Patent attributes
The present invention discloses a hook-on chair comprising a seat, a lower clamping arm, a height adjustment mechanism and a height fine-adjustment mechanism. The seat comprises a seat body, which is provided with an upper clamping arm and a vertical support tube. The lower clamping arm is arranged on the vertical support tube and vertically moves along the same. A lower clamping unit is arranged on the front portion of the lower clamping arm and below the upper clamping arm. The height adjustment mechanism comprises an adjustment part arranged in the vertical support tube, and a first locking device used for locking the lower clamping arm on the adjustment part. The height fine-adjustment mechanism is arranged on the lower portion of the vertical support tube, and used for driving the adjustment part to vertically move in the vertical support tube and adjust the height of the lower clamping arm.
