Sweeping Machine with Integrated Suction to Reduce Dust Suspension
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Solution Overview
Problem
Existing mini-sweepers are ineffective on indoor environments and allergic settings due to mechanical dust lifting, have low power, and are inefficient on carpets, with high costs and energy consumption.
Innovation Solution
A sweeping machine with contrarotating cleaning rollers and integrated suction means, driven by a single electric motor, utilizing a Poly-V belt transmission and a filtering system for efficient dust and debris collection, capable of operating on both batteries and wired power with adjustable suction control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If mechanical collection is used to remove dust and debris, then the structure is simple and cost-effective, but dust and debris remain suspended in air causing health problems
Solution Approach 1:
The patent combines mechanical collection (brushes/rollers) with suction functionality into a single integrated system. The motor drives both the mechanical agitation components and the suction fan, merging two cleaning mechanisms into one unified device that simultaneously agitates and removes particles, preventing dust suspension while maintaining structural efficiency.
Solution Approach 2:
The patent introduces a suction system using pneumatic principles to create negative pressure that draws dust and debris into a collection container. The fan generates airflow that captures particles mechanically agitated by brushes, transitioning from purely mechanical collection to a pneumatic-assisted system that effectively removes suspended dust.
2Use of energy by moving object
If low power motor (20-50W) is used, then energy consumption is low and cost is reduced, but cleaning efficiency on carpets and bare floors is minimal
Solution Approach 1:
The patent merges mechanical agitation (brushes/rollers) with pneumatic suction to achieve enhanced cleaning efficiency without requiring high power. The combination allows low-power operation because the mechanical components do preliminary particle loosening work, reducing the suction power needed and overall energy consumption while improving productivity.
Solution Approach 2:
The mechanical brushes and rollers perform preliminary agitation and particle loosening before the suction system acts on them. This preliminary action reduces the energy required for the suction phase, allowing effective carpet and floor cleaning with lower overall power consumption.
3Device complexity
If direct current motor with permanent magnets is used, then the motor is simple and low cost, but it lacks overload control and clutch functionality
Solution Approach 1:
The patent implements self-service protection mechanisms where the belt transmission system automatically slips or breaks under overload conditions, providing clutch functionality without additional components. The mechanical belt drive serves dual purposes: power transmission and automatic overload protection, maintaining simplicity while ensuring reliability.
4Device complexity
If flat belt transmission is used, then the structure is simple and acts as clutch, but power transmission efficiency is low and overload control is limited
Solution Approach 1:
The patent combines flat belt and toothed belt features into a hybrid transmission system that maintains the simplicity and clutch functionality of flat belts while incorporating teeth for improved engagement and overload control, achieving both structural simplicity and enhanced power transmission efficiency.
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 machine achieves superior dust removal efficiency comparable to professional carpet cleaners with lower energy consumption and versatility for various cleaning tasks, including carpet cleaning and floor polishing.
Implementation Method 1
an electric motor (18), which serves to drive the two cleaning rollers (16, 17) and the suction fan (38)
Implementation Method 2
means (20) for the suction of air from a region (21) proximate to the cleaning rollers (16, 17)
Implementation Method 3
a filtering system for efficient dust and debris collection
Data Source
AI summary
A sweeping machine for floors and carpets, comprising a body with wheels for gliding and a maneuvering handle, the body supporting at least one cleaning roller that has a horizontal axis and is actuated by an electric motor by virtue of torque transmission elements; there are elements for the suction of air from a region proximate to the at least one cleaning roller, the suction elements being actuated by the same electric motor for driving the at least one cleaning roller.