Floor Brush Rolling Brush Integration to Reduce Cleaning Blind Areas

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Solution Overview

Problem

Cleaning apparatuses have cleaning blind areas due to the structure of the rolling brush, which prevents effective cleaning along wall edges and corners, and the rolling brush requires separate disassembly for cleaning, leading to incomplete cleaning effects.

Innovation Solution

The floor brush integrates a rolling brush with a cover plate forming an integrated structure, where the rolling brush shaft is coaxially connected to a collar portion, and the cover plate is detachably connected to the body, allowing the brush to extend beyond the cleaning apparatus for improved cleaning and facilitating easy disassembly for cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the rolling brush is positioned within the cleaning apparatus body, then the structure is compact, but cleaning blind areas occur at wall edges and corners

Engineering Contradiction:
Improvecleaning coverage areaVSAvoidbrush structure complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The rolling brush is divided into modular components: the brush body, the cover plate, and the rolling brush assembly. The cover plate can be detached from the body, and the rolling brush can be removed from the cover plate, enabling segmented cleaning of different areas including wall edges and corners while maintaining a relatively compact overall structure when assembled.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The rolling brush is designed to extend beyond the plane of the cleaning apparatus body in multiple directions. The cover plate with rolling brush can protrude from the body to reach wall edges and corners, adding dimensional flexibility to the cleaning coverage without significantly increasing the base footprint of the apparatus.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the rolling brush is fixed in the cleaning apparatus, then the structure is simple, but the rolling brush requires separate disassembly for cleaning

Engineering Contradiction:
Improveease of brush cleaningVSAvoidassembly structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The assembly is segmented into detachable components: the cover plate detaches from the body, and the rolling brush detaches from the cover plate. This segmentation enables easy removal and cleaning of the rolling brush without disassembling the entire apparatus, while the detachable connections use simple structures that do not significantly complicate the overall design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection between components transitions from fixed to dynamic/detachable. The cover plate and rolling brush are designed with detachable connections that allow easy assembly and disassembly for cleaning purposes, while maintaining structural integrity during normal cleaning operations. This dynamic design enables maintenance without permanent structural complexity.

Inventive Principle:
Principle #15Dynamics

3Volume of moving object

If the collar portion is external on the cover plate, then the rolling brush positioning is simple, but external space is occupied reducing cleaning reach

Engineering Contradiction:
Improvecleaning reach spaceVSAvoidpositioning structure complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The collar portion is nested within the cover plate structure rather than being external. Specifically, the collar portion is formed as an internal feature of the cover plate, with the rolling brush shaft passing through it. This nesting eliminates external protrusions that would reduce cleaning reach, while the positioning function is maintained through the internal collar geometry.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP4331463B1Floor brush and cleaning apparatus
Publication Date: 2025.07.02 JIANGSU MIDEA CLEANING APPLIANCES
  • EP4331463B1 patent drawingFigure 1~2
  • EP4331463B1 patent drawingFigure 3~5
  • EP4331463B1 patent drawingFigure 6~7

AI summary

Provided are a floor brush (100) and a cleaning apparatus. The floor brush (100) includes a body (10), a cover plate (11), and a rolling brush (12). The cover plate (11) is connected to the body (10). An end surface of the cover plate (11) is provided with a collar portion (110). The cover plate (11) is connected to the rolling brush (12) to form an integrated structure. The rolling brush (12) has an end surface recessed inwards to form a sleeve portion (120) and another end surface rotatably connected to another end surface of the cover plate (11). The sleeve portion (120) is sleeved on the collar portion (110), and the rolling brush (12) is rotatable relative to the collar portion (110). The collar portion (110) is provided on the one end surface of the cover plate (11), and the one end surface of the rolling brush (12) is recessed inwards to form the sleeve portion (110) sleeved outside the collar portion (110). In this way, a structure on the cover plate (11) for positioning the rolling brush (12) is retracted in the rolling brush (12), which can save an external space of the rolling brush (12) occupied by the structure on the cover plate (11) for positioning the rolling brush (12). Further, a space at an end portion of the rolling brush (12) is vacated, enabling the end portion of the rolling brush (12) to extend to an exterior of the cleaning apparatus to realize cleaning of an original blind area.