Bidirectional-spin cleaning structure
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Solution Overview
Problem
Conventional automatic mops with a unidirectional spinning mop head have unsatisfactory cleaning effects on stubborn stains and require significant user effort due to displacement tendencies during operation.
Innovation Solution
A bidirectional-spin cleaning structure featuring an inner-race and outer-race cleaning disc that spin synchronously in opposite directions, actuated by a power mechanism, enhancing cleaning effectiveness and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a unidirectional spinning mop head is used, then the structure is simple, but the cleaning effect on stubborn stains is unsatisfactory
Solution Approach 1:
The cleaning head is segmented into two separate cleaning discs (inner and outer races) that can spin independently in opposite directions. This segmentation allows each disc to contribute to cleaning effectiveness while maintaining manageable structural complexity through modular design
Solution Approach 2:
Instead of a single unidirectional spinning mop head, the invention uses bidirectional spinning where the inner and outer cleaning discs rotate in opposite directions. This inversion of the traditional single-direction approach enhances cleaning effectiveness on stubborn stains by creating complementary cleaning patterns
2Device complexity
If a unidirectional spinning mop head is used, then the device complexity is low, but the cleaning effectiveness is insufficient
Solution Approach 1:
The cleaning system transitions from static unidirectional rotation to dynamic bidirectional rotation. The power mechanism dynamically controls both cleaning discs to spin in opposite directions, adapting the cleaning action to better handle various stain types and surfaces while maintaining reasonable device complexity
Solution Approach 2:
The invention merges two cleaning discs into a single integrated cleaning head assembly. Both discs work simultaneously in opposite directions, combining their cleaning actions to achieve superior effectiveness while sharing common support structures and drive mechanisms
3Device complexity
If a single cleaning disc spins in one direction, then the structure is simple, but displacement tendency causes instability during operation
Solution Approach 1:
The bidirectional spinning system acts as a counterbalancing mechanism where the inner and outer cleaning discs rotate in opposite directions. This creates opposing centrifugal forces and displacement tendencies that cancel each other out, significantly reducing net displacement and improving operational stability without requiring additional counterweight components
Solution Approach 2:
The system uses asymmetric rotation directions for the two cleaning discs while maintaining symmetric structural support. This asymmetric operational mode generates balanced forces that reduce displacement tendency, improving stability while keeping the overall structure relatively simple and symmetric
4Device complexity
If a unidirectional spinning mop head is used, then the mechanism is simple, but uniform cleaning without circular traces cannot be achieved
Solution Approach 1:
The invention inverts the traditional single-direction cleaning pattern by implementing bidirectional spinning. The inner and outer cleaning discs rotate in opposite directions, creating overlapping cleaning paths that eliminate circular traces and achieve uniform cleaning coverage across the entire cleaning surface
Solution Approach 2:
The cleaning action transitions from a single-dimensional rotational pattern to a two-dimensional bidirectional pattern. By adding the dimension of opposite-direction rotation, the system creates more comprehensive coverage and eliminates the circular trace pattern characteristic of unidirectional spinning, achieving superior cleaning uniformity
Data Source
AI summary
Disclosed is a bidirectional-spin cleaning structure which relates to cleaning equipment, including an inner-race cleaning disc and an outer-race cleaning disc, the inner-race cleaning disc is surrounded by the outer-race cleaning disc, an inner shaft is vertically fixed on the inner-race cleaning disc, an inner-race gear is mounted on the inner shaft, an outer shaft configured like a circular tube and rotatable about a center line of the inner shaft is sleeved outside the inner shaft, the outer shaft is securely attached to the outer-race cleaning disc, and an outer-race gear rotatable together with the outer shaft is mounted on the outer shaft; an autorotation-only transmission gear is engaged on the outer-race gear, a autorotation-only-only idle gear is engaged between the transmission gear and the inner-race gear; the bidirectional-spin cleaning structure further comprises a power mechanism configured to drive the transmission gear to rotate.