A screw rod self-locking device includes a one-way bearing and a mounting seat, and an inner hole of the one-way bearing is sleeved at an end of a screw rod. A mounting hole for receiving the one-way bearing is disposed on the mounting seat, and the one-way bearing is rotatably fitted into the mounting hole along a circumferential direction. An adjusting mechanism for adjusting a circumferential locking force of the mounting hole for the one-way bearing is disposed on the mounting seat so as to adjust a size of a friction force between an outer wall of the one-way bearing and an inner wall of the mounting hole. A height-adjustable leg and a height-adjustable desk applying the same are further provided. In this way, a size of a self-locking friction force to be overcome during backward rotation of a screw rod can be self-defined, thereby guaranteeing consistency of product performances.

Disclosed is a self-locking apparatus for a linear actuator, which relates to the field of linear actuation equipment. The self-locking apparatus includes a one-way bearing and a friction collar, wherein the one-way bearing includes an inner race and an outer race, the inner race being sleeved to the rotary screw of the linear actuator, the friction collar being connected to the outer race; wherein the self-locking apparatus further includes a friction member fitted with the friction collar, such that when the rotary screw rotates forwardly, the outer race does not rotate; and when the rotary screw rotates reversely, the outer race, the inner race, and the friction collar rotate synchronously, such that friction is produced by contacting between the friction collar and the friction member. Further disclosed is a linear actuator applying the self-locking apparatus.

A screw rod self-locking device includes a one-way bearing and a mounting seat, and an inner hole of the one-way bearing is sleeved at an end of a screw rod. A mounting hole for receiving the one-way bearing is disposed on the mounting seat, and the one-way bearing is rotatably fitted into the mounting hole along a circumferential direction. An adjusting mechanism for adjusting a circumferential locking force of the mounting hole for the one-way bearing is disposed on the mounting seat so as to adjust a size of a friction force between an outer wall of the one-way bearing and an inner wall of the mounting hole. A height-adjustable leg and a height-adjustable desk applying the same are further provided. In this way, a size of a self-locking friction force to be overcome during backward rotation of a screw rod can be self-defined, thereby guaranteeing consistency of product performances.

A work station including a base includes a work surface pivotally mounted to the base so as to be configured to pivot between a first position and a second position. The work surface is configured to cover a protected member when in a first position and the work surface is configured to uncover the protected member when moved into a second position. The base is configured to support the work surface on a floor surface. A height of the work surface can be adjusted to accommodate the ergonomic needs of different users.

The present application relates to a lifting column for a piece of furniture, in particular for a table. The lifting column comprises a first element and also a second element. The second element is introduced at least some way into the first element. The first element has a spindle, which extends along the longitudinal axis of the first element and projects at least some way into the second element. The second element has a rotor, which is mounted in a rotatable manner in it and has at least one rolling body, which runs in or on a thread helix of the spindle. A rotation of the rotor relative to the spindle gives rise to a linear movement of the second element relative to the first element. The second element also has an arresting device, which, in a first state, blocks the rotation of the rotor relative to the spindle and, in a second state, frees the rotation of the rotor relative to the spindle. At least one leg spring is clamped in between the rotor and a fastening element, which is fastened on the second element, and this leg spring therefore subjects the rotor to a prestressing force.

An actuated, height adjustable optical table or workstation for use in microscopy, optical research laboratories and similar environments includes fixed and moving parts which combine to create a rigid, height adjustable table structure on which to mount an optical breadboard or similar platforms via optional passive or active vibration isolation mounts. The height adjustment is performed by multiple compact actuators with associated control hardware and software, and allows the user or an application system to perform activities with the table at any heights.

An automatic height adjustment system includes an adjustable desk frame, a first drive assembly operable to control a height of the adjustable desk frame, an adjustable monitor mount, a second drive assembly operable to control a viewing height of the adjustable monitor mount, a transceiver, and a first controller communicatively coupled to the first drive assembly and to the transceiver. The first controller is configured to receive, via the transceiver, a first communication based on the detection of a position of a user from a computing device and to transmit, via the transceiver, a second communication to the first drive assembly to control the height of the adjustable desk frame and movement of the adjustable desk frame and the adjustable monitor mount are synchronized such that an adjustment of the height of the adjustable desk frame causes a corresponding adjustment of the viewing height of the adjustable monitor mount.

A workstation is provided including first and second vertically telescoping support columns, a base frame mounted atop the first and second support columns, so that the base frame is movable up and down, and a desktop joined with the base frame and slidable between a first position in which the desktop is disposed vertically over both the first and second support columns, so a user can sit or stand facing the desktop, and a second position in which the desktop is cantilevered and projects laterally, distally beyond the first support column a first distance beyond the base frame, so that the user can exercise facing the desktop on an exercise device located laterally beyond and outside the first and second support columns. A related method of use is provided.

A table includes a table top having a frame attached to a lower surface of the table top. The table also includes a first leg having lugs and a second leg having lugs. The lugs of the first leg and the second leg are received in slots of the frame to attach the legs to the table. The legs are telescopically movable to adjust the height of the table top.

An electric table stand for simple assembly and adjustment includes a beam structure (10), support bars (20), and upright structures (30). Each of the support bars (20) includes a base (21) and a plurality of arms (211, 212, 213) extended from the base (21), wherein an accommodating space (A) is defined by the base (21) and the arms (211, 212, 213). One arm (213) of each of the support bars (20) supports one end of the beam structure (10), and the beam structure (10) is operatively moved in or out of the accommodating space (A). The upright structures (30) are connected to the support bars (20). Accordingly, it is easy to adjust and position each support bar (20) and each upright structure (30) on the beam structure (10).