Portable suction device with replaceable suction nozzle
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Solution Overview
Problem
Existing portable suction devices with exchangeable nozzles lack mobility and ease of replacement, making it difficult to adjust suction pressure and adapt to different cleaning tasks, such as vacuuming liquids and dust, due to rigid attachment methods.
Innovation Solution
A portable suction device design featuring a rotatable suction nozzle with a latching element receptacle and locking pins, allowing for pivoting and rotational movement within a defined angle, enabling easy nozzle replacement and adaptation to various cleaning tasks while maintaining a secure seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the suction nozzle is rigidly inserted in a channel-like slot to be firmly held, then the suction nozzle is securely fixed, but the mobility of the suction nozzle to regulate pressure and the ease of replacement are reduced
Solution Approach 1:
The suction nozzle is designed to be rotatable about at least one axis of rotation within a defined angular range, transforming the rigid fixed connection into a dynamic adjustable connection. This allows the nozzle to pivot for pressure regulation while maintaining secure attachment through the locking mechanism.
Solution Approach 2:
The connection system is divided into separate components: a locking element on the suction nozzle, a locking element receptacle on the housing, and a release mechanism. This segmentation allows the nozzle to be securely held during operation while enabling easy replacement when needed.
2Stability of the object's composition
If the suction nozzle is firmly held in place, then the connection is stable, but the ease of repair and replacement is worsened
Solution Approach 1:
The locking element automatically engages with the locking element receptacle when the suction nozzle is inserted, providing self-locking functionality. The release mechanism allows the user to easily disengage the locking element for replacement, combining stable connection with easy maintenance.
3Adaptability or versatility
If a rotatable suction nozzle with latching element is used, then the adaptability and versatility are improved, but the device complexity increases
Solution Approach 1:
The rotatable suction nozzle with latching element provides multi-functionality by enabling both secure fixation and easy replacement, as well as pressure regulation through rotation. This single mechanism serves multiple functions that would otherwise require separate systems.
4Manufacturing precision
If the suction nozzle is rigidly attached, then the manufacturing precision is maintained, but the ease of operation for pressure regulation is reduced
Solution Approach 1:
The suction nozzle is designed to be rotatable about at least one axis of rotation within a defined angular range, transforming the rigid fixed connection into a dynamic adjustable connection. This allows the nozzle to pivot for pressure regulation while maintaining secure attachment through the locking mechanism.
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
The design allows for optimal adaptation to different cleaning tasks by enabling adjustable suction power and easy nozzle interchangeability, improving the device's versatility and effectiveness in both liquid and dust suction applications.
Implementation Method 1
the plug-in connection being one of at least one locking element which engages in a locking element receptacle when the suction nozzle is inserted
Implementation Method 2
a suction unit (25) for generating a suction flow... able to provide suction vacuum at the suction nozzle
Implementation Method 3
separating means (23) in a separating region (8) of the suction material container (2) for dividing the suction flow into an exhaust air flow flowing out of the suction device and suction material separated from this
Data Source
AI summary
The invention relates to a portable suction device with a replaceable suction nozzle (4) and a housing (1), a suction material container (2) and a suction unit for generating a suction flow. The suction nozzle (4) can be detached with a nozzle connection mouth (11) to form a plug connection in a socket (17) arranged on the housing (1) or on an adapter part (13) arranged on the housing (1) for receiving the front part of the nozzle connection mouth and interchangeably pluggable. The known suction devices have the disadvantage that the plug connection is rigid and offers no additional functionality. This improves the invention in that the plug-in connection is designed in such a way that the suction nozzle (4) is held rotatably about at least one axis of rotation, the plug-in connection being one of at least one locking element that engages in a locking element receptacle (14) when the suction nozzle (4) is inserted (10) is formed and the latching element receptacle (14) and the latching element (10) are designed such that the latched latching element (10) is rotatably held in the latching element receptacle (14).