At the end of the 10th century, locking devices appeared in England, the work of which is similar to modern lever locks. They were made of iron pins with peculiar protrusions near the keyhole, which could not be opened without a suitable master key. There is information that a similar device was created in Rome in the 12th century with a similar technology, but in addition it did not allow someone else's key to turn. Since the 13th century, locking devices were completed and located with cross-over plates inside the room. The name "levers" is taken from the German Zuhaltungs Schloss (clutch lock), which is translated as "levers". This review presents the best models of lever locks with a detailed description, characteristics and average price.
Content
Castle construction
- Housing
It is an iron box, one side of which leans back for manipulating the mechanism. There are also secret parts. Fixed on an inner base, door or safe.
- Bolt
In the original version of the locking device, its key, during the initial rotation, displaced the device that was thrown from the slot in the upper part of the bolt. The subsequent turn led to the movement of the bolt to the side, and the throwing device jumped out into the groove. Closing and opening took place according to this principle.
In the future, the design of the lock changed and a latch appeared. It allowed for manipulations without completely rotating the master key. Improved safety by adding a rocker linkage. In new devices, one tooth is structurally weakened by the emerging hole. They break off when opened and the device cannot be opened, even with a lockpick.
The shank stand prevents the ledgers from shifting even when the device is closed. In this case, opening or squeezing will not work. Manufacturers know burglars drill through the rack. Now it is protected by an armor plate or a metal ball. Its material consists of high strength steel.
- Suvaldy
The coding elements of the locking device (levers) include plates of different lengths and configurations. The purpose is one - a guarantee of the secrecy of the castle.
- Key
Any durable metal will serve as a material. The master key is a round rod. On one side there is a head in a shape convenient for the owner, and on the other side there are barbs. Their number, height and geometrical dimensions determine the encoding. The downside is size (length). Otherwise, the benefits are undeniable. Advantages - secrecy, ease of use, duplication by pattern.
Leveled castles, in one form or another, have a history of several millennia. They got their name from the word "suvald" - plates of various shapes, with the help of which the lock is opened and closed. There are two types of them - swinging and translational (plane-parallel). In addition to the levers, the body includes crossbars, a toothed comb in a section, a bolt shank stand. Depending on the design, they are used in interior and exterior doors. This article examines the types of popular models for different purposes and costs.
Features of operation and installation
The movable parts of the levers are located on the same axis.By turning the key, the moving parts are displaced by an amount determined by the configuration of the levers. As a result, the crossbar is displaced. If it turns out that the master key does not fit, it will not work to move the locking mechanism. In theory, the devices are capable of transcoding. To do this, you just need to swap the moving plates in places. But you need a different key. Therefore, this method was not practiced. Locks with spare and additional levers are now on sale. This allows them to be exploited after hacking without changing the device itself.
What are the types
Devices of this type are of 3 types.
- Mounted or sheds are used to restrict access to garages, personal plots, sheds, gates. This group of devices is the most budgetary, massive and quite simple.
- Overheads are pretty easy to install. You just need to provide a hole for the master key. The devices are versatile and can be mounted in any convenient place, regardless of thickness and material itself.
- Locks with shaped cutouts are built into the base and mounted on the door end. Limitation in base thickness - structural strength decreases at the installation site.
Using helpful advice when choosing, you can understand the features and principle of operation of this device.
How to choose
When buying, the consumer himself determines the size, body and, in particular, the mounting plate, the key, all this is at his discretion.
What to look for:
- Safety class must be at least 3;
- The quality of the crossbars;
- Ingress protection;
- Design features of the new lock during installation;
- Key quality;
- Equipment.
In order to avoid mistakes when choosing, it is necessary to take into account some circumstances. There is no doubt that it is better to take a device from a good manufacturer during repairs. This is a guarantee of quality, good construction materials, plus, as a result, protection against burglary. When buying, you need to pay attention to the presence of an additional leveler, which allows you to change the master key over time without replacing the lock.
To ensure greater reliability when building a house and installing a lock, you should pay attention to locking devices with keys that have barbs on both sides. Breaking these locks is problematic even with a master key.
Manufacturers of high-quality locking devices of this type are brands of Russian, Italian, English and Turkish production. These are: "Prosam", "Kerberos", "Geryon", "Mettem". Foreign companies include Securemme, Abloy, Mul-T-Lock, Cisa, Kale, Mottura.
