Peephole Security System with Threaded Interlocking Cylinder
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Solution Overview
Problem
Current peep hole designs are vulnerable to optical intrusion as they can be rotated or removed from doors, allowing unauthorized access, and internal covers can be dislodged by rotation or jiggling, compromising security.
Innovation Solution
A peep hole security system featuring a threaded optical shaft with a security pin and a threaded interlocking cylinder that prevents rotation by engaging with the door's surface, ensuring the bezel remains fixed and secure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the peep hole bezel is made rotatable for easy installation and adjustment, then the ease of operation is improved, but the security is worsened because it can be removed or rotated to allow unauthorized viewing
Solution Approach 1:
The peep hole assembly is divided into multiple components: a bezel, a security cover, and a tamper-evident ring. These segments can be independently installed and secured, allowing the bezel to be rotatable for installation while the security cover and tamper-evident ring provide fixed security barriers that prevent unauthorized viewing even if the bezel is manipulated.
2Reliability
If an internal peep hole cover is installed to block optical intrusion, then the security is improved, but the reliability is worsened because rotation or jiggling of the peep hole can cause the cover to become dislodged
Solution Approach 1:
A tamper-evident ring is introduced as an intermediary component between the security cover and the door. This ring features a fin that engages with a corresponding feature in the door, creating a mechanical linkage that prevents the security cover from being dislodged through rotation or jiggling of the peep hole assembly. The tamper-evident ring acts as a mediator that transfers and stabilizes the securing force.
3Ease of manufacture
If the peep hole components are simplified for ease of manufacture, then the ease of manufacture is improved, but the security is worsened due to increased vulnerability to tampering
Solution Approach 1:
The security system uses a nested structure where the tamper-evident ring is positioned within the bezel assembly, and the security cover is positioned within the tamper-evident ring. This nested arrangement allows multiple security functions to be integrated into a compact assembly that can be manufactured as a single unit or pre-assembled component, maintaining manufacturing simplicity while providing multiple layers of security.
Data Source
AI summary
Peep hole security systems and methods are provided including a threaded optical shaft having a bezel with a security pin extending from an interior surface of the bezel and a threaded interlocking cylinder including an interior flange. An optical shaft hole in a door receives the threaded optical shaft and a security pin hole in the door receives the security pin. The threaded optical shaft is then engaged with the threaded interlocking cylinder until the interior surface of the bezel contact the exterior surface of the door and the interior flange of the threaded interlocking cylinder contacts the interior surface of the door. Attempts to rotate the threaded optical shaft are prevented by the engagement of the security pin with the door.