The main parts of a door lock are the cylinder bolt box and strike plate.
Inner workings of exterior door lock.
Each pair rests in a shaft which is drilled through the cylinder and the housing around the cylinder.
It s useful for any diy er to know how things around the home operate.
Understanding door lock parts.
A key is required to open the door from the exterior side of the door.
The pins are placed in pairs with one on top of the other.
Normal doorknob locks have five pairs of pins which interact with a single key to lock or unlock the door.
The locking mechanism is an intricate series of springs pins cylinders and shafts that work together to secure the door.
Inside the cylinder is a series of small pins of varying length.
Each type of lock is built differently but let s take a look at the anatomy of a typical door lock usually used in homes or light commercial buildings.
On doorknobs that have a lock it is employed by a small lever or push button on the interior handle.
The lock prevents the spindle of the bolting mechanism from retracting from the door frame making it impossible to open the door.
Colorado state university mech202 design ii.
New front doors change everything in 4 entryway before and afters.