Common in household doors, where the latch automatically springs back into place to lock the door.
A piece attached to the back of the cylinder that rotates when the key is turned. This rotation can then be used to operate the bolt, turning the latch in and out of the door frame. diagram of a door lock
Standard pin-tumbler locks use a series of small pins of varying lengths. When the right key is inserted, the "teeth" of the key push these pins up to a specific height called the Shear Line . Common in household doors, where the latch automatically
If you are looking to sketch or understand a standard lock diagram, here is the standard model described in most technical papers: Common in household doors
Understanding this diagram helps you troubleshoot common issues: