In everyday life, whether it is home life or work, the chair is what we need to use. Along with other features to seek, lift chairs also will appear, especially barber shop is very common, some time before the chair lift ignited an explosion of news, many people are beginning very confused and very worried, here small lift takes you understand The working principle of the chair and the reason why the chair lift can explode .
How lift chairs work
1. The lifting of the chair lift is mainly realized by the lifting device at the lower part of the chair surface. The current lifting device is mainly divided into three types: hydraulic pressure, mechanical pressure and pneumatic pressure. Pneumatic chair lifts are the most common lift chairs, and there is a gas pressure bar in the air lift chair.
2. Gas pressure stick is an elastic element that uses gas and liquid as working medium and can function as support, buffer, brake, height adjustment, and angle adjustment. The basic principle is that the internal pressure is filled with high-pressure nitrogen, as it is inside the piston. With through hole.
3, the gas pressure at both ends of the piston is equal, and the cross-sectional area of ​​the two sides of the piston is different. One end is connected to the piston rod and the other end is not. Under the action of the gas pressure, the pressure on the side of the cross-sectional area is small, that is, the elasticity of the gas pressure rod , People sit up to lift the shaft pressure.
4. The elevating shaft descends smoothly and the speed is even, which can be reduced to the lowest point. Without lifting the external force of the lifting shaft, the lifting shaft rises back to the highest point. Regular manufacturers use nitrogen to fill, the concentration is generally above 99%, and the pressure is about one or two atmospheres.
Lifting chair explosion reason
First, nitrogen purity is insufficient. In a high-temperature environment or when the friction is too frequent, the temperature of the cylinder may escalate, the pressure may increase, and explosion may occur. Second, the cylinder wall is not strong enough or the material is poor, and explosion may occur. Sealing seals are not tight, causing gas to escape. Ou Yifeng furniture Xiao Bian learned that some black manufacturers to reduce costs, filled even high-pressure air, more likely to cause an explosion.
Do four points to avoid the explosion of the chair lift
The industry source said that although the explosion is a small probability event, the possibility still exists, which requires consumers to be vigilant to do the following four things:
1, be sure to buy a regular manufacturer of lift chairs, do not want to buy cheap goods;
2. When using the chair, do not lift it repeatedly;
3. If you are not a professional, do not open the cylinder, nor do you let the chair come close to something too hot, such as a roast stove or an oven;
4. After a period of use, professionals should be promptly inspected. Once cracks and loose signs are discovered, they should be promptly repaired and replaced.
The working principle of the chair lift Did you understand? As long as the purchase of qualified chair lifts produced by regular manufacturers is generally not an explosion problem, we should not worry too much. If you want to learn more about furniture, you can pay attention to GO Home Information Channel.
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