Extraction cleaner
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Solution Overview
Problem
Existing carpet extractors face issues with nozzle deformation during use, which can lead to inefficiencies in fluid delivery and recovery, and may result in incomplete cleaning and clogging due to the structural design of the nozzle.
Innovation Solution
Incorporation of stiffening elements, such as ribs or tubular braces, across the width of the extraction nozzle to prevent deformation and ensure consistent performance during cleaning operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the extraction nozzle is made lightweight and simple in structure, then ease of manufacture and device complexity are improved, but the nozzle deforms during use due to insufficient structural integrity
Solution Approach 1:
The extraction nozzle is divided into multiple structural segments including a body portion, a distal portion, and multiple transverse ribs positioned between them. This segmentation allows each component to be optimized independently while maintaining overall structural integrity, resolving the contradiction between ease of manufacture and structural stability.
Solution Approach 2:
The nozzle incorporates multiple material properties within a single structure - the body and distal portions use base structural materials, while the transverse ribs provide additional stiffening. This composite approach enables the nozzle to maintain structural integrity without requiring entirely different materials, balancing manufacture ease with deformation resistance.
2Reliability
If the extraction nozzle is designed with adequate structural support, then deformation is prevented and cleaning reliability is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
Rather than uniformly thickening the entire nozzle structure, transverse ribs are strategically positioned at specific locations where deformation is most likely to occur. This local reinforcement approach provides necessary structural support and cleaning reliability while minimizing overall device complexity and manufacturing difficulty.
Solution Approach 2:
The transverse ribs are designed with curved or arcuate profiles rather than straight rigid bars. This curvature provides structural reinforcement against deformation while the streamlined shape reduces turbulence in fluid flow and simplifies manufacturing compared to complex angular structures.
3Ease of manufacture
If the nozzle structure is simplified for easier manufacturing, then production cost and complexity are reduced, but fluid delivery efficiency decreases due to deformation
Solution Approach 1:
The transverse ribs are pre-formed as integral features of the nozzle body during the manufacturing process, rather than being added as separate components. This preliminary action ensures the nozzle maintains its intended shape and fluid delivery efficiency from the start, while the single-piece construction keeps manufacturing simple and cost-effective.
4Stability of the object's composition
If reinforcement elements are added to prevent nozzle deformation, then structural integrity is improved, but manufacturing complexity and production time increase
Solution Approach 1:
The transverse ribs are merged with the nozzle body as a single integrated component formed in one manufacturing process. This merging eliminates the need for separate assembly steps, multi-part fastening, or complex joining operations, thereby maintaining ease of manufacture while providing the necessary structural reinforcement.
Data Source
AI summary
An extraction cleaner for a floor surface includes an extraction nozzle. The extraction nozzle that defines a fluid flow path having an elongated nozzle opening, and includes one or more stiffening elements that stiffens the walls around the nozzle opening to prevent collapsing or deformation of the extraction nozzle during use.