Castle "larva". Replacement of "larva" (castle)
Any real estate owner, sooner or laterthinks about changing the castle in his apartment or office. Why is this happening? This process is associated with the breakdown of the old device or with the loss of the key. Sometimes the castle changes after the change of tenant and as a result of the end of the expiration date of the product. Most often, the replacement occurs directly from the "larvae". The lock can not be installed in this case.
What is a "larva"
The system that guarantees secrecykeyhole and provides security, is called "larva." It protects a person from hitting the premises of intruders and so on. In the "grub" is inserted a key. After the rotation, the pins are aligned in the right order, which ensures the opening of the door. If they are in the wrong sequence, then it will not work.
At the moment in many modernThe devices of the pin are replaced with washers, probes or special blocks. Even with this, the secrecy and reliability of the "larva" does not depend on the type of filling, but on its quality, the accuracy of the setting and the number of parts.
Replacement
Not all key products that are used forinstallations on doors, are made so that it is possible to replace making accessories. For example, some options have to be replaced completely. It's about the code mechanisms, which are made in such a way that it will not be possible to replace only one larva of the lock. We will have to replace it with a completely new design.
Types of locks
There are several types of locks on sale, which are widely used. Often, they are used specifically for doors in living quarters.
There are the following models: cylinder, disk, pin, cross-shaped and there are also particularly complex.
Locks can be both overhead and mortise. The second option is considered more reliable. This system is able to close the room on both sides. In the inner there can be both a turntable and a regular key.
In addition, the locks are divided into upper and lower variants. They added some functions and options, an additional fixation.
If we consider the material and the number of combinations, the wear resistance of the lock, the complexity of the selection of the key and the resistance to mechanical factors depend on them.
Creating a "larva"
The "larva" of the castle is made in three levels of complexity.
- The first - low - implies 100 to 10 thousand symbolic variants. To create such a lock, low-quality materials are used.
- The average level works from 5 to 50 thousand. combinations. As a rule, the mechanism of operation of such a lock is fine, but there are negative reviews about the assembly. Often there is such a "larva" of the lock on the door of the VAZ.
- The highest level is characterized by 100 thousand or more variants of the code. Assembly at the best level, the materials used are also good.
Each of the products obtained is different. Quite often they influence the possibility of replacing the "larva".
Cylinder locks
A similar construction of locks appeared inmid-19th century. Due to the simplicity and convenience of operation, the cylinder mechanisms quickly became widespread and are currently the most in demand.
"Larva" and keys for the castle
All cylinder products are created under the standardDIN / RIM. At the moment the assortment is small. It should be noted that all the larvae from the manufacturers working with the first standard are replaceable. To choose the right one for yourself, you need to pay attention to the thickness of the door, the fixing screw.
Cylinders are divided into several systems: "key-turntable", "key-key", half-cylinder, system with gear. It should be noted that in all cases, except for the first, the "larva" changes without problems. With the gear you will have to suffer - it has too fine tuning. In addition, it is best that the "larva" in such a lock be changed by a specialist.
"Key-turntable" works by the principle: from the outside - a key, with an internal special turntable. The device centrally has a special movable type cam, which activates the crossbars. The replacement of the "larva" of the lock (VAZ) will be elementary simple.
The "key-key" is characterized by the presence of a key well on both sides. This door outside the master keys does not open if the key is inserted and locked in the inner door.
The door with a half cylinder opens only from the outside. Used such products for podsobok, buildings and so on.
The mechanism with the gear is quite complex and its technology depends on the manufacturer and model of the lock.
Replacing the cylinder with your own hands
It is necessary to take out the "grub", which will then be replaced. In its place and set a new one. The process takes no more than 30 minutes. Use a screwdriver, a screw and a tape measure.
After completing the work, you should check the lock on thesmoothness and clarity of work. If there are any problems, then you have to do everything again, otherwise there is a possibility that the product will be lost during operation.
Disk locks
Than this type of locks is different from any othercylinder models? Instead of pins and pins, discs are used. They are mobile and are necessary for opening the mechanism. The key for such a lock has a semicircular section, and there must also be cuts on it to drive the disks.
The described design was able to change the cylinder, however, only to the related one. At the moment, it will be difficult to purchase, so it's best to change the entire mechanism.
Cross-shaped locks
In these castles there is an unusual larva. Inside it are the pins, which are arranged in a special order. What kind of speech are you talking about? They are installed on 4 faces and move when turning the key. Due to the type of this lock, there are many options for combinations, but often experienced intruders open such items with a Phillips screwdriver.
In these locks, the larva is not recommended to be changed, it is best to replace the product itself, if necessary. But, if this is not possible, the lock can be easily dismantled and replacement of parts is carried out.
Pin locks
The "larvae" of such locks are made under two specific types of keys: perforated and English.
The second option is unreliable. The first is opened by drilling. If desired, it can be knocked out, which is not the first time. In order to replace the core, special skills are not required.
Especially complex locks
At the moment, manufacturersare interested in expanding their technologies, creating the most qualitative adaptation. Therefore, even now, reliable, durable and safe locks can be found on the market. If you choose high-quality options, then you do not have to think about fixing the "grub". However, for example, if the key was lost and this procedure is necessary, then everything is as simple as possible. Often in the event of a breakdown, people replace the latch of the door lock.
The larva of a complex castle
In order to create a complex lock mechanism, armored stands, titanium, a million possible combinations, refractory-type metal (for pins) are used, the key has floating parts.
To find such keys is almost impossible, but it's easy to change the "grub". But you need to understand that this will be quite expensive.
