then the device has a compact structure, but the bristles become misaligned and inclined over time
Solution Approach 1:
The handle is divided into a straight part and a bent part, creating distinct functional zones. The bent part specifically addresses bristle alignment issues by providing a curved pathway that maintains bristle orientation during use.
Solution Approach 2:
A limiting buckle is introduced as an intermediary component between the bristle bundle and the handle opening. This buckle acts as a mediator that prevents bristles from moving out of alignment while allowing the bundle to remain securely positioned.
2Ease of repair
If the bristle bundle is detachably placed in the handle, then the device allows for easy adjustment and maintenance, but the structure becomes more complex
Solution Approach 1:
The cleaning device is segmented into separable components: the bristle bundle and the handle with its limiting buckle. This segmentation enables easy detachment and replacement of the bristle bundle without requiring complex disassembly procedures.
Solution Approach 2:
The limiting buckle is designed to automatically maintain bristle alignment through its mechanical structure, eliminating the need for external tools or complex adjustment mechanisms. The device serves itself by using the buckle's geometry to prevent bristle misalignment.
3Stability of the object's composition
If the bent part is located at the end of the straight part, then the bristle bundle remains properly aligned during use, but the handle length increases
Solution Approach 1:
The bent part is localized at a specific position (the end of the straight part) rather than throughout the entire handle. This localized bending provides the necessary alignment function while minimizing the overall increase in handle length.
Solution Approach 2:
The bent part introduces a curved geometry into the handle structure. This curvature allows the bristle bundle to maintain proper alignment by following the bent pathway, while the curvature is designed to be compact to minimize length increase.
Data Source
AI summary
A cleaning device includes a bristle bundle and a handle. The handle has a tubular structure and includes a straight part and a bent part, and the bent part is located at the end of the straight part. The bristle bundle is detachably placed in the tubular structure of the handle, and one end of the bristle bundle extends out of the bent part.