Panic Lock Pre-Alarm Mechanism
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Solution Overview
Problem
Current panic locks lack a pre-alarm system before unlocking, which compromises security by not alerting users or authorities of unauthorized access attempts.
Innovation Solution
The panic lock incorporates a mechanical time delay and alarm device that can be triggered by the operating handle, allowing for a delayed lock release and simultaneous alarm signal, along with an energy storage mechanism to ensure secure operation without electrical dependencies, and an electromagnet control system for secure release mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a panic lock is designed to allow immediate opening from the inside for safety, then emergency evacuation is enabled, but security against unauthorized access is compromised
Solution Approach 1:
The alarm device is activated before the lock is opened, providing a warning signal to potential intruders. When the operating handle is actuated, the alarm triggers first, then after a predetermined time delay, the locking elements are retracted. This preliminary alarm action maintains security by deterring unauthorized access while preserving emergency evacuation capability.
Solution Approach 2:
A time delay mechanism serves as an intermediary between the handle actuation and the actual lock release. This intermediary component introduces a time buffer that allows the alarm to sound before the lock opens, creating a transition phase that balances security and safety requirements.
2Object-affected harmful factors
If an alarm device and time delay are added to provide pre-alarm notification, then security against unauthorized access is improved, but device complexity increases
Solution Approach 1:
The patent replaces electrical or electronic alarm and time delay systems with purely mechanical components. The alarm is triggered mechanically through the existing handle mechanism, and the time delay is achieved through mechanical engagement sequences rather than electronic timers. This substitution reduces device complexity by eliminating the need for additional wiring, power sources, and electronic control systems.
3Reliability
If the lock uses purely mechanical time delay and alarm without electrical components, then reliability in power failure situations is improved, but control precision and automation are reduced
Solution Approach 1:
The mechanical system is designed to be self-actuating through the handle mechanism itself. When the handle is pushed, it automatically triggers the alarm, engages the time delay sequence, and subsequently releases the lock without requiring external power or control systems. The mechanism serves itself by using the input force from handle actuation to drive the entire sequence of operations.
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
Enhances security by providing a pre-alarm notification and delayed lock release, preventing unauthorized access while ensuring the lock can be opened in emergency situations without power, maintaining operational reliability.
Implementation Method 1
a trigger lever (18), which is held in the triggered position by an electromagnet (28)
Implementation Method 2
a magnet (52), which interacts with a magnetic field sensor (53), for example a reed contact or a Hall element
Data Source
Figure 1~4
Figure 5
Figure 6~7
AI summary
The interlock (1) has a lock mechanism that controls a catch bolt (8) and a lock bar (7), and an actuating handle (9) which is coupled with the lock mechanism for actuating the catch bolt or the lock bar by storage spring (15). The storage spring is charged by the actuation of the actuating handle. A release device is provided to release the discharge of energy for actuating the lock mechanism in the opening direction, where the energy is stored in the storage spring.