Extraction Cleaner Self-Cleaning Pathways to Reduce Residue Buildup
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Solution Overview
Problem
Extraction cleaners face challenges in maintaining the cleanliness of their fluid recovery systems, leading to residue buildup and unpleasant odors in hoses and attachments, which complicates post-use maintenance.
Innovation Solution
Incorporating self-cleaning features such as wand caps, wand receivers, accessory tools, and adapter couplings that divert cleaning fluid into the airflow paths to flush out debris and residue from wands, hoses, and recovery systems, enabling easy cleaning and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional extraction cleaners are used without self-cleaning features, then the device complexity is reduced, but residue buildup and odors occur in hoses and attachments requiring manual maintenance
Solution Approach 1:
The patent merges the cleaning function with the fluid recovery system by integrating self-cleaning pathways into the existing wand receiver and hose structure. Cleaning fluid is routed through the same pathways that carry waste fluid, allowing the system to clean itself without adding separate maintenance mechanisms.
Solution Approach 2:
The system performs self-maintenance by automatically flushing its own fluid pathways. The wand receiver and hoses are designed to be flushed with cleaning fluid that travels through enclosed pathways, removing residue and preventing odors without requiring manual disassembly or cleaning by the user.
2Ease of operation
If self-cleaning features are added to extraction cleaners, then ease of maintenance is improved, but device complexity increases due to additional fluid pathways and connectors
Solution Approach 1:
The fluid delivery system is designed to serve dual purposes: it delivers cleaning fluid to surfaces during normal operation and simultaneously serves as a cleaning pathway for maintaining the system. The same pumps, hoses, and connectors used for cleaning surfaces are reused to flush the internal pathways, eliminating the need for separate maintenance infrastructure.
Solution Approach 2:
The fluid recovery system is segmented into distinct enclosed pathways - one for waste fluid removal and another for cleaning fluid delivery. This segmentation allows independent routing of cleaning fluid through specific segments (hoses, wand receiver) without interfering with the waste recovery function, enabling targeted self-cleaning of problem areas.
3Reliability
If enclosed pathways are formed in wand receiver, then self-cleaning effectiveness is improved, but manufacturing complexity increases
Solution Approach 1:
The cleaning fluid pathway is nested within the existing wand receiver structure. The enclosed pathway for cleaning fluid is integrated into the housing and connector assembly, with the cleaning fluid route embedded within or alongside the waste fluid pathway. This nesting allows the cleaning function to be added without creating a completely separate external structure.
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 self-cleaning features effectively remove debris, residue, and odor-causing bacteria from extraction cleaner components, improving user convenience and maintaining the effectiveness of the cleaning equipment.
Implementation Method 1
a source of suction in fluid communication with the working air conduit to draw the cleaning fluid from the surface to be cleaned and through the nozzle and the working air conduit to the recovery tank
Data Source
AI summary
Self-cleaning features for extraction cleaners and attachments for extraction cleaners, such as accessory tools, wands, and/or hoses, are provided. The self-cleaning features are configured redirect cleaning fluid from a fluid supply system of the extraction cleaner into a working air or fluid recovery path of the extraction cleaner, including, but not limited to into the working air or fluid recovery path of a tool, wand, and/or hose of the extraction cleaner.