Mortise lock for the door: features of choice and installation

Mortise locks are the most popular devices protecting various objects and private households from intruders. These mechanisms have earned deserved fame throughout the world, they are reliable, do not spoil the look of the door. Mortise locks are also successfully combined with other locking mechanisms. They are on the market in great variety. A person who is far from the technology, it is difficult to understand all the intricacies of their choice.

Door leaf, made of solid wood, has excellent strength, it also has excellent sound insulation characteristics. To overcome such a barrier is not easy, therefore, burglar, to get into the apartment, often prefer to "solve problems" with the lock, using various master keys.

Mortise lock, if properly installed, can serve as a reliable protection against unauthorized entry into the home. Many believe that the violation of the integrity of the door leaf when inserting a lock a priori violates the strength of the door. This statement is a myth. The locking device is a sturdy metal construction that has a solid body; on the contrary, it can additionally strengthen the door.

The advantage of the installation method of the door lock in the end of the door:

• the mechanical device is reliably protected from sand and dust;
• does not spoil the overall picture, the door remains flat and smooth.

The lack of mortise locks is that if the mechanism is broken, you will have to:

• remove it by removing the door leaf from its hinges;
• repair the door.

There are only four types of mortise locks, differentiated by the criterion of reliability. The most popular of them - the third, the most expensive - the fourth. The most common type is a cylinder, it is also one of the most wear-resistant. Also often used suvaldnye devices that have additional protection against unauthorized entry into the home. There are also mechanisms with a special electric drive.

Cylinder and lever locks are widespread on all continents. Distinguishes their high protection from the possibility of opening with master keys. An internal narrow-profile cylinder lock, for example, has a good resource - more than 50 thousand cycles for opening-closing. It is easy to calculate that if the door is opened 8 times a day, the mechanism can last for a quarter of a century. The durability of the device depends on the guides, which must be made of quality steel. If this condition is met, then the mechanism will serve for a long time without any interference.

The level lock is considered one of the most reliable locking mechanisms. Suvalds are special shaped plates, of which there are usually 3-5 pieces. Open such a lock is possible, if only the key will correspond to a specific profile.

Recent years have also become increasingly use special electromagnetic locking devices. The electromagnetic lock mechanism is installed in the door and connected to the electronic control unit. Often such locking mechanisms do combined.Such a dual-system unit has a higher degree of reliability. The electromagnetic lock can, for example, work in tandem with the lever mechanism, which significantly increases the degree of protection of the room.

On the mechanical lock also mounted special sensors that track the number of turns of the key. There may also be a magnet, which is triggered if the cylinder is partially rotated by an angle that does not correspond to a given parameter. In this case, there is a special locking device, and if within a few seconds the door is not opened, then the locking bolts will automatically work. They additionally fix the door leaf. The attacker to find their location in the end of the door leaf is very difficult. If the locking bolts have worked, the master key becomes useless.

The number of suvald is directly proportional to the reliability of the lock. Six levers have mechanisms with about a million combinations.There is also additional protection, which is done using figured cuts, which are combined with key grooves and fake slots. The advantage of the suvaldny mechanism is a reliable protection against mechanical breaking. Such devices are best installed in metal doors, then the level of protection increases even more.

Mortise locks are often equipped with electronic systems that can recognize an attempted unauthorized entry. Under such circumstances, the automatic locking of the door takes place with a special mechanism turning by 90 degrees. In the cylinder lock, instead of metal plates, small round elongated nodes are used, resembling cylinders. They are ranked by height based on a given combination. The devices are quite reliable - even with a microscopic discrepancy between the location of one of the elements, the device is blocked, the door does not open.

Cylindrical elements are manufactured with minimum tolerances, which is the main characteristic of the quality of the lock. For external doors, it is often recommended to use a “mix”, that is, a combination of different types of locks. This combination enhances the level of homeowner protection. The number of possible combinations of cylinder locks:

• simple - from 11 to 10 thousand;
• average - from 5 thousand to 5 million;
• complex - from 5 million to 5 billion.

