A quick-release device for securing a gas cylinder in a seat plate includes a pedestal defining a socket for receiving the gas cylinder. The pedestal projects upwardly from an endwall to form a jaw against which the gas cylinder is received when applied to the socket. A clamp is pivoted to the jaw for movement between an open position and a closed position. A flange is formed in the pedestal and has a lower surface for confrontation with the seat plate. A latch is coupled to the pedestal. The latch moves between a first position enabling movement of the clamp between the open and closed positions, and a second position disabling movement of the clamp between the open and closed positions.

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.

A lifting table including a platform having a polygonal contour and including an upper and a lower face, a lifting mechanism and a base. The lifting mechanism connected to the table top and including an actuator for raising and lowering the table top. The base configured for supporting the lifting mechanism. Two side members positioned along two adjoining sides of the table top and a switch element positioned below the upper face, wherein the side members are connected to the table top below the upper face allowing the side members to be moved between a first position, wherein the frame members are disengaged from the switch element and a second position where the side members activate the switch element, hereby preventing displacement of the table top relative to the base. Ends of the side members are arranged with a distance in between each other.

A lifting table including a platform having a polygonal contour and including an upper and a lower face, a lifting mechanism and a base. The lifting mechanism connected to the table top and including an actuator for raising and lowering the table top. The base configured for supporting the lifting mechanism. Two side members positioned along two adjoining sides of the table top and a switch element positioned below the upper face, wherein the side members are connected to the table top below the upper face allowing the side members to be moved between a first position, wherein the frame members are disengaged from the switch element and a second position where the side members activate the switch element, hereby preventing displacement of the table top relative to the base. Ends of the side members are arranged with a distance in between each other.

A height adjustment system includes a first controller to control a first drive assembly of an adjustable desk frame and a second controller to control a second drive assembly of an adjustable monitor mount. The first controller is communicatively coupled to the second controller to synchronize activation of the first controller and the second controller such that an adjustment of a height of the desk frame causes a corresponding adjustment of a viewing height of the monitor mount and an adjustment of the viewing height of the monitor mount causes a corresponding adjustment of the height of the desk.

The present invention relates to an adjustment profile (11) comprising an elongated means, substantially square of its cross section which means is provided with evenly spaced fastening openings (13) on at least one of its surfaces for receiving fastening means. In the cross section of this adjustment profile, one of its four sides is open for the whole length dimension of the adjustment profile comprising two opposite edge profiles (12) shaped substantially symmetrical to form a linear guide. Between the two opposite edge profiles (12) forming this linear guide is here arranged a moving carriage (16), whereby the motion of the carriage is supported by at least two bearing units (18) supported on opposite edge profiles.

A height-adjustable desk includes a desk board and a base. Two first lifting arms and one second lifting arm are disposed between the desk board and the base. The two first lifting arms are disposed at both sides of the desk board respectively. The second lifting arm is located between the two first lifting arms and spatially intersected with the two first lifting arms to be distributed in an X shape. The upper ends of the two first lifting arms are rotatably connected to a first end of the desk board, and the lower ends of the two first lifting arms are slidably connected to a first end of the base. The upper end of the second lifting arm is slidably connected to a second end of the desk board, and and the lower end of the second lifting arm is hinged to a second end of the base.

A height-adjustable desk includes a desk board and a base. Two first lifting arms and one second lifting arm are disposed between the desk board and the base. The two first lifting arms are disposed at both sides of the desk board respectively. The second lifting arm is located between the two first lifting arms and spatially intersected with the two first lifting arms to be distributed in an X shape. The upper ends of the two first lifting arms are rotatably connected to a first end of the desk board, and the lower ends of the two first lifting arms are slidably connected to a first end of the base. The upper end of the second lifting arm is slidably connected to a second end of the desk board, and and the lower end of the second lifting arm is hinged to a second end of the base.

An apparatus for positioning an electronic display is described. The apparatus can be combined with an existing work surface to provide a multi-position workstation. In some cases, the apparatus includes a mounting portion configured to support an electronic display and a keyboard. The mounting portion may be movable with respect to the work surface between multiple positions, including for example, a sitting position and a standing position. Methods for positioning an electronic display and a keyboard are also included.