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Lift Chair Lift Device

The lifting chair is a new type of chair which is mainly composed of a seat plate, a backrest, a bracket, a bracket rocker, a lifting positioning device and a chair foot, characterized in that the bracket and the chair are hinged between the bracket rocker, The rocker arm is hinged to the hinge shaft of the chair chair to rotate up and down as the hinge shaft, and when the bracket is rocking the arm, the bracket is lifted and lowered to realize the lifting and lowering of the seat plate. Lifting Chair In addition, a lifting and positioning device is arranged between the bracket and the chair foot.

Advantages of lift chairs

(1) seat plate can be raised and lowered to meet the different height of the people sitting or standing use.

(2) with lifting positioning device, Lifting Chair can be located at various altitudes.

(3) seat plate can be turned up and down angle adjustment, suitable for users to read, write, painting, Lifting Chair design and other needs.

(4) reasonable structure, easy to use, simple operation, suitable for schools, families, offices, studios and other occasions to use, beneficial to the human eye and spine health, is conducive to improving learning and work efficiency.

At present, the lifting platform on the market using the lifting device is divided into three categories --- hydraulic, mechanical and air pressure. In the low-end lift chair to the majority of air pressure. Pneumatic lift chair has a cylinder, the cylinder piston rods up and down movement control chair movements, regular manufacturers are filled with nitrogen, the concentration is generally more than 99%, Lifting Chair the pressure in about one or two atmospheric pressure.

The lift part has the following features:

When the lift valve switch is pressed:

People sit up, that is, to lift the shaft pressure, the lift shaft to gently decline, the speed is uniform, can be reduced to the lowest point.

Do not give the lift shaft external force, lift shaft immediately bounce back to the highest point, Lifting Chair the speed is slightly faster, less than a second.

Not press (or press the middle of the release) when the valve switch:

The lift shaft is held in its current position and neither compression nor stretching can move it relative to the outer sleeve.

First understand the simpler freestyle gas spring:

The freestyle air spring is simple and consists of three components: a closed cylinder, a piston in the cylinder, and a piston rod that extends outside. Cylinder inside the air pressure than the outside of the atmospheric pressure to the cylinder inside the piston on both sides of a small hole connected. According to the knowledge of secondary physics, if the pressure in the piston rod, then the resistance is constant, that is, both ends of the piston rod air pressure difference.

Self-locking is a free-style piston rod inside a shaft, the shaft inside the other end of the door attached to the valve, the valve to control the piston part of the communication hole. Lifting Chair When the valve is pressed when the communication hole has, is equivalent to a free; valve bounce when the Unicom hole is not, it will lock.

Here: the cylinder is our outer sleeve; the piston is our lifting shaft; the piston shaft is our valve button switch.

So the chair is not sitting when the pressure in the sleeve is basically constant (do not know the cylinder which generally have several atmospheric pressure, if the pressure is large, in fact, is a small grenade, but from the online case Look, as a metaphor, then most of the grenade shell is more solid burst, Lifting Chair the wicker handle to the top out).