Suction Device with Cover-Integrated Channel for Filter Unit Removal
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Solution Overview
Problem
Existing suction devices lack an optimized flow guide and user-friendly design for the liquid filter unit, making them difficult to operate and maintain.
Innovation Solution
The design incorporates an openable and closable cover with a channel device that provides a fluid-tight connection between the liquid filter unit and the suction unit, allowing for easy removal and installation of the liquid filter unit, and features a sealing device for the snorkel to ensure an airtight seal, optimizing flow control and user accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the liquid filter unit is made completely removable for easy maintenance, then ease of operation is improved, but fluid-tight connection reliability deteriorates
Solution Approach 1:
The channel device is integrated into the cover structure, creating a nested configuration where the channel device forms part of the cover assembly. This allows the filter unit to be completely removed when the cover is open, while maintaining fluid-tight connections when closed, as the channel device and cover work together as an integrated unit.
Solution Approach 2:
The channel device acts as an intermediary element between the filter unit and the housing. It provides the fluid connection path while being arranged on the cover, enabling automatic fluid-tight connection when the cover is closed, thus mediating between the removable filter unit and the fixed housing structure.
2Ease of operation
If the cover is designed to pivot open for filter removal, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The cover serves multiple functions: it closes the housing to maintain the suction environment, provides mounting for the channel device, and acts as a pivotable access mechanism for filter removal. This multi-functionality reduces the need for separate components, thereby reducing overall device complexity despite the pivot mechanism.
3Ease of operation
If the channel device is integrated on the cover, then ease of operation is improved, but manufacturing complexity increases
Solution Approach 1:
The channel device is merged with the cover structure, forming an integrated assembly. This combining of components simplifies the overall system by reducing the number of separate parts that need to be assembled, even though it increases the complexity of the cover itself. The merged design ensures automatic fluid-tight connection when the cover is closed.
Data Source
AI summary
The invention proposes a suction apparatus which comprises a suction subassembly (30), a housing (12), in which the suction subassembly (30) is arranged, and a liquid-filter unit (26), which is positioned in a releasable manner on a retaining region (24) on the housing (12), wherein the liquid-filter unit (26) has a suction inlet (78) and a suction outlet (106), wherein an openable and closeable cover (38) is provided and, at least in a closed position, is arranged on the housing (12), wherein, with the cover (12) closed, the liquid-filter unit (26) is positioned between the cover (12) and the retaining region (24), and wherein a channel device (100) is provided, this being arranged on the cover (12) and having an inlet (120) and an outlet (130), wherein, with the cover (12) closed, the inlet (120) of the channel device (100) is in fluidically active connection with the suction outlet (106) of the liquid-filter unit (26) and the outlet (130) of the channel device (100) is in fluidically active connection with the suction subassembly (30).