The Working Principle And Function Of The Door Closer

The door closer is a similar taut spring hydraulic device, when you manually push the door open, the door closer in the taut spring is compressed storage energy, and then after the taut spring release taut spring, the closing force through the door closer rocker arm transfer to the door, in the case of no external force, the initiative to close the door. The cylinder where the taut spring itself is a finely designed hydraulic system, which encloses the hydraulic oil, through the hydraulic system we can well control the door closer to achieve a variety of conditioning, to meet the needs of people.

Here's a question: do you know what a door closer is?

Perhaps you will be smart to point to the door closer on the door confidently answer my question, indeed this question did not test you, but do not be happy too early, next I will ask: this small thing mounted on the top of the door with what can make the door easily closed? Is there electricity to support its work? I'm afraid this is not the case.

Now let me open the mystery to you, the door closer is actually a mechanical device, it can close the door through the principle of the mechanical initiative. The door closer is a hydraulic device similar to a taut spring, when you manually push the door open, the door closer in the taut spring is compressed storage energy, and then after the taut spring release taut spring, the closing force through the door closer swing arm to the door, in the case of no external force, the initiative to close the door. And the cylinder where the taut spring itself is a finely designed hydraulic system, which encloses the hydraulic oil, through this hydraulic system, we can well manipulate the door closer to achieve a variety of conditioning, to meet people's needs.

The surface is simple, clean silver finish and rocker and cylinder, but in fact, the door closer is not as simple as we seem. The internal structure of the door closer is ready to work, stable operation of the hidden world, its internal by with rack and pinion piston, taut spring, oil control valve, ball, oil circuit and fill the hydraulic oil and other components, the overall use of the airtight design so that the hydraulic oil is not possible to leak. How do these complicated little things cooperate with each other? Then let's go through the pictures to see the internal structure of the cylinder, which is the engine of the door closer.

Armed with the above knowledge, you will be able to convey these to your friends, but the secret of the door closer can be more than that, in addition to the role of the basic active closing, select different door closers have different adjustment options and special functions:

1.the closing speed adjustable: the door closed track is a 90-degree arc, the closing speed can be adjusted to the area generally in the door open to 10 degrees to 90 degrees of the scale.

2. locking speed adjustable

You see the door in the closed more after 0-10 degrees of the region. The speed of closing the door in this area is known as the upper locking speed. Door closers with adjustable locking speed have a locking speed adjustment valve, after adjusting the valve, it allows you to adjust the closing speed, to ensure that any latch can enter the latch plate to complete the locking action.

3.Opening buffer function

High-level door closers generally have a buffer function to open the door, so that when the door force is too large, will not be too fast to open the door to hit the adjacent wall.

4.Delay function

The delay function makes the door closer will not immediately close the door actively. For example, when you push a cart or bulky objects through the door, the door body can be delayed for a few seconds before reverting to the normal closing speed, which can be more convenient for people to pass through, compared to most doors 5 - 10 seconds of normal closing time, the door closer longer can be adjusted to delay two minutes or more.

5.stop the door function

This may seem and closers require active door closing contradictions. But the choice of this function on some occasions may be useful, such as in the loading area needs at a certain time to keep the door open temporarily, etc. When we set the stopping point, the door will stop when the door opens to a specific point, and when it is exceeded by human power, the door will be closed again. But please note that the door closers with stop function are stopped in the fire door!

6 .force level adjustable

The force level of the door closer determines the applicable door width and weight, the current market closers are generally through the adjustment of the length of the taut spring, installation orientation adjustment to adjust the force level. Generally have 1 to 6 force, the greater the force level can be applied to the wider and heavier the door. A door closer to the market is a fixed force level of the door closer. Such as fixed force level 3 or force level 4. This means that they are fixed to fit doors of a certain width. Another type of door closer is a force level adjustable door closer for a range of door widths, such as a force 2 to force 4 adjustable doors closer.

Now when you read the above about the principle of door closers and the various functions of the introduction, you are already a door closer related people! But knowledge never ends, why don't you suggest you investigate and feel the operation of door closers yourself.