Office Chair Swivel and Height-Adjustable Chair

The office chair swivel and height-adjustable chair is an office seating option equipped with swivel and height adjustment functions, falling under the category of office supplies. Some products also feature ergonomic design elements.

Core Functions and Components
The core functions of an office swivel chair revolve around swiveling and height adjustment. Its height adjustment function is achieved through a pneumatic height adjustment system, allowing users to adjust the seat height by operating the pneumatic rod to accommodate different heights or desk heights. The swivel function relies on a flexible bracket and roller design, supporting 360-degree horizontal rotation and enabling the seat position to be fixed through a movement locking mechanism, enhancing usage flexibility. The basic components include a seat cushion, backrest, five-star base, casters, and pneumatic rod. The combination of the five-star base and casters ensures smooth seat movement, while the durability of the pneumatic rod directly affects the stability of the height adjustment function.

Ergonomic Design Extended Functions
Some high-end models incorporate ergonomic design elements into their basic functions to enhance comfort and health support:

1. Lumbar Support Adjustment: For example, the Jingdong Jingzao Z5 Pro is equipped with a flexible rotating lumbar support that supports 20-degree flexible rotation and three-level lumbar support modes, adapting to the lumbar support needs under different sitting postures. The 3D dynamic lumbar support chair automatically fits the user's waist curve through front-back and up-down adjustment functions, reducing fatigue from prolonged sitting.
2. Multi-Dimensional Support: The backrest of the Jingdong Jingzao Z5 Pro supports 50mm height adjustment, paired with a 10.5cm thick high-elastic seat cushion to disperse hip pressure. The armrests of the Xihao B300Pro feature a recline linkage function that adjusts synchronously with the body's recline, maintaining natural arm support.
3. Head and Neck Support: The 2D large-arc neck pillow and 140-degree large recline angle function of the Jingdong Jingzao Z5 Pro meet the neck support needs during lunch breaks or short rests, preventing excessive stretching of the cervical spine.

Application Scenarios and Principles
The design of office swivel chairs is based on ergonomic principles, helping users maintain the natural physiological curvature of the spine through adjustable lumbar supports, armrests, and headrests, reducing back pain caused by prolonged sitting. Their application scenarios are wide-ranging, including not only office environments but also home studies, conference rooms, and medical settings (such as consultation rooms), meeting the needs for prolonged sitting. Some models, like the Xihao B300Pro's 100-degree flip storage function, further enhance space utilization, adapting to small-area usage scenarios.