Dual-Squeegee Sealing Structure for Compact Wall Cleaning
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Solution Overview
Problem
Conventional automatic wall surface cleaning devices have complex driving mechanisms that increase weight and size, complicating control and automation, and making size and weight reduction challenging.
Innovation Solution
A squeegee device with a main supporting base and a pair of elastic squeegees symmetrically arranged across the cleaning surface, where the squeegees form a closed space and are angled to contact hermetically, simplifying the driving mechanism by integrating sprinkling and collection functions within the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple driving mechanisms are included for wiping and receiving squeegees, then cleaning functions are improved, but weight increases
Solution Approach 1:
The patent combines the wiping squeegee and receiving squeegee into a single integrated unit where both functions are performed by one squeegee structure. The squeegee has a body with a wiping surface on the rear side and a receiving surface on the front side, eliminating the need for separate driving mechanisms for each squeegee while maintaining both cleaning functions.
Solution Approach 2:
The single squeegee is designed to perform multiple functions: it can wipe the wall surface when moving in the cleaning direction and collect contaminated water when moving in the reverse direction. This multi-functional design replaces what would traditionally require separate specialized squeegees with independent driving mechanisms.
2Adaptability or versatility
If multiple driving mechanisms are included for wiping and receiving squeegees, then cleaning functions are improved, but device size increases
Solution Approach 1:
The patent combines the wiping squeegee and receiving squeegee into a single integrated unit where both functions are performed by one squeegee structure. The squeegee has a body with a wiping surface on the rear side and a receiving surface on the front side, eliminating the need for separate driving mechanisms for each squeegee while maintaining both cleaning functions.
3Extent of automation
If multiple driving mechanisms are included for wiping and receiving squeegees, then cleaning automation is improved, but control complexity increases
Solution Approach 1:
The patent combines the wiping squeegee and receiving squeegee into a single integrated unit where both functions are performed by one squeegee structure. The squeegee has a body with a wiping surface on the rear side and a receiving surface on the front side, eliminating the need for separate driving mechanisms for each squeegee while maintaining both cleaning functions.
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
This design reduces the size and weight of the device while simplifying the driving mechanism, enabling efficient cleaning with reduced complexity and improved cleanliness by integrating sprinkling, wiping, and collection functions.
Implementation Method 1
a pair of squeegees formed of elastic bodies having a same shape symmetrically arranged across a center face of the opening on both sides of the opening in the main supporting base
Data Source
AI summary
A squeegee device (10) for cleaning includes a main supporting base (20) in which an opening (24) is formed along a cleaning width direction of a cleaning surface (W), and a pair of squeegees (30) and (40) arranged to extend along the cleaning width direction along the periphery of the opening (24) and formed of an elastic body. Tips of the pair of squeegees (30, 40) are arranged at an angle relative to each other and contact each other in an airtight state, and pressing the tips against the cleaning surface (W) can open a gap between the tips.