Cylinder Lock With Movable Blocking Section For Secure Removal
Solution Overview
Problem
Existing cylinder locks face challenges in securely mounting the locking cylinder to prevent unauthorized removal while allowing authorized users to easily and quickly replace it, especially in scenarios where access is limited to one side.
Innovation Solution
A cylinder lock design featuring a locking element with a blocking section that secures the cylinder against removal and a coupling section that can be rotationally coupled to the cylinder core using a key or tool, allowing authorized users to move the blocking section into a release position for easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the locking element is designed to securely fix the cylinder in the holder against unauthorized removal, then security is improved, but the ease of removal for authorized users deteriorates
Solution Approach 1:
The locking element is designed with a movable blocking section that can dynamically switch between a blocking position (preventing removal) and a release position (allowing removal). This dynamic capability resolves the contradiction by making the security mechanism adaptable: it provides strong security during normal operation but enables easy removal when the cylinder core is rotated to the release position using the key.
2Reliability
If the locking element uses a blocking section that rests against a stop section to secure the cylinder, then security is improved, but the device complexity increases
Solution Approach 1:
The locking element merges multiple functions into a single integrated component: it combines the blocking section (for security), the coupling section (for rotational coupling with the cylinder core), and the connecting section (for axial fixation) into one unified element. This merging approach resolves the contradiction by achieving reliable security without proportionally increasing device complexity, as all functions are accomplished through a single multi-functional component rather than multiple separate parts.
3Ease of operation
If the coupling section is accessible through the keyway for coupling actuation, then ease of operation is improved, but the device complexity increases
Solution Approach 1:
The keyway serves multiple functions: it is used both for inserting the key to rotate the cylinder core during normal locking/unlocking operations and for accessing the coupling section to perform coupling actuation. This universal use of the keyway resolves the contradiction by providing easy access to the coupling section without requiring a separate access point or additional structural complexity.
4Adaptability or versatility
If the locking element has both a blocking section and a coupling section, then functionality is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The locking element is designed as a single integrated component that combines the blocking section, coupling section, and connecting section. This merging approach improves ease of manufacture compared to using multiple separate parts, as it reduces the number of manufacturing steps, assembly operations, and potential failure points. The multi-functional design achieves high adaptability without proportionally increasing manufacturing complexity.
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A cylinder lock comprises a locking cylinder, a bracket for receiving the locking cylinder, and a locking element. The locking cylinder has a cylinder housing and a cylinder core rotatable within the cylinder housing about a cylinder axis, with a keyway. The locking element is axially fixed to the locking cylinder and comprises a blocking section, which in a blocking position rests against a stop section of the bracket, and a coupling section. The coupling section is accessible for coupling actuation through the keyway and can be rotationally coupled to the cylinder core by means of this actuation. The blocking section can then be moved from the blocking position to a release position by rotating the cylinder core with an associated key, in which the locking cylinder is released for removal from the bracket.