Rating of quality lever locks
The popularity of the models was determined by customer reviews. You will also find out where to buy goods from a particular manufacturer.
Sibrtech ZV8-4
Zinc-plated metal lock with a twist, closing in two turns. Includes two pads, instructions, body of the structure, three keys. Please note that in this model the crossbars are rectangular. Suitable for interior doors and utility rooms. Has the first class of secrecy. Opens and closes on both sides. Packaged dimensions: length - 145, width - 25 mm, height - 120 mm, weight - 0.488 kg. Factory packaging - PPH package. There are also models from this manufacturer with 4 protection class. In online stores, namely on the Yandex market, several models from this manufacturer are presented.
Advantages:
- easy to operate;
- available in many stores;
- low price.
Disadvantages:
- not for front doors.
Price: 280 rubles.
Mottura (Mottura) lever 52.771 (universal)
The device is Italian-made crab construction. Locking takes place using four crossbars protruding 40 mm. With the new six EASY levers go, it became possible to completely change the lever mechanism. Locking four turns. Crossbar diameter - 18 mm. 144,000 combinations. A ball in the shank post will protect against unauthorized drilling with a screwdriver. Crossbars with a diameter of 18 mm are extended by 40 mm, built-in rods by 20 mm. The left and right sides of the key are not symmetrical. In addition to linings and instructions, the set includes 5 keys. Model length - 206 mm, width - 136 mm, height - 30.5 mm.Installation of a device with a manganese insert is recommended for even more intrusion protection.
Advantages:
- the ability to recode if you lose your own keys;
- increased protection against burglary due to the installation of retractable rods;
- inexpensive;
- installation on the left and right doors.
Disadvantages:
- high price.
Cost: from 5500 to 9000 rubles. per piece
ZV 8-6G / 14
Russian-made device (Ryazan). Made of heat-resistant steel, it is installed on the outer metal doors of apartments, houses, entrances. It has five crossbars. Locks when closed by four half turns. False grooves on the levers protect against burglary. The number of levers is 8 pieces. It has protection against all major types of hacking (from collapsing, sawing a bolt, from drilling a mechanism, from a master key, from self-impression). Parameters: 90x97.5x26 mm, weight - 2.14 kg. Departure of the deadbolt - 21 mm. Includes 5 keys. This model can be ordered online,
Advantages:
- low cost;
- penetration protection.
Disadvantages:
- absence of a counter groove on the bolt shank post.
Price: 670 rubles.
Guardian 50.01
According to buyers, it is used as an additional upper constipation. In the package: four keys, instruction manual, screws. One of the most common models for old doors. There are eight levers in the castle, each of which has false slots. Closes with two turns. Protection plates on both sides allow for installation on both left and right doors. There is protection against impression cracking. The absence of a lower sidewall prevents debris from filling the mechanism, all matches, construction shavings fall down. It has a low cost among similar locks from other companies.
Advantages:
- strong attachments and attachments.
Disadvantages:
- no overlays;
- there are no door handles.
Price: 1100 rubles.
Sibrtech ZV-3
This brand is recommended by experts as an additional lock, if there is no latch, at a price of 587 rubles.
1st class of resistance. The number of levers - 5 pieces, half-turns 4. 4 crossbars with a diameter of 16 mm are extended by 40 mm. Keys in a set - 3 pcs. A set of overlays is available. Dimensions 19 * 2.8 * 11.5 cm.Weight 840 g. It can come off both inside and outside. It is used in interior doors, has high mechanical strength.
Advantages:
- non-removable striker plate.
Disadvantages:
- no latch, latch and pull rod.
Price: 600 rubles.
METTEM ZV8 165.0.0
Branded mortise, from galvanized steel of the second class. Economy version. Case dimensions - 150 * 136 * 24.5. The number of crossbars and half-turns is the same - 4 units. The diameter of the crossbars is 16 mm, made of galvanized steel, with an overhang of 40 mm. The set includes striker plates. Gross weight - 1.6 kg. The number of levers is 5 units. The dimensions of the nickel-plated front plate are 30 * 220 * 3 mm. The length of the factory key is 50 mm, but can be extended up to 80 mm on request. Packaging can be in a bag or carton. METTEM ZV8 165.0.0 is an analogue of the discontinued mortise lock ZV8 160.0.0, which is compatible with it in all respects. Those. the ability to replace without changing the door.
Advantages:
- the best in terms of protection;
- there is a striker plate.
Disadvantages:
- not included in the package: latch, latch and rod.
