Recall that most chairs explode with lifting function. Think about this kind of chair that will explode all the time in my office. Because it has lifting function and is filled with nitrogen, it will suddenly explode if the quality is not up to standard. Worst of all, it will blow through the owner's lower body. Fortunately, some people just left the chair and exploded. The steel column went straight to the ceiling and blew a big hole in the upstairs floor!
Detailed explanation of the explosion cause of swivel chair
There are two reasons for the explosion of the chair: first, the purity of nitrogen in the pneumatic rod is insufficient, which may lead to explosion in high temperature environment or too frequent friction; Secondly, the container wall of the pneumatic rod is not strong enough or the material is poor, which may cause explosion; The third situation is that the seal is not tight, which leads to the gas bursting out. It is suggested that you must choose regular products through regular channels to protect your legitimate rights and interests.
The chair exploded because the pipe wall of the pneumatic rod was too thin, and the base of the chair was rough. Usually, when sitting, it moved up and down, and there was friction back and forth, forming an incision, which itself was very thin, and the friction formed a weak mouth, which naturally exploded for a long time. Xiao Bian thinks that the chair should not explode, either increase the thickness of the pipe wall or improve the design of the bottom of the chair. There should be an improvement in both, and the probability of explosion will be very low. If both are improved at the same time, the probability of explosion can almost be reduced to zero.
The swivel chair can rise and fall because there is a pneumatic rod in the lifting device. The pneumatic rod is an elastic element that uses gas and liquid as working media and can play the functions of supporting, buffering, braking, height adjustment and angle adjustment. Its basic principle is that the inside is filled with high-pressure nitrogen. Because there is a through hole in the piston, the gas pressure at both ends of the piston is equal, but the cross-sectional areas at both sides of the piston are different. Under the action of gas pressure, It produces pressure to the side with small cross-sectional area, that is, the elasticity of the air pressure bar. When people sit on it and put pressure on the lifting shaft, the lifting shaft descends gently, and the speed is even, which can reach the lowest point. No external force is applied to the lifting shaft, and the lifting shaft rises back to the highest point. This kind of gas spring can stop at any position in the stroke with the help of the release device, and it has a great locking force (which can reach more than 10000N) after stopping.
After reading these reports, do you think that the chair you are sitting in is like a time bomb, which will explode at any time, without worrying about Xiaobian to tell you the explosion-proof tips of the chair explosion:
1, depending on the price, the price of swivel chairs produced by regular brand enterprises is basically above that of 200 yuan, and the quality of swivel chairs below 100 yuan cannot be guaranteed.
2. It depends on whether the pneumatic rod can rise and fall smoothly.
That's all for the detailed explanation of the cause of the explosion of the swivel chair. The explosion of the chair is due to the thin wall of the pneumatic rod and the rough base of the chair. When sitting, it moves up and down, and there is friction back and forth, forming an incision, which is very thin in itself. Coupled with the friction to form a weak mouth, it naturally explodes for a long time. Xiao Bian thinks that the chair should not explode, either increase the thickness of the pipe wall or improve the design of the bottom of the chair. There should be an improvement in both, and the probability of explosion will be very low. If both are improved at the same time, the probability of explosion can almost be reduced to zero.
I hope it helps you.
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