Hand held rotary cleaning tool including liquid dispenser
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Solution Overview
Problem
Handheld rotary cleaning tools with flexible splash guards can interfere with the output shaft and cleaning accessories, leading to increased load and reduced battery life due to interference, which may cause motor stalling and decreased performance.
Innovation Solution
A handheld rotary cleaning tool design featuring a flexible splash guard that surrounds the output shaft and cleaning accessory, with a liquid reservoir and delivery line that directs cleaning solution between the splash guard and the surface, preventing splash and optimizing liquid distribution using ridges and openings in the connector to ensure efficient cleaning without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a flexible splash guard is used to prevent liquid splash, then liquid containment is improved, but the splash guard may fold in and interfere with the cleaning accessory or output shaft, causing increased load and motor stalling
Solution Approach 1:
The splash guard is designed with dynamic characteristics that allow it to flex and move with the rotational motion of the output shaft and cleaning accessory. The guard can deform under centrifugal force during rotation, preventing interference with moving parts while maintaining liquid containment barriers.
Solution Approach 2:
The splash guard is divided into multiple segments or sections that can move independently. This segmentation allows different portions of the guard to adapt to the rotational motion and liquid flow patterns, preventing interference with the output shaft and cleaning accessory while maintaining effective liquid containment.
2Adaptability or versatility
If the splash guard is made flexible to adapt to cleaning surfaces, then adaptability is improved, but interference with the output shaft increases, reducing battery life
Solution Approach 1:
The flexible splash guard incorporates dynamic movement capabilities that allow it to adapt to different cleaning surfaces and angles during rotation. The guard can flex outward under centrifugal force and return to its original position, providing adaptability without creating persistent interference that would increase energy consumption.
Solution Approach 2:
The splash guard operates with periodic flexing and returning motions synchronized with the rotational cycle of the output shaft. This periodic action allows the guard to maintain contact with cleaning surfaces during specific phases of rotation while clearing away from the output shaft during other phases, reducing overall interference and energy loss.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution prevents liquid splash, reduces motor stalling, and extends battery life by ensuring efficient liquid distribution and minimizing interference between the splash guard and output shaft, enhancing the tool's operational performance and user experience.
Implementation Method 1
a liquid delivery line that extends between the reservoir and the splashguard. The liquid delivery line provides a fluid path from the reservoir to the splash guard
Implementation Method 2
The ridges are spaced apart, and each ridge is aligned with a radius of the rotational axis
Data Source
AI summary
A hand-held rotary cleaning tool includes a housing that encloses an electric motor and a gear set that connects the motor to an output shaft. The rotary cleaning tool includes at least one cleaning accessory that is detachably connected to the output shaft, and a flexible splash guard. The splash guard surrounds the output shaft and cleaning accessory so as to prevent liquid splash during tool use. The rotary cleaning tool also includes a reservoir for storing a liquid cleaning solution, and a liquid delivery line that delivers liquid from the reservoir to the space enclosed by the splash guard.