Is it safe to adjust the air pressure of the office chair to the lowest level?
It is safe to adjust the air pressure of the office chair to the lowest level. It should be known that after the air pressure of the office chair rises, all the internal air will be supported on the upper part, and at the same time, the pressure generated by the human body will be added, resulting in the compression of the air, which is very dangerous; and when the air pressure of the office chair is adjusted to the lowest When in position, the pressure generated by the weight of the human body will not cause much impact on the air, so it is the safest.
1. When we buy the air pressure of office chairs, it is the most critical place. We need to buy genuine high-quality products, and inferior products are best not to use. Generally speaking, the outer packaging of office chair air pressure will have a label. We need to see whether there is a mark of qualified product, and whether it is from a regular brand merchant. We must not buy inferior products for cheap.
2. If you are going to buy a chair that can be rotated, you need to check whether the plastic of the bottom plate of the chair is firm and firm, and slide the rotating chair back and forth to judge the quality of the chair through its performance. Under normal circumstances, a good-quality swivel chair is very flexible in the process of pushing and rotating, and there will be no tilting phenomenon.
Rules for using office chair air pressure
1. China formulated the QB/T2280-1996 "swivel chair" standard for metal seats in 1996, which was officially implemented on September 1, 1997. This standard specifies the terms, classification, basic technical requirements, inspection and test methods of swivel chairs. However, the currently widely used air lift chair is a product upgraded from a screw-type swivel chair around 2000. The production technology was first introduced from abroad, and the 1996 version of the standard did not provide for parts such as lifting pneumatic rods, so it is impossible to carry out targeted Sexual inspection and testing.
2. In 2007, the National Development and Reform Commission issued the QB/T2280-2007 "office chair" standard to replace the "swivel chair" standard, which was officially implemented on March 1, 2008. The new standard has undergone major changes in terms of name and scope of application, and at the same time added many new requirements, such as color fastness to dry rubbing, tear strength of leather, moisture permeability of textile fabrics, limit of harmful substances for wooden materials, flame retardancy, etc.
3. In terms of mechanical properties, the standard not only combines the actual use of office chairs in China, but also tries to be in line with international advanced standards. Compared with the old standard, the new standard is more comprehensive and strict, which is conducive to improving the quality of products such as chair lifts and ensuring the safety of consumers. However, the provisions for pneumatic rods (belonging to "material requirements") in the "Office Chair" standard are contract items, that is to say, unless there is a special contract agreement when consumers order chairs, they do not need to be carried out on pneumatic rods. Inspection, the judgment of inspection results does not include this item.
4. At the same time, it is stipulated that the pneumatic rod only refers to the durability requirements in JB/T8064.1 "Technical Conditions for Gas Springs" and JB/T8064.2 "Technical Conditions for Lockable Gas Springs", and there are no requirements for design, production and other links, and The latest version of these two standards was published in 1996. Therefore, the "Office Chair" standard does not really solve the biggest safety hazard in the lift chair - the problem of the pneumatic rod. It can be said that the relevant standards of Chinese office chairs leave "space" for blind spots, leaks and potential safety hazards in the air pressure lifting link.
