Upright cleaner
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Solution Overview
Problem
The existing upright vacuum cleaners with drum brushes face reduced cleaning efficiency due to foreign matter being rotated and tangled by the high-speed drum brush, leading to decreased effectiveness in dust removal.
Innovation Solution
A vacuum cleaner design featuring a rotatable dust removal unit with a lever mechanism that moves between contact and separation positions with the drum brush, utilizing a dusting part with brush bundles to remove hair or dust from the drum brush without interrupting its operation, ensuring continuous cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a drum brush is rotated at high speed to separate foreign matter from the surface, then cleaning efficiency is improved, but foreign matter becomes tangled on the drum brush reducing cleaning efficiency
Solution Approach 1:
The invention extracts the harmful effect of foreign matter tangling by introducing a separate dust removal unit that actively removes dust and hair from the drum brush surface. This unit includes dust removal rollers that contact the drum brush to peel off and remove tangled foreign matter, thereby eliminating the harmful accumulation that reduces cleaning efficiency
Solution Approach 2:
The dust removal unit acts as an intermediary mechanism between the drum brush and the collected dust. It includes dust removal rollers that contact the drum brush surface and a dust removal chamber that collects the removed dust and hair, serving as a mediator to prevent foreign matter from interfering with the drum brush's cleaning function
2Productivity
If a dust removal unit is added to remove dust from the drum brush, then cleaning efficiency is maintained, but device complexity increases
Solution Approach 1:
The invention merges the dust removal function with the existing suction system by integrating the dust removal chamber into the suction body structure. The dust removal rollers are positioned within the suction body, and the removed dust is collected through the existing suction mechanism, combining multiple functions into a unified structure rather than adding completely separate components
Solution Approach 2:
The dust removal unit is designed to perform multiple functions: it removes dust and hair from the drum brush surface, collects the removed foreign matter, and integrates with the existing suction system. The dust removal chamber serves both as a collection point for peeled-off dust and as part of the overall air flow path, providing multi-functionality without proportionally increasing complexity
Data Source
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AI summary
The present invention provides an upright cleaner comprising a case having a suction port (60); a drum brush (50) rotatably provided in the case to sweep and guide foreign matter to the suction port (60); a dust removal unit (20b) provided in the case; and a lever connected to the dust removal unit (20b). The dust removal unit (20b) comprises a bar-type body (201b) and a dusting part (202b) directly extending from the body so that the dust removal unit (20b) is moved rotatably between a first position where the dusting part (202b) contacts the drum brush (50) and a second position where the dusting part (202b) is separated from the drum brush (50). An actuating unit (800) is coupled to the lever to press the lever so that the lever moves the dust removal unit (20b) to the first position or to release the lever so that the lever moves the dust removal unit (20b) to the second position.