Cleaning Robot Wet Module Positioning for Sweep-Mop Integration
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Solution Overview
Problem
Current cleaning robots are limited by their single-function design, requiring separate devices for sweeping and mopping, which occupy more space and lead to mechanical issues like offset lifting modules during operation, affecting their service life.
Innovation Solution
An automatic cleaning device with a mobile platform equipped with both dry and wet cleaning modules, featuring a reciprocating wet cleaning head driven by a motorized platform and a four-link lifting structure, allowing for simultaneous sweeping and mopping with improved positional accuracy and reduced mechanical offset.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cleaning robot uses separate sweeping and mopping devices, then each device can perform its specific cleaning function, but it occupies double space and affects the arrangement of other components
Solution Approach 1:
The patent combines sweeping and mopping functions into a single integrated cleaning robot body. The dry cleaning module (sweeping) and wet cleaning module (mopping) are merged into one device, eliminating the need for separate sweeping and mopping robots. This reduces the total space occupied while maintaining both cleaning functions.
Solution Approach 2:
The cleaning robot is designed with multi-functionality, capable of performing both dry cleaning (sweeping) and wet cleaning (mopping) operations. The device includes a dry cleaning module with a rolling brush and a wet cleaning module with a mopping mechanism, allowing it to adapt to different cleaning needs within a single universal platform.
2Ease of operation
If the wet cleaning module is lifted or lowered during operation, then cleaning flexibility is improved, but mechanical offset occurs affecting service life
Solution Approach 1:
The patent employs an asymmetric four-link lifting structure where the connection lengths between links are deliberately made unequal. This asymmetric design compensates for mechanical offset that occurs during lifting and lowering operations, ensuring that the wet cleaning module returns to its correct positional relationship with the mobile platform, thereby improving reliability while maintaining operational flexibility.
Data Source
AI summary
An automatic cleaning device is provided, including: a mobile platform configured to automatically move on an operation surface; and a cleaning module arranged on the mobile platform and including a dry cleaning module and a wet cleaning module. The wet cleaning module includes a cleaning head used for cleaning the operation surface, and a driving unit used for driving the cleaning head to make a reciprocating movement along a target surface; the target surface is a part of the operation surface; the mobile platform is provided with a thimble; the wet cleaning module is provided with a slot matched with the thimble to limit the working position of the wet cleaning module.