Cleaning robot having improved driving and cleaning ability
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Solution Overview
Problem
Conventional cleaning robots experience wobbling and reduced effectiveness due to the dust collecting blade getting stuck on bumpy or uneven surfaces, leading to noise, malfunction, and reduced lifespan, as well as dust escape through gaps formed over time.
Innovation Solution
A cleaning robot design featuring a dust collecting blade with a lower end bent opposite to the travel direction, supported by a bracket and fixed with a coupler, utilizing elastic materials to maintain shape and prevent gap formation, along with a rotary brush configuration of alternating brush lengths to enhance dust collection and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the dust collecting blade is arranged with a predetermined gap from the ground surface to avoid getting stuck, then the robot can move smoothly over bumps and gaps, but dust and debris escape through the gap reducing cleaning effectiveness
Solution Approach 1:
The dust collecting blade is designed with elastic material properties, allowing it to dynamically adjust its position. During normal operation, the blade maintains contact with the ground for effective dust collection. When encountering obstacles like bumps or gaps, the elastic blade naturally deforms or lifts slightly, preventing the robot from getting stuck while maintaining cleaning effectiveness through the bracket support system.
Solution Approach 2:
The patent changes the physical parameters of the dust collecting blade by using elastic materials with specific flexibility characteristics. This allows the blade to change its contact state with the ground surface dynamically - maintaining close contact for cleaning while accommodating surface variations without getting stuck, thus resolving the contradiction between cleaning effectiveness and driving stability.
2Productivity
If the dust collecting blade is arranged diagonally towards the traveling direction to improve dust collection, then dust and debris are easily guided to the dust box, but the blade gets repeatedly stuck on bumps and gaps causing wobbling and malfunction
Solution Approach 1:
The elastic dust collecting blade dynamically adapts to ground surface variations. The bracket support system provides a pivot point that allows the blade to flex upward when encountering obstacles, preventing repeated sticking and wobbling while maintaining the diagonal orientation needed for effective dust guidance during normal operation.
Solution Approach 2:
The bracket support structure acts as a cushioning mechanism that absorbs the impact when the blade encounters bumps or gaps. This pre-configured support system prevents the blade from getting stuck by providing a fulcrum point that allows controlled deformation, thereby maintaining operational stability while preserving dust collection efficiency.
3Productivity
If the bottom edge of the dust collecting blade contacts the ground surface to prevent dust escape, then cleaning effectiveness is maintained, but the blade wears down over time creating gaps that reduce effectiveness
Solution Approach 1:
The dust collecting blade is constructed from elastic material that forms a flexible element. This flexibility allows the blade to maintain contact with the ground for effective dust collection while accommodating wear through deformation rather than permanent damage. The bracket support system reinforces the blade structure, extending its service life despite continuous ground contact.
Solution Approach 2:
The patent utilizes materials with specific elastic properties that change their physical state under stress. The blade material is selected to have appropriate yield strength and elasticity, allowing it to deform elastically during operation and recover, thereby resisting wear and extending lifespan while maintaining continuous ground contact for effective cleaning.
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 design reduces wobbling and driving resistance, improves cleaning efficiency by ensuring the dust collecting blade remains closely attached to the ground, and maintains effectiveness even with wear, thus enhancing the robot's driving and cleaning performance.
Implementation Method 1
utilizing elastic materials to maintain shape and prevent gap formation
Data Source
AI summary
Disclosed is a cleaning robot having an improved driving and cleaning ability. The cleaning robot includes a dust collecting blade. A lower end of the dust collecting blade is bent in a direction opposite to the driving direction of the cleaning robot during operation of the cleaning robot, so that wobbling is not generated even though the ground surface on which the cleaning robot operates has bumps and gaps.