Vacuum Cleaner Nozzle Linkage for Surface-Adaptive Suction
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Solution Overview
Problem
Vacuum cleaners face challenges in maintaining uniform suction force across different surfaces, such as hard floors and carpets, due to fixed positioning of cleaning members, which affects the effectiveness of dust and foreign matter suction.
Innovation Solution
A suction nozzle with a suction nozzle body featuring a suction portion, suction channel, communication hole, interlocking lever, and cleaning member that adjusts position based on pressure changes and surface type, allowing for automatic adjustment of the cleaning member's position to optimize suction force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cleaning member is fixed to the suction nozzle, then the structure is simple, but the distance between the cleaning member and the surface is uniform which reduces cleaning effectiveness on different surface types
Solution Approach 1:
The cleaning member is made movable relative to the suction nozzle through a link mechanism that allows automatic adjustment of the cleaning member's position based on the surface type being cleaned, transitioning from a fixed static structure to a dynamic adaptive one
Solution Approach 2:
The system uses the existing suction force and pressure differential to automatically adjust the cleaning member's position without requiring external power or manual intervention, making the adjustment mechanism self-powered
2Adaptability or versatility
If the cleaning member position is changed by user manipulation, then adaptability to different surfaces is improved, but ease of operation deteriorates due to manual adjustment requirements
Solution Approach 1:
The cleaning member position adjustment is automated through a mechanism that responds automatically to the suction pressure conditions, eliminating the need for manual user intervention while adapting to different surface types
Solution Approach 2:
The system uses the suction force and pressure differential as feedback signals to automatically control the cleaning member's position, creating a closed-loop system that adapts to changing surface conditions
3Productivity
If the cleaning member contacts the surface uniformly, then the structure is simple, but suction force uniformity deteriorates on different surface types reducing cleaning effectiveness
Solution Approach 1:
The cleaning member is connected through a link mechanism that allows dynamic position adjustment based on the surface type, enabling the system to optimize the cleaning member-to-surface distance for maximum cleaning efficiency on different surfaces
Solution Approach 2:
The system changes the positional parameter of the cleaning member automatically based on the surface type being cleaned, adjusting the distance and contact pressure to optimize cleaning performance for each surface condition
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 more efficient cleaning on various surfaces by automatically adjusting the cleaning member's position, improving user convenience and suction effectiveness regardless of the surface type.
Implementation Method 1
a contact portion selectively moving to cover or uncover the communication hole according to change of pressure in the suction channel
Data Source
AI summary
The present invention relates to an suction nozzle for a vacuum cleaner and a vacuum cleaner having same, the suction nozzle of a vacuum cleaner of the present invention comprising: an suction main body having an suction portion for air suction formed thereon; an suction flow channel that is attached to the nozzle main body, and into which the air aspirated through the suction portion flows; an interlocking lever that is coupled in such a manner that enables rotation on both sides of the suction flow channel; an adsorption portion that is connected to one end of the interlocking lever, and provided so as to confront an suction hole formed on the suction flow channel; and a cleaning member provided on one side of the nozzle main body by coupling to the other end of the interlocking lever, wherein the air flowing through the suction hole rotates the interlocking lever by adsorbing or separating the adsorption portion to/from the suction flow channel, and the cleaning member moves in an up-down direction as the interlocking lever rotates.