Door Blocker With Wireless Alarm Sensor

The patent replaces the purely mechanical chain lock or pivotable guard system with an enhanced system that incorporates electronic sensors and wireless transmitters. The mechanical blocking function remains, but is supplemented by electronic detection mechanisms (load cells, strain gauges, or breakaway sensors) that automatically detect forced entry attempts and send alerts, transforming a passive mechanical device into an active security system with electronic monitoring capabilities.

The patent introduces intermediate components (sensors, transmitters, and communication modules) that mediate between the mechanical door blocking function and the external monitoring system. These intermediaries detect physical stress or breakage on the blocking device and translate it into electronic signals that can be transmitted to authorities or security personnel, bridging the gap between simple mechanical operation and sophisticated security monitoring.

The patent implements multi-functionality by designing the door blocking device to simultaneously perform mechanical blocking, force detection, and wireless alarm notification functions. The same device structure that provides physical security also houses sensors and transmitters that enable electronic monitoring, eliminating the need for separate alarm systems and reducing overall system complexity despite added capabilities.