Office chair with adjustable waist support

Abstract

The office chair comprises a chair seat, chair back frames, chair leg frames and armrests, the chair leg frames are arranged in the center of the bottom of the chair seat, the armrests are fixedly installed at the left end and the right end of the chair seat respectively, and the rear ends of the armrests are fixedly connected with the chair back frames arranged at the left end and the right end of the rear side of the chair seat respectively. According to the office chair with the adjustable waist support, the height position of the waist support assembly on the back plate frame can be adjusted through the design of the adjusting unit, the height position of the waist support assembly on the back plate frame can be adjusted, the height position of the back plate frame can be adjusted, and the height position of the back plate frame can be adjusted. Meanwhile, the air pump and the elastic air bag are combined, personalized adjustment of the supporting force of the waist support is achieved, it can be guaranteed that the waist support better fits the waist of a user through a dual-adjustment mechanism, more comfortable and personalized support is provided, and waist fatigue caused by long-time sitting posture is effectively relieved.

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