#PARTS OF A DEADBOLT LOCK DIAGRAM SERIES#

The reverse action brings the pins partially back into the cylinder and pushes the tang into the door jam and the wall, locking the door once again.Īs you can see, a door lock mechanism is quite complicated, yet most of its working parts are concealed from sight. The right key for a lock, when it is inserted, pushes each of the upper pins completely out of the cylinder, freeing it and allowing it to rotate, unlocking the door. The Bolt: Also called the latch, the bolt engages the inside of the door.

#PARTS OF A DEADBOLT LOCK DIAGRAM SERIES#

When it is locked, a series of spring-loaded pins are engaged by the cylinder. A key has notches that push each pin to an appropriate height when it is inserted. Some of the most important parts of a lock include: The Cylinder: Also called the body, this is the part where the key is inserted. The upper pin of each pair is partially in the cylinder and partially in the door, securing it from opening when the door is locked by ensuring the cylinder cannot rotate. Inside, a door knob lock prevents the handle from turning. There are integrated locks that are important for the knob itself, and some of the time there is a lock, deadbolt, or latch somewhere else on the door. Through Spindle This long rod that connects the handles/knobs through the door and mortise lock body.

Handle/Knobs The device that you will turn in order to retract the latch once the door is unlocked. Small springs hold each pin in their place. Locks and Latches: ( Parts of Door Knob) Door knobs include a wide variety of locks and latches. Lock Body The housing for the bolt work, which are the components that will disengage and engage the lock.

More specifically, inside the cylinder are upper pins and lower pins in pairs and of different lengths. We have prepared several helpful resources for you to assist you in using antique door hardware with new. We are working to add more of our inventory online each week. It is the opposite action which locks the door. We have an extensive collection of antique door locks and lock parts, more than shown on our site. This releases a spring which pushes the tang partially out of the cylinder and into the door jam. To lock the deadbolt, when the right key enters the lock, it allows the cylinder to turn, which turns the cam. Inside the lock cylinder–the housing containing both the key entry assembly and the deadbolt knob – are pins, springs, a cam, and the tang. It provides a clear understanding of the different parts and their functions, allowing individuals to troubleshoot and repair any issues that may arise with their door lock. The parts of the door lock that are not visible but that function to keep the lock working are known as the door lock mechanism. A door lock mechanism diagram is a visual representation of how a door lock works.

Parts of a deadbolt lock diagram