4 Types of Locksets and Their Uses – Types of Locks for Doors [with Pictures]
What is a Mechanical lock?
Types of Locksets :- A mechanical lock is basically a device which is used to prevent access to a room until a specific release mechanism is activated. The locks require a lever, a key or a knob in order to open the door.
Irrespective of the types of lock, the basic function of any lock remains the same that is securing the door until opening equipment is used to release the lock.
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Types of Locks
There are basically 4 types of mechanical locks which are generally used. They are-
1. Tubular Locksets: ( Types of Locksets )
Tubular locks are a bored lockset. In the edge bore of these locks, a latch or bolt mechanism is installed. A tubular lock is also known by the names- radial lock, ace lock or a circle pin tumbler. Tubular locks have got their name from the shape of the keyway which is circular. The tubular locks have a basic ring-shaped hole and in the middle it has a solid metal cylinder. There are about seven or eight pins in the ring gap. In a tubular lock the key pins are moved horizontally. The lock has grooves cut into the outsides of the ring shape. There is a specific way in which the key has to be inserted in the lock.
The tubular locks provide light – medium duty. They have a smaller rose and come in market with decorative levers. However, they have limited cylinder options, cannot be used on thick doors and the chassis is not operational.
Applications– Often used for unattended commercial products. They are used in Bike locks, ATM’s, vending machines.
2. Cylindrical Locksets: ( Types of Locksets )
Cylindrical locks are also a bored lockset. In the cross bore of these locks, a latch or bolt mechanism is involved. The cylindrical locks are quick and easy to install. The mechanism of the lock uses a series of different length of pins. These pins follow the pattern of the key. The pins take the correct positions, such that the lock is released when the key is inserted into the lock. There are five types of cylindrical lock, namely-
A) Euro Cylinder Locks
They are available in many sizes and many brands. They are also one of the most popular locks. The euro cylinder locks have three different locking options-
- Single cylinder type– This type of lock can be locked from one side only
- Double cylinder type-This type of lock can be locked from either side of the door.
- Key and thumb turn option– This type of lock is opened by using a key on the outside whereas a thumb turn is used on the inside.
The euro locks are very popular because they have a wide range of varieties in order to accommodate the varying door thicknesses.
B) Oval Cylinder Locks
Apart from an oval shaped barrel and an oval mortise lock case; they are similar to the euro locks. The oval cylinder locks lacks the thumb turn locking option.
C) Mortise Locks
These locks are more significant than euro locks because they are larger and round. However, this big size serves as a disadvantage because it doesn’t fit every type of door or lockset. The biggest advantage of mortice locks is that, it consists of a threaded housing, which makes it more secure and hence very less vulnerable to breaking or snapping.
D) Key In Knob Cylinders Locks (KIK Cylinders)
Key in Knob is abbreviated as KIK. The KIK cylinder locks have a many locking mechanisms such as levers, knobs and deadlocks. The KIK cylinders should always be installed within a metal door knob in order to prevent their breaking. This installation is usually challenging and requires precision. If not done with proper precision, they key may not properly work.
E) Interchangeable Core Cylinders Locks
These types of locks consists of a removable/ replaceable core settled inside the lock housing. The above line means that if the control key is available, then the lock can be changed easily and fast. There are six to seven pin cores available in these cylinders; hence they work well with master key systems. In case the control key is lost, then it is very expensive to rekey a standard lock
3. Interconnected Locksets: ( Types of Locksets )
When the knob or lever is turned up to open the lock, the internal mechanism deactivates the deadbolt lock. The interconnected lock has a combination of tight security of deadbolt and easy egress of a lever handle. The interconnected locks are available in a wide variety and many styles to suit both the residential and commercial needs. They are secure and easy to use hence they are preferred by many. These locks are generally used in municipalities for apartments, buildings, hotels/ motels etc. The interconnected locks are medium duty. However they have limited finishes and functions.
4. Deadbolt Locksets: ( Types of Locksets )
The deadbolt lock consists of a bolt which is started by either a key or a thumb turn. The dead bolt lock is not spring operated and cannot be jimmied opened with a knife .Hence it provides a good security. The deadbolt locks are installed on solid wood, steel or fiberglass doors. These doors are good in resistance against forced entry. The wood cannot stand much battering like hollow core doors made of soft thin wood and should not be used as exterior doors. A deadbolt lock mounted on a hollow core door reduces the security of these locks.