The latter can also be opened with a special card, it is almost impossible to hack them. Electromechanical locks are divided into three parts:

• persistent;
• household;
• economic.

The first type is the most expensive and has a large number of levels of protection. Such locks can be used both in bank vaults and ordinary apartments. Mortise locks are:

• electronic;
• code;
• smart locks.

Electromagnetic form works from such devices:

• typesetting mechanism;
• magnetic card.

The mechanism that ensures reliable door closure is the presence of 4-8 crossbars. Among its advantages it is important to note:

• You can control such a device from a distance;
• easy installation;
• locks can be put on any door.

Electromagnetic locks provide the maximum degree of protection, which is provided by the rapid change of code combinations, the difficulty of detecting the main bolts. Among the shortcomings it is necessary to mention the high cost of the locking mechanism. It also requires a constant power supply. In recent years, smart blocks have become increasingly popular. A special electronic unit that can be operated from a mobile phone is connected to a conventional lock. Smartlocks are compact, reliable, with the growth of their popularity their price directly proportional decreases.

It is better to buy locks in company stores, and they must be accompanied by all quality certificates. It is best to take branded original locks, which recently appeared on the market. To find the keys to such mechanisms is quite difficult.

When buying in the first place you should pay attention to the level of protection. Take a product that has at least a third level of resistance to burglary. The number of combinations in this case should be large enough. It is also desirable that the lock could be reprogrammed.When buying, be sure to find out if he can change the cylinders (if the cylinder lock). A level lock for a wooden door leaf is better to choose a medium thickness, for a metal door a more massive mechanism will do.

First of all, you should decide where the mechanism itself will be located. As a rule, the distance from the castle to the floor is no more than one meter. The mechanism is cut into the timber, which is provided for by the manufacturers of the doors for this purpose. There are no hard restrictions for a metal door; you can install a lock in it anywhere. The lock block is carefully measured. These parameters are transferred to the door leaf and laid out with a marker or pencil. Then you should clarify the diameter of the drill, which should be one millimeter less than the calculated figure. The mark is made with a marker on the drill, taking into account the width of the mechanism. Then a number of holes are drilled. The treated area is removed with a chisel and a hammer. The groove should be bored until the lock enters it without any difficulty.

To accurately determine the location for the larvae and the handle, you should attach the lock against the door (most often this is done in relation to the outside). After determining the control points holes are made. After that the larva is installed and fixed with the help of bolts. Then you need to check how well the mechanism works. It should function without difficulty. After everything is successfully fitted, handles are inserted, lining is made.

Such an installation algorithm is appropriate for mounting a lock on almost any door. - from metal fire in the shopping center to the entrance oak in the apartment. Also, such devices will help protect the PVC door with a plastic base or aluminum profile inside. Wooden doors are usually sold with already installed locks, but sometimes there are circumstances when you have to do similar work with your own hands. First, you should correctly mark everything. Height should be taken approximately 100 centimeters from the floor. A hole is drilled, which will slightly exceed the diameter of the main unit (1-2 mm is enough).Based work on the design of the cut is made using grinders.

After all the grooves and holes will match the specified size, the lock is installed, secured, tested. If there are no questions, the mechanism works without failures, then it can be fixed thoroughly. Embed the lock - this is a job that requires a master of high qualification, practical experience. It is also required to prepare the appropriate tool:

• abrasive wheel;
• drill;
• Bulgarian;
• chisel;
• hammer;
• drill;
• chisels;
• screwdriver;
• self-tapping screws.

In the door frame are drilled holes for bolts (if they are needed) is very simple. Parameters of crossbars are taken, markings are made on the doorframe, then drilling is performed on the markings. The diameter of the holes by 1 mm must be greater than the diameter of the bolt. Mortise locks perfectly help preserve property. In order for the device to work flawlessly for many years, you should follow all the rules for installing this mechanism, assemble it correctly and take preventive measures in time.

How to install a mortise lock for the door, see the next video.