Homeliness, Furniture
Gazlift for the chair: the device and the principle of operation
The advantages of office chairs can not be overestimated. Only they can provide us with maximum comfort while working on a computer for a long time. And all because the details of the chair can be set with the most optimal bias for its anatomical features. The inclination of the handrails, the back, the height of the chair ... Stop. But at the last moment, we would like to dwell in more detail. Probably, each of us thought about how to adjust the height of the chair. Today you have the opportunity to solve this riddle, because now we will take a closer look at the mechanism for the gaslift chair and learn the principle of its operation.
Design
This mechanism is located between the seat and the wheels and is a long metal pipe, covered with plastic on top. Externally, it resembles the mechanism of tilting the body of a dumper. In fact, their principle of operation is the same, however, only its dimensions differ significantly from dump mechanisms in the smaller direction. Often, the gas lift for the chair has in its design an air cartridge in the size of 13-16 centimeters (depending on the type of chair itself). How big will this value be, so higher he can lift the chair.
Principle of operation and device
And now more about how the gas lift works for the chair. At once we will notice that its principle of work is very easy in perception. And all his work is as follows. The steel case, which we can see under the plastic sheathing, contains a small cylinder inside. It has a rod with a piston, which provides lifting and descent of the entire structure. In the cylinder itself, as a rule, there are 2 reservoirs between which the valve is located, the driving gas lift for the chair. It can open or close, and the position of the rod will depend on the position in which it will be now.
If the seat is in the lowest position, the piston is in the upper part of the cylinder. When you need to lift it, by pressing the lever the piston presses on a special button, which opens the valve between the two chambers.
At the same time, gas enters the second chamber from the tank of the first chamber, so that the device starts to slowly lower. In this case, the seat itself rises. When the button is closed, the supply of gas to the tanks stops, so the stock freezes in a certain position. If the gas lift for the chair is to be lowered, when the additional load (your body weight) is applied and the lever located at this mechanism is pressed, the gas moves from the second chamber to the first one, and the piston rises. Thus, the seat again sinks down.
Is it possible to repair it?
Unfortunately, this mechanism can not be restored in any way. If the tank was damaged, replacing the gas lift in the chair is inevitable. It should be noted that the gas inside the device is under high pressure, so manufacturers strongly do not recommend opening this device, and even more so to beat it with a hammer.
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