2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42
Any real estate owner sooner or later thinks about changing the lock in his apartment or office. Why is this happening? This process is associated with the breakdown of the old device or the loss of the key. Sometimes the lock is changed after a change of tenant and as a result of the expiration date of the product. Most often, the replacement occurs directly "larvae". In this case, the lock does not have to be installed new.
What is a "larva"
The system that guarantees the secrecy of the keyhole and ensures security is called "larva". It protects a person from intruders entering the premises and so on. A key is inserted into the "larva". After turning, the pins line up in the correct order, which ensures the opening of the door. If they are in the wrong order, you will not be able to enter the room.
At the moment, in many modernfixtures, the pins 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, tuning accuracy and the number of parts.
Replacement
Not all lock products that are used for installation on doors are made so that components can be replaced. For example, some options have to be replaced completely. We are talking about code mechanisms that are made in such a way that it will not work to replace only one lock cylinder. Will have to replace it with a completely new design.
Types of locks
There are several types of locks on sale that are widely used. Often they are used specifically for doors in residential premises.
The following models are distinguished: cylinder, disc, pin, cruciform and there are also especially complex ones.
Locks can be both overhead and mortise. The second option is considered more reliable. This system is able to close the room from two sides. The inside can contain both a turntable and a regular key.
Besides this, locks are divided into upper and lower options. They added some functions and options, additional fixation.
If we consider the material and the number of combinations, then the wear resistance of the lock, the difficulty of selecting a key and the resistance to mechanical factors depend on them.
Creating a "larva"
The "larva" of the castle is made in three levels of difficulty.
- First - low - implies from 100 to 10 thousand character options. Poor quality materials are used to create such a castle.
- The average level works from 5 to 50 thousand combinations. As a rule, the mechanism of operation of such a lock is excellent, 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 code options. The build quality is top notch and the materials used are also good.
Each of the received products differs in features. Often it is they who influence the possibility of replacing the "larva".
Cylinder Locks
This design of locks appeared in the middle of the 19th century. Due to the simplicity and ease of use, cylinder mechanisms quickly became widespread and are currently the most in demand.
"Maggot" and keys for the lock
All cylinder products are designed under DIN/RIM standard. At the moment the range is small. It should be noted that all larvae from 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-turn", "key-key", half-cylinder, gear system. It should be noted that in all cases, except for the first, the "larva" changes withoutproblems. You will have to suffer with the gear - it has too fine tuning. In addition, it is best that the "larva" in such a castle be changed by a specialist.
"Key-turntable" works on the principle: from the outside - a key, from the inside - a special turntable. The center of the device has a special movable type cam that actuates the crossbars. Replacing the "larva" of the lock (VAZ) will be elementary simple.
"Key-key" is characterized by the presence of a key hole on both sides. This door cannot be opened with lockpicks from the outside if a key is inserted and fixed in the inside.
Half-cylinder door only opens from the outside. Such products are used for utility rooms, buildings and so on.
The gear mechanism is quite complex and its technology depends on the manufacturer and model of the lock.
Do-it-yourself cylinder replacement
You need to take out the "larva", which will then be replaced. In its place, a new one is installed. The process takes no more than 30 minutes. A screwdriver, screw and tape measure should be used.
After finishing work, check the lock for smoothness and clarity of operation. If there are any problems, then you should do it all over again, otherwise there is a possibility that the product will go astray during operation.
Disc locks
How does this type of lock differ from any other cylinder models? Discs are used instead of pins and pins. They are movable and necessary to open the mechanism. The key for thisthe lock has a semicircular cross section, it must also have cuts on it to set the discs in motion.
The described design got the opportunity to change the cylinder, however, only to a related one. At the moment, it will be quite difficult to acquire it, so it is best to change the entire mechanism.
Cross locks
There is an unusual larva in these castles. Inside it are pins that are lined up in a special order. What is it about? They are installed on 4 faces and move when the key is turned. Due to the type of this lock, there are many options for combinations, but often experienced attackers open such products with a Phillips screwdriver.
In such locks, it is not recommended to change the larva, it is best to immediately, if necessary, change the product itself. But, if this is not possible, then the lock can be easily disassembled and parts are replaced.
Pin locks
The "larvae" of such locks are made for 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 done the first time. No special skills are required to replace the core.
Especially complex locks
At the moment, manufacturing companies are interested in expanding their technologies, creating the highest quality fixture. Therefore, already now on the market you can find reliable, durable and safe locks. If you choose high-quality options, then think about repairing the "larva"won't have to. However, for example, if the key was lost and this procedure is necessary, then everything is done as simply as possible. Often, in the event of a breakdown, people replace the door lock cylinder.
Intricate lock larva
In order to create a complex lock mechanism, armor inserts, titanium, a million possible combinations, refractory type metal (for pins), floating parts are used on the key.
It is almost impossible to find a key for such locks, but it is easy to change the "larva". But you need to understand that it will cost quite a lot.
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