Plug-in Connector Radial Locking Mechanism
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Solution Overview
Problem
Existing plug-in connectors require precise matching of plug members and counterparts with snap-on elements, leading to difficulties in achieving a secure connection due to the deflection force of snap hooks, which complicates the insertion process and ensures a seal-tight connection.
Innovation Solution
A plug-in connector design featuring an actuating means that deflects the locking element radially from the release to the locking position, eliminating the need for additional force to overcome deflection, allowing for a simple and secure connection between plug members and counterparts without requiring special matching or additional securing means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a snap-on element with snap hook is used for locking, then the plug member and counterpart can be locked relative to one another, but the snap hook deflection force increases the insertion difficulty and prevents sufficient pressing action for seal-tight connection
Solution Approach 1:
Instead of the locking element being deflected during insertion (as in conventional snap-on connections), the invention inverts the sequence by first enabling easy insertion with the locking element in its initial position, then deflecting the locking element radially outward after insertion to engage the threaded section and achieve locking. This inversion eliminates the deflection force barrier during insertion while maintaining secure locking.
Solution Approach 2:
The invention applies preliminary action by allowing the plug member to be inserted into the counterpart in the initial state without engagement resistance, establishing the connection first. Only after successful insertion does the locking element get deflected radially to engage the threaded section, ensuring that the sealing surface is already in contact before locking occurs.
2Reliability
If a lock sleeve with snap hook is used for locking action, then the plug member and counterpart can be locked, but the plug member and counterpart must be precisely matched with special locking elements
Solution Approach 1:
The locking element is designed to interact with a threaded section that can be provided on conventional counterparts (either as outer thread on plug members or inner thread on sockets). This universal threaded interface allows the locking element to function with both custom and conventional counterparts, eliminating the need for specially matched components while maintaining secure locking capability.
Solution Approach 2:
The locking function is segmented into two independent components: the locking element on the plug member and the threaded section on the counterpart. This segmentation allows the threaded section to be integrated into conventional counterparts without modification to the entire connector, while the locking element provides the active locking mechanism. The separation enables versatile compatibility while maintaining reliable locking.
3Reliability
If the locking element is deflected during insertion to achieve locking, then secure connection is achieved, but additional force must be overcome during insertion
Solution Approach 1:
The invention inverts the conventional sequence by allowing insertion to occur first without deflection force resistance, then deflecting the locking element radially outward after insertion is complete. This reversal eliminates the need to overcome deflection force during insertion while still achieving secure locking through the radial deflection that engages the threaded section.
Solution Approach 2:
The insertion action is performed preliminarily in the initial state before any deflection occurs. The plug member is inserted into the counterpart while the locking element remains in its undeflected position, requiring minimal force. Only after successful insertion does the locking element deflect radially to engage the threaded section and provide secure locking.
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 design ensures a secure and easy connection by minimizing insertion forces and preventing accidental release of the locking element, allowing for use with conventional counterparts without the need for special modifications, while maintaining a secure seal.
Implementation Method 1
the locking element has a springy configuration and is in the release position when in the unloaded state
Data Source
AI summary
A plug-in connector has a plug member and a locking device for securing the plug member on a counterpart. The locking device has at least one locking element having a release position and a locking position, wherein in the release position the plug member is removable from the counterpart and wherein in the locking position the plug member and the counterpart are locked relative to one another. An actuating element acting on the locking device is provided for moving the at least one locking element from the release position into the locking position in a radial direction relative to a longitudinal axis of the plug member.