Everyone knows the simplest lock on the door in the form of ... a deadbolt. It was invented several thousand years ago and little has changed in its design over the years.

Nevertheless, I want to suggest that you slightly improve this mechanism, increasing its resistance to hacking.

A little about the design.

The basic design is not much different from the generally accepted scheme. In our case, this is:

- a steel strip on which 2 M12 nuts are welded

- a rod with a diameter of 8-10 mm as a valve.

- locking pin - to protect against unauthorized attempts to move the bolt longitudinally

- locking bar - to protect against unauthorized rotation of the bolt around its axis.

Starting position of the bolt:

The handle of the deadbolt falls down behind the locking pin - this will protect against attempts to longitudinally displace the deadbolt by a person from the outside.

The locking bar is lowered and does not allow the handle to rise in case of an attempt to turn the bolt.

If there is a gap between the door (gate) and the boat (column), do not be afraid with such a deadbolt that an intruder can open it from the outside.

A more detailed arrangement of the lock bar assembly

Moreover ... as experience has shown - even from the inside, no one could quickly open it.

For more information about this bolt, you can watch the video: