Vacuum Mop Nozzle With Adjustable Cloth Contact for Low Friction
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Solution Overview
Problem
Existing cleaners lack mobility and efficiency in cleaning floors due to inadequate air suction and increased friction between the mop and the floor, which hinders effective dust removal and stain cleaning.
Innovation Solution
A cleaner design featuring a main cleaning unit with a nozzle assembly that includes a suction port and an auxiliary cleaning unit with a cloth supporter, where the contact area between the cloth and the floor is adjustable through a rear wheel mechanism with elastic members, allowing for minimized friction during dust removal and increased contact area for effective stain cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the cloth is continuously attached to the floor during air suction, then cleaning coverage is improved, but friction increases and mobility deteriorates
Solution Approach 1:
The patent implements a dynamic cloth support system where the cloth can be elevated off the floor during air suction operations and lowered for wet cleaning. The support structure includes a movable arm that can pivot between positions, allowing the cloth to be raised when the nozzle is in use and lowered when the mop is in use, thus adapting the contact state based on the current cleaning mode.
2Productivity
If the contact area between cloth and floor is increased for stain cleaning, then cleaning efficiency is improved, but friction increases and mobility decreases
Solution Approach 1:
The patent employs a dynamic adjustment mechanism for the cloth contact area. The support structure allows the cloth to be elevated to reduce contact area during air suction, and lowered to increase contact area during wet cleaning. This dynamic adjustment optimizes both mobility and cleaning efficiency based on the operational phase.
3Productivity
If air suction is used for dust removal, then dust removal efficiency is improved, but friction between mop and floor increases
Solution Approach 1:
The patent separates the air suction function from the mop contact with the floor. The air suction nozzle is positioned independently on an extendable arm, allowing it to be brought close to the floor for effective dust removal while the mop cloth remains elevated on the support structure, minimizing friction and maintaining mobility.
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 contact area enhances the cleaner's mobility and cleaning efficiency by minimizing friction during dust removal and maximizing contact for effective stain cleaning, improving user convenience and cleaning performance.
Implementation Method 1
an elastic member for applying elastic force to the shaft supported by the shaft supporters
Implementation Method 2
a main cleaning unit for generating suction force, a nozzle assembly rotatably connected to the cleaner body and including a suction port for sucking in air and dust
Data Source
Figure 1
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Figure 3
AI summary
A cleaner 1 includes a cleaner body 10 including a main cleaning unit 30 for generating suction force, a nozzle assembly 20 rotatably connected to the cleaner body 10 and including a suction port for sucking in air and dust, and an auxiliary cleaning unit 40 connected to the nozzle assembly 20 and including a cloth supporter 41 to which a cloth 50 is attached. The nozzle assembly 20 includes a front wheel 214 and a rear wheel 23 spaced apart from the front wheel 214, and a shaft 232 of the rear wheel 23 is relatively movably connected to the nozzle assembly 20 to change a contact area between the cloth 50 and a floor F.