Suction cleaning attachment
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Solution Overview
Problem
Existing suction cleaning attachments for motor vehicles are heavy, difficult to remove from holders, and require high energy to maintain continuous suction air flow, leading to potential damage and increased energy consumption.
Innovation Solution
A suction cleaning attachment with a stop that forms a pressure-tight seal with the holder when not in use, allowing easy removal and reducing energy requirements by up to 20% through a self-contained negative pressure system, featuring a handle section with ergonomic design and a multi-part structure for easy maintenance and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous suction airflow is maintained for all suction cleaning attachments, then the negative pressure of the suction airflow is maintained, but the energy consumption increases significantly
Solution Approach 1:
The patent implements periodic action by switching between operating mode (suction airflow active) and storage mode (suction airflow inactive). The suction cleaner alternates between maintaining negative pressure when attachments are in use and releasing negative pressure when attachments are stored, thereby maintaining reliability only when needed while significantly reducing energy consumption during storage periods
2Reliability
If suction cleaning attachment is held firmly in holder, then secure positioning is achieved, but considerable force is required for removal which can cause damage
Solution Approach 1:
The patent applies segmentation by dividing the connection interface into distinct functional elements: a holding mechanism with friction grip for secure positioning, and a release mechanism triggered by axial displacement. The holder and attachment are segmented into separate components with complementary geometries that enable easy insertion and controlled removal
Solution Approach 2:
The patent implements dynamics by designing a holder-attachment connection that transitions between static (secure holding during operation) and dynamic (easy removal when needed) states. The friction-based holding allows the attachment to be firmly secured during use, while axial force applied by the user dynamically overcomes the friction to enable quick removal without damage
Data Source
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AI summary
The invention relates to a suction cleaning attachment (1) of a cleaning device (2) for use for cleaning the interior of motor vehicles by means of a suction air flow and provided for being inserted into and held in a holder (3) in a state of non-use, having a housing (5), which has an internally situated suction channel (4) for conducting the suction air flow, and having a grip region (6), which is provided on the outer side of the housing (5), wherein the suction channel (4), at the outer end (7) thereof, opens into a suction opening (8). According to the invention, it is provided that, on the outside on the housing (5), between the suction opening (8) and the grip region (6), there is provided a stop (9) in the form of a step, or a stop (9) which projects beyond the grip region (6), for interaction with the outer edge (10) of the holder (3).