Sweeper/scrubber system capable of handling large debris
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Solution Overview
Problem
Current floor cleaning systems require multiple machines and pre-sweeping to handle different floor surfaces and large debris, leading to inefficiencies and equipment clogging.
Innovation Solution
A sweeper/scrubber assembly that can be attached to a floor maintenance machine, featuring motorized brushes for sweeping and scrubbing, a solid debris collection reservoir, and a vacuum squeegee for fluid extraction, allowing for simultaneous sweeping and scrubbing without pre-sweeping and minimizing clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional vacuum-based debris collection system is used, then small debris can be effectively collected, but large debris will clog the vacuum orifices and lines
Solution Approach 1:
The debris collection system is segmented into two distinct pathways: a vacuum pathway for small debris and a gravity-fed pathway for large debris. The sweep collection reservoir separates large debris from the vacuum system, preventing clogging while maintaining effective small debris collection through the vacuum pathway.
Solution Approach 2:
The large debris collection function is extracted from the vacuum system and placed into a separate sweep collection reservoir. This reservoir receives large debris through gravity feed from the brushes, removing the harmful effect of large debris clogging the vacuum orifices and lines while preserving the vacuum system's ability to collect small debris.
2Adaptability or versatility
If multiple separate machines are used for sweeping and scrubbing, then each machine can be optimized for its specific function, but the cleaning process becomes less efficient and requires more equipment
Solution Approach 1:
The sweeper/scrubber assembly merges sweeping and scrubbing functions into a single integrated unit. The assembly includes both motorized cleaning brushes for scrubbing and a sweep collection reservoir for debris collection, allowing simultaneous operation of both functions while maintaining space-efficient design.
Solution Approach 2:
The floor maintenance device achieves multi-functionality by integrating both sweeping and scrubbing capabilities in one assembly. The motorized brushes provide both mechanical scrubbing action and debris generation, while the offset reservoir captures large debris, enabling the single device to replace traditional separate sweeper and scrubber machines.
3Device complexity
If the debris collection reservoir is positioned near the vacuum orifice, then debris can be collected centrally, but the reservoir will be subject to vacuum suction that can cause large debris to plug the system
Solution Approach 1:
The large debris collection reservoir is extracted from the vacuum suction zone and positioned in an offset location. The reservoir receives large debris through gravity feed from the brushes rather than through vacuum suction, eliminating the risk of vacuum-induced clogging while maintaining centralized debris collection capability.
Solution Approach 2:
The offset reservoir acts as an intermediary between the brushes and the vacuum system. It captures large debris through gravity feed before it can enter the vacuum orifices, serving as a protective buffer that prevents clogging of the vacuum lines while allowing the vacuum system to continue operating effectively for small debris collection.
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 efficient and economical cleaning of various floor surfaces by collecting large debris without clogging the system, reducing the need for multiple machines and pre-sweeping, and facilitating easy maintenance of the debris collection reservoir and vacuum squeegee.
Implementation Method 1
a vacuum squeegee positioned against one or more of the multiple cylindrical cleaning brushes to withdraw soiled cleaning liquid from a brush
Implementation Method 2
The rotational movement of the brushes can generate an airflow that throws solid debris onto the floor surface and into the solid debris collection reservoir
Data Source
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AI summary
A sweeper/scrubber assembly may be used to clean a floor surface without dry sweeping or mopping solid debris from the floor surface before conveying the sweeper/scrubber assembly over the floor surface. In some examples, the sweeper/scrubber assembly includes at least two counter-rotating brushes, a cleaning fluid dispensing system, a vacuum squeegee, and a solid debris collection reservoir. The cleaning fluid dispensing system can dispense cleaning fluid on the floor being cleaning and or one or both brushes. The vacuum squeegee can be positioned against a face of one of the brushes and can apply a vacuum suction force to the face of the brush. The solid debris collection reservoir can be a space not exposed to a vacuum force that collects solid debris thrown by the rotating brushes.