what to do if the key is broken in the door lock?

Posted by missaifahmed on December 29th, 2022

There are different ways to solve the problem and they depend only on the severity of the event.

Gentle ways to open the door without a key

In this case, to extract a broken key from the well, it is not necessary to destroy the lock mechanism or deform the door. Enough oil-containing liquids that need to process the inner surface of the castle. Vegetable oils are also suitable, the main thing here is to ensure a smooth sliding of the fragment. After lubrication, it will be more mobile, and it will be possible to get it with ordinary tweezers.

• Fine saw blade or jigsaw blade

The essence of the method is to place the canvas in the lock under the broken key with the sawing edge up. The further you push it, the larger the area of ​​​​adhesion with the debris will be. It must be inserted into the lock so that the slope of the teeth is away from the lock. Then, during the reverse movement, the teeth of the blade will pick up the key and pull it out.

• Self-tapping screw for metal

If the key is broken in the lock, it is wide enough in cross section, but it can be removed by screwing into the broken part of the self-tapping screw. First, a suitable metal screw is screwed into the hole drilled in it, and after it is securely fixed in the fragment, they are both removed from the lock using pliers.

• Inertia

If the key was turned to either side before the breakdown, you must first return the lock to the position that it occupied before the breakdown. Then, with hammer blows from the opposite side, set the key fragment in motion so that it moves outward under the influence of inertial forces until it appears from the opposite side so that it can be grabbed by tools.

Dismantling the lock - emergency opening of doors

If the previous methods did not help you, you should prepare for the worst, which means keeping in mind ways to eliminate the problem in radical ways. Since the desire to get into a closed room is primary, for the sake of this, the integrity of the castle will have to be sacrificed.

• Extraction of the larva

On both sides of the door, all decorative and / or protective panels, trims and other elements are removed. The lock cover is removed, if any. With a percussion tool, the larva is knocked out of the grooves. If it is difficult to access, an additional hand tool like a chisel is additionally used.

• Drilling out the larva

With a large-diameter drill, the lock cylinder is drilled out together with the foreign object in it, after which it is easily pushed out.

• Core loosening

The method is similar to that adopted by criminals using master keys. Needle, awl, hard wire, etc. is pushed into the well and actuates the pins holding the lock in the closed state. This option requires a certain skill and maximum concentration, since it is time consuming. It should be noted that the lock in 9 cases out of 10 will be broken.

• Twisting the maggot

With a pipe wrench, the larva is captured to the maximum possible area, after which it is rotated until the mortise latch is triggered.

• Removing the lock from the end

In the case when the door was first opened, and only then the key became unusable, the lock is simply removed from the door. In its end part, you must first unscrew the mounting fittings.