Gazlift for the chair: the device and the principle of operation

Advantages of office chairs are impossibleto overestimate. Only they can provide us with maximum comfort while working on the 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, since 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 andwheels and is a long metal pipe, covered with plastic. Externally, it resembles the mechanism of tilting the body of a dumper. In fact, their principle of operation is the same, although only its dimensions differ significantly from dump mechanisms in the smaller direction. Often a gas lift for an armchair has in its construction a pneumatic cartridge in the size of 13-16 centimeters (depending on the type of the chair itself). How big will this value be, so much higher he can lift the chair.

Principle of operation and device

And now more in detail about how thegas lift 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 plating, 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 resides 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, from the reservoir of the first chamberthe gas enters the second one, as a result of which 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 needs 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 is impossiblerestore it in some 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.