Vacuum Cleaner Conversion Valve With Deformable Link Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Upright vacuum cleaners lack an efficient mechanism to switch between floor and above-floor cleaning modes without interrupting airflow, and existing solutions do not effectively manage airflow paths to optimize suction and cleaning performance.
Innovation Solution
A vacuum cleaner design featuring a pivotally coupled handle assembly, a valve with a deformable link and lever system that allows for fluid communication control between the suction source and air inlets, enabling seamless mode switching by rotating the valve body between open and closed positions, and a bypass valve for continued airflow when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a valve mechanism is added to switch between floor and above-floor cleaning modes, then cleaning versatility is improved, but device complexity increases
Solution Approach 1:
The patent combines the valve body rotation function and airflow path switching function into a single integrated mechanism. Rotating the valve body simultaneously controls both the directional valve and the airflow path, eliminating the need for separate switching mechanisms and reducing overall device complexity while maintaining cleaning mode versatility.
Solution Approach 2:
The valve body serves multiple functions: it acts as a directional control element, an airflow path switch, and a mode selection mechanism. This single component handles what would traditionally require multiple separate mechanisms, thereby improving adaptability without proportionally increasing device complexity.
2Adaptability or versatility
If manual adjustments are made to switch cleaning modes, then cleaning versatility is improved, but loss of time occurs due to interruption of airflow
Solution Approach 1:
The valve mechanism is designed to switch airflow paths without interrupting the suction source operation. The bypass valve maintains continuous airflow through alternative paths during mode transitions, ensuring the suction source remains active and eliminating time loss associated with stopping and restarting the cleaning process.
Solution Approach 2:
The airflow path is pre-configured with bypass routes that are ready to activate immediately when mode switching occurs. This preliminary arrangement of alternative airflow paths ensures seamless transition between cleaning modes without requiring the suction source to be stopped or restarted.
3Manufacturing precision
If a rigid link is used to connect the valve mechanism, then manufacturing precision is improved, but reliability decreases due to stress concentration when valve reaches endpoint
Solution Approach 1:
The link incorporates a deformable portion that changes its mechanical properties at specific points. This deformable section allows the link to flex and absorb stress when the valve body reaches its endpoint positions, preventing stress concentration and potential failure while maintaining sufficient manufacturing precision for proper valve operation.
Solution Approach 2:
The deformable portion of the link is designed to absorb and dissipate stress before it can concentrate at critical connection points. This cushioning effect occurs automatically when the valve reaches endpoint positions, protecting the mechanism from damage and improving reliability without compromising manufacturing precision.
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
Enables efficient switching between floor and above-floor cleaning modes by ensuring uninterrupted airflow and optimized suction performance, allowing for effective cleaning of both surfaces without manual adjustments that could disrupt airflow.
Implementation Method 1
The link has a deformable portion resiliently deformable to permit additional movement of the link when the valve body is stopped in the closed or open position
Data Source
AI summary
A vacuum cleaner includes a suction source, an air inlet, and an airflow path extending from the air inlet to the suction source. A valve is movable between an open position in which the suction source and the air inlet are in fluid communication and a closed position in which the valve inhibits fluid communication between the air inlet and the suction source. The vacuum cleaner also includes a link coupled to the valve such that movement of the link in a first direction when the valve is in the closed position opens the valve, and movement of the link in a second direction when the valve is in the open position closes the valve. The link has a deformable portion resiliently deformable to permit additional movement of the link in the second direction when the valve is in the closed position.