Office Chair Rotation Video Translation

Currently, there is no direct content available for 'office chair rotation video', but installation tutorials and working principle explanations are provided as alternatives for reference.

Installation Tutorial Reference

If you need to understand the installation process of an office chair, you can refer to the installation steps for the Deli 4901S ergonomic computer swivel chair. The installation of this model typically involves the following core steps:

1. Component Classification and Inspection: After opening the package, check that all accessories (such as chair legs, gas lift, seat cushion, backrest, armrests, screws, etc.) are complete and inspect for any damage during transportation.
2. Chair Leg and Gas Lift Assembly: Insert the gas lift vertically into the center hole of the chair legs, ensuring a secure connection. The gas lift is a key component for adjusting the seat height, so choose a model that meets safety standards.
3. Seat Cushion and Backrest Connection: Fix the seat cushion and backrest together using screws or clips, adjusting the angle to conform to ergonomic design and avoiding tilting or looseness after installation.
4. Armrest and Overall Fixation: Install the armrests on both sides of the seat cushion, tightening them with the provided screws to ensure symmetry. Some models may require installing the armrest brackets first before connecting to the seat cushion.
5. Final Adjustment: After installation, check that all screws are tightened, test the seat's lifting and rotation functions for normal operation, and adjust the backrest angle to a comfortable position.

Working Principle Explanation of Swivel Office Chairs

The flexibility of swivel office chairs mainly relies on the following structures:

1. Gas Lift: Filled with high-pressure nitrogen gas internally, it enables seat lifting and lowering through piston movement. High-quality gas lifts must pass safety certifications (such as BIFMA standards) to avoid explosion risks.
2. Five-Star Base and Wheels: The five-star base provides stable support, while the wheels, usually made of PU or nylon, reduce floor wear and enable 360-degree rotation.
3. Swivel Mechanism: Bearings or ball structures are installed at the connection between the base and the chair body, reducing friction and allowing the seat to rotate freely.

For more intuitive installation or usage demonstrations, it is recommended to search for 'Deli 4901S Installation Tutorial' on brand official websites, e-commerce platforms (such as JD.com, Tmall) product detail pages, or video platforms (such as Bilibili, Douyin) to obtain video resources.