Floor maintenance machine with discharge funnel
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Solution Overview
Problem
The central placement of the vacuum source in floor maintenance machines muffles noise but creates issues with liquid discharge from the exhaust outlet, which can lead to liquid accumulation in unintended areas, potentially damaging electronics and complicating malfunction identification.
Innovation Solution
An improved exhaust pathway with a discharge funnel beneath the vacuum source's exhaust outlet directs any liquid or gas mixture externally, using a clean fluid tank's internal volume and a discharge tube to safely evacuate liquids and gases from the machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the vacuum source is placed centrally within the machine body to muffle noise, then noise reduction is improved, but liquid discharge from the exhaust outlet becomes problematic causing liquid accumulation in unintended areas
Solution Approach 1:
The exhaust pathway is extracted and routed separately from the central vacuum source location. The exhaust outlet connects to an exhaust pathway that exits the machine body at a different location, separating the noise-generating vacuum source from the liquid discharge point, thereby allowing both noise muffling and proper liquid discharge
Solution Approach 2:
An exhaust pathway acts as an intermediary between the vacuum source and the external environment. This intermediary pathway includes components like the exhaust outlet and exhaust filter assembly that manage both gas venting and liquid discharge, mediating between the central vacuum source and external discharge points
2Object-affected harmful factors
If the vacuum source is placed centrally within the machine body, then noise is muffled, but identification and resolution of liquid intake malfunctions becomes difficult
Solution Approach 1:
While not directly applying color changes, the principle of visual indication is used through the separate exhaust outlet location and exhaust filter assembly design, which provide visible and accessible indicators of liquid intake malfunctions, making detection easier despite central vacuum source placement
Solution Approach 2:
The exhaust filter assembly and separate exhaust pathway provide feedback mechanisms that allow operators to detect liquid intake issues. The design enables observation of exhaust conditions and liquid discharge patterns, providing feedback about system status and potential malfunctions
3Reliability
If liquid is drawn into the vacuum source from the recovery chamber, then liquid is discharged from the exhaust outlet, but the central placement causes liquid to accumulate in unintended areas and damage electronics
Solution Approach 1:
The exhaust pathway is extracted and routed to exit the machine body at a location separate from the central vacuum source and electronics areas. This extraction ensures that liquid discharged from the exhaust outlet is directed away from sensitive components, preventing damage while maintaining reliable liquid discharge function
Solution Approach 2:
The exhaust system is segmented into distinct components including the exhaust outlet, exhaust filter assembly, and separate discharge pathway. This segmentation allows liquid to be discharged through a dedicated pathway away from electronics, while the vacuum source remains centrally located for noise control
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
Prevents liquid accumulation within the machine, ensures safe discharge of liquids and gases externally, and aids in identifying malfunctions by directing unwanted liquid and gas away from internal components, maintaining efficient operation.
Implementation Method 1
a vacuum source creates a negative pressure in the recovery chamber and this negative pressure is used to draw fluid and some amount of gas from a squeegee or other collection point at the floor up into the recovery chamber
Implementation Method 2
a vacuum source creates a negative pressure in the recovery chamber and this negative pressure is used to draw fluid
Implementation Method 3
an exhaust discharge funnel that is placed beneath the exhaust outlet of the vacuum source in which the exhaust discharge funnel is formed through one of the tanks that forms an internal volume for housing the vacuum source
Implementation Method 4
the liquid, upon expulsion from the exhaust outlet of the vacuum source, is directed into the discharge funnel for transport from the internal volume housing the vacuum source to a location exterior to the floor maintenance machine
Data Source
AI summary
A floor maintenance machine includes a clean fluid tank with a discharge funnel running therethrough that forms part of an exhaust pathway for a vacuum source. The vacuum source discharges an exhaust during operation of the machine from the exhaust outlet into the discharge funnel. The exhaust may be gaseous and/or include a liquid component in the case of a machine malfunction if liquid from a recovery chamber is non-ideally drawn into the vacuum source in the case a fail-safe does not work. The discharge funnel can provide a way for the liquid to exit the interior of the machine in such case.