Movable Vacuum Head Inlet for Hard and Soft Floor Cleaning
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Solution Overview
Problem
Existing surface cleaning devices lack the ability to easily interchange between hard floor and soft floor cleaning modes, which can lead to inefficient cleaning and potential damage to surfaces.
Innovation Solution
A head for a surface cleaning device featuring a movable inlet extension member and wheels for supporting the inlet extension member, allowing it to adjust between positions for optimal cleaning on both hard and soft surfaces, with a mechanism to pivot and lock the inlet extension member between first and second positions, and incorporating rotatably driven brush bars and trailing brushes for effective agitation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the inlet is fixed for hard floor cleaning, then suction efficiency is improved, but the device cannot be easily adapted for soft floor cleaning
Solution Approach 1:
The inlet extension member is made movable relative to the inlet, allowing it to be positioned in different configurations. This dynamic adjustment enables the device to optimize its inlet position for different floor types - extending forward for hard floors to maintain suction efficiency, and retracting or positioning differently for soft floors to prevent damage while maintaining cleaning effectiveness.
2Object-affected harmful factors
If the inlet extension member is extended for soft floor cleaning, then surface protection is improved, but suction efficiency deteriorates
Solution Approach 1:
The movable inlet extension member allows dynamic repositioning between extended and retracted states. When extended, it protects soft floors by distributing contact pressure; when retracted, it maintains optimal suction efficiency for hard floors. This dynamic adjustment resolves the contradiction between surface protection and suction performance.
3Adaptability or versatility
If the inlet extension member is made movable, then adaptability between floor types is improved, but device complexity increases
Solution Approach 1:
The inlet structure is segmented into a fixed inlet and a movable inlet extension member. This segmentation allows the extension member to be independently positioned, providing adaptability for different floor types while keeping the overall structure relatively simple and manageable.
Solution Approach 2:
The inlet extension member serves multiple functions: it extends the inlet for hard floor cleaning to maintain suction efficiency, and it can be positioned to protect soft floors during cleaning. This multi-functionality reduces the need for separate devices for different floor types, justifying the added complexity through versatility.
Data Source
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. The inlet extension member is movable with respect to the inlet between first and second positions.