The door closer is installed on the door. Its function is to close the door automatically when the door is opened. Its characteristic is that it can accurately close the door to the initial position. Door closers are widely used in our lives. It is mainly used in commercial and public buildings, but also in domestic use. Its biggest function is to close the door tightly in case of fire, so as to prevent the spread of fire. In this issue, let's take a look at the installation and precautions of the door closer.

There are five ways to install the door closer, and the installation method is different depending on the door.

1. Standard installation

2. Upper door frame installation

3. Parallel installation

4. Hidden installation

5. Slide rail installation

1. Standard installation

The body of the door closer is installed on the side of the sliding door, and the support arm is installed on the door frame. This installation method is suitable for the narrow door frame and there is not enough space to install the door closer. This installation method is also applicable when there is no obstacle in the door opening direction and the door is opened to a large enough angle, and the door closer will not hit foreign objects.

2. Upper door frame installation

The door closer is installed on the push door side, and the support arm is installed on the door. This installation method is suitable for wide door frame, there is enough space to install the door closer. Compared with the standard installation, this installation method is suitable for obstacles such as walls in the door opening direction. Compared with the standard installation, this installation method has a higher closing force and is suitable for larger and heavier doors.

3. Parallel installation

The door closer is installed on the push door side, and the parallel plate is installed on the door frame. This installation method is suitable for very narrow door frames, or there is almost no door frame. After you install it in this way, it will be more beautiful because there are no protruding connecting rods and rocker arms. Compared with the standard installation, this installation is suitable for obstacles such as walls in the direction of door opening.

Compared with standard installation, parallel installation is suitable for small closing force, and there are obstacles such as walls in the door opening direction.

4. Hidden installation

This installation method is the same as the slide rail installation of concealed door closers. After installed in this way, the door has no exposed parts in the closed state, so it is the most beautiful. This installation method is the most complicated, and it is best to require a professional to install it. This installation method requires a larger gap with the door frame, generally 10MM (or remove the material on the upper part of the door during installation to increase the gap). The thickness of the door exceeds 42MM.

5. Slide rail installation

Compared with the previous methods, it is mainly to install the equipment on the door, and the slide rail is on the door frame, which is suitable for places with small door closing force, and because there are no protruding connecting rods and rocker arms, the aesthetics are high.

Door closer classification

1. External door closer

2. Built-in top door closer

3. Door Bottom Spring Door Closer

4. Floor spring door closer (floor door closer)

1. External door closer

The external door closer is equipped with a hydraulic buffer oil pump device, which can automatically close the door after opening. Its main feature is that the speed of the door is slow when closing, and there is no collision sound after closing. It can be used on the gates of schools, hospitals, office buildings and hotels.

1. The exterior-mounted top door closer is not suitable for two-way opening doors.

2. The speed adjustment screw controls the opening and closing speed of the door. Clockwise is slow, counterclockwise is fast.

3. The door closer should be filled with antifreeze oil after one year of use. When refueling, unscrew the oil hole screw to refuel, and tighten the screw after the oil is full.

4. The rest of the screws and sealing parts cannot be twisted at will to prevent oil leakage. the

2. Built-in top door closer

The embedded door top spring is composed of a hydraulic buffer spring installed on the door leaf, a slideway, a slider and a link installed on the door frame. Since the built-in top door closer is installed in the groove of the door leaf and the door frame, it does not affect the appearance of the door when the door is closed. It is suitable for the door of high-end hotel rooms.

3. Door Bottom Spring Door Closer

The door bottom spring, or automatic door bow, is divided into two types: horizontal and straight. The door bottom spring consists of upper and lower parts. The upper part is the top shaft and the top shaft cover plate, and the lower part is the bottom shaft and the spring main body. Its function is equivalent to a double spring hinge, which can make the door leaf automatically close after opening. When the door leaf does not need to be closed automatically, just open the door leaf to 90°. The door bottom spring can be used on a spring wooden door or a door that can be opened both inside and outside.

4. Floor spring door closer (floor door closer)

The floor spring is composed of upper and lower parts. Its upper structure is the top shaft and the top shaft cover plate, and the lower structure is the rotary shaft and the base. The floor spring can not only make the door leaf close automatically, run smoothly and without noise, but also can adjust the speed of door leaf automatic closing. When the opening angle of the door leaf is less than 90°, the door and window can be automatically closed in both directions inside and outside; when the door leaf is opened to 90°, the door leaf can be fixed. This kind of floor spring can keep the door leaf beautiful because the main structure is buried in the ground. On the doors of higher buildings.

Frequently asked questions about door closer installation

Problem 1: The door leaf cannot be positioned

Problem 2: The door leaf cannot be opened

Problem 3: The door does not open or close properly

Problem 1: The door leaf cannot be positioned

Solution:

1. Check whether the power supply has 24v voltage input

2. Check whether the polarity of the power supply is reversed and whether the switch is turned on

Problem 2: The door leaf cannot be opened

Solution:

1. Check whether the connecting rod screw of the linkage door closer blocks the door leaf

2. Check whether the door closer is installed backwards.

Problem 3: The door does not open or close properly

Solution:

1. Check whether the installation of the door closer is in place and whether it is tilted

2. Check whether the installation angle of the connecting rod is correct

3. Check whether the lock tongue in the chute is too tight, and add lubricant to adjust.

Author:Written by Ms.Rebecca Fu from S4A INDUSTRIAL CO.,LIMITED