Height-adjustable desk

Abstract

A height-adjustable desk includes: a desktop; a lifting assembly having two height-adjustable legs coupled to the desktop, wherein the two height-adjustable legs are to support the desktop; a storage cabinet defining at least one through-hole configured to permit passage of one of the two height-adjustable legs therethrough; and a rotational connection assembly including: a base securely within the at least one through-hole of the storage cabinet; and a rotating member rotatably coupled to the base, the rotating member defining a through-hole configured to permit passage of one of the two height-adjustable legs therethrough. The storage cabinet is rotatably connected to the one of the two height-adjustable legs via the rotational connection assembly.

What is claimed is: 
     
         1 . A height-adjustable desk, comprising: 
 a desktop;   a lifting assembly comprising two height-adjustable legs coupled to the desktop, wherein the two height-adjustable legs are configured to support the desktop;   a storage cabinet defining at least one through-hole configured to permit passage of one of the two height-adjustable legs therethrough; and   a rotational connection assembly comprising: 
 a base securely within the at least one through-hole of the storage cabinet; and  
 a rotating member rotatably coupled to the base, the rotating member defining a through-hole configured to permit passage of one of the two height-adjustable legs therethrough; 
 wherein the storage cabinet is rotatably connected to the one of the two height-adjustable legs via the rotational connection assembly. 
   
     
     
         2 . The height-adjustable desk of  claim 1 , further comprising a crossbeam, wherein the crossbeam comprises two opposite ends that are respectively connected to the two height-adjustable legs, and the crossbeam is disposed below the desktop. 
     
     
         3 . The height-adjustable desk of  claim 1 , further comprising two support beams, wherein the two support beams are coupled to a bottom surface of the desktop and respectively connected to the two height-adjustable legs. 
     
     
         4 . The height-adjustable desk of  claim 1 , wherein the base comprises: 
 a main body; and    a blocking portion formed at one end of the main body;   a positioning protrusion protrudes from a circumferential side surface of the main body; and   a positioning groove is defined in a circumferential inner side surface of the at least one through-hole of the storage cabinet;   
       wherein the main body is accommodated in the at least one through-hole of the storage cabinet, and the positioning protrusion is within the positioning groove so as to prevent the main body from rotating in the at least one through-hole of the storage cabinet. 
     
     
         5 . The height-adjustable desk of  claim 4 , further comprising a fixing ring fixed to an opposite end of the main body relative to the blocking portion; 
       wherein the at least one through-hole of the storage cabinet is a stepped hole formed by a large hole and a small hole that communicate with each other, the main body of the base is accommodated in the small hole, and the fixing ring is accommodated in the large hole and fixed to the end of the main body. 
     
     
         6 . The height-adjustable desk of  claim 5 , wherein the main body defines an accommodating hole for accommodating the rotating member; 
       wherein an inner edge of the blocking portion protrude inward from a circumferential inner side surface of the accommodating hole, and the rotating member is retained in the accommodating hole by being restricted between the blocking portion and the fixing ring. 
     
     
         7 . The height-adjustable desk of  claim 1 , wherein the storage cabinet comprises a plurality of casters; 
       wherein the storage cabinet is movably supported on a surface on which the height-adjustable desk is located by means of the plurality of casters. 
     
     
         8 . The height-adjustable desk of  claim 1 , wherein the storage cabinet comprises a top plate and a bottom plate, the at least one through-hole is two in number, and the two through-holes are respectively defined in the top plate and the bottom plate. 
     
     
         9 . The height-adjustable desk of  claim 8 , further comprising a support foot coupled to the one of the two height-adjustable legs, and a rotary coupling assembly that rotatably connects the bottom plate to the support foot. 
     
     
         10 . The height-adjustable desk of  claim 9 , wherein the rotary coupling assembly comprises a partition plate, a first rotating member, and a second rotating member; 
       wehrein the partition plate is fixed to the bottom plate, the first rotating member is fixed to a side of the partition plate opposite the bottom plate, the second rotating member is fixed to the support leg, and the first rotating member and the second rotating member comprise contact surfaces that abut each other and are capable of relative rotation.