Cost: from 750 to 1700 rubles.
Omega ZV 8-4
Mortise model of the third class. 500 different combinations. Case dimensions - 75x82.5x15 mm. Factory keys - 3 pcs., 5 pcs. The thread on the key is not identical. The opening is slow. Cast rectangular crossbar one. This model is suitable for installation in metal and wooden doors up to 5 cm thick. Russian production. Packaged in a box with an instruction manual.
Advantages:
- there is an anti-burglar bar.
Disadvantages:
- there is no valve;
- one crossbar.
Price: 315 rubles.
BORDER ZV9-6 L / 15 KZ
Russian, mortise, designed for installation in the left entrance door. Available - 3 crossbars of 40 mm outreach. Reliable protection against force hacking. The set includes 5 keys. Can be installed complete with a handle on a rail. Gross weight is about 2 kg.Delivered in cardboard.
Advantages:
- "night watchman";
- the presence of a latch and a striker.
Disadvantages:
- only for doors on the left side;
- not all variations have door handles.
Price: 1500 rubles.
ZV 9-8 G in color
Copper colored mortise lock, country of origin - Russia. Product dimensions 2 * 6.8 * 21. Weight 1.3 kg. Versatile, can be installed in right and left doors. The latch is being redesigned. The set contains 5 keys. Has protection against drilling. There is a similar model not in color. The warranty period is 12 months. Packed in a cardboard box.
Advantages:
- the presence of a fastener;
- there are handles.
Disadvantages:
- high price.
Price: 1155 rub.
NSh ZV 8 - 8 U (79900/801) / 13
Lock type - mortise. Levers with false grooves (upper and lower) - 8 pcs. The number of combinations is 250,000. The diameter of the crossbars is 11 mm, the projection is 21 mm. The number of code elements of the mechanism is 8 units. Bolt movement units - 2 pcs. Removal of the well from the end of the web - 50 mm. Lock parameters - 82 * 75 * 17. The wall thickness of the case and cover is 1.5 mm, the end plate is 2.5 mm. The cover is fastened with two M4 screws. The crossbars have a cylindrical shape with a diameter of 10.7 mm. The cross-sectional area of the girder is 2.7 sq. Cm. The clearance of the liner post passage is 4.6 mm. Key shank diameter - 5mm. Designed to lock external doors of residential premises.
Advantages:
- deburring of the leveler edge;
- chrome nickel plating.
Disadvantages:
- no latch and catch
Price: 498 rubles.
ReX.3.12, 5 cl.
A novelty in Russian-made devices from the Elbor company. 5 safety class. Crossbars diameter - 18 mm, available - 5 pcs. The "fingers" of the device are extended by 40 mm. Protected against all common types of hacking. This attachment can be used for metal doors. Packaged in a plastic bag, no box.
Advantages:
- coated with zinc;
- with full anti-tampering function.
Disadvantages:
- functionality is not suitable for all premises;
- one year warranty.
Price: 1100 rubles.
Ptimash ZV 8-4
One of the simplest modifications. The crossbar is single, rectangular. The set includes: case, keys - 3 pcs., Cover plates - 2 pcs., Striker plate. Symmetrical key thread (easy to counterfeit). Designed for interior wooden doors. It is a hit on the Russian market. Delivered in a rectangular box with instructions.
Advantages:
- the lowest possible price;
- installs on the right and left sides.
Disadvantages:
- no handle;
- simple thread.
Price: 200 rubles.
CERBER ZVU-D C-1VD
Steel device for installation on iron doors. Third class of durability. Includes 4 keys and one counter plate. Three cylindrical ledgers can be extended 40 mm. Gross weight - 1.76 kg. Case dimensions: height - 130, length - 137.5, width - 24. Plate size - 220 mm. Comes in a shipping carton.
Advantages:
- soft key stroke;
- the presence of the plate.
Disadvantages:
- high price;
- no latch.
Price: 1283 rub.
Lever locks or as they are also called "safe locks" (which are not the same thing) have proven themselves well in protecting residential property. They can be selected in any size and production. There are three types of mechanisms: overhead, hinged and mortise. And if the first of the two listed are mainly used in garages and other street structures, then the third are universal. The average warranty period is 2 years. It is important to follow the directions and
the recommendations on the accompanying documents, apply as intended, do not make changes to the design of the lock if you do not have the appropriate skills and knowledge. The prices for the goods are indicative.
