Self-propelled floor cleaning device
Solution Overview
Problem
Self-propelled floor cleaning devices often get blocked by cables or similar linear and deformable elements, which can lead to damage and incomplete cleaning, and existing solutions like ribs or wires compromise cleaning performance by obstructing the cleaning path and causing hair and fibers to get caught.
Innovation Solution
The use of guide pins spaced apart on the underside of the housing, protruding towards the floor surface, effectively prevents cables and similar objects from being wound up by the rotating cleaning device, ensuring they are guided away from the cleaning path without obstructing the cleaning process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ribs or wires are used to prevent cable winding on the brush roller, then cable entanglement is prevented, but cleaning performance deteriorates due to obstructed cleaning path and hair/fiber entanglement in gaps
Solution Approach 1:
The invention extracts the cable prevention function from the cleaning path area by positioning guide pins on the housing underside away from the brush roller, separating the cable guidance function from the cleaning function to avoid interference with cleaning performance
Solution Approach 2:
Guide pins serve as intermediary elements between the housing and cable, providing a dedicated structure for cable guidance that does not interfere with the brush roller's cleaning action, unlike ribs or wires that are integrated into the cleaning mechanism
2Productivity
If a sweeping threshold is arranged behind the brush roller, then dust and dirt pickup is improved, but the structure complexity increases
Solution Approach 1:
The guide pins serve multiple functions: they guide cables away from the brush roller, prevent cable entanglement, and can work in conjunction with sweeping thresholds to improve dust pickup, providing multi-functionality without significantly increasing complexity
Data Source
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AI summary
The invention relates to a self-propelled floor cleaning device (1) for cleaning floor surfaces (30) with a housing (2) and at least one rotating floor cleaning device (3) on an underside (4) of the housing (2) facing the floor surface (30) in a processing position, wherein at least one guide pin (5) is arranged on the underside (4) of the housing (2) which is spaced apart from the floor cleaning device (3) and projects from the underside (4) of the housing (2) in the direction of the floor surface (30).