Cleaning assembly and cleaning robot

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Solution Overview

Problem

Existing cleaning robots lack adaptability due to their cleaning modules being fixed and unable to lift or lower relative to the main body, limiting their effectiveness in various cleaning scenarios.

Innovation Solution

A cleaning assembly with a motor, transmission mechanism, and cleaning device that allows the cleaning module to be lifted or lowered axially, driven by a gear system, enabling adjustable positioning and improved adaptability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the cleaning module is fixed relative to the main body, then the structure is simple and stable, but the adaptability to various cleaning scenarios is poor

Engineering Contradiction:
ImproveadaptabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cleaning module is made dynamically adjustable relative to the main body through a lifting mechanism. The module can be raised or lowered along the shaft axis to adapt to different cleaning scenarios, transforming a static structure into a dynamic one that responds to varying operational requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cleaning assembly is segmented into separable components: the main body, the shaft, and the cleaning module. This segmentation allows the cleaning module to be independently positioned and adjusted along the shaft, enabling adaptability while maintaining overall structural coherence.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a lifting mechanism is added to allow the cleaning module to move axially, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:
Improveposition adjustabilityVSAvoidmechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lifting mechanism is merged with the existing shaft structure. The cleaning module is configured to slide along the shaft axis, integrating the lifting function into the shaft itself rather than adding a completely separate mechanism, thereby reducing overall complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The shaft serves multiple functions: it provides structural support, transmits rotation from the motor, and enables axial movement of the cleaning module. This multi-functionality reduces the need for additional dedicated components, simplifying the overall mechanism.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Manufacturing precision

If high-precision shaft processing is used to enable axial movement, then the positioning accuracy is improved, but the manufacturing cost and complexity increase

Engineering Contradiction:
Improvepositioning precisionVSAvoidmanufacturing complexity
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The cleaning module is designed to self-align and self-position along the shaft through its own structural features. The module's geometry and the shaft's features work together to guide positioning without requiring ultra-precise machining, allowing standard manufacturing tolerances to achieve adequate positioning accuracy.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Instead of investing in high-precision shaft processing, the design uses simpler, more economical manufacturing methods for the shaft and cleaning module. The positioning is achieved through functional design rather than precision machining, reducing manufacturing costs and complexity.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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

Enhances the cleaning robot's adaptability by allowing the cleaning module to adjust its position relative to the main body, improving its ability to navigate and clean various surfaces effectively without the need for high-precision shaft processing.

Implementation Method 1

the shaft is configured to drive the first gear to move axially relative to the transmission mechanism while the cleaning device is lifted or lowered

Methodology Applied
Scientific EffectGear mechanism: Gear

Data Source

PatentEP4042919B1Cleaning assembly and cleaning robot
Publication Date: 2023.08.09 YUNJING INTELLIGENCE (SHENZHEN) CO LTD
  • EP4042919B1 patent drawingFigure 1
  • EP4042919B1 patent drawingFigure 2~3
  • EP4042919B1 patent drawingFigure 4

AI summary

A cleaning assembly for a cleaning robot is provided. The cleaning assembly includes a motor, a transmission mechanism coupled with the motor, and a cleaning device comprising a shaft having a first gear coupled with the transmission mechanism and a cleaning module mounted to an end of the shaft. The transmission mechanism is configured to drive the shaft to rotate through the first gear. The shaft is configured to move axially. The cleaning module is configured to clean a surface area.