The more common types of chair lifts on the market are pneumatic type and spiral type. Depending on the style, material, and structure of the chair lift during use, the method of lowering the chair lift will be different. It is recommended that you try this:
1. Airlift chair: It is a new type of chair. The internal device has an air cylinder. The piston rod in the cylinder moves up and down to control the lifting of the swivel chair. The air pressure rod is filled with nitrogen, but if the gas purity is lower than 90%, the chair lift may cause safety hazards during use, and the air pressure rod is not tightly sealed, which will also cause the gas to burst. (Be sure to buy a qualified chair lift) . When the chair lift is lowered, a person needs to sit on the chair and then lift up the joystick at the lower part of the chair surface, and the lowering of the chair can be easily realized by using the weight of the body.
2. Freestyle gas spring lift chair: relatively simple in structure, composed of a closed cylinder, a piston in the cylinder, and a piston rod that extends outside. The air pressure in the cylinder is much larger than the outside, and there are small holes on both sides of the piston in the cylinder to communicate. According to the knowledge of physics in middle school, when the piston rod is pressed inward, the resistance is constant. At this time, the up and down movement of the chair lift can be easily realized by only moving the control rod up and down.