Patent attributes
A height adjustment assembly for use in furniture such as a chair armrest is revealed. The height adjustment assembly includes a fixing base, an outer sleeve, and a rod. A snap block is released from one of one of the slots of the fixing base to be in a released state when a drive portion of the rid is driven for synchronously driving the snap block of the rod to move for adjustment. Now the fixing base remains still and the outer sleeve can be moved and adjusted vertically relative to the fixing base. The vertical movement of the outer sleeve includes a highest point and a lowest point. The fixing base or a fixed position of the fixing base is located between the highest point and the lowest point. Thereby the fixing base is covered with the outer sleeve to improve beauty and quality of the furniture.
