The pneumatic lift chair has a cylinder, the cylinder piston pneumatic rod up and down movement dominated by the chair lift, regular manufacturers are using nitrogen filling, the concentration is generally more than 99%, the pressure in one or two atmospheres or so.
Lift chair is a general call, refers to the chair height adjustable up and down, the chair can be turned horizontally swivel chair, people usually also use the rotating lift chair, swivel chair, computer chair, office chair and other names to call it.
Because of the chair surface of this seat has a height-adjustable lifting device under the chair surface, so the chair surface can be lifted up and down. According to whether the lifting device used is pneumatic or hydraulic, the lift chair is divided into two types: pneumatic lift chair and hydraulic lift chair.
Extended information
Pneumatic lift chair notes:
1, be sure to buy a regular manufacturer of lift chairs, do not want to buy low-quality goods cheap;
2, the chair is in use, do not repeatedly lifting;
3, if you are not professionals, do not dismantle the cylinders, and do not let the chair close to too hot, such as a grill or oven;
3, if not professionals, do not dismantle the cylinder, and do not let the chair close to too hot, for example Fireplace or oven;
4, after using a period of time, you should let the professionals check in time, once found cracks, signs of loosening, should be promptly repaired and replaced.
Baidu Encyclopedia - Pneumatic Lift Chair
When the pneumatic lift chair is lowered to the lowest, the internal air pressure is big? Or when it rises to the highest, the internal air pressure is large? How to adjust the safest?
The lowest pressure when the air pressure is large, the adjustment method is recommended in accordance with the instructions to adjust the method.
Pneumatic lift chair is a new type of chair, lift the chair inside a cylinder, the piston rod inside the cylinder up and down movement dominant swivel chair lift. Pneumatic rod filled with nitrogen, the general purity of the gas is less than 90% of the potential safety hazards, and the pneumatic rod sealing is not tight also easy to lead to the gas burst, in addition to the pneumatic rod itself is also very critical, if the use of substandard materials may also lead to an explosion.
Lift chair is a general call, refers to the chair height adjustable up and down, the chair can be turned horizontally rotating swivel chair, people usually also use the rotating lift chair, swivel chairs, computer chairs, office chairs and other names to call it. As this chair has a lift device for height adjustment under the chair surface, the chair surface can be lifted up and down. According to whether the lifting device used is pneumatic or hydraulic, the lift chair is divided into pneumatic lift chair and hydraulic lift chair two kinds. Due to the expensive cost of hydraulic lift chair, the structure is relatively complex, and the height adjustment is not sensitive enough, in the domestic market share is low.
And the pneumatic lift chair has a low cost, simple structure, flexible operation and other characteristics, so widely welcomed by consumers. It is estimated that more than 80% of office buildings and companies are using pneumatic lift chairs. With the popularity of personal computers, gas pressure lift chairs have also begun to be used by many families as computer chairs. And it is this pneumatic structure of the lift chair that has caused many injuries. There is a cylinder between the chair surface and the chassis of a gas pressure lift chair. If the use of substandard materials or manufacturing process problems, may also cause the gas pressure lifting device is not strong enough, resulting in gas leakage or cause an explosion.
How to lower the lift chair?
The more common lift chairs on the market are pneumatic, spiral, lift chairs in the use of the process according to the type of styles, materials, structure and other differences, making the lift chair down method is different.
Pneumatic lift chair: a new type of chair, the internal device has a cylinder, the cylinder piston rod up and down movement dominated by swivel chair lift. Pneumatic rod filled with nitrogen, but if the purity of the gas is less than 90% of the lift chair in the use of the process there may be safety hazards, pneumatic rod sealing is not tight will also lead to gas burst out. Lift the chair down when you need to sit on the chair and then lift up the lower part of the chair surface lever, the use of body weight can easily realize the decline.
2. Free-type gas spring lift chair: relatively simple in structure by the closed cylinder, the cylinder piston, reaching outside the piston rod composition. Cylinder air pressure compared to the outside is much larger, the cylinder piston on both sides of a small hole connected. According to secondary school physics knowledge, inward pressure on the piston rod, the resistance is constant. At this time only need to dominant rod up and down movement can be easily realized on the lift chair up and down mobilization.
References
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Hydraulic lift chair and pneumatic lift chair how to differentiate
1, classification is different
Hydraulic chair, also known as hydraulic chair, usually refers to the use of hydraulic pumps and has the height of the chair lift, rotation and other functions.
Pneumatic lift chair is a new type of chair, lift the chair inside a cylinder, the piston rod inside the cylinder up and down movement dominated by the swivel chair lift.
2, the working principle is different
Pneumatic lift chair is filled with nitrogen within the gas pressure rod, the general gas purity is less than 90% may be a potential safety hazard, and the gas pressure rod is not sealed tightly also easy to lead to the gas out, in addition to the material of the gas pressure rod itself is very critical, if the use of unqualified materials may also lead to an explosion.
The hydraulic oil inside the hydraulic pump of the hydraulic chair is incompressible, so the gas pressure rises fast and the hydraulic pressure rises slowly.
3, different features
Pneumatic lift chair chair surface and chassis between a cylinder, the cylinder is filled with 1 to 2 atmospheric pressure of nitrogen, and sealed with a seal, the piston rod in the cylinder under pressure can be moved up and down, and the seat of the adjustable handle with the chair to achieve the lift function.
The hydraulic chair is most commonly used in hairdressing salons, hair salons, medical hairdressing and other places because of its lifting and rotating functions, and also used in offices, salons, bars and so on.
Baidu Encyclopedia - Hydraulic Chair
Baidu Encyclopedia - Pneumatic Lift Chair
Pneumatic chair should be thrown where
Can be placed on the terrace
Pneumatic lift chairs have a low cost, simple structure, flexible operation and so on, so it is widely used in the office building as well as the family, so how do you lower the pneumatic lift chair?
Pneumatic lift chair chair and chassis between a cylinder, the cylinder is filled with 1 ~ 2 atmospheric pressure of nitrogen, and the use of seals to seal it, so that the piston rod in the cylinder, it will be under pressure to move up and down, and then with the seat of the adjustable handle to match, you can realize the chair's lifting function
Pneumatic chair in the end is the highest when the most secure or the lowest most secure? The most important thing is that the chair is safe to use.
Pneumatic chairs are safest at the lowest point.
Theoretically, the cylinder should be filled with nitrogen and other inert gases, when the human body sits on the chair, through the piston rod to the piston pressure, the piston and then the cylinder gas pressure. The gas is compressed by the pressure, the height of the chair will fall, and the opposite will rise.
Down to the lowest when the gas pressure is big because, rise is automatically rise, right, is the internal gas pressure top up. Rise to the highest when the cylinder volume is the largest, the internal gas quality must be, is sealed, the larger the cylinder volume, the lower the pressure, so the lowest when the air pressure is the smallest.
When the chair is raised, the gas in the upper part, added to the pressure of the human body compressed air, it is very dangerous, and placed on the lowest side of the human body weight will not be compressed air is the safest. Lower the safest.
Safety tips:
1, to choose the regular manufacturers of products. Purchase products with qualified signs, do not buy cheap inferior goods.
2, the purchase of swivel chairs, first look at the swivel chair's plastic base plate sturdy, and then slide back and forth to the swivel chair, good quality swivel chairs rotate more flexible, will not appear tilted.
3, the chair in use, do not repeatedly rotate lift. After a period of time, you should check in time, once found cracks, signs of loosening, should be timely maintenance and replacement.
4, weight more than 100 kilograms cautious sit.