An elevation working platform includes a lower support and an upper support. At least one group of X-type elevation mechanisms is provided between the lower support and the upper support. The elevation working platform further includes an elastic element. A first end of the elastic element is connected between two end points of a first support rod or a second support rod. A second end of the elastic element is connected to the lower support or a second hinging seat capable of sliding relative to the lower support. Using the X-type elevation mechanisms, the front and back positions of the upper support do not change in an elevating process of the upper support, the structure is simple and practical, and the cost is relatively low.

A workstation includes a partition unit to form a workspace, in which a desk board, two pneumatic devices and a synchronizing device are provided. Each of the pneumatic devices has a fixed section and a movable section while the fixed section is fixed to the partition unit and the movable section is connected to desk board to lift and lower the desk board. The synchronizing device is connected to the pneumatic devices to synchronize movements of the pneumatic devices.

A workstation includes a partition unit to form a workspace, in which a desk board, two pneumatic devices and a synchronizing device are provided. Each of the pneumatic devices has a fixed section and a movable section while the fixed section is fixed to the partition unit and the movable section is connected to desk board to lift and lower the desk board. The synchronizing device is connected to the pneumatic devices to synchronize movements of the pneumatic devices.

A height adjustment system for a delivery table or the like having a table top supported upon a height adjustable column with an assist cylinder. The system includes an actuator assembly to operate the assist cylinder from manual actuators, such as paddles, located approximately in four corners of table top. The system may include a pair of paddle assemblies mounted under the table top on opposite sides of said assist cylinder. The paddle assemblies may be coupled to the assist cylinder by a linear linkage that translates pivotal movement of a paddle into linear movement sufficient to actuate the assist cylinder. The linear linkage may include a straight drive rod coupled to one paddle assembly and an offset drive rod coupled to the other paddle assembly. The linear linkage may also include a pivot arm to reverse movement of the offset drive rod.

A table leg includes a fixed outer tube, a movable inner tube vertically movable in the fixed outer tube and having two pairs of parallel walls, and a plurality of rotating members rotatably mounted to one pair of the parallel walls of the movable inner tube and partially protruding out from an outer surface of the movable inner tube and stopped against an inner surface of the fixed outer tube, such that the rotating members are rotatable when the movable inner tube is moved relative to the fixed outer tube.

A table leg includes a fixed outer tube, a movable inner tube vertically movable in the fixed outer tube and having two pairs of parallel walls, and a plurality of rotating members rotatably mounted to one pair of the parallel walls of the movable inner tube and partially protruding out from an outer surface of the movable inner tube and stopped against an inner surface of the fixed outer tube, such that the rotating members are rotatable when the movable inner tube is moved relative to the fixed outer tube.

A single-column conference table includes a base, a table top, and a lifting mechanism. The lifting mechanism includes an upright column having a bottom portion fixed to the base. A first accommodating chamber is defined inside the upright column. A lifting sleeve is provided in the first accommodating chamber. A second accommodating chamber is defined inside the lifting sleeve. The lifting sleeve is fixed to the table top. A driving unit is provided in the second accommodating chamber. The driving unit is a gas spring. A bottom of the gas spring is fixed to the base together with the upright column. A top of the gas spring is fixed to the support seat. The table top connected with the support seat can be lifted or lowered through the gas spring. The conference table is more stable and reliable during the lifting operation and can prevent the table top from rotating.

A motorized desktop stand unit having a main surface assembly designed to accommodate a monitor or laptop and a secondary surface assembly designed to accommodate a keyboard. The desktop stand unit also has a frame assembly having an upper frame and a lower frame. An elevation mechanism is provided between the upper frame and lower frame. A switch provided in the main surface assembly, when actuated, causes the elevation mechanism to adjust the space between the upper frame and lower frames, changing the height of the main surface assembly.

An elevation working platform includes a lower support and an upper support. At least one group of X-type elevation mechanisms is provided between the lower support and the upper support. The elevation working platform further includes an elastic element. A first end of the elastic element is connected between two end points of a first support rod or a second support rod. A second end of the elastic element is connected to the lower support or a second hinging seat capable of sliding relative to the lower support. Using the X-type elevation mechanisms, the front and back positions of the upper support do not change in an elevating process of the upper support, the structure is simple and practical, and the cost is relatively low.

An elevation working platform includes a lower support and an upper support. At least one group of X-type elevation mechanisms is provided between the lower support and the upper support. The elevation working platform further includes an elastic element. A first end of the elastic element is connected between two end points of a first support rod or a second support rod. A second end of the elastic element is connected to the lower support or a second hinging seat capable of sliding relative to the lower support. Using the X-type elevation mechanisms, the front and back positions of the upper support do not change in an elevating process of the upper support, the structure is simple and practical, and the cost is relatively low.