In addition to classic mortise locks, garage doors swing type must be equipped with a garage lock, the oldest and most reliable device for locking doors. The main function of locks and latches is for garage doors- fix them in closed position and prevent it from opening even under heavy load. In this case, the stoppers and locks can only be unlocked with inside gate
A distinctive feature of the design of constipations is their ability to withstand rough physical strength and complete inability to unblock the lock with outside.
The most common designs of locking systems for garage doors:
Important! In order for the locking mechanism to be highly resistant to burglary or shock loads, the locking rod or pin must engage seat no gap.
Most often, to fix the gate fold to the frame without a gap, various levers and gates are used, pressing the locks and latches for garage doors to load-bearing elements- threshold and upper beam.
This method of fixing doors allows you to prevent the sash from “dangling” when strong wind and draft, the main thing is that the absence of a gap does not allow attackers to break the socket or groove for fitting the fixing rod.
Of all the different designs of constipation, the least reliable are latches and latches. The design of such a mechanism is simple to the point of primitiveness. Essentially, it is a metal rod in a steel cage. When the rod is moved using the side lever, the edge of the locking element fits into the slot on the adjacent leaf and blocks the movement of the gate. You can install it in five minutes, but its resistance to hacking is extremely low, primarily due to the weak housing of the clip.
If necessary for real powerful garage clamp, you should use one of the following designs:
Advice! Each option is convenient to use in its own way, but requires careful care and lubrication of the mechanism.
Structurally, the flask lock consists of two elements - a lever with a hook and a fixing loop. The lever is installed on the gate leaf or on the door; when closing, it is enough to put the loop on the hook and throw the lever until it stops. This way, a gap is selected and the garage door is pulled tightly to the door frame. You can see how constipation works in practice from the video:
In the closed position, any effort to open the flap is perceived by the thick loop-hook of the flask mechanism; to break such a fastening, a force of more than several thousand kilograms will be required.
In addition, the flask version of the garage locking device is absolutely insensitive to clogging and contamination. Making and installing such a mechanism on the gate with your own hands is not difficult.
An eccentric or rotary lock, made in the form of a vertical tubular post mounted on the gate leaf in four support clips, is considered no less reliable. In the central part, a lever is attached to the rack, with the help of which the rack pipe can be rotated around a vertical axis. For convenience, the lever is located on bolted connection, which makes it possible to fold it by lowering it down.
A massive hook is welded onto the upper and lower ends of the pipe. Thick and short cylinders are installed on the threshold and on the top beam of the garage door frame. When the tubular post is rotated, the hook rotates around a vertical axis and engages with the cylinder at the top and bottom of the gate.
The strength of the mechanism is not inferior to the flask design, but a more complex version to make with your own hands requires the use of alloy steels and high-quality welding.
Twenty years ago, a very popular design among garage owners was a locking design in the form of a pinwheel or a rotating steel rail mounted on one of the doors. To make such a lock, it was necessary to weld a rotation axis on one of the gate leaves and make two stops to fix the locking element in the closed state; most often, two pieces of steel angle were used.
To close the mechanism, it was enough to rotate the locking frame around a horizontal axis. Simple and relatively reliable device made this design one of the most popular options among car enthusiasts. For a long time it was believed that it was impossible to open it from the outside.
The most simple circuits There have been and will remain for a long time, vertical clamps installed in the upper and lower parts of one of the sashes. This scheme is very simple to manufacture; for reliable operation and door locking, special sleeves or pipe cuttings will need to be installed in the upper and lower beams of the gate frame. Over time, dirt accumulates inside the sleeves, and in winter - frozen condensation, so periodic cleaning and purging of the fastening is required.
The gate performs two functions: security and decorative. So that she would guard the garden or country cottage area properly, she needs reliable constipation. This could be a regular deadbolt, or some other locking device. You can buy it in the store household goods or make it yourself.
Design of a simple deadbolt for a gate
Gate locks can be divided into several types. Among them there are devices that almost every householder can make. He always has simple power tools available, which he picks up from time to time. You will find an angle grinder, a drill, a screwdriver, a set of drills and much more. Even get welding machine no problem for him. And for these purposes he uses the material at hand, which was left after any construction or repair.
Names of locking elements for gates
The simplest devices that do not require the use of keys:
Locking turntables for gates are not sold; they are knocked down with your own hands. For this you need wooden beam, which is attached to the supporting wicket post with a through bolt. When it is turned vertically, parallel to the support, the door opens freely. And if it is located horizontally, the entrance is closed. It is not visible from the outside, and it is almost impossible to turn it from there.
A homemade turntable is not used very often, rather to ensure that the free flap does not dangle in the wind. Over time, the bolted fastening becomes loose, and the crossbar of the device does not hold in the specified position. 
Then a spring is inserted between it and the support post and the problem is solved. The same age as the turntable in Rus' is the gate latch. It is installed from the inside, but it is impossible to open it from the street. They come in a wide variety. For example, those that work on the principle of a lever: one arm, under the weight of its weight, falls into the latch and the system automatically locks. From that side you can only open it by pulling the string, which, as a rule, is not visible at all.
