A dynamic system for a lifting apparatus is disclosed. The dynamic system includes a first motor and a second motor decoupled from the first motor. During the ascent of the lifting apparatus, only the first motor is involved in the driving of the lifting apparatus. During the descent of the lifting apparatus, only the second motor is involved in charging the battery system. Since the first motor and the second motor are decoupled from each other, the first motor can have a high driving efficiency and the second motor can have a high power generation efficiency, the problem that when only one motor is adopted, the motor needs to balance between the driving efficiency and power generation efficiency is solved. The energy recovery rate of this invention can be increased from 10% in the prior art to about 30%.

Shoring blocks used as pedestal shoring under the cargo loading ramps of cargo planes and also used as sleeper shoring to support the weight of rolling stock loaded into cargo aircraft provide stackable foam structures of various and applicable shapes and sizes designed for particular cargo aircraft, each foam structure alternatively provided with a protective coating or fabric, reinforced with a stiffener or having fabric webbing integrated within or connecting more than one foam structure.

An eccentric loading adjusting mechanism (5) and method for a parallel suspension platform. The adjusting mechanism (5) comprises a rotary platform (5-2) and a support guide frame (5-3) disposed on the rotary platform (5-2), wherein the base of the rotary platform (5-2) is fixedly connected to a suspension platform (4); a circular guide rail (5-8) is provided around the rotary platform (5-2); the support guide frame (5-3) is provided with two counterweight guide rails (5-15) and is connected to a rotary table of the rotary platform (5-2) by means of a rotary plate (5-17) on the support guide frame (5-3); and an electric drive pusher (5-6) drives a counterweight means (5-9) to move along the two counterweight guide rails (5-15), thereby eliminating eccentric loading.

An elevation apparatus can be used to raise and retain a connection line connected between a piece of moveable equipment and a stationary structure. The connection line has a first end configured to couple with the piece of moveable equipment, and an opposing second end configured to couple with a supply fitting. The elevation apparatus includes a resilient band having a first end and an opposing second end. The first end of the resilient band can be affixed to a mid-span portion of the connection line, and the second end can be stretched and affixed to an object at a height sufficient to impart a first tensioned length to the resilient band, such that the mid-span portion of the band elevates to a first vertical distance. The elevation apparatus further includes a hook configured to be attached to the object and secure the second end of the resilient band.

A base for a securing assembly having a lower end that secures objects to a structure, the base including, a base frame having a joining wall and at least two sidewalls extending from the joining wall to an opening for receiving the lower end in a cavity: a base pin extending between the sidewalls for attaching the base to the structure: an arm movable between an open position, wherein the arm is positioned such that the lower end is movable through the opening, and a securing position, wherein the arm inhibits movement of the lower end from the cavity.

An eccentric loading adjusting mechanism (5) and method for a parallel suspension platform. The adjusting mechanism (5) comprises a rotary platform (5-2) and a support guide frame (5-3) disposed on the rotary platform (5-2), wherein the base of the rotary platform (5-2) is fixedly connected to a suspension platform (4); a circular guide rail (5-8) is provided around the rotary platform (5-2); the support guide frame (5-3) is provided with two counterweight guide rails (5-15) and is connected to a rotary table of the rotary platform (5-2) by means of a rotary plate (5-17) on the support guide frame (5-3); and an electric drive pusher (5-6) drives a counterweight means (5-9) to move along the two counterweight guide rails (5-15), thereby eliminating eccentric loading.

This invention relates to lifting mechanisms. In particular this invention relates to lifting mechanisms for use in healthcare equipment such as beds. A lifting assembly comprises a telescopic post assembly including a first tubular member, a second tubular member slidingly engaged with the first tubular member, and a third tubular member slidingly engaged with the second tubular member, the first, second and third tubular members being coaxial; an actuator configured to move the second tubular member axially with respect to the first tubular member; and a pulley mechanism comprising a first wheel rotatably mounted at a first end of the second tubular member; a second wheel rotatably mounted at a second end of the second tubular member; a first length of cable having a first end fixed to the first tubular member and a second end fixed to the third tubular member, the first length of cable being engaged with the first wheel; and a second length of cable having a first end fixed to the first tubular member and a second end fixed to the third tubular member, the second length of cable being engaged with the second wheel, wherein the pulley mechanism is arranged such that the movement of the third tubular member relative to the first tubular member is at a greater speed than the movement of the second tubular member relative to the first tubular member.

A foldable rail assembly includes a lower rail assembly extending upwardly away from a platform, an upper rail assembly extending above the lower rail assembly, a rotatable member coupling the upper rail assembly to the lower rail assembly such that the upper rail assembly is movable between a first position and a second position, and a first latch and a second latch configured to limit movement of the upper rail assembly away from the second position when engaged. In the first position, the foldable rail assembly extends from the platform to a first height. In the second position, the foldable rail assembly extends from the platform to a second height, the first height being larger than the second height. The first latch engages in response to the upper rail assembly entering the second position. The second latch is manually engaged by an operator.

The disclosed embodiments relate to a drive-on leveling device that is adapted for single and tandem axle recreational trailers. It is placed beneath the trailer wheel that supports the weight of the vehicle, on the side that has the lower elevation. The leveling device's two-block assembly creates a level plane that is stationary. The incline block and chock block are each designed with tines that allow insertion into one another for quick leveling and chocking.

An adjustable door support for acquiring a door gap and supporting a door slab at a height off a floor equal to the door gap. The adjustable door support comprises a bendable sheet including two outer and two inner sections, and two tie devices. The two inner sections are disposed at an oblique angle relative to one another and form a support slot for receiving a portion of the door slab therein. The support slot has door support edges for engaging the door slab. Each of the tie devices includes a cable tie threaded through the inner sections of the bendable sheet and a locking washer attached to the cable tie by sliding over the cable ties in one direction only. The locking washers are lockable on the cable ties to adjust a distance between the support edges of the adjustable door support and the floor.