Plug-In Connector Locking Ring for Tool-Free Secure Retention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing connection devices for hose-shaped or tubular lines and nozzles lack a rapid and tool-free securing mechanism for the locking element, which is essential for secure and efficient plugging and unplugging operations.
Innovation Solution
A connection device featuring a ring-shaped securing apparatus that encloses the housing, with an axial recess for engaging a cam on the locking element, allowing for secure attachment and easy rotational movement to facilitate rapid and multiple insertions and withdrawals of the locking element without tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate screw-on cap is used to secure the locking element, then the locking element can be secured against movement, but the securing process requires tools and becomes more complex
Solution Approach 1:
The securing apparatus is merged with the locking element itself, forming an integrated unit where the locking element includes both the locking portion and the securing portion. This eliminates the need for separate screw-on caps and enables tool-free operation while maintaining reliable securing.
Solution Approach 2:
The locking element is designed to be self-securing through its integrated securing portion that engages with the securing apparatus. The element serves its own securing function without requiring external tools or separate components, enabling rapid and simple installation.
2Productivity
If the locking element is pre-installed in the inner groove, then the plugging operation can proceed rapidly, but the locking element is vulnerable to undesired tangential movement and rotation
Solution Approach 1:
The locking element is pre-installed in the inner groove in a ready-to-use state, but the securing apparatus remains in a non-interfering position that allows free insertion. Once the plug-in portion is in place, the securing apparatus is activated to lock the element, preventing any subsequent tangential movement or rotation.
Solution Approach 2:
The securing apparatus transitions from a non-restrictive state during insertion to a locked state after insertion. The cam mechanism allows the securing portion to move freely during plugging, then engages with the axial recess to prevent displacement, providing dynamic adaptability.
3Ease of operation
If a cam mechanism with axial recess is used for securing, then rapid and tool-free operation is enabled, but the device structure becomes more complex
Solution Approach 1:
The cam mechanism is nested within the ring-shaped securing apparatus, with the axial recess integrated into the ring structure. The securing portion of the locking element is nested within the securing apparatus, allowing the cam to engage with the axial recess. This nested arrangement achieves rapid tool-free operation while minimizing overall structural complexity.
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 simple, rapid, and secure attachment and detachment of plug-in portions without tools, ensuring secure seating and easy handling, particularly in confined spaces, with the locking element being reusable and rotatable for enhanced usability.
Implementation Method 1
The locking element (9) enables the plugging of a plug-in section (3) into the housing (7) in the preinstalled state with elastic deflection
Implementation Method 2
which has an axial recess (16) in the plug-in direction (8), which is designed for the engagement of an essentially radially protruding cam (17) arranged on the securing portion (11) of the locking element (9)
Data Source
AI summary
A connection device for at least one plug-in portion including an annular external groove includes a housing, into which at least one plug-in portion can be plugged, and also at least in each case one integral locking element and a securing device. A locking element includes a securing portion and a locking portion which can be preassembled in the housing. In the preassembled state, the locking portion, by elastic deflection, permits a plug-in portion to be plugged into the housing and brings about the locking of the plug-in portion in the housing. By means of the securing device, the securing portion can be secured on an outer side of the housing opening against displacement in a circumferential direction. A securing device is designed as a ring which engages around the housing and is movable on the housing at least axially counter to a resistance and has an axial recess in a plugging-in direction. A cam arranged on the securing portion of the locking element engages in the recess, as a result of which displacement of the locking element in relation to the securing device is prevented.