How does the chair lift go down? What is the method of adjusting the height of the chair by rotating the chair lift

The method of rotating the lifting chair to adjust the height: 1, find the handle on the support rod of the office chair; 2. Sit in an office chair or press down hard on an office chair; 3. Lift the handle up to lower it. Lift chair is a new type of chair, it is mainly composed of seat plate, backrest, bracket, bracket rocker arm, lifting positioning device and chair foot. The more common chairlifts on the market are pneumatic and spiral.

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Pneumatic chair lift: is a new type of chair, the internal device has a cylinder, cylinder piston rod up and down motion control chair lift. The pressure rod is filled with nitrogen, but if the gas purity is less than 90%, there may be safety risks during the use of the chairlift, and the seal of the pressure rod will also lead to the gas burst out, (be sure to buy qualified chairlift, pay attention to the safe use). When the chairlift goes down, the person needs to sit on the chair and then lift the joystick at the bottom of the chair, which can be easily lowered by using the body weight.

Freestyle air spring lifting chair: relatively simple in structure by closed cylinder, cylinder piston, extended to the outside piston rod composition. The pressure in the cylinder is much larger than that outside, and there are small holes on both sides of the piston in the cylinder. According to the knowledge of high school physics, pressure piston rod inward, the resistance is constant. At this time, you only need to move up and down the control rod can easily achieve the up and down mobilization of the chair lift.

Lift chair so can lift, because there is a pneumatic bar in the lifting device, the pneumatic bar is a gas and liquid as the working medium, can support, buffer, braking, height adjustment and Angle adjustment functions of the elastic element, the basic principle is the internal filled with high pressure nitrogen, because the piston is provided with a through hole, the piston at both ends of the gas pressure is equal, The cross-sectional area on both sides of the piston is different. One end is connected with the piston rod while the other end is not. Under the action of gas pressure, the pressure to the side with small cross-sectional area is generated, that is, the elastic force of the pressure bar. Without external force to the lifting shaft, the lifting shaft rises back to the highest point.