Recovery Tank Float and Strainer Layout for Balanced Floor Cleaners
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Solution Overview
Problem
Existing floor cleaners lack efficient designs for fluid management and user ergonomics, leading to imbalanced operation and inefficient cleaning processes.
Innovation Solution
A floor cleaner design featuring a vacuum source, supply tank, distribution nozzle, suction inlet, and recovery tank with a movable strainer and shutoff float, along with a balanced component arrangement for optimal user control and fluid handling, including a hydrophobic brushroll and squeegee system for enhanced cleaning performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional floor cleaner design is used, then the structure is simple, but the fluid management is inefficient and user ergonomics are poor
Solution Approach 1:
The cleaner is divided into distinct functional modules: supply tank assembly, recovery tank assembly, brushroll assembly, and handle assembly. Each module can be independently accessed, removed, or maintained, improving fluid management efficiency while keeping the overall structure organized and not excessively complex
Solution Approach 2:
The strainer is nested within the recovery tank, and the shutoff float mechanism is integrated into the tank structure. The brushroll assembly is positioned within the base structure, allowing efficient use of space and improved ergonomics without adding external complexity
2Reliability
If no strainer is provided in the recovery tank, then the structure is simpler, but fluid splashing and debris management are problematic
Solution Approach 1:
A strainer is introduced as an intermediary component between the suction inlet and the recovery tank interior. This strainer filters debris from the cleaning fluid, preventing splashing and improving fluid management reliability without significantly complicating the tank structure
Solution Approach 2:
The strainer is made with a porous or perforated structure that allows fluid to pass through while blocking debris. This provides effective filtration and reliable fluid management while maintaining a relatively simple tank design
3Reliability
If the cleaning fluid level is not monitored, then the structure is simpler, but fluid overflow and vacuum disruption occur
Solution Approach 1:
A shutoff float mechanism provides automatic feedback control for the cleaning fluid level. When the fluid reaches a certain level, the float rises and triggers a shutoff mechanism, preventing overflow and maintaining reliable vacuum operation without requiring complex electronic monitoring systems
Solution Approach 2:
The shutoff float mechanism is a self-regulating system that automatically controls fluid intake based on the current fluid level. The system serves itself by using the buoyancy of the float to trigger the shutoff, eliminating the need for external monitoring or control systems
4Ease of operation
If the cleaner is not balanced, then the component arrangement is simpler, but user ergonomics and control are poor
Solution Approach 1:
The supply tank and recovery tank are positioned asymmetrically within the cleaner structure to achieve proper balance. The handle and control mechanisms are also asymmetrically arranged to provide optimal user ergonomics and control, improving ease of operation without requiring overly complex structural adjustments
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 design provides a well-balanced and ergonomic floor cleaner that efficiently manages cleaning fluids, improves user control, and enhances cleaning performance by preventing fluid splashing and ensuring effective debris collection.
Implementation Method 1
a vacuum source, a supply tank configured to store a cleaning fluid, a distribution nozzle in fluid communication with the supply tank, the distribution nozzle configured to dispense the cleaning fluid onto a surface to be cleaned. The floor cleaner further includes a suction inlet in fluid communication with the vacuum source and a recovery tank in fluid communication with the vacuum source and the suction inlet, the recovery tank configured to store the cleaning fluid drawn through the suction inlet from the surface by the vacuum source
Implementation Method 2
The shutoff float includes a float body and a closure. The float body is configured to float on a surface of the cleaning fluid and the closure is received in the suction air outlet to close the suction air outlet when the surface of the cleaning fluid exceeds a desired level
Implementation Method 3
including a hydrophobic brushroll and squeegee system for enhanced cleaning performance
Data Source
AI summary
A floor cleaner including a recovery tank. The recovery tank includes a tank body having a lower end wall, an open upper end, and a sidewall that extend upwardly from the lower end wall. A cover that includes a suction air outlet in fluid communication with a vacuum source. An inlet duct extends upwardly from the lower end wall. The recover tank includes a shutoff float including a float body and a closure. The float body is configured to float on a surface of cleaning fluid and the closure is received in the suction air outlet to close the suction air outlet. The float body moves along the inlet duct as the float body floats on the surface of the cleaning fluid. The float body includes an aperture extending through the float body and the inlet duct extends through the aperture of the float body.