Suction Nozzle Clamping Lip Structure for Easy Replacement
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Solution Overview
Problem
Existing suction nozzles have a pull-off lip that is either firmly connected or difficult to replace, making it challenging to switch between different lip sizes for varying cleaning applications, such as cleaning windows with narrow muntins or larger areas.
Innovation Solution
Incorporating a pull-off lip receptacle with clamping means that allows for easy replacement of the pull-off lip by applying a clamping force, enabling the lip to be securely fixed and laterally removed, and optionally using adjusting means like screws or springs to facilitate this process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pull-off lip is firmly connected to the housing, then the connection is secure and reliable, but the replacement effort and device complexity increase significantly
Solution Approach 1:
The clamping means is designed to be adjustable rather than fixed, allowing it to dynamically adapt between a secure clamping state for reliable connection and a released state for easy replacement. The adjusting means enables the clamping force to be modified on demand, transforming a static connection into a dynamic one that can switch between reliability and ease of repair modes.
2Productivity
If a larger pull-off lip is used for cleaning larger areas, then the productivity increases, but the adaptability to narrow spaces decreases
Solution Approach 1:
The pull-off lip is designed as a replaceable component that can be segmented into different sizes. Users can swap between a larger pull-off lip for efficient cleaning of large areas and a smaller pull-off lip for navigating narrow spaces between window muntins. This segmentation allows the system to optimize productivity for each specific cleaning scenario without compromise.
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
Enables secure and effortless replacement of the pull-off lip, allowing users to switch between different lip sizes and deactivate unnecessary suction areas, enhancing versatility and maintenance of the suction nozzle.
Implementation Method 1
at least one clamping means (5), which protrudes into the pull-off lip receptacle (6) in such a way that it is able to press the pull-off lip (3) against a wall of the pull-off lip receptacle (6) when a clamping force is applied
Data Source
Figure 1~4
Figure 5~6
AI summary
The invention relates to a suction nozzle for a suction device for sucking up liquid, with a connecting piece (7) for connection to an intake channel of the suction device, a housing shell (1) having a lower longitudinal side and a housing cover (2) fastened thereon, a pull-off lip receptacle ( 6) and with a pull-off lip (3) held therein, which protrudes outwards with a pull-off edge (8), the pull-off lip receptacle (6) being formed by a groove into which an edge of the pull-off lip (3) is inserted. The known suction nozzles have the disadvantage that the pull-off lip is either not held firmly enough or cannot be replaced. This improves the invention in that at least one clamping means (5) is provided, which protrudes into the pull-off lip receptacle (6) in such a way that it is able to detachably fix the pull-off lip (3) in the pull-off lip receptacle (6) when a clamping force is applied.