Suction Head Wheel Wetting Arrangement to Prevent Surface Staining
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Solution Overview
Problem
The wheels of suction heads in vacuum cleaners often become polluted during wet cleaning, leading to suboptimal cleaning results as they can leave stains or marks on the surface.
Innovation Solution
A suction head with a wetting arrangement that supplies liquid directly to the wheels, allowing for automatic cleaning without user intervention or external tools, ensuring the wheels remain clean and preventing dirt accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the suction head is used for wet cleaning, then the cleaning capability on the surface is improved, but the wheels become polluted and leave stains on the surface
Solution Approach 1:
The patent applies preliminary action by supplying liquid to the wheels before they come into contact with the surface during wet cleaning. The liquid is delivered through conduits that direct flow onto the wheel treads, pre-wetting them to prevent dirt accumulation and stain formation on the cleaned surface.
Solution Approach 2:
The patent uses liquid as an intermediary substance between the wheels and the surface. This liquid medium prevents direct contact between dirty wheels and the surface being cleaned, thereby eliminating the harmful effect of wheel pollution while maintaining the beneficial cleaning action.
2Object-affected harmful factors
If liquid is supplied to the wheels to prevent pollution, then the cleaning result is maintained, but the device complexity increases due to additional wetting arrangement
Solution Approach 1:
The wetting arrangement is designed with multi-functionality: the same liquid supply system serves both to clean the wheels and to prevent their pollution. The conduits and liquid delivery mechanism perform dual roles, reducing the need for separate systems and thereby minimizing the increase in device complexity.
Solution Approach 2:
The wheels are equipped with self-cleaning capability through the integrated wetting arrangement. The liquid supply system enables the wheels to clean themselves automatically during operation, eliminating the need for external cleaning mechanisms or user intervention, thus keeping the overall device complexity manageable.
3Ease of operation
If automatic liquid supply to wheels is implemented, then user intervention is eliminated, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the liquid supply function with the existing vacuum cleaner fluid system. The wetting arrangement integrates with the main liquid reservoir and pump system, combining multiple functions into a unified structure. This approach reduces manufacturing complexity by avoiding separate independent systems while still achieving automatic wheel cleaning.
Data Source
AI summary
In the context of vacuum cleaning, a suction head is provided, which includes a housing that has a coupling area that enables coupling of the housing to an air suction source of a vacuum cleaner, at least one brush that is rotatably arranged in the housing to interact with a surface to be cleaned, and at least one wheel that is rotatably arranged on the suction head to be in contact with the surface. The suction head is further equipped with a wetting arrangement that enables a direct supply of liquid to the at least one wheel and to thereby achieve the effect that the at least one wheel is kept wet and the cleaning results of the surface to be cleaned are optimized.