The lock prevents the spindle of the bolting mechanism from retracting from the door frame making it impossible to open the door.
Inner workings of exterior door lock.
First the visible parts need a brief explanation then the mechanism itself will be looked at.
Understanding door lock parts.
Each pair rests in a shaft which is drilled through the cylinder and the housing around the cylinder.
Normal doorknob locks have five pairs of pins which interact with a single key to lock or unlock the door.
A key is required to open the door from the exterior side of the door.
It s useful for any diy er to know how things around the home operate.
On doorknobs that have a lock it is employed by a small lever or push button on the interior handle.
The main parts of a door lock are the cylinder bolt box and strike plate.
The pins are placed in pairs with one on top of the other.
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.
What is seen besides the handle is the deadbolt knob the inner and outer panels the key entry the bolt plate and the bolt itself.
Rekeying involves realigning the pins and springs in the inner workings of the lock in order to match the lock to a new key.
New front doors change everything in 4 entryway before and afters.