Vacuum cleaner filter bag device
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Solution Overview
Problem
Existing vacuum cleaner filter bag devices face challenges in achieving high functionality and easy handling during installation and removal, with existing designs often resulting in dust leakage and complex connection mechanisms.
Innovation Solution
A filter bag device comprising a filter material bag with a bag neck and bag belly configuration, where the bag neck has a smaller circumference than the bag belly, and an adapter system with separate or combined bag-side and device-side adapters that form a dust-tight connection, allowing for convenient handling and easy installation/removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter material bag is fixed on the device connection piece via a fastening ring, then the connection is secure, but the handling during installation and removal becomes complex
Solution Approach 1:
The adapter device is divided into separate components: a bag-side adapter that connects to the filter material bag and a device-side adapter that connects to the vacuum cleaner. This segmentation allows the bag to be easily attached and detached from the bag-side adapter while the device-side adapter remains fixed, simplifying installation and removal operations while maintaining secure connection through the two-part adapter system.
2Adaptability or versatility
If separate bag-side and device-side adapters are used, then the connection mechanism is flexible, but the device complexity increases
Solution Approach 1:
The bag-side adapter and device-side adapter are designed to connect to each other, merging their functions into a unified adapter device. The bag-side adapter includes a connection element that engages with the device-side adapter, creating an integrated system that provides connection flexibility while reducing overall complexity compared to completely separate components.
3Ease of manufacture
If the filter material bag has a cylindrical connection section, then the manufacturing is simple, but the dust-tight connection is difficult to achieve
Solution Approach 1:
The adapter device incorporates sealing elements at specific locations where connections are made. The bag-side adapter and device-side adapter include sealing surfaces and sealing elements that create dust-tight seals at the connection interfaces, while the rest of the bag maintains its simple cylindrical shape for easy manufacturing.
Data Source
Figure 1.1~1.2
Figure 1.3
Figure 2.1
AI summary
A filter bag assembly (1) for a vacuum cleaner is described. It is essential that: - the filter material bag (2) is designed as a flat bag, the first end edge of which, extending transversely to its longitudinal extent, is formed by the end of the bag neck (2bh) having the bag inlet opening (2e), and the second end edge of which, extending transversely to its longitudinal extent, is formed by the bottom end of the bag body (2bb); - the filter material bag (2) is designed with two completely eversible side pleats (2sf), which, in the operating position with the side pleats everted, each with two everted corners, are designed such that the bag neck (2bh) is formed by a cylindrical section and a transition section to the bag body (2bb) as a substantially conically diverging section;- that the filter material bag (2) is designed with inverted side folds (2sf) such that the inverted two side folds (2sf) each extend beyond the longitudinal extent of the bag belly (2bb) into the transition section of the bag neck (2bh), such that the filter material bag (2) with inverted side folds (2sf) is conically diverging along its longitudinal extent in the direction from the bag neck (2bh) to the bag belly (2bb) up to the bottom end of the bag belly.;