Cleaning Head Inlet Extension for Hard and Soft Floor Switching
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Solution Overview
Problem
Existing surface cleaning devices lack the ability to readily interchange between hard floor and soft floor cleaning modes, which can lead to inefficiencies and potential damage to surfaces.
Innovation Solution
A head for a surface cleaning device featuring an inlet, an inlet extension member, at least one agitator, and wheels, where the wheels are located between the inlet extension member and the agitator, allowing for adjustable positioning to accommodate different floor types, with a rotatably driven brush bar and trailing brushes for effective cleaning and surface protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the head is configured for soft floor cleaning with brushes in contact with the surface, then cleaning effectiveness on carpets is improved, but the risk of damage to hard floors increases
Solution Approach 1:
The brush bar is made movable relative to the head body through a lifting mechanism, allowing it to dynamically change position between contacting and non-contacting states with the surface. This enables the system to adapt to different floor types (hard vs. soft) by adjusting brush contact, thereby maintaining cleaning effectiveness while preventing surface damage on hard floors.
2Productivity
If the head is configured for hard floor cleaning with inlet extension member close to the surface, then suction efficiency is improved, but the ability to clean soft floors effectively is reduced
Solution Approach 1:
The inlet extension member is made adjustable relative to the head body, allowing its position to be dynamically changed. This enables optimization of suction efficiency on hard floors when close to the surface, while allowing repositioning for effective soft floor cleaning, thereby achieving both high suction efficiency and multi-floor adaptability.
Solution Approach 2:
The inlet system is divided into a main inlet and an adjustable inlet extension member. This segmentation allows independent optimization of each component's position for different cleaning scenarios, enabling the system to achieve both high suction efficiency and adaptability to various floor types.
3Adaptability or versatility
If the inlet extension member is positioned far from the surface, then brush interaction is optimized for soft floors, but suction efficiency on hard floors deteriorates
Solution Approach 1:
The inlet extension member's adjustable positioning mechanism allows dynamic repositioning between far-from-surface and close-to-surface configurations. This enables optimization of brush interaction for soft floor cleaning while maintaining the capability for high suction efficiency on hard floors, resolving the trade-off between adaptability and productivity.
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
Enables efficient cleaning on both hard and soft floors by adjusting the inlet extension member's position to optimize suction and brush interaction, reducing the risk of surface damage and improving cleaning performance.
Implementation Method 1
at least one wheel for supporting the inlet extension member on the surface
Implementation Method 2
at least one agitator
Implementation Method 3
an inlet for receiving dirt-laden fluid from a surface
Data Source
Figure 1
Figure 2~7
Figure 3
AI summary
A head for a surface cleaning device, the head includes: an inlet for receiving dirt-laden fluid from a surface; and an inlet extension member, wherein the inlet extension member is movable with respect to the inlet between first and second positions.