Coupling system for a suction device with guiding contours

The coupling system employs asymmetric guide contours on the coupling elements that prevent rotational movement and relative displacement. The guide contours are designed with specific geometric features that allow insertion in only one orientation, thereby eliminating rotation and ensuring stable electrical and mechanical connections between suction device components.

The patent introduces guide contours as an intermediary mechanical feature between coupling elements. These guide contours act as a mediator that guides the insertion process, prevents misalignment, and maintains stable connection during operation, thereby improving both connection stability and ease of operation.

The coupling system nests the protruding nozzle of one coupling element into the receiving area of another coupling element. This nesting arrangement allows the nozzle to extend along the longitudinal axis for adequate suction air flow channel length while being mechanically supported and secured within the receiving area, thereby maintaining both extended length and mechanical connection strength.

The patent resolves the length-strength contradiction by transitioning to another dimension - the radial dimension. The guide contours provide radial support and constraint to the extended nozzle, preventing lateral displacement and rotation. This multi-dimensional approach allows the nozzle to extend axially for functional requirements while radial guidance maintains mechanical strength.

The coupling system integrates multiple functions into a single unified structure. The guide contours serve dual purposes: providing mechanical guidance and prevention of rotation, while also serving as structural support for the plug-in units arranged along the transverse axis. This multi-functionality reduces overall device complexity despite enabling electrical and data transmission capabilities.

The patent merges the mechanical coupling function with the electrical connection function in a single integrated assembly. The plug-in units are combined with the guide contours and coupling elements, allowing simultaneous mechanical alignment and electrical connection. This merging approach enables adaptability for electrical and data transmission while minimizing the increase in device complexity through integrated design.