Cleaning robot

Solution Overview

Problem

Traditional cleaning robots are ineffective in removing both hydrolysable and non-hydrolysable stains, as they typically only perform steps like spraying water, washing, and reclaiming wastewater, lacking the capability to handle non-hydrolysable stains effectively.

Innovation Solution

A cleaning robot design featuring a series of crawler devices with cleaning agent, water, and water absorbing capabilities, arranged in sequence to perform cleaning agent mopping, absorbing, water wiping, and water absorbing steps, utilizing inverted triangular structures and driving motors to effectively contact and rub the surface, ensuring thorough cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional cleaning robots use only water spraying and washing, then the device complexity is low, but the cleaning effectiveness on non-hydrolysable stains is insufficient

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The cleaning robot divides the cleaning process into four distinct functional modules arranged in sequence: cleaning agent application module, cleaning agent absorption module, water wiping module, and water absorption module. Each module performs a specific function, allowing the system to handle both hydrolysable and non-hydrolysable stains effectively while maintaining manageable complexity through functional segmentation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cleaning robot employs multi-functional crawler devices that can perform multiple operations. The cleaning agent mopping device not only applies cleaning agents but also absorbs wastewater. The water wiping device both applies water and reclaims wastewater. This multi-functionality reduces the need for separate dedicated components, achieving comprehensive cleaning capability without proportionally increasing device complexity.

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

2Reliability

If the cleaning robot uses multiple crawler devices arranged in sequence, then the cleaning capability is improved, but the device complexity increases

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple cleaning functions into integrated crawler devices. Each crawler device merges cleaning agent application, water application, and wastewater absorption capabilities into single units. The cleaning agent mopping device combines cleaning agent dispensing with wastewater reclamation in one integrated structure, reducing the number of separate components needed and managing system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The crawler devices are designed with nested structures where functional components are arranged concentrically or in layered configurations. The cleaning agent container, water container, and absorption mechanisms are nested within the crawler device housing, allowing compact arrangement of multiple functions within each crawling unit, thereby managing spatial complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If the cleaning robot uses cleaning agents and multiple wiping steps, then the cleaning effectiveness on various stains is improved, but the loss of time increases

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The cleaning robot performs cleaning operations continuously as it moves across the floor surface. The four crawler devices operate in sequence without interruption, with each device immediately following the previous one. The cleaning agent is applied, absorbed, water is applied for wiping, and water is absorbed all in one continuous passing motion, eliminating the need for separate cleaning cycles and reducing total cleaning time.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The cleaning agent application occurs before water wiping, preparing the stain for removal. The cleaning agent pre-treats and breaks down stains, making the subsequent water wiping more effective. This preliminary action allows the actual cleaning to be completed more quickly during the water wiping phase, reducing overall cleaning time despite the additional step.

Inventive Principle:
Principle #10Preliminary action

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

The robot can efficiently clean both hydrolysable and non-hydrolysable stains, being practical, easy to operate, and simple to use, with improved intelligence and automation for effective floor maintenance.

Implementation Method 1

a friction between the first clamping shafts and the first crawler drives the first crawler to rotate and squeezes wastewater out of a surface of the first crawler

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

the second crawler device includes a second crawler device for absorbing remained cleaning agent on the to-be-cleaned surface and reclaiming wastewater

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 3

a friction between the third clamping shafts and the third crawler drives the third crawler to rotate and squeezes wastewater out of a surface of the third crawler

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 4

the fourth crawler device includes a fourth crawler device for absorbing remained water on the to-be-cleaned surface and reclaims wastewater

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS10390673B2Cleaning robot
Publication Date: 2019.08.27
  • US10390673B2 patent drawing

AI summary

The present disclosure provides cleaning robot, including a cleaning agent mopping device (1), a cleaning agent absorbing device (2), a water wiping (3) and washing device (4), and a water absorbing device arranged in turn along a moving direction of the cleaning robot. Each time when the cleaning robot of the present disclosure works to clean the to-be-cleaned surface, the cleaning robot can perform the four steps including cleaning agent mopping, cleaning agent absorbing, water wiping and washing, and water absorbing, thus, both hydrolysable and non-hydrolysable stains can be effectively cleaned by the cleaning robot. Thus, the cleaning robot is very practical, easy to operate, and simple to use.