Locking Device Anti-Tamper Protection via Magnetic Key
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Solution Overview
Problem
Existing locking devices face challenges in providing effective anti-tampering protection against drilling and pulling, as criminals continually develop new methods to manipulate these systems, necessitating the development of enhanced security features.
Innovation Solution
A locking device with a cylinder core mounted in a housing, featuring anti-drill and anti-pulling protective pins that are slidably mounted in protective pin channels, which are blocked by a parting line until a reversible key with magnetic elements is inserted, allowing the pins to be moved into the cylinder core section, thus releasing the parting line, utilizing a spring for additional prestressing and magnetic repulsion for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protective pins are mounted in protective pin channels to provide drill and pull protection, then security against tampering is improved, but the device complexity increases due to the additional components and assembly requirements
Solution Approach 1:
The protective pins are nested within the protective pin channels, which are integrated into the locking cylinder structure. The pins are positioned within the channels such that they extend through the parting line into the housing, creating a nested configuration that provides tamper protection while maintaining a compact overall structure.
Solution Approach 2:
The protective pin channels are divided into distinct sections: a housing section and a cylinder core section, separated by the parting line. This segmentation allows the protective pins to be positioned strategically across the interface between housing and cylinder core, providing enhanced protection at the separation joint while allowing modular manufacturing and assembly.
2Reliability
If protective pins extend through the parting line into the housing to block direct manipulation, then ease of operation is worsened, but security against tampering is improved
Solution Approach 1:
The protective pins are pre-positioned within the protective pin channels during manufacturing, extending through the parting line into the housing to block direct manipulation attempts. This preliminary positioning ensures that tamper protection is active before the locking device is even assembled or installed, preventing drilling or pulling attacks on the separation joint.
Solution Approach 2:
The protective pins act as intermediary elements between potential tampering forces and the critical separation joint. By extending into the housing, they serve as a mechanical barrier that intercepts and neutralizes drilling or pulling attempts before they can reach the vulnerable interface between housing and cylinder core.
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 solution provides increased security by preventing direct manipulation of the protective pins from the key channel, ensuring additional protection against drilling and pulling, and enhancing the overall security of the locking device.
Implementation Method 1
at least two magnetic elements formed on or in the key shaft of the key... and the separation joint can be released
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
The invention relates to a locking device (10), comprising a locking cylinder (20), a key (50) and a manipulation protection device, wherein the locking cylinder (20) has a cylinder core (30) mounted in a housing (40), wherein a separating joint (25) is formed between the housing (40) and the cylinder core (30). According to the invention, the manipulation protection device has at least one protection pin (35) which is mounted so as to be displaceable in a protection pin channel (41), wherein the protection pin channel (41) has a housing portion (45) and a cylinder core portion (46), wherein, in a blocking position of the locking device (10), the protection pin (35) is arranged at least in certain portions in the housing portion (45) in such a way that the separating joint (25) is blocked, and, to achieve an opening position of the locking device (10), the protection pin (35) can be completely displaced into the cylinder core portion (46) and the separating joint (25) can be released by virtue of a key (50), which can be inserted into the cylinder core (30), and by virtue of at least one magnetic element (60) formed on or in the key shank (52) of the key (50).