Liftable and rotatable mop structure and cleaning machine
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Solution Overview
Problem
Existing cleaning machines with integral lifting and rotating mop units are heavy, complicating structure, design, production, and manufacturing, and affecting stability due to changes in center of gravity.
Innovation Solution
A liftable and rotatable mop structure with a separate lifting mechanism and a rotatable shaft system, comprising an inner and outer shaft with a limiting structure, allows independent lifting and rotating of the mop unit, reducing the weight of the lifted portion and facilitating easy determination of the center of gravity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the mop units are lifted and lowered integrally with the frame or housing, then the driving mechanisms can be mounted in the frame for driving the mop units to rotate, but the machine becomes heavy and the center of gravity changes easily affecting stable operation
Solution Approach 1:
The mop lifting mechanism is segmented from the main frame structure. Each mop unit has its own independent lifting mechanism that directly lifts the mop without requiring the entire frame or housing to move. This segmentation allows the driving mechanisms to remain mounted in the frame while the mops are lifted separately, resolving the contradiction between structural integration and weight reduction.
2Reliability
If the mop units are lifted and lowered integrally with the frame or housing, then the driving mechanisms are mounted in the frame, but the structure becomes complicated and costly in design, production and manufacturing
Solution Approach 1:
The system is divided into independent functional modules: the frame with mounted driving mechanisms, and separate mop units with individual lifting mechanisms. This modular segmentation simplifies the overall structure while maintaining operational reliability, as each module can be designed, manufactured, and maintained independently.
Solution Approach 2:
The mop lifting function is extracted from the frame structure and assigned to dedicated lifting mechanisms directly associated with each mop unit. This extraction eliminates the need for the frame or housing to serve dual purposes of structural support and mop lifting, thereby simplifying the frame design while ensuring reliable mop operation.
3Ease of operation
If the mop units are lifted and lowered integrally, then the driving mechanisms can be mounted in the frame, but the weight of the lifted portion becomes heavy
Solution Approach 1:
The lifting operation is segmented so that only the necessary mop components are lifted by dedicated lightweight mechanisms, rather than lifting the entire frame or housing. This reduces the weight of the lifted portion while maintaining ease of operation through direct, purpose-built lifting mechanisms for each mop unit.
Data Source
AI summary
A liftable and rotatable mop structure and a cleaning machine are provided. The liftable and rotatable mop structure includes a mop unit which includes a mop, a turntable and a rotatable shaft, wherein the mop is connected with the turntable, and the rotatable shaft is connected with the turntable; the rotatable shaft functions to lift the turntable and drive the turntable to rotate, and includes an inner shaft and an outer shaft surrounding the inner shaft; a limiting structure is arranged between the inner shaft and the outer shaft so that the inner shaft and the outer shaft are movable relative to each other in an axial direction but are limited in a circumferential direction.