Office Chair Hydraulic Chair
A hydraulic chair is a type of chair that uses an oil pressure pump as its core adjustment component to achieve height adjustment by pressing a control lever. It features precise adjustment and high safety but has a relatively slow lifting speed.
I. Structure and Materials The seat cushion and backrest of a hydraulic chair are typically wrapped in faux leather fabric and filled with sponge, providing a comfortable sitting experience. The overall frame is constructed from multi-layer boards and metal frames, ensuring structural stability. The armrests come in a variety of materials, including PU, faux leather, or metal, to meet different usage needs. The base designs include star-shaped, circular, and square options, with materials mostly being chrome-plated or stainless steel, offering both aesthetic appeal and durability.
II. Working Principle and Characteristics Hydraulic chairs achieve lifting through an oil pressure pump, with the core principle being the incompressibility of hydraulic oil. When the control lever is pressed, the hydraulic oil flows within the pump, pushing the seat up or down slowly. Unlike pneumatic chairs, which rely on nitrogen compression for rapid lifting, hydraulic chairs offer a smoother lifting process, requiring multiple operations of the control lever to complete height adjustment, resulting in higher adjustment precision. Additionally, hydraulic chairs pose no explosion risk because their working principle is similar to that of a car jack, where the hydraulic oil cannot suddenly expand, making them significantly safer than pneumatic chairs.
III. Safety Precautions
- Seal Aging Issues: If the seals in a hydraulic chair age, it may lead to hydraulic oil leakage, resulting in uneven lifting. In such cases, the seals or related parts should be replaced promptly to avoid continued use, which could pose safety hazards.
- Choose Genuine Products: When purchasing, look for the BIFMA certification and opt for products priced above 500 yuan. Genuine brands usually come with leak-proof designs, reducing the risk of oil leakage. Avoid buying unbranded products to prevent safety accidents caused by quality defects.
IV. Explosion-Proof Requirements and Maintenance The explosion-proof focus for hydraulic chairs lies in the quality, material, and load-bearing capacity of the gas spring. Regularly check the brand and certification marks of the gas spring to ensure it meets safety standards. Additionally, avoid prolonged use that could lead to aging or air leakage. If any lifting abnormalities are detected, stop using the chair immediately and have it inspected and repaired.
