Liquid container and autonomous cleaning robot

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Autonomous cleaning robots face challenges in efficiently installing and removing the water tank, which often requires the robot to be turned upside down, leading to inconvenience and potential water leakage issues.

Innovation Solution

A liquid container with a guide portion and a mounting system that includes a guiding strip and mounting groove, along with an auxiliary fixing structure like adhesive, ensures proper alignment and secure attachment of the cleaning cloth, allowing for horizontal loading and unloading of the liquid container, eliminating the need to invert the robot.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the water tank is connected to the robot at the bottom, then the water source is provided for mopping, but the robot bottom always needs to be turned upside down to install or disassemble the water tank

Engineering Contradiction:
Improveinstallation convenienceVSAvoidmounting operation complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent inverts the traditional bottom-mounted water tank design by providing a front-mounted water tank connection. The cleaning subassembly is detachably mounted to the main body from the front direction, allowing users to install or remove the water tank without turning the robot upside down, thereby simplifying the operation process.

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If the cleaning cloth is mounted on the container case, then the cleaning function is provided, but misalignment and leakage issues occur during operation

Engineering Contradiction:
Improvecleaning cloth fixation reliabilityVSAvoidcleaning cloth installation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent incorporates guide portions (first guide portion on cleaning cloth, second guide portion on container case) that define the installation direction beforehand. These guide portions cooperate to automatically align the cleaning cloth with the container case during installation, ensuring proper positioning before the cleaning cloth is fully attached, thereby preventing misalignment and leakage issues.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the cleaning cloth is removable and mounted on the container case, then the cleaning assembly can be detached, but the cleaning cloth may move or misalign during operation

Engineering Contradiction:
Improvecleaning assembly detachabilityVSAvoidcleaning cloth position stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent employs asymmetric guide portions with specific geometric features (guiding groove and guiding rod, or mounting groove and guiding strip) that create a unique fit between the cleaning cloth and container case. This asymmetric design ensures the cleaning cloth can only be installed in the correct orientation and position, preventing movement or misalignment during operation while maintaining detachability.

Inventive Principle:
Principle #4Asymmetry

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

Facilitates easy and secure installation of the liquid container, preventing misalignment and leakage, while enhancing the cleaning efficiency and safety by ensuring the cleaning cloth is properly fixed and aligned.

Implementation Method 1

The guiding rod is configured to insert into the guiding groove and restrict the movement of the cleaning cloth relative to the container case

Methodology Applied
Scientific EffectMechanical constraint: Mechanical Force

Implementation Method 2

The guiding strip is configured to insert and fix in the mounting groove, to limit the movement of the cleaning cloth relative to the container case

Methodology Applied
Scientific EffectMechanical constraint: Mechanical Force

Implementation Method 3

The auxiliary fixing structure may include an adhesive structure

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentEP3942990B1Liquid container and autonomous cleaning robot
Publication Date: 2024.08.14 SHENZHEN ROCK TIMES TECH CO LTD
  • EP3942990B1 patent drawingFigure 1
  • EP3942990B1 patent drawingFigure 2
  • EP3942990B1 patent drawingFigure 3~4

AI summary

The present disclosure relates to a liquid container and an autonomous cleaning robot. The liquid container may include a container case and a cleaning cloth that is removable and mounted on the container case. The cleaning cloth may include a first guide portion disposed thereon. The container case may include a second guide portion. The first guide portion and the second guide portion cooperate with each other to define an installation direction of the cleaning cloth. The cleaning cloth can be installed correctly by defining the installation direction of the first guide portion and the second guide portion.