Spring Ring Bayonet Coupling for Quick Lock Cylinder Assembly
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Solution Overview
Problem
Existing electromechanical locking cylinders require complex and time-consuming assembly and disassembly processes due to their threaded connections, which often involve multiple turns and are prone to accidental disengagement.
Innovation Solution
A bayonet lock mechanism comprising a spring ring, knob flange, and knob sleeve, which allows for a simplified assembly and disassembly process through a bayonet connection, utilizing a spring washer with engagement tabs and undercut sections for secure locking and unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a threaded connection is used for connecting the handle to the cylinder core, then the connection is secure and reliable, but the assembly and disassembly process becomes time-consuming and complex
Solution Approach 1:
The invention divides the connection mechanism into distinct functional elements: a bayonet coupling with rectangular protrusion and corresponding recess, combined with a separate spring ring for securing. This segmentation allows quick bayonet-style engagement for positioning while the spring ring provides reliable securing without requiring threaded assembly
Solution Approach 2:
The spring ring introduces a dynamic element to the connection system. It can be inserted and engaged quickly without threading, and its elastic properties allow it to maintain constant securing pressure. The spring arm with locking lug provides automatic engagement into the locking recess, creating a secure but easily reversible connection
2Reliability
If a threaded connection with anti-twist feature is used, then the connection prevents accidental disengagement, but the assembly process becomes more complex
Solution Approach 1:
The anti-accidental-disengagement function is separated from the connection structure itself. Instead of integrating anti-twist features into the threaded connection, the invention uses a distinct spring ring with spring arms that engage locking lugs into locking recesses in the cylinder core, providing secure positioning without complicating the main bayonet coupling
Solution Approach 2:
The spring ring acts as an intermediary element between the bayonet coupling and the cylinder core. It provides the securing and anti-disengagement function without requiring the handle itself to have complex features, simplifying the overall connection structure while maintaining reliability
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 bayonet lock mechanism facilitates quick and secure attachment and detachment of the knob sleeve, reducing assembly time and preventing accidental release, while maintaining a twist-proof connection.
Implementation Method 1
at least one inwardly projecting, outwardly resilient spring arm is provided in order to realize latching in a corresponding latching receptacle of the knob flange
Data Source
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Figure 9~10
AI summary
The subject matter of the invention relates to a spring ring (10), in particular a spring ring (10) for a bayonet catch (70) of a locking cylinder, in particular an electromechanical locking cylinder, comprising an annular body (11) which has at least one outwardly facing guide tab (12) for engaging in a guide (51) of a corresponding knob sleeve (50), which has at least one inwardly facing engagement tab (13) for a guided arrangement on a knob flange (30), and which has at least one inwardly projecting, outwardly resilient spring arm (14) in order to snap into a corresponding snap-in receptacle of the knob flange (30). The subject matter of the invention further relates to a knob flange (30), a knob sleeve (50), a bayonet catch (70), a locking cylinder, an electromechanical locking cylinder set, and a method therefor.