Taishan Office Chair Lifting
The lifting function of Taishan office chairs is mainly achieved through three technologies: pneumatic rods, stepper motors with screw-nut mechanisms, and DC motor drives. Here are the specific details:
1. Traditional Pneumatic Rod Design
Some office chairs in Taishan use pneumatic rods as the core lifting component. The principle involves generating elastic force by compressing gas to achieve height adjustment. Users trigger the extension and retraction of the pneumatic rod through a lifting control lever or button at the bottom of the chair. When operating, it is necessary to maintain a stable body center of gravity to avoid sudden pressure changes inside the pneumatic rod due to rapid pressing. This design is low-cost and simple in structure, widely used in mid-to-low-end office chair products. However, after long-term use, slow air leakage may occur due to aging of the seals, requiring regular inspection of the sealing performance of the pneumatic rod.
2. Stepper Motor and Screw-Nut Mechanism
The invention patent (CN106963152A) of Taishan Jinhao Trading Co., Ltd. proposes an electric lifting solution: a stepper motor drives a screw to rotate, causing a nut to move axially, thereby achieving precise lifting of the seat and headrest. This technology supports both manual and electric dual-mode adjustment. In electric mode, the height can be set via a remote control or control panel, while manual mode retains traditional mechanical adjustment functions. The screw-nut mechanism offers high transmission accuracy, enabling millimeter-level adjustments, suitable for users with high demands for sitting comfort. However, the addition of the motor and transmission components slightly increases the product weight and cost.
3. DC Motor Drive Technology
Electric beds, chairs, and desks (such as models JK4118 and JK3030) produced by Taishan Jiangkou Electrical Appliance Manufacturing Co., Ltd. use DC motors to drive the lifting system. These products typically integrate the motor into the chair legs or base, converting the motor's rotation into linear motion through gear or chain transmission mechanisms to achieve smooth lifting of the seat. DC motors are characterized by low noise and fast response, and when combined with limit switches, they can prevent excessive lifting, ensuring high safety. Some high-end models are also equipped with memory functions to store users' commonly used height settings, enhancing convenience.
Procurement Case Reference
The office chairs (model yz-ql2184a) purchased by the CPC Taishan Municipal Committee Office are clearly marked with lifting functions and comply with ergonomic design standards. This product may adopt one of the above technologies or a combination thereof, which needs to be confirmed by referring to the product manual or supplier technical documentation. When purchasing, it is recommended to prioritize products certified by standards such as BIFMA (Business and Institutional Furniture Manufacturers Association) or GB/T 38607-2020 to ensure the durability and safety of the lifting mechanism.
