A modular boost system can be added to a jack to enable greater lift capacity of the jack. One example can involve a jack that is positionable at a well surface for moving a tubing string through a wellbore in a subterranean formation. The jack can include a frame and an adjustable plate that is alternately (i) attachable at a stationary location in the frame for fixing the adjustable plate at the stationary location or (ii) detachable from the stationary location in the frame to enable the adjustable plate to vertically move within the frame. A boost cylinder can be removably coupled to the adjustable plate and a base for selectively supplying an additional lift capability to the jack.

A modular boost system can be added to a jack to enable greater lift capacity of the jack. One example can involve a jack that is positionable at a well surface for moving a tubing string through a wellbore in a subterranean formation. The jack can include a frame and an adjustable plate that is alternately (i) attachable at a stationary location in the frame for fixing the adjustable plate at the stationary location or (ii) detachable from the stationary location in the frame to enable the adjustable plate to vertically move within the frame. A boost cylinder can be removably coupled to the adjustable plate and a base for selectively supplying an additional lift capability to the jack.

An article conveying equipment includes: a carrying apparatus (1), configured to carry one or more articles to be transported; a communication apparatus (3), configured to learn a height of a receiving end of a transferring apparatus matched with the article conveying equipment; and a height adjusting apparatus (2), when the article conveying equipment approaches the transferring apparatus, the height adjusting apparatus is configured to adjust the height of the carrying apparatus to the height matched with receiving end of the transferring apparatus.

A maintenance apparatus of a robot includes a pair of parallel rails removably installed on opposite sides in a predetermined direction to a robot, and a number of sliders, at least one of the number of sliders is attached to each of the pair of rails, and each of the sliders is configured to support an arm part or a reducer of the robot, and move the supported arm part or reducer along the rails.

A maintenance apparatus of a robot includes a pair of parallel rails removably installed on opposite sides in a predetermined direction to a robot, and a number of sliders, at least one of the number of sliders is attached to each of the pair of rails, and each of the sliders is configured to support an arm part or a reducer of the robot, and move the supported arm part or reducer along the rails.

The present disclosure provides a hydraulic lifting support, washing machine and controlling method. The hydraulic lifting support comprises a hydraulic support, a communicating device and a liquid storage device. The hydraulic support comprises a fix section installed at a bottom of a household appliance, a movable adjustment section sleeved with the fix section and axially movable relative to the fix section; an accommodation chamber is arranged between the fix section and the movable adjustment section; at least two hydraulic supports and a liquid storage device are communicated with each other by a communicating device; the hydraulic medium flows between the hydraulic supports along with the pressure changing, and the hydraulic medium drives the movable adjustment section to move axially for leveling under pressure; the hydraulic medium is injected into/sucked from the hydraulic supports through the liquid storage device to control the lifting and lowering adjustment of the hydraulic supports.

The lifting/lowering device (100) includes: a first plate member (51); a second plate member (52) to which the first plate member (51) is rotatably connected; a first expansion and contraction bag (31) which is disposed between the first plate member (51) and the second plate member (52) and is capable of expanding and contracting by gas supply and exhaust; a third plate member (53) to which the second plate member (52) is rotatably connected; a second expansion and contraction bag which is disposed between the second plate member (52) and the third plate member (53) and is capable of expanding and contracting by gas supply and exhaust. The first plate member (51), the first expansion and contraction bag (31), the second plate member (52), the second expansion and contraction bag (32) and the third plate member (53) are disposed so as to overlap in a plan view.

A monopodic surface preparation apparatus includes a linear actuator and a base coupled to the linear actuator. The linear actuator is pivotally moveable relative to the base when the linear actuator is in an extended position. A lock restricts pivotal movement of the linear actuator when the linear actuator is in a retracted position. A rotary surface preparation tool is coupled to the linear actuator. The rotary surface preparation tool is linearly moveable using the linear actuator and is pivotally moveable relative to the linear actuator. A control handle is coupled to the linear actuator to pivot the linear actuator relative to the base when the linear actuator is in the extended position. An actuator-controller is coupled to the control handle and configured to selectively actuate the linear actuator. A tool-controller is coupled to the control handle and configured to selectively energize the rotary surface preparation tool.

An apparatus is described that forms a lifting and lowering assembly for equipment racks, or other equipment items, by attaching lifters onto a computer equipment rack, and other datacenter equipment, in order to allow the equipment or equipment rack to be raised or lowered vertically without unloading the equipment rack. The lifters mounted on the equipment rack are controlled by a remote control passing signals through a power supply/relay control box that are connected to the rack mounted lifters. Through the attachment and activation of rack mounted lifters, the assembly may raise and lower fully loaded equipment racks in a vertical direction to assist in the maintenance and relocation of equipment racks or other data center equipment.

The present invention relates to a lifting column, lifting system and method for lifting a vehicle. The lifting column according to the invention includes a frame with a carrier configured for carrying the vehicle; a drive for driving the carrier in at least one of the ascent or descent of the carrier; and a modular power system configured for providing power to the drive and adapted to comprise a variable number of energy storage systems.