One、Why do the lifting chairs automatically lift up?
The ability of adjustable chairs to raise and lower is primarily due to the pneumatic cylinders located beneath the seat. These cylinders are filled with high-pressure gas, which is used to adjust the pressure and achieve the desired height adjustment. This is achieved through the airtight seal of the pneumatic cylinders. When the rubber seals on the cylinders wear out or degrade over time, the pneumatic system loses its effectiveness, leading to the chair either automatically lowering or raising.
Two. What is the malfunction when the lifting chair automatically raises itself?
Lifting chairs typically malfunction due to issues with the gas cylinder. It is recommended to replace the entire chair or just the gas cylinder. A lifting chair is characterized by: the support and seat legs are connected via a pivoting support arm. The support arm pivots up and down around the axis connecting it to the seat legs. When the support arm is moved, it raises and lowers the support, enabling the seat to lift; additionally, a lifting positioning device is installed between the support and the seat legs.
Due to the issue with the lifting chair's gas spring, it is difficult for us to repair it ourselves. This is primarily due to our lack of understanding of its internal structure and the absence of specialized disassembly tools. Therefore, we recommend contacting the after-sales service or a specialist in repairing lifting chairs for repair. If such personnel are unavailable, we suggest searching online for a suitable replacement gas spring. Replacing the gas spring will prevent the unnecessary replacement of the entire lifting chair.
Finally, I would like to remind everyone that due to the high-pressure gas inside the gas cylinder, it is extremely dangerous to attempt to remove or repair it without proper knowledge and expertise. There have been reports online of accidents involving lifting chairs, so it is best to seek professional assistance if there are any issues with the gas cylinder or to have a qualified friend replace the lifting chair.