Home Office Chair Base

The home office chair base is a core component that connects the gas lift and the chair back, directly affecting the reclining function, adjustability, and long-term sitting comfort. Common types and their characteristics are as follows:

1. Ordinary Base (Fixed Type)
   It features a single flat plate structure with no adjustment handles or mechanical devices, and the chair back and seat cushion are fixed and immovable. This type of base is mostly used in low-cost bow chairs, four-legged chairs, or basic swivel chairs, with functions limited to providing basic sitting support. Due to the lack of reclining and dynamic adjustment capabilities, prolonged use can easily lead to back fatigue, making it suitable for short-term use scenarios or users with extremely limited budgets.

2. Single Reclining Base (Ordinary Recline)
   A small wrench or knob is equipped on the side of the base, supporting a 20°-30° recline but without angle locking. Users can achieve a brief recline by pulling the adjustment lever, which is useful for moving the back or relaxing the neck, but requires continuous manual holding of the posture. This type of base is commonly found in basic employee chairs or home computer chairs, suitable for users who need occasional sitting posture adjustments but have limited budgets.

3. Single Reclining Base with Locking Mechanism
   On the basis of the single recline function, an angle locking mechanism is added, allowing the recline angle to be fixed (such as a 90° working mode or a 110° slight lying mode) through a thick pull rod or hand-operated switch. Some models support adjusting the tension of the recline spring to accommodate users of different weights. This type of base is widely used in mainstream-priced office chairs and entry-level ergonomic chairs, balancing cost-effectiveness and functionality, and meeting the needs of alternating between sitting and standing and short breaks.

4. Synchronous Reclining Base
   It adopts a multi-link structure, where the seat cushion and backrest move proportionally when reclining (for example, if the backrest reclines by 25°, the front end of the seat cushion rises by 5°), avoiding thigh compression and lumbosacral suspension, and improving long-term sitting comfort. This type of base is mostly found in mid-to-high-end ergonomic chairs priced over a thousand yuan, suitable for users who need to sit for long periods or pursue ergonomic design.

Special Technology Bases

• Carbon-Glass Composite Spring Base: For example, the Sihoo C500 second generation uses a carbon fiber and glass fiber composite spring instead of a traditional spring, providing a more linear and noise-free support experience when reclining.
• Wire-Controlled Base: It integrates functions such as recline locking and height adjustment into a handle under the seat, allowing users to operate with one hand without bending over, improving adjustment convenience.
• Gravity-Sensing Base: It uses built-in sensors to detect the user's weight and automatically adjusts the recline resistance to ensure uniform support for users of different body types, commonly found in high-end ergonomic chairs.

Selection Advice: Match the base type according to the usage scenario, budget, and functional requirements. For short-term use or limited budgets, choose an ordinary base; for basic recline functions, choose a single recline base; for cost-effectiveness and multi-scenario adaptability, choose a base with a locking mechanism; for long-term office work or emphasis on comfort, choose a synchronous reclining base; for those with extreme requirements for the experience, consider special technology bases.