Abstract: A three-segment electric lifting desk includes a desktop and supporting legs. The supporting legs are connected to the bottom of the desktop. A main beam is provided at a bottom of the desktop, and two ends of the main beam are respectively connected to one supporting leg. The supporting leg is formed by connecting three tubes of different diameters, and the three tubes are a first tube, a second tube and a third tube, respectively. The three tubes are sequentially nested and connected to each other, and an interconnected cavity is formed inside the tubes. An electric pushing rod is provided in the cavity. The three-segment electric lifting desk has the characteristics of simple structure, stable lifting process, freely space retracting and expanding, stable driving of lifting and lowering, etc.

Abstract: The present invention relates to an office appliance, and particularly discloses a foldable height-adjustable desk workstation, which comprises a workstation desktop, upper workstation support legs, lower workstation support legs, lifters, and locking mechanisms. In the foldable height-adjustable desk workstation with the above-mentioned structure, the workstation desktop can be controlled by the lifters arranged between the upper workstation support legs and the lower workstation support legs to vertically go up or down, and the workstation desktop can be locked at any height position between an upper limit position and a lower limit position by the locking mechanisms.