Embodiments relate to a lifting pillar having at least a first tube and at least a second tube that is axially movably arranged within the first tube. Further, the lifting pillar provides at least one sliding element arranged between the first tube and the second tube. The sliding element is in direct contact with the first tube and the second tuber and is axially movably arranged in relation to the first tube and the second tube.

A height adjustable desk can include a work surface; and at least one leg assembly connected to the work surface. The at least one leg assembly can include: a first member; and a second member moveable relative to the first member along a longitudinal axis; and a counterbalance mechanism connected to the desk and configured to counteract a force exerted on the work surface. The counterbalance mechanism can include: a wheel; a gas spring having a cylinder and a moveable piston; a wheel moveably connected to the gas spring; and the tension member is connected to the leg assembly.

A height adjustable desk can include a work surface; and at least one leg assembly connected to the work surface. The at least one leg assembly can include: a first member; and a second member moveable relative to the first member along a longitudinal axis; and a counterbalance mechanism connected to the desk and configured to counteract a force exerted on the work surface. The counterbalance mechanism can include: a wheel; a gas spring having a cylinder and a moveable piston; a wheel moveably connected to the gas spring; and the tension member is connected to the leg assembly.

A lifting table is provided which is provided with a top plate height adjustment device which, by performing a height adjustment operation in all of the support columns in a synchronized manner by a single operation, makes it possible to smoothly and reliably adjust the height of the top plate. The top plate 2 of this lifting table 1 is supported on the floor by means of a leg structure 3 provided with multiple support columns 5 arranged in parallel. Top plate receiving structures 20 are for attaching a column 5 to the top plate 2, and to change the length of the support columns 5, push valves 16 exposed on the inside of the top plate receiving structures 20 are actuated, changing the length of gas springs provided inside of the support columns 5. By extending an operation rod unit 32 into the top plate receiving structures 20 from a single handle 31 of an operation lever 30 via a connection fitting 34, the push valves 16 are operated the same amount and at the same time in all of the columns 5 with a single operation, so that it is possible to smoothly raise and lower the top plate 2.

A lifting table is provided which is provided with a top plate height adjustment device which, by performing a height adjustment operation in all of the support columns in a synchronized manner by a single operation, makes it possible to smoothly and reliably adjust the height of the top plate. The top plate 2 of this lifting table 1 is supported on the floor by means of a leg structure 3 provided with multiple support columns 5 arranged in parallel. Top plate receiving structures 20 are for attaching a column 5 to the top plate 2, and to change the length of the support columns 5, push valves 16 exposed on the inside of the top plate receiving structures 20 are actuated, changing the length of gas springs provided inside of the support columns 5. By extending an operation rod unit 32 into the top plate receiving structures 20 from a single handle 31 of an operation lever 30 via a connection fitting 34, the push valves 16 are operated the same amount and at the same time in all of the columns 5 with a single operation, so that it is possible to smoothly raise and lower the top plate 2.

The invention is a lifting floor system. An underfloor support structure is divided into a number of partitions, and each partition is equipped with one or more lifting devices. A frame nests removably inside each partition, each frame having a floor piece at the top and a sub-floor piece at the bottom. The one or more lifting devices lift the frames from within the partitions, exposing usable space between each floor piece and sub-floor piece. The space is preferably large enough to store large items such as household appliances and furniture. The underfloor support structure is preferably modular and flat packable. The frames may have organizational features, such as shelves, hanging rods, or slide-out floors.

A desk includes a desk top and a frame connected to underside of the desk top. Two storage boxes are respectively connected the left and right sides of the frame. Each storage box has a retractable column extending therefrom which is driven by a driving unit. Each storage box has a flexible cable manager located therein which is cooperated with multiple boxes to organize cables of computers and accessories, and the boxes are moved with movement of the desk top.

A desk includes a desk top and a frame connected to underside of the desk top. Two storage boxes are respectively connected the left and right sides of the frame. Each storage box has a retractable column extending therefrom which is driven by a driving unit. Each storage box has a flexible cable manager located therein which is cooperated with multiple boxes to organize cables of computers and accessories, and the boxes are moved with movement of the desk top.

A retractable column structure includes an outer tubular member (10), a retaining bracket (20) and an inner tubular member (30). The outer tubular member (10) includes a wall (11) having outer (111), inner (112) and end (113) surfaces. The outer tubular member (10) includes slots (114) extending from the end surface (113) to the inner surface (112). A rear end of each slot (114) includes a protrusion (115) protruding out of the inner surface (112). The retaining bracket (20) includes a frame member (21) abutted against the wall (11) and locking hooks (22) inserted into the inner surface (112) and locked onto each corresponding protrusion (115). The inner tubular member (30) moveably penetrates into the retaining bracket (20) disposed between the tubular members and is concealed inside the outer tubular member (10). Accordingly, excellent support of inner and outer tubular members can be achieved for stable sliding therebetween.

A retractable column structure includes an outer tubular member (10), a retaining bracket (20) and an inner tubular member (30). The outer tubular member (10) includes a wall (11) having outer (111), inner (112) and end (113) surfaces. The outer tubular member (10) includes slots (114) extending from the end surface (113) to the inner surface (112). A rear end of each slot (114) includes a protrusion (115) protruding out of the inner surface (112). The retaining bracket (20) includes a frame member (21) abutted against the wall (11) and locking hooks (22) inserted into the inner surface (112) and locked onto each corresponding protrusion (115). The inner tubular member (30) moveably penetrates into the retaining bracket (20) disposed between the tubular members and is concealed inside the outer tubular member (10). Accordingly, excellent support of inner and outer tubular members can be achieved for stable sliding therebetween.