Vacuum Cleaner Container Sealing with Pressure-Differential Engagement
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Solution Overview
Problem
Existing vacuum cleaners face challenges in easily detaching and reattaching the suction material container without mechanical stress on the sealing device, which can lead to wear and leakage.
Innovation Solution
A movable sealing device with a pressure-differential mechanism creates a fluid-tight connection between the device body and the suction material container during operation, allowing for easy insertion and removal without mechanical stress, and a guide device ensures proper alignment to prevent snagging and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed sealing device is used to ensure fluid-tight connection, then sealing reliability is improved, but detachment and reattachment of the suction material container becomes difficult and causes mechanical stress on the sealing device
Solution Approach 1:
The sealing device is designed to be movable rather than fixed, allowing it to adapt its position based on operational requirements. During operation, the sealing device moves to engage with the suction material container for fluid-tight connection, and during detachment, it moves away to clear the path, enabling easy container removal without mechanical stress on the seal
Solution Approach 2:
The movable sealing device acts as an intermediary between the housing and the suction material container. It provides the fluid-tight connection when needed but can be moved out of the way when the container needs to be detached, resolving the conflict between maintaining a reliable seal and enabling easy operation
2Reliability
If the sealing device is positioned to ensure fluid-tight connection during operation, then sealing effectiveness is improved, but the suction material container cannot be easily detached due to mechanical stress and snagging
Solution Approach 1:
The sealing device transitions from a static positioned component to a dynamic one that changes position between operational and detachment states. This dynamic positioning eliminates the need for complex detachment mechanisms while maintaining sealing effectiveness during operation
Solution Approach 2:
The sealing function is extracted from the fixed structural components and placed in a movable element that can be independently positioned. This allows the sealing device to be engaged only when needed for operation and retracted when detachment is required, simplifying the overall detachment mechanism
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
The solution enables easy and stress-free detachment and insertion of the suction material container, preventing wear on the sealing device and ensuring a reliable fluid-tight connection during operation, while allowing for optimal space utilization and easy cleaning.
Implementation Method 1
under the influence of a pressure difference generated by a suction flow, the movable sealing device creates a fluid-tight connection
Data Source
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AI summary
A vacuum cleaner is provided, comprising: an appliance body (12); a suction unit (32), for generating a suction flow, which is arranged on the appliance body (12); a first connection (74), which is arranged on the appliance body (12) and is fluidically connected to the suction unit (32); a second connection (76), which is arranged on the appliance body (12) at a distance from the first connection (74) and is fluidically connected to a suction opening (24); a suctioned material container (34), which is fixed detachably to the appliance body (12); and a first suctioned material container connection (92) corresponding to the first connection (74) of the appliance body (12) and a second suctioned material container connection (94) corresponding to the second connection (76) of the appliance body (12), wherein a sealing device (116) is provided, which comprises a first sealing element (118) associated with the first connection (74) of the appliance body (12) and with the first suctioned material container connection (92), and/or a second sealing element (120) associated with the second connection (76) of the appliance body (12) and with the second suctioned material container connection (94). When there is no suction flow, a distance (98) between the first connection (74) and the second connection (76) of the appliance body (12) is greater than a distance (96) between the first suctioned material container connection (92) and the second suctioned material container connection (94) including the sealing device (116). The sealing device (116) is movable, and, when there is an active suction flow, the mobility of the sealing device (116) allows a fluid-tight connection to be established between the first connection (74) of the appliance body (12) and the first suctioned material container connection (92) and/or between the second connection (76) of the appliance body (12) and the second suctioned material container connection (94), as a result of the pressure difference at the sealing device (116).