What are the different types of door latches?

One of the simplest types of door latches is the latch on the hook. This usually consists of a short, arched metal bars attached to one side of the door and a metal ring connected to another door frame. The metal rod is therefore inserted into the metal ring to keep the door closed. In some cases, it is also used to maintain the door constantly open, with a metal ring attached to the wall. This door latch does not provide as much security as other modern latches.

Another simple type of door latch is the spring latch. It also consists of two parts. The traditional spring door latches have cords connected to the metal screw to pull them manually and insert them into the metal opening connected to the door frame. Modern latches, however, have oblique screws designed to automatically insert when the door is pushed. For greater protection, these latches can only be released by manually rotating the handle.

One modern type of door latches is the sliding door latch. One sliding door is usually pThe metal screw and handle and other sliding doors are built with a metal notch to contain a screw. When the sliding door is pushed together, one can turn the handle to release the screw and lock the door. These latches are particularly safe when there are transparent sliding doors near outside to avoid intruders and thieves. They can also maintain mistakes and insects while still leaving the necessary sunlight.

One of the safest door latches is dead. The dead look like a metal box with a handle on one of its surfaces and a key hole on the opposite surface. Inside the box is one or two screws that automatically pull when the door is closed. For greater protection, Deaderratch also has a lock that permanently locks the metal screw on site - even the key cannot unlock it. Some dead are equipped with an extraordinary bolt can be pushed only a few curves of the key, which is safer.

doors can also be controlled electronically as inFallen electric latches of doors. This type cannot be unlocked not by the key but with the programmed code. Some electronic latches can even be connected to a alarm system that warns the police or homeowner if the wrong code is entered several times. Doors such as these are installed in expensive residences and devices that require tight security.