Floor Cleaning Device Tank Flushing with Nested Two-Part Channel

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Solution Overview

Problem

Existing floor cleaning devices have a complex design for the tank flushing mechanism, which can lead to inefficiencies in rinsing and potentially allow dirt particles to adhere to the container walls, complicating the cleaning process.

Innovation Solution

The design incorporates a flushing channel formed by two channel parts that can be easily joined together, with outlets on one part directing the rinsing liquid to flow through the channel interior, simplifying the structure and improving rinsing efficiency by directing the liquid to adhere to the container walls effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complex tank flushing mechanism is used, then rinsing coverage can be improved, but device complexity increases

Engineering Contradiction:
Improverinsing coverageVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The flushing channel is divided into a first channel part and a second channel part that are attached to each other. The first channel part forms the receiving part while the second channel part forms the insert part with outlets. This segmentation allows for simplified individual components that are easier to manufacture and assemble, while collectively providing effective rinsing coverage of the container interior.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If multiple channel parts are joined together, then device complexity is reduced, but manufacturing precision requirements increase

Engineering Contradiction:
Improvedevice complexityVSAvoidassembly precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The second channel part (insert part) is designed to be received within the first channel part (receiving part), forming a nested structure. The insert part fits into the receiving part to define the channel interior, with outlets positioned to direct flushing liquid onto the container interior. This nesting arrangement simplifies the overall structure while maintaining precise fluid flow control through the joined components.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

This structural simplification enhances the tank flushing capability, allowing for effective removal of dirt particles from the container walls while reducing the likelihood of dirt adherence, thus improving the overall cleaning process.

Implementation Method 1

the outlets are arranged on the second channel part and flow-connected to the channel interior. Rinsing liquid flows through the channel interior from the inlet to the outlets and is discharged there.

Methodology Applied
Scientific EffectFluid flow:

Data Source

PatentEP3911212B1Floor cleaning device
Publication Date: 2023.03.29 ALFRED KARCHER SE & CO KG
  • EP3911212B1 patent drawingFigure 1
  • EP3911212B1 patent drawingFigure 2
  • EP3911212B1 patent drawingFigure 3

AI summary

The invention relates to a floor cleaning device. The floor cleaning device comprises: a liquid container (24) which comprises a container wall (34) and a container interior (36); and a tank-flushing apparatus (48) which comprises an inlet (116) and outlets (100) which are flow-connected to the inlet and through which flushing liquid can be dispensed into the container interior (36). The tank-flushing apparatus (48) comprises a flushing duct (78) which can be loaded via the inlet (116) and comprises a first duct part (80) and a second duct part (82) which is joined to the first duct part, the two duct parts forming between them a duct interior (98) of the flushing duct through which the flushing liquid can flow, and the outlets (100) are situated on the second duct part (82) and are flow-connected to the duct interior (98).