How to install indoor door lock?

First, determine the direction of opening the door.

Before installing the door lock, we can't ignore the direction of opening the door, which determines which side we will install the lock when installing the door lock. Generally, the side where the hinge is located is the direction of opening the door. Therefore, installing a door lock on the side of the door where the hinge is not installed can ensure the correct direction of the door lock. Simply put, the locked side is indoor and the key inserted side is outdoor.

Second, the door lock installation steps

First, according to the required height of the lock, punch a hole at an appropriate position, and the size of the hole should match the lock body.

Step 2: Install the lock body into the hole, straighten it and tighten the two tapping screws.

Step 3, insert the square bar into the hole of the square bar, install the external handle parts, align them, and then tighten the two self-tapping screws.

Step 4, install the inner handle of the lock, and after the same alignment, tighten the two self-tapping screws.

Step 5, insert the one-way lock head into the lock hole from the inside of the handle side.

Step 6: Insert M5 set screw from the hole of the lock head panel, then align the one-way lock head with M5 threaded hole, and then tighten it.

Third, the solution of oblique tongue

Of course, in the actual installation in indoor door lock, it is not excluded that it will be installed in the wrong direction. If it is found that the tongue of the lock is opposite to the opening direction of the door, the following steps are needed. First, pull out the stop plate of the inclined tongue, and push the inclined tongue into the adjusting hole of the inclined tongue by hand. Then rotate the tongue 180 and loosen it.

When installing the door lock, there will be other problems that cannot be solved. Might as well find a shop selling hardware and building materials such as door locks, and telephone or in-store consultation can be solved.

Extended data:

Precautions for installation:

First, confirm whether the opening and closing direction of the door is consistent with the lock, and determine the installation height of the door lock.

Second, read the installation instructions and opening drawings of the door lock carefully, and check whether the distance from the door frame to the center of the handle is 70mm, and whether the thickness of the door is between 40 mm and 55 mm, and then dig.

3. Stick the paper gauge of the door lock mounting hole on the door, determine the position and size of the hole, and use tools to open the mounting hole on the door.

Four, after opening the hole, use the actual door lock to test whether it is appropriate, and pay attention to check whether there is a small groove in the oblique tongue part.

Five, after opening the keyhole, be sure to clean up the sawdust inside, and then insert the lock liner into the lock liner hole to test whether the size and tightness of the hole are appropriate. Opening the lock cylinder is the most important link in door lock installation. If the hole position is not well opened, it will affect the performance of the whole lock. After installation, be sure to test the inclined tongue from different directions to check whether the inclined tongue can pop up normally.