Office Chair Breakage Moment

The situations of office chair breakage moments vary depending on the type and cause, with common types and breakage scenarios as follows:

Breakage of the Five-Star Base of Ergonomic Chairs

Breakage of the five-star base of ergonomic chairs usually occurs at the welding points. For example, someone bought an ergonomic chair from a Douyin (Chinese TikTok) live stream and used it for less than a year when the welding point of the five-star base suddenly broke, causing the person to fall backward directly. This is because the five-star base is generally welded to the chassis with steel pipes. During the welding process, if the current is not adjusted properly or the pipe walls are not aligned, problems such as cold solder joints and air holes may occur in the welds. With a person sitting on the chair every day, their body weight plus the force of leaning back all press on the welds. The cold solder joints will gradually loosen, and eventually, the welds will break completely from the inside, leading to the breakage of the five-star base. This type of breakage often occurs suddenly and may happen without any warning during normal use, posing a significant threat to the user's personal safety.

Breakage at the Connection Between the Backrest and Seat of Wooden Chairs

Breakage at the connection between the backrest and seat of wooden chairs is also relatively common. For instance, someone purchased solid wood dining chairs from Baisheng Furniture and, after only four months of actual use, the connection between the backrest and seat of one of the chairs suddenly became severely loose and even cracked when moved. Upon inspection, it was found that the connection between the backrest and seat was fixed with low-density wooden wedges, while the main material of the chair body was high-density wood, creating a stark contrast. The insufficient strength at this crucial connection point led to structural imbalance, making it prone to breakage under external forces such as moving. This type of breakage usually becomes apparent over time with repeated application of external forces and may have signs such as looseness before the actual breakage occurs.

Explosive Breakage of Pneumatic Lifting Chairs

Explosive breakage of pneumatic lifting chairs is even more dangerous. A netizen posted that a colleague's office chair suddenly exploded. The common black lifting swivel chair broke into two pieces at the rotating shaft. The metal tube at the broken part of the rotating shaft was severely deformed and cracked. The floor was a mess with many scattered fragments, and several wheels of the chair had fallen off. The explosion also affected the computer host next to the chair, causing the host case to be hit and cracked. This type of explosive breakage often occurs instantly and has a tremendous destructive force. It can not only damage office equipment but also cause serious physical injuries to the user.