Auto-Orienting Scraper Mechanism for Wet-Free Floor Turns
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Floor washing-drying machines struggle to effectively scrub surfaces during straight-line travel and tight turns, particularly in reverse movements, often leaving wet areas due to inadequate coverage by the scraping blades.
Innovation Solution
A floor washing-drying machine with a scraping device that automatically orients itself using a slidable and friction-engaging mechanism, allowing it to wipe all surfaces treated by the brushes during forward and reverse movements without leaving wet areas, by positioning the scraping device either behind or in front of the rotating brushes based on the machine's direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the scraping blades extend farther than the brushes to cover more surface area, then the coverage during turns is improved, but the device becomes cumbersome and extends outward considerably from the machine body
Solution Approach 1:
The scraping device is made dynamically adjustable in its orientation relative to the brush axis. A rotation mechanism allows the scraping device to pivot around the brush axis, enabling it to change its angular position dynamically. This dynamic adjustment allows the same compact scraping device to cover different surface areas depending on the machine's operating state, eliminating the need for oversized fixed blades.
2Area of stationary object
If the machine is equipped with powerful suction means to handle larger surface area, then the wiping coverage is improved, but the machine body becomes cluttered and energy consumption increases
Solution Approach 1:
The scraping device's orientation is dynamically adjusted based on the machine's movement state. During straight-line travel, the scraping device is positioned optimally for compact coverage. During turns or reverse movements, the rotation mechanism repositions the scraping device to maximize surface coverage without requiring increased suction power, thus avoiding energy consumption increases and machine body clutter.
3Device complexity
If the scraping blades are positioned in a straight or curved manner perpendicular to the forward direction, then the structure is simple, but the blades cannot completely cover the surface during tight turns or reverse movement
Solution Approach 1:
Instead of using complex curved blades or multiple blade assemblies, the invention employs a simple compact scraping device that rotates around the brush axis. This dynamic repositioning capability allows the simple structure to achieve complete surface coverage during tight turns and reverse movements by adjusting its angular position, maintaining structural simplicity while ensuring wiping reliability.
Solution Approach 2:
The scraping device automatically adjusts its orientation based on the machine's movement state through the rotation mechanism. The system self-regulates to position the scraping device optimally during different operations (straight travel, turns, reverse movement) without requiring external control or complex mechanical linkages, thereby maintaining structural simplicity while ensuring complete coverage.
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 machine ensures complete surface coverage during all movements, eliminating the need for oversized scraping devices or powerful suction, and allows efficient operation in tight spaces without additional cumbersome mechanisms, effectively wiping all treated areas without leaving any wet portions.
Implementation Method 1
a scraping device (16) which is slidable and friction-engaging with respect to the floor, in a direction substantially perpendicular to the forward direction of the machine
Data Source
AI summary
A floor washing-drying machine including a scraping device that is capable of automatic orientation. The scraping device follows changes of direction of the machine by a simple and effective orienting mechanism so as to wipe all the surface washed by a washing mechanism, without leaving any wet portions on the surface. An idle mode mechanism is achieved by a bushing to which the scraping device is connected. The bushing is mounted in an idle and axially slidable mode on the brush rotation shaft.