Vacuum Cleaner Nozzle with Rotating Mop and Water Path Isolation
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Solution Overview
Problem
Existing vacuum cleaners face issues with water flowing into the suction path, leakage between the rotation plate and mop, and increased height due to central motor placement, leading to reduced cleanability and user inconvenience.
Innovation Solution
A nozzle design with a water tank, independently rotating cleaning units, and a water discharge system that prevents water from flowing into the suction path, includes a water discharge port positioned to minimize water leakage and a compact structure that reduces the nozzle's height, allowing for effective cleaning with reduced interference from the motor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the rotation motor is positioned at the center of the suction port main body to rotate a pair of rotors, then the rotors can be driven using one motor, but the suction path length is lengthened and the structure becomes complicated
Solution Approach 1:
The patent divides the cleaning function into separate modules: a suction unit with its own motor and suction path, and a separate rotation cleaning unit with its own motor. This segmentation allows each unit to have optimized, shorter paths without interference from the other motor's positioning requirements.
Solution Approach 2:
The rotation motor is extracted from the suction port main body and placed in a separate rotation cleaning unit. This extraction eliminates the need for the motor to be centrally positioned in the suction path, thereby shortening the suction path length and simplifying the overall structure.
2Device complexity
If the rotation motor is positioned at the central portion of the suction port main body, then the rotors can be driven, but the height of the suction port main body is increased
Solution Approach 1:
The cleaning device is segmented into a suction unit and a rotation cleaning unit that can be detached. This allows the suction port main body to be compact and low-profile for entering narrow spaces, while the rotation cleaning unit with its motor is separated and can be attached when needed.
Solution Approach 2:
The rotation cleaning unit is designed to be rotatably attached to the suction unit, allowing dynamic reconfiguration. The unit can be rotated into position for cleaning operations and stored in a compact position when not in use, maintaining a low profile height.
3Adaptability or versatility
If water is supplied to the mop through a water discharge port, then the mop can perform wet cleaning, but water may flow into the suction path causing interference
Solution Approach 1:
The water discharge port is positioned at the bottom of the rotation cleaning unit, separate from the suction path. Water is discharged downward onto the floor rather than into the suction port, eliminating interference between wet cleaning and suction operations.
Solution Approach 2:
The rotation cleaning unit acts as an intermediary structure that separates the water discharge function from the suction function. Water is discharged through this intermediate unit onto the floor surface, preventing direct contact with the suction path while enabling wet cleaning capability.
Data Source
AI summary
A nozzle for a cleaner includes a nozzle main body, a rotation cleaning unit rotatably connected to the nozzle main body, the rotation cleaning unit including a rotation plate provided with a mop, and a water supply flow path configured to supply water from a water tank to the rotation cleaning unit, the water supply flow path having an outlet. The rotation plates includes a central shaft, at least one water passage hole spaced apart from the central shaft in a radial direction to receive water directly from the outlet of the water supply flow path, and a water blocking rib located outside of the water passage hole in the radial direction.