W-Shaped Squeegee Assembly for Low-Suction Liquid Removal
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Solution Overview
Problem
Conventional squeegee assemblies for floor cleaning machines are inefficient in removing liquids due to the need for extensive suction to draw liquid from the outer extents, and the process of replacing squeegee blades is cumbersome.
Innovation Solution
A uniquely shaped squeegee assembly with a frame having suction ports and concave/convex squeegee blades that channel liquid towards the suction ports, along with a fixation device and rollers to orient and secure the blades, enhancing liquid removal efficiency and simplifying blade replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional straight squeegee assemblies are used, then the structure is simple, but liquid removal efficiency is poor because suction must draw liquid from outer extents
Solution Approach 1:
The squeegee blade is designed with a curved profile rather than a straight edge. The blade features a convex upper surface and a concave lower surface that contacts the floor, creating a curved geometry that naturally channels liquid toward the suction port. This curvature eliminates the need for complex mechanical pumping mechanisms while significantly improving liquid removal efficiency.
Solution Approach 2:
The squeegee blade employs asymmetric geometry with different profiles on the upper and lower surfaces. The concave lower surface contacts the floor and guides liquid flow, while the convex upper surface provides structural support. This asymmetric design optimizes liquid channeling toward the suction port without requiring additional complex components.
2Ease of operation
If conventional connectors perpendicular to blade length are used, then the connection is secure, but the blade replacement process is cumbersome
Solution Approach 1:
Instead of using connectors perpendicular to the blade length that require complex assembly and disassembly operations, the invention inverts the connection approach by using a retention clip system that engages with the blade edge. This allows the blade to be quickly released and replaced by simply lifting it away from the squeegee body, dramatically simplifying the replacement process while maintaining secure connection during operation.
Solution Approach 2:
The squeegee assembly is segmented into modular components: the squeegee body, the replaceable blade, and the retention clip system. This segmentation allows the blade to be independently removed and replaced without affecting the rest of the assembly, enabling quick maintenance while ensuring reliable connection through the retention clip mechanism.
Data Source
AI summary
The present invention relates to an improved squeegee assembly. Some embodiments of the present invention are directed to a uniquely shaped squeegee configuration that has been found to remove liquids from a floor in an efficient manner. One particular embodiment utilizes a W-shaped squeegee. Other embodiments are directed to a squeegee fixation device. Yet other embodiments are directed toward a squeegee orientation device. Some embodiments are also directed toward a lifting mechanism and the connection between the squeegee assembly and the lifting mechanism.