An apparatus/method for a conveyor belt lifter apparatus that can be manually-configured to accommodate differently-sized conveyor belts of conveyor systems. The apparatus includes a pair of lifts in between which a trough-shaped adjustable conveyor belt support arm is releasably-secured. An adjustable shaft coupler connects the lifts to allow simultaneous activation and movement of both lifts by an operator engaging only one lift. An adjustable base also allows the apparatus to be adjusted for the conveyor system size. These adjustable components comprise segments that can be releasably secured using quick-release pins. The height of the ends of the conveyor belt support arm can also be manually adjusted to eliminate any gap between the conveyor belt and the support arm before lift activation. Each lift comprises a manually-controlled screw jack with an extender formed thereon to allow the lifter apparatus to raise or lower the particular conveyor belt once the lifter apparatus is installed.

An apparatus/method for a conveyor belt lifter apparatus that can be manually-configured to accommodate differently-sized conveyor belts of conveyor systems. The apparatus includes a pair of lifts in between which a trough-shaped adjustable conveyor belt support arm is releasably-secured. An adjustable shaft coupler connects the lifts to allow simultaneous activation and movement of both lifts by an operator engaging only one lift. An adjustable base also allows the apparatus to be adjusted for the conveyor system size. These adjustable components comprise segments that can be releasably secured using quick-release pins. The height of the ends of the conveyor belt support arm can also be manually adjusted to eliminate any gap between the conveyor belt and the support arm before lift activation. Each lift comprises a manually-controlled screw jack with an extender formed thereon to allow the lifter apparatus to raise or lower the particular conveyor belt once the lifter apparatus is installed.

A moving body includes a housing, a traction motor, a plurality of elevator motors and a battery. The traction motor allows the housing to travel along a traveling surface. The plurality of elevator motors actuates an elevator unit, the elevator unit being configured to be elevated and lowered with respect to the traveling surface. The battery supplies electric power to the traction motor and the plurality of elevator motors. In the moving body, the plurality of elevator motors, the traction motor, and the battery are distributed when viewed perpendicularly to the traveling surface. The moving body further comprises at least one driving wheel to support the housing on the traveling surface. The plurality of elevator motors, the traction motor, and the battery fall, in a direction perpendicular to the traveling surface, within a range defined by a diameter of the at least one driving wheel.

A lifting column includes at least five column elements which are at least partly nested, and a first and a second drive arrangement. The first drive arrangement is configured to move the three innermost column elements relative to one another. The second drive arrangement is configured to move the three outermost column elements relative to one another.

A lifting column includes at least five column elements which are at least partly nested, and a first and a second drive arrangement. The first drive arrangement is configured to move the three innermost column elements relative to one another. The second drive arrangement is configured to move the three outermost column elements relative to one another.

A pressing device is provided, including: a main body, including a chamber; a pushing assembly, including a retractable mechanism movably inserted within the chamber, a first pushing board connected with the retractable mechanism and a restricting member embedded within the chamber and blocking the retractable mechanism from moving out of the chamber; a hydraulic mechanism, including a tube body which is connected with the main body and communicated with the chamber, a driving rod movably inserted within the tube body and a piston driven by the driving rod, the piston being configured to drive fluid to flow in or out of the chamber. Another pressing device is further provided, differing from the pressing device described above in that: the main body further including a channel, a wall of the chamber including at least one recession which is communicated with the channel.

A pressing device is provided, including: a main body, including a chamber; a pushing assembly, including a retractable mechanism movably inserted within the chamber, a first pushing board connected with the retractable mechanism and a restricting member embedded within the chamber and blocking the retractable mechanism from moving out of the chamber; a hydraulic mechanism, including a tube body which is connected with the main body and communicated with the chamber, a driving rod movably inserted within the tube body and a piston driven by the driving rod, the piston being configured to drive fluid to flow in or out of the chamber. Another pressing device is further provided, differing from the pressing device described above in that: the main body further including a channel, a wall of the chamber including at least one recession which is communicated with the channel.

A transmission assembly and a lifting column are provided. The transmission assembly includes a first screw rod, a second screw rod, a first transmission sleeve sleeved over the first screw rod, and an actuating device for driving the first transmission sleeve to rotate. An end of the first screw rod proximal to the actuating device is fixed, and an end of the second screw rod distant from the actuating device is fixed. A second transmission sleeve is disposed between the first screw rod and the second screw rod, the second transmission sleeve and the first transmission sleeve are synchronously rotatable and are axially extensible and retractable relative to each other, and both ends of the second transmission sleeve are in threaded transmission connection with the first screw rod and the second screw rod, respectively.

A transmission assembly and a lifting column are provided. The transmission assembly includes a first screw rod, a second screw rod, a first transmission sleeve sleeved over the first screw rod, and an actuating device for driving the first transmission sleeve to rotate. An end of the first screw rod proximal to the actuating device is fixed, and an end of the second screw rod distant from the actuating device is fixed. A second transmission sleeve is disposed between the first screw rod and the second screw rod, the second transmission sleeve and the first transmission sleeve are synchronously rotatable and are axially extensible and retractable relative to each other, and both ends of the second transmission sleeve are in threaded transmission connection with the first screw rod and the second screw rod, respectively.

A transmission assembly for a lifting column is provided. The lifting column includes an inner tube. The transmission assembly includes a hollow spindle, a transmission screw, a sleeve sleeved over the hollow spindle, a guide tube limited in the sleeve, and an actuating device actuating the guide tube to rotate. The guide tube and the hollow spindle are synchronously rotatable and axially expandable and retractable relative to each other. The transmission screw and the hollow spindle are synchronously rotatable and are axially expandable and retractable relative to each other. The actuating device is disposed in the inner tube and securely mounted to an upper end of the sleeve. A lower end of the sleeve is securely connected with a first transmission nut that is threadedly-fitted with the hollow spindle, the first transmission nut is securely coupled to the inner tube, and the upper end of the sleeve is movably disposed.