Vacuum extraction head with adjustable-height brush
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Solution Overview
Problem
Existing carpeted floor cleaning devices face challenges in maintaining consistent contact and effectiveness on variable-height floors, leading to premature wear and reduced cleaning efficiency due to irregular features.
Innovation Solution
An adjustable-height brush extraction head system that translocates upwardly and downwardly along the cleaning path, allowing consistent bristle tip contact with the floor and reducing wear by moving independently of the extraction head body, ensuring effective agitation and debris removal across varying floor heights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed-height brush is used on variable-height floors, then the extraction head body maintains stable position, but the brush cannot maintain consistent contact with the floor leading to premature wear and reduced cleaning effectiveness
Solution Approach 1:
The brush assembly is made dynamically adjustable in height relative to the extraction head body. The brush can translocate upwardly and downwardly independently to adapt to variable-height floor surfaces, ensuring consistent bristle tip contact while preventing premature wear from excessive friction or loss of contact.
2Device complexity
If the brush is fixed to the extraction head body, then the structure is simple, but the brush wears prematurely when moving over irregular floor features
Solution Approach 1:
The brush assembly is segmented from the extraction head body, allowing independent movement. The brush can translocate relative to the head body along the cleaning path, enabling it to navigate irregular floor features without transferring excessive stress to either component, thereby reducing premature wear.
3Productivity
If the brush height is fixed, then the extraction head structure is straightforward, but cleaning effectiveness is reduced on variable-height floors as bristle stems rather than tips contact the floor
Solution Approach 1:
The brush positioning mechanism allows the brush to dynamically adjust its height so that bristle tips maintain contact with variable-height floor surfaces. This dynamic adjustment ensures effective agitation and debris removal while accommodating floor irregularities without requiring complex active control systems.
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 adjustable-height brush system enhances cleaning consistency and efficacy by maintaining bristle tip contact with the floor, reducing premature wear, and improving debris removal on variable-height surfaces, particularly beneficial for motorized cleaning devices.
Implementation Method 1
vacuum outlet in fluid communication with the extraction aperture
Data Source
AI summary
An extraction head for a cleaning machine is disclosed for traveling along a cleaning path on a variable-height floor. The extraction head comprises a body including a floor-facing surface and an extraction aperture disposed in the floor-facing surface. The extraction head comprises a vacuum outlet in fluid communication with the extraction aperture. The extraction head comprises an adjustable-height brush positioned in front of the extraction head body along the cleaning path. The adjustable-height brush is configured to translocate upwardly and downwardly as the extraction head moves along the cleaning path on the variable-height floor. The adjustable-height brush may comprise a proximal end and a distal end opposite the proximal end. The proximal and distal ends may be configured to translocate upwardly and downwardly relative to each other as the extraction head moves along the cleaning path on the variable-height floor.