A linear actuator for adjusting a piece of furniture comprises a motor having a motor shaft, a conversion arrangement coupled to the motor shaft and adapted to convert a rotational movement generated by the motor shaft into an elongation of the linear actuator, and a locking arrangement coupled directly or indirectly to the motor shaft and adapted to selectively cause rotation locking of the motor shaft by means of a locking element. The locking arrangement comprises an inner part with at least one inner chamber and an outer part radially surrounding the inner part and having at least one outer chamber. The outer part and the inner part are rotatable relative to each other in such a way that the at least one inner chamber and the at least one outer chamber can be aligned with each other. The rotation locking is activated by clamping the locking element between the at least one inner chamber and the at least one outer chamber by means of rotation of the inner part and the outer part relative to each other.

A linear actuator for adjusting a piece of furniture comprises a motor having a motor shaft, a conversion arrangement coupled to the motor shaft and adapted to convert a rotational movement generated by the motor shaft into an elongation of the linear actuator, and a locking arrangement coupled directly or indirectly to the motor shaft and adapted to selectively cause rotation locking of the motor shaft by means of a locking element. The locking arrangement comprises an inner part with at least one inner chamber and an outer part radially surrounding the inner part and having at least one outer chamber. The outer part and the inner part are rotatable relative to each other in such a way that the at least one inner chamber and the at least one outer chamber can be aligned with each other. The rotation locking is activated by clamping the locking element between the at least one inner chamber and the at least one outer chamber by means of rotation of the inner part and the outer part relative to each other.

A desk with support structures configured to attach modular attachments is disclosed. Exemplary implementations may include a work surface, a left-side support structure, a right-side support structure, a core body, a working body that provides the work surface, one or more modular attachments, one or more mounting brackets, and/or other components. The one or more modular attachments can be mechanically coupled to and supported by either support structure.

A liftable table leg includes a bushing, a second fixing piece, a lift assembly, a fixing base and a drive assembly. A first fixing piece is sleeved on a first end of the bushing. The second fixing piece includes a fixing flange and an accommodation groove. The first end is fixed to a bottom end of the accommodation groove through the first fixing piece. A nut of the lift assembly is fixedly disposed at a second end of the bushing. A lead screw of the lift assembly is rotatably disposed in the bushing and threaded into the nut. The second fixing piece is fixedly disposed at the fixing base through the fixing flange. The drive assembly includes a fixing frame. An end of the lead screw is rotatably connected to the fixing frame, and the drive assembly is capable of driving the lead screw to rotate.

A liftable table leg includes a bushing, a second fixing piece, a lift assembly, a fixing base and a drive assembly. A first fixing piece is sleeved on a first end of the bushing. The second fixing piece includes a fixing flange and an accommodation groove. The first end is fixed to a bottom end of the accommodation groove through the first fixing piece. A nut of the lift assembly is fixedly disposed at a second end of the bushing. A lead screw of the lift assembly is rotatably disposed in the bushing and threaded into the nut. The second fixing piece is fixedly disposed at the fixing base through the fixing flange. The drive assembly includes a fixing frame. An end of the lead screw is rotatably connected to the fixing frame, and the drive assembly is capable of driving the lead screw to rotate.

A lifting table stand includes a pair of telescopic columns, a carrier, an actuation module and a passive mechanism. Each telescopic column includes multiple tubes adapted to sheathe with each other and move telescopically relative to each other. The carrier includes a beam straddling the telescopic columns and a pair of support members perpendicularly connected to two ends of the beam. The actuation module includes a receiving member detachably installed to the beam and a driver connected to the receiving member. The passive mechanism includes a transmission shaft and a pair of gear sets installed in the tubes. The transmission shaft passes the driver and is connected to each gear set. Since the receiving member is detachably installed to beam, the actuation module may be changed to different types to control the elevation of the lifting table stand.

A height-adjustable desk is disclosed. Exemplary implementations may include a work surface, a left-side support structure, a right-side support structure, a core body, and a working body that provides the work surface. The core body may include lifting mechanisms such that the work surface of the desk may be positioned for a person in a standing and/or sitting position. The working body may include a control interface configured to be manually engaged by the user, to control lifting and/or lowering of the work surface of the desk.

A height-adjustable desk is disclosed. Exemplary implementations may include a work surface, a left-side support structure, a right-side support structure, a core body, and a working body that provides the work surface. The core body may include lifting mechanisms such that the work surface of the desk may be positioned for a person in a standing and/or sitting position. The working body may include a control interface configured to be manually engaged by the user, to control lifting and/or lowering of the work surface of the desk.

A leg structure of an electric table includes a pair of support assemblies (10), multiple horizontal rods (20) and a pair of drive assemblies (30). The support assemblies (10) are arranged spacedly and parallelly to each other. Each support assembly (10) includes a connecting rod (11) and a pair of telescopic posts (12). Each telescopic post (12) is connected and fixed to the connecting rod (11). Each horizontal rod (20) is separately connected to each support assembly (10) and is parallel to each other. Each drive assembly (30) is separately received in each support assembly (10) for driving each telescopic post (12) to ascend or descend. Therefore, the leg structure of an electric table may be easily assembled and the whole structure is stable.

A leg structure of an electric table includes a pair of support assemblies (10), multiple horizontal rods (20) and a pair of drive assemblies (30). The support assemblies (10) are arranged spacedly and parallelly to each other. Each support assembly (10) includes a connecting rod (11) and a pair of telescopic posts (12). Each telescopic post (12) is connected and fixed to the connecting rod (11). Each horizontal rod (20) is separately connected to each support assembly (10) and is parallel to each other. Each drive assembly (30) is separately received in each support assembly (10) for driving each telescopic post (12) to ascend or descend. Therefore, the leg structure of an electric table may be easily assembled and the whole structure is stable.