Digital door lock for crime prevention

A residential security door lock that deploys a self-defense device from the handle when an emergency passcode is entered.

This technology features a digital door lock with a main body containing a keypad and a handle with a built-in storage compartment. When a specific code is entered into the keypad, an ejection unit triggers, pushing the self-defense device out of the compartment.

Home invasion crimes targeting people living alone as they enter their homes are on the rise. However, portable self-defense tools are often difficult to carry at all times, making them unavailable when needed most. Existing door locks that send an emergency signal when a distress code is entered still have a delay before help arrives, failing to prevent physical harm from impulsive violence or threats by intruders during that critical window.

This technology uses a locking member placed between a compression spring and the self-defense device within the storage compartment. A rotating latch member holds the locking member in place until an actuator rotates the latch, allowing the spring's force to push the device out. A magnet on the device attracts the locking member to keep it secure, and the same input triggers a speaker to sound an alarm. Ideal for studio apartments, officetels, women's safety housing, and residential building entrances, it allows users to discreetly access a self-defense tool and sound an alarm by simply entering an emergency code.

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Key Features:

• A main body installed on a door with a keypad, and a handle attached to the body with a storage compartment.
• An ejection unit that operates based on the keypad input to release the self-defense device from the storage compartment.
• A locking member positioned between a compression spring and the self-defense device, featuring a catch and a magnet that creates an attractive force with the device.
• A blocking member including an actuator that rotates a latch member to release the catch.

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