Plug Connection Holding Part with Asymmetric Collars
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Solution Overview
Problem
Existing plug-in connections for fluid lines face challenges in simplifying assembly and disassembly, especially in applications with limited space, and often require additional securing elements to prevent loss of the holding part.
Innovation Solution
The design incorporates a holding part with a closed annular contour that is pre-assembled on one coupling part, allowing for axial fixation and radial elastic movement, enabling simple one-handed assembly and reduced radial displacement for disassembly, without the need for additional securing elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the holding part is designed as a separate component requiring additional securing elements, then the locking reliability is improved, but the device complexity and ease of operation deteriorate
Solution Approach 1:
The holding part is integrated directly into the coupling part as a pre-assembled unit, combining the holding function and securing function into a single component. This eliminates the need for separate securing elements while maintaining reliable locking through the cam-like projection mechanism that engages with the receiving structure.
Solution Approach 2:
The holding part incorporates self-securing features through its pre-assembled design with cam-like projections that automatically engage with the receiving structure. The component serves its own securing needs through the elastic actuating areas that provide automatic retention without requiring additional external securing elements.
2Stability of the object's composition
If the holding part requires radial displacement for disassembly, then the locking stability is improved, but the ease of operation in limited space deteriorates
Solution Approach 1:
The holding part is segmented into distinct functional zones including cam-like projections for engagement, elastic actuating areas for controlled movement, and retention features. This segmentation allows localized action where small radial displacements of the elastic areas trigger disengagement while maintaining overall locking stability during normal operation.
Solution Approach 2:
The holding part incorporates elastic actuating areas that provide dynamic response to applied forces. These elastic regions allow controlled radial displacement when force is applied, enabling easy disengagement, while returning to their original position to maintain stable locking during normal use. The dynamic elasticity provides both stability and ease of operation.
3Ease of operation
If the holding part is pre-assembled on the coupling part, then the ease of assembly is improved, but the risk of losing the holding part worsens
Solution Approach 1:
The pre-assembled holding part incorporates self-retention features through cam-like projections and elastic actuating areas that automatically secure the component to the coupling part. The design provides self-service retention where the holding part secures itself through its interaction with the receiving structure, eliminating the need for additional securing elements and preventing loss during assembly and operation.
Solution Approach 2:
The holding function and securing function are merged into a single integrated pre-assembled unit. The cam-like projections and elastic actuating areas combine to provide both the holding action and the self-securing mechanism, ensuring the holding part remains attached to the coupling part without requiring separate retention components.
4Reliability
If additional securing elements are used to prevent loss of the holding part, then the reliability is improved, but the ease of manufacture and device complexity worsen
Solution Approach 1:
The securing function is merged into the holding part itself through the pre-assembled design with cam-like projections and elastic actuating areas. This integration eliminates the need for separate securing elements, simplifying manufacturing by reducing the number of components and assembly steps while maintaining reliable retention of the holding part.
Solution Approach 2:
The holding part provides self-securing through its integrated cam-like projections that engage with the receiving structure. The component secures itself without requiring additional external securing elements, simplifying the manufacturing process and reducing device complexity while maintaining the reliability needed to prevent loss.
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
This configuration simplifies assembly and disassembly while maintaining a low risk of losing the holding part, even in applications with limited space, by using cam-like projections and elastic actuating areas to facilitate easy engagement and release of the coupling parts.
Implementation Method 1
radially elastically movable holding section which, in the assembled state, grips around the holding webs of the two coupling parts in a form-fitting manner
Data Source
AI summary
The invention relates to a plug connection (1) for fluid lines comprising two coupling parts (2, 3) that can be fitted together, wherein, in the plugged-in state, said plug connection can be secured in a releasable manner by means of a locking device (4) which consists of two external, radial flange-like holding webs (21, 31) of the two coupling parts (2, 3) axially (X-X) adjacent to each other in the plug direction (S) in the plugged-in state, and a holding part (5) having a circumferentially closed annular contour, which can be mounted in a pre-assembled state on one of the two coupling parts (3) in an axially and radially fixed manner such that it cannot be lost and in the assembled state reaches axially and radially around the holding webs (21, 31) of the two coupling parts (2, 3) with at least one C-shaped radially elastic movable holding portion (53) in the axial section having two collars (51, 52). To ensure that the holding part (5) cannot be lost and for minimisation of the spatial requirement, particularly for disassembly, according to the invention the collars (51, 52) on the holding part (5) are designed with a different size and/or shape such that, in the event of a radially elastic movement outwards from the assembled state of the holding portion (5), a collar (52) which rests against one holding web (21) of the one coupling part (2) in the assembled state releases this holding web (21) of the coupling part (2) while the other collar (51) still engages, at least in regions, behind the holding web (31) of the other coupling part (3) against which it rests.