From the quality of the lock largely depends on the degree of protection of any room, whether it is a commercial office or a shopping center or a residential apartment and a private cottage. The entire range of such mechanisms presented in the modern market can be defined in 2 basic groups on the principle of installation - these are mortise and overhead door locks, the price of which varies in a sufficiently large range.

Both variants are equally in demand. Therefore, before you give preference to one or another design, be sure to read all the advantages and disadvantages of each solution, functionality, as well as the installation scheme of the overhead and mortise lock. All the intricacies of the purchase and installation of the first-type locks, you will learn from this article.

What is the difference in the overhead design?

The invoice door lock is the most simple design. In the process of its installation, it is not required to cut part of the door canvase, which is one of the indisputable advantages of such a solution. It is installed directly over the sash - the main module on the canvas, the response part - on the box.

Important! You can open it outside the key, and from the inside - a special mechanism. Additionally, a variety of valves and wiring latches can go in the configuration that block access to the room than the level of security is raised.

Device of an overhead castle

Standard equipment such a lock consists of:

• housing;
• facial plank;
• the response;
• drive lever;
• secrecy locking mechanism;
• a unique set of keys for this lock.
  

  Important! To buy a really high-quality invoice lock, it is better to give preference to proven brands. In this case, you can be sure that the device will work reliably, without failures, and the components are made of high-quality, durable materials.

Video about the action of the castle

It is easy to understand the coverage of the lock and the principle of its device acts in more detail how you can easily look at the video review below.

How to choose the correct overhead lock?

Before you choose a suitable mechanism for your room, view the possible options for models of the invoice lock in the photo. You can easily find them in the catalogs of specialized stores or online.

When buying a door lock, consider the following criteria:

1. The level of secrecy of the locking mechanism. Most often, such locks are equipped with a suvalden or cylinder secret. Cylindrical is more beneficial in that when the failures during operation occurs or the wrench is the possibility, there is an opportunity only to replace part of the parts that constitute its internal fill. This will help reduce the time and the cost of installing a new castle.
2. The design of the door itself. The recommended application of the overhead elements does not have any particular limitations. The main requirement here is the preliminary certainty, which way the door itself will open. Models differ on left-sided and right-sided, as evidenced by the corresponding labeling on the case and write in the passport to the mechanism.
3. Type of locking element. According to this principle, blistering systems are distinguished, which can be performed in the amount of 1-5 valves, and rampant, in which this item is a single monolithic "tongue".
4. The principle of the overhead lock. For this criterion, electromechanical, electronic and mechanical structures are distinguished today. The simplest - last type, which are opened only through a normal key. For the operation of the electronic, a special key will be required, which will give an electripults. The latter guarantee a higher degree of reliability, but at the same time, it is somewhat more complicated to repair such a lock.
5. The presence of additional equipment. It refers to the equipment of the built-in latch of a fixed or spring type. This item allows you to lock the door from the inside, after which, open it outside the key is not possible.
   

   Important! To buy a truly correct outline lock mechanism, focus on the requirements of the requirements. Choose in such a way that the model suggests you in all respects. And do not forget about the size and design, because I do not want to spoil the appearance of the beautiful door of a far unsightly lock.

Installation of an overhead castle

The circuit of the installation of the invoice lock is much easier than the mounting of the mortise. The principle of action in this case is similar, but it does not require unnecessary manipulations aimed at the exact cutting part of the door to embed the mechanism.

Installation Tools

Before you begin to perform work, be sure to prepare all the necessary tools so that the process does not slow down due to your forgetfulness. In this case, you will need:

• drills of different sections;
• electric drill;
• hammer;
• pencil;
• corolon and roulette;
• bit;
• chisel.

Installation of the Castle

To maximally and correctly install the invoice lock, initially carefully read the scheme proposed by the manufacturer of your selected model.

Then follow the step-by-step instructions below with the main recommendations:

1. Make a pencil markup installation of the main case.
   

   Important! When determining the optimal height, adhere to the recommendations of professionals. The most convenient is the location at the level of 110-150 cm from the floor. Focus on your personal growth, if you install in your apartment or on the average growth of alleged visitors.
   

2. Drill the suitable holes for installing the housing.
3. Improve them by the chisel or chisel so that the holes are perfectly fitted under the fasteners and excluded their mobility.
4. Attach the case and fix it.
   

   Important! Note that the principle of fastening is determined by the type of material from which the door itself is made. For wooden or woodcuts, use ordinary screws. And in order to perform a high-quality fixation of the overhead lock, on metal doors will have to build special pins from a similar metal. Such details are better to buy immediately at the point of acquiring the castle itself so that they perfectly coincide in size with your chosen castle model.
   

5. Check the stroke of the valve several times - how smoothly it happens, whether there are no stupuses or the need to apply additional efforts to open-closing.
   

   Important! In no case do not let this step. Continue the installation of an overhead lock only after it was convinced that it is fully working. Otherwise, you risk staying behind a closed door without the possibility of exiting the room after the completion of the entire process, and therefore all efforts will be spent in vain.

6. Blank the door and slide the locking element to the outside.
7. Make the most accurate markup of the installation site of the response in such a way that the holes coincide clearly with the "tongue" of the castle.
8. Drill the desired number of holes.
9. Lock on the panel. +
10. Check the quality of the opening lock.

Conclusion

As you have already seen, the principle of mounting the overhead lock is quite simple. If you clearly adhere to the setled rules, you can fulfill it without much effort, spending quite a bit of time. Be careful and careful when buying and installing the door lock, and it will surely serve you not one dozen years old!