KR20200032353A - Automatic Door Opening In Case of Fire Using Shape Memory Metal - Google Patents

Abstract

When an emergency situation such as a fire occurs, a requestor trapped in a room may experience embarrassment or loss of judgment and forget a method of releasing a locking device or repeat a malfunction. Therefore, when a situation such as fire occurs, the most effective evacuation route, the front door, cannot be used, and in most fires, examples of death in front of the door are frequently reported. The present invention provides a fire-safe door lock to improve the problems as described, and when it is operated, a spring made of a shape memory alloy connected to a locking rod of a digital door lock automatically operates as shown in the figure to release a locked state, and the fire-safe door lock can be opened arbitrarily without being affected by other circuits.

Description

Automated Door Opening In Case of Fire Using Shape Memory Metal}

Door lock, safety door, shape memory alloy, bimetal.

After discovering titanium-nickel alloys in the early 960s, more than 20 alloys have been found to have shape memory effects. Among them, the well-known and developed shape memory alloys are copper-zinc-aluminum, copper-aluminum- Nickel, titanium-nickel alloys, and the like. Shape memory alloys are applied to various industries in various ways because they generate a large amount of force while restoring shape, and can be used for medical and dental purposes, such as artificial muscles.

To solve this problem, the shape memory alloy is capable of recovering only 6 to 10% of the shape, and if it is deformed beyond that, it hardens as it is, and there are some problems such as the temperature range where the shape memory effect appears is too narrow. Research is underway, and research on the development of shape memory alloys based on new ideas is also in full swing. In addition, new shape memory alloys are also being discovered, and if they are put into practical use, they will be able to select the appropriate alloy according to the application.

Recently, various locks have been installed on the entrance doors of homes and offices. Electronic locks have various shapes and structures, and recently, digital door locks that are easy to use and have excellent preparedness against theft are installed. Such a locking device is designed to release the lock state by using a separate key from the outside, while the lock state is designed to be released only by a simple button operation in the room.

However, when an emergency situation such as a fire occurs, a requestor trapped in the room may be embarrassed or lose judgment and forget the method of releasing the above-described locking device or repeat a malfunction. Therefore, when a fire-like situation occurs, the most effective evacuation route, the front door, cannot be used, and in most fires, examples of death in front of the door are frequently reported.

In the present invention, the door is automatically opened in the event of a fire in conjunction with a digital door lock installed in a door such as a home or office, and the door is automatically opened by a spring elastic force according to the temperature change of the shape memory alloy and automatic release of the digital door lock in the event of a fire. This is for a door that automatically opens in the event of a fire in conjunction with a digital door lock that is automatically opened.

Recently, various locks have been installed on the entrance doors of homes and offices. Electronic locks have various shapes and structures, and recently, digital door locks that are easy to use and have excellent preparedness against theft are installed. Such a locking device is designed to release the lock state by using a separate key from the outside, while the lock state is designed to be released only by a simple button operation in the room.

Fig. 1 is an embodiment of the present invention

During the sensing operation of the existing sensor due to fire, the circuit is damaged by heat, and the anxiety that the door may not open can be resolved, and a quicker fire response is possible, as well as securing the best evacuation route. Fire in conjunction with a shape-memory alloy safety door lock that enables quick evacuation from an ignition site through instinctive evacuation even if loss of judgment is possible, thereby minimizing human injury and reducing property damage due to rapid fire response. It has the advantage of making the door open automatically.

When an emergency situation such as a fire occurs, a requestor trapped in the room may experience embarrassment or loss of judgment, such as forgetting the method of releasing the lock or repeating a malfunction. Therefore, when a fire-like situation occurs, the most effective evacuation route, the front door, cannot be used, and in most fires, examples of death in front of the door are frequently reported.

The present invention is intended to improve the problems as described above, and when operated, a spring made of a shape memory alloy connected to a locking rod of the digital door lock automatically operates as shown in the figure below to release the locked state and affect other circuits. It is a fire-safe door lock that can be opened arbitrarily without receiving a fire.

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Claims (1)

When activated, the spring made of a shape memory alloy connected to the locking bar of the digital door lock automatically operates to unlock, and is limited to fire safety door locks that can be opened independently without being affected by other circuits.

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