Maintenance methods and development process of the lift bar chairs

Lifting bar stools believe that no one is unfamiliar, everyone should have sat. So how much do you know about the maintenance method and development process of the lift bar chair? The next is some introduction.

Here is the content list:

• Maintenance method

• Development process

Maintenance method

First of all, the lift bar chair upside down on the ground, use a screwdriver to remove the four screws on the seat plate, so that the seat plate and the base can be separated.

Secondly, grab the fixed iron plate and lift, and then knock down the chassis with a hammer, after the fixed iron plate as well as the chassis completely disassembled the base plate upside down, and then pry off the middle of the chassis with a screwdriver, grab the lifter and gently lift, at which point the lifter and chassis are completely separated.

Then check the lifting device is pneumatic or hydraulic, if it is a pneumatic lift bar chair, there is a cylinder device between its chair and chassis, we need to check whether the cylinder device is damaged if damaged to buy a new cylinder replacement part promptly. If it is a hydraulic lift bar stool, we need to check whether the hydraulic rod has been leaking oil, if the oil leakage, the oil patch is useless, to replace the new hydraulic rod in time, or there will be a certain safety hazard.

Development process

Free type gas spring

The free-form gas spring is relatively simple and consists of three parts: a closed cylinder, a piston inside the cylinder, and a piston rod that extends to the outside. The air pressure inside the cylinder is greater than the atmospheric pressure outside, and there are small holes connected to the piston on both sides of the cylinder. According to the knowledge of secondary school physics, if the piston rod is pressed inward, then the resistance is constant, which is the difference in air pressure between the two ends of the piston rod. The self-locking type is the free type of piston rod inside the addition of a shaft, the innermost end of the shaft is connected to the valve, the valve to control the piston part of the coupling hole. When the valve is pressed, the coupling hole is there, which is equivalent to a free type; when the valve is popped up, the coupling hole is not there, and it will be locked.

The realization of the adjustment function

The adjustable function of the gas pressure lift barstool is achieved by the gas spring component in it. Gas spring is a gas and liquid as the working medium, can play support, cushioning, braking, height adjustment, angle adjustment, and other functions of the elastic element, consisting of the pressure tube, piston, piston rod, and several couplings. The working principle of gas lift bar chair is to press inert gas, such as nitrogen, into the closed chamber, so that the pressure in the chamber is greater than atmospheric pressure, the use of pressure differences to achieve the movement of the piston rod, to achieve the role of adjusting the seat.

Hydraulic lift chair

Hydraulic lift bar chairs are mostly used for special occasions such as barber chairs, the use of a third party outside the user needs to apply a driving force to achieve the lifting function of the chair. Hydraulic lifting mechanism that is the principle of hydraulic jack. Due to the cost of a hydraulic lift bar chair, the structure is relatively complex, and height adjustment is not sensitive enough, the market share in the domestic market is low.

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