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.

The safety barrier is for a lift platform that moves between a bottom position and an upper position and safety barrier includes a gate, defining a first plane. The gate includes a surface adapted to engage a cam assembly. The safety barrier has a mount that mounts to the lift platform and a mounting pin, defining an axis, that rotatably mounts the gate. The safety barrier also includes an upright post assembly having an upright post mounted to a non-movable surface, and the cam assembly that applies an upward force to the surface of the gate. When the lift platform moves to the bottom position, the assembly engages the surface and the gate rotates about the axis in the first plane into an open position, and when the lift platform moves to the upper position, the gate rotates about the axis in the first plane into a closed position.

The present disclosure relates to mobile radiographic inspection systems and lifting devices for mobile radiographic inspection systems, including those, for example, in the field of radiographic detection of large objects such as containers. In one illustrative implementation, the present disclosure describes a lifting device for a mobile radiographic inspection system, the device comprising a driving motor and at least two screw lifters, wherein the driving motor is connected to each of the screw lifters via a transmission, and a lower end of a lifting rod of the screw lifter is configured to connect with a radiographic inspection device. In implementations, the lifting device may further comprise a mounting assembly, which is adapted to connect the lifting device to a vehicle body of the mobile radiographic inspection system.

An underwater operation platform, including: a main body; two ducted propellers disposed at the tail end of the main body; a living building; pile legs; a tower crane; a submergence module; lifting devices; and a gantry crane. The main body includes a deck and a moonpool. The submergence module includes a support plate, a plurality of truss members, and a base plate. The living building disposed on the front end of the deck. The pile legs are disposed at the four corners of the main body, respectively. The deck includes two parallel pathways which are located at two sides of the moonpool, respectively, for supporting the gantry crane. The lifting devices are disposed on the deck and are close to four corners of the moonpool. The support plate and the base plate are integrated with the plurality of truss members.

An underwater operation platform, including: a main body; two ducted propellers disposed at the tail end of the main body; a living building; pile legs; a tower crane; a submergence module; lifting devices; and a gantry crane. The main body includes a deck and a moonpool. The submergence module includes a support plate, a plurality of truss members, and a base plate. The living building disposed on the front end of the deck. The pile legs are disposed at the four corners of the main body, respectively. The deck includes two parallel pathways which are located at two sides of the moonpool, respectively, for supporting the gantry crane. The lifting devices are disposed on the deck and are close to four corners of the moonpool. The support plate and the base plate are integrated with the plurality of truss members.

A handheld forcible entry device includes a tubular housing. A torque-input drive shaft is rotationally assembled to the housing, wherein the input shaft rotates about an axis perpendicular to a longitudinal axis of the housing. A helical pressure applicating lead screw is rotationally assembled to the housing, wherein the lead screw rotates about an axis parallel to the housing longitudinal axis. The input shaft and lead screw are rotationally synchronized by a gear assembly. A pressure applicator is threadably engaged with a helical threaded segment integrated in the lead screw. Rotation of the threading advances or retracts the pressure applicator from a stationary wedge plate. The separation of the pressure applicator and the stationary wedge plate separates a locked member from the associated frame, thus forcibly opening the locked member. The input shaft can be operated using a manually applied rotation or power applied rotation.

A handheld forcible entry device includes a tubular housing. A torque-input drive shaft is rotationally assembled to the housing, wherein the input shaft rotates about an axis perpendicular to a longitudinal axis of the housing. A helical pressure applicating lead screw is rotationally assembled to the housing, wherein the lead screw rotates about an axis parallel to the housing longitudinal axis. The input shaft and lead screw are rotationally synchronized by a gear assembly. A pressure applicator is threadably engaged with a helical threaded segment integrated in the lead screw. Rotation of the threading advances or retracts the pressure applicator from a stationary wedge plate. The separation of the pressure applicator and the stationary wedge plate separates a locked member from the associated frame, thus forcibly opening the locked member. The input shaft can be operated using a manually applied rotation or power applied rotation.

A lifting equipment includes a guide rail; a climbing assistant, suitable for ascending and descending along the rail, said climbing assistant having a carriage and a first anti-fall device installed between the said carriage and the said guide rail, and the said first anti-fall device being capable of locking onto the said guide rail when the said carriage experiences weightlessness; a second anti-fall device for installation between the said guide rail and the personnel working on the said carriage, and the said second anti-fall device being capable of locking onto the same guide rail as the said climbing assistant when the personnel on the said carriage become weightless. The first anti-fall device used for the climbing assistant and the second anti-fall device for the personnel are installed on the same guide rail, and allowing the guide rail to be installed in the most optimal position.

The tool is provided for removing a monument headstone adhered to the base and lifting the headstone. The tool includes a clamp to grip the headstone and a lever arm extending from the clamp to exert a tilting force on the headstone so as to break the adhesion between the headstone and the base. Then, a lifting assembly can be attached to the clamp to raise the headstone.

The tool is provided for removing a monument headstone adhered to the base and lifting the headstone. The tool includes a clamp to grip the headstone and a lever arm extending from the clamp to exert a tilting force on the headstone so as to break the adhesion between the headstone and the base. Then, a lifting assembly can be attached to the clamp to raise the headstone.