Self-propelled and self-steering floor cleaning device
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Solution Overview
Problem
Conventional floor cleaning devices are inadequate in achieving thorough cleaning of floor surfaces, as they either rely solely on sweeping or wet cleaning methods, failing to effectively remove both loose and embedded dirt particles.
Innovation Solution
A self-propelled and self-steering floor cleaning device equipped with a sweeping roller and a wiping roller, where the sweeping roller is followed by the wiping roller in the direction of movement, allowing for simultaneous sweeping and wet cleaning, with separate dirt containers for each roller to collect dirt efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a floor cleaning device uses only a sweeping roller, then it can remove loose dirt, but it cannot effectively remove embedded dirt particles
Solution Approach 1:
The patent combines a sweeping roller and a wiping roller into a single cleaning device. The sweeping roller removes loose dirt through mechanical sweeping action, while the wiping roller with cleaning liquid removes embedded dirt particles through wet cleaning. Both rollers operate simultaneously on the same floor surface, merging two different cleaning methods into one integrated system to achieve comprehensive cleaning effectiveness.
2Manufacturing precision
If a floor cleaning device uses only a wiping roller, then it can remove embedded dirt, but it cannot effectively remove loose dirt particles
Solution Approach 1:
The patent integrates both sweeping and wet cleaning functions in one device. The sweeping roller handles loose dirt removal through bristle mechanical action, while the wiping roller handles embedded dirt through contact with cleaning liquid. The two rollers work in parallel to provide versatile cleaning capabilities that address different types of soil contamination.
3Productivity
If the cleaning device has separate dirt containers for each roller, then dirt collection efficiency is improved, but device complexity increases
Solution Approach 1:
The patent divides the dirt collection system into separate containers for the sweeping roller and wiping roller. This segmentation allows dirt from each cleaning mechanism to be collected independently, preventing mixing of dry loose dirt and wet embedded dirt. The separate containers improve productivity by enabling efficient dirt removal and container replacement, despite increasing structural complexity.
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
This configuration enables improved cleaning results by first sweeping loose dirt with the brushing roller and then wet cleaning the surface with the wiping roller, ensuring effective removal of both loose and embedded dirt particles, enhancing the overall cleaning efficacy.
Implementation Method 1
a sweeping roller (38) for sweeping the floor surface (12)
Implementation Method 2
a wiping roller (46) for wet cleaning of the floor surface (12)
Data Source
Figure 1
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AI summary
The invention relates to a self-propelled and self-steering floor cleaning device. The floor cleaning device (10) comprises a drive unit (16) for moving on a floor surface (12) which is to be cleaned, a cleaning unit (36) comprising a cleaning roller (46) for wet cleaning the floor surface (12), and a brush roller (38) for brushing the floor surface (12), a cleaning liquid container (56) for a cleaning liquid and at least one dirt reservoir (60; 122, 124) for dirt collected from the floor surface (12), wherein the floor surface (12) can be cleaned in the same step with the brush roller (38) and the cleaning roller (46).