Office Chair Swivel Handle

The office chair swivel handle has multiple functions, mainly including adjusting the backrest hardness, adjusting the chair height, adjusting the backrest rebound force, and locking and unlocking functions.

1. Adjusting the Backrest Hardness
   The swivel handle of an office chair can be rotated clockwise or counterclockwise to adjust the hardness of the backrest. When the user rotates the handle clockwise, the support force of the backrest increases, making it harder and suitable for scenarios requiring strong back support, such as long hours of office work or reading. Conversely, rotating it counterclockwise makes the backrest softer, providing a more comfortable leaning experience, suitable for relaxation or short breaks. This design allows users to flexibly adjust the backrest hardness according to their personal needs and comfort.

2. Adjusting the Chair Height
   Another important function of the swivel handle is to adjust the height of the chair. By rotating the rod up or down, users can easily raise or lower the chair. Specifically, rotating the rod upward raises the chair, suitable for users who need a higher sitting position, such as when using a high desk or in combination with standing office work. Rotating it downward lowers the chair, accommodating lower workbenches or a more relaxed sitting posture. This height adjustment function ensures that the office chair can adapt to the needs of different heights and usage scenarios.

3. Adjusting the Backrest Rebound Force
   Some office chair swivel handles also have the function of adjusting the backrest rebound force. After enabling the backrest recline function, users can change the rebound force of the backrest by rotating the handle clockwise or counterclockwise. The specific rotation direction may vary by product, but it is generally designed to meet users' personalized needs for backrest support force. Additionally, some swivel handles can raise the seat plate when rotated, and in combination with the adjacent rod, the seat plate can be lowered, further increasing the adjustability of the seat.

4. Locking and Unlocking Functions
   The swivel handle is also commonly used to lock and unlock the chair. Pushing the rod inward locks the chair in its current state, preventing accidental movement or adjustment during use and ensuring safety. Pulling the rod outward unlocks the chair, allowing users to readjust various parameters of the chair, such as height and backrest angle. This design ensures both stability during use and convenient adjustability.