A latch is often placed on the gate as a safety net, to complement the device that can only be used to lock the entrance from the outside. Its installation is simple, and its convenience is that in case extreme situation, for example, a fire, it opens very easily.
To fix the gate leaf, summer residents often use an ordinary hook with a bracket to latch it. It is very easy and simple to make and install. 
Take a wire of the required length so that it bends and does not break, heat it over a fire or gas stove, and use pliers to give it the desired shape. Then the product is hardened by immersing it in cold water. The bracket is made using the same technology.
As a locking device, you can use a latch, a bolt shaped like a window or door latch. It can be freely purchased at any hardware store at a low price. Therefore, as a rule, no one is in a hurry to do it with their own hands. It is convenient on a wicket door built into the gate leaf. Can be locked from top and bottom.
But if the door moves away, does not fit tightly and there is a backlash, then the use of such a device will become impossible. The metal rod will not be above the shut-off hole. Vertical overhead is often used for fixing. But it is quite suitable as a gate lock.
Scheme of operation of an overhead gate valve
Install on flat surface at the bottom of the door in the form of a metal rod with a handle or curved in the shape of an “G”. Fixed in the recess concrete base or in a reinforced section of pipe. The rod is used long, and it must be immersed deep enough to ensure the safety and strength of the structure.
The recess is made using a garden drill of the appropriate diameter. A piece is strengthened in it metal pipe such a diameter that the locking valve fits freely. For ease of use, a handle is welded to it, and a hook is welded to the side post, on which the bolt will rest when open. When closed, it securely keeps the door locked and is not visible from the street.
To open it with reverse side, some owners try to make various disguised wire or rope devices. The horizontal overhead deadbolt works on the same principle.
Option for installing an overhead lock on a gate
It is only manufactured in smaller sizes, and unlike a vertical valve, it is installed perpendicular to the rack. It comes in the form of a flat metal plate or a round rod. Has been used for centuries. Its design is simple: a shell-holder, a movable rod, a flat one with a loop-pocket, and a round one with a fixing eyelet. Each owner can also make it with his own hands and using ordinary household tools.
Latches are also used to lock the wicket door. They are different, but the principle of their operation is the same. When the sash closes, the bolt lowers into the locking device under its own weight. It opens easily from the inside, and in order to lift the locking device, you will need a string or wire attached to it.
Spring-based latches are widely used and are installed from the inside in addition to locks.
Diagram with spring latch dimensions
Their locking rod is retracted manually and returned to the locking position using a spring. They are used for constipation when everyone is at home and no one has to open the entrance from the outside. In other cases, as well as at night, the door is locked with a key.
In addition to the simplest locking mechanisms listed, some summer residents and owners personal plots They are trying to make their own secret devices that prevent free entry into the protected area.
An example of a homemade simple lock for a gate
They often invent homemade constipations, which are difficult for the uninitiated to guess. There are no locks or holes for insert keys on the door leaf, and it is impossible to open it from the street.
It turns out that there is a valve from the inside, but it closes from the outside. In the total mass of screws located on the street side, a hexagonal furniture bolt was lost. It passes right through the sash and rotates freely. From the yard, a metal plate is welded perpendicular to it, which, when turned, blocks or releases the entrance door.
These include:
Padlocks are a legacy of the past. Today they are rarely hung on gates, almost when the territory is visited not so often, and there are no expensive things in the buildings. After all, such a security device is very easy to hack using a lever method or using a simple wire pick. Its only advantage is its ease of installation: it is enough to weld two eyes for the shackle, one on metal frame door, and the other on the support post, and the installation is ready. An indispensable companion of such protection is a latch on the inside.
The screw valve is easy to install and use. It is installed on the outside of the gate.
This is what a screw bolt for a gate looks like
Home it component– rod with helical thread. Using a special key, it is screwed into the recess of the locking base, for which there must be enough space between the wicket frame and the support post. This locking system is not widely used due to its low practicality in operation.
It is very difficult to make a deadbolt lock based on a rack system with your own hands. Tools, an appropriate machine and professional skills are required. Some devices of this type are equipped with a crab locking system. When you turn the key, the lock tongues engage, which is located on the gate leaf. This lock is reliable and easy to use.
Rim locks require sufficient thickness gate door, as well as a flat area for its installation. The structure is attached directly to the door so that it can only be opened from the outside with a key, and from the inside with a latch.
Elements of a padlock for a gate
They have become widespread. To install them, a recess in the wicket base is required. But not every material from which gates are made allows this to be done. Then some users weld a strong metal box, inside which a mortise locking device will be installed. Today, coded locking mechanisms are popular, which can be overhead or hinged. In addition to the body and bolt, they are equipped with locking elements, sliders, and code mechanisms.
They are put into operation by drawing up a pre-entered digital code, which is typed by the user himself. The way the numbers are arranged can be different, and their combination, for the sake of reliability, can be changed at your own discretion.
Combination rim locks work by selecting the desired arrangement of numbers located on rotating dials. 
Their number is usually from two to six, which allows you to dial a long code. It will take a burglar a lot of time to find the right combination. There are also suspension mechanisms, in which the numbers are located on rotating wheels inside the lock body. Only the numbers for dialing the secret number are visible.
