An adapter assembly for lifting a vehicle includes an adapter defining a first pin aperture, a second pin aperture, and an adapter aperture, a first pin, a second pin, and a cross member removably received by the adapter aperture. The first pin is configured to be removably received by the first pin aperture and a first aperture defined by a frame of the vehicle to selectively couple the adapter to the frame. The second pin is configured to be removably received by the second pin aperture and a second aperture defined by the frame of the vehicle to selectively couple the adapter to the frame.

The present disclosure provides a hydraulic jack, including a base as a carrier for mounting other components; an inner cylinder barrel vertically fixed to the base, a sliding cavity being formed in the inner cylinder barrel; an outer cylinder barrel vertically and slidably fitted outside the inner cylinder barrel; a valve plug assembly slidably fitted in the sliding cavity, and the valve plug assembly being rigidly connected to the outer cylinder barrel via a valve plug rod and being able to slide synchronously with the outer cylinder barrel; a valve plug driving assembly mounted on the outer cylinder barrel; and a supporting component mounted on the side wall of the outer cylinder barrel in an up-down adjustable mode. The hydraulic jack of the present disclosure is compact in structure, high in strength, high in load capacity, long in stroke, and safe and reliable in use.

The present disclosure provides a hydraulic jack, including a base as a carrier for mounting other components; an inner cylinder barrel vertically fixed to the base, a sliding cavity being formed in the inner cylinder barrel; an outer cylinder barrel vertically and slidably fitted outside the inner cylinder barrel; a valve plug assembly slidably fitted in the sliding cavity, and the valve plug assembly being rigidly connected to the outer cylinder barrel via a valve plug rod and being able to slide synchronously with the outer cylinder barrel; a valve plug driving assembly mounted on the outer cylinder barrel; and a supporting component mounted on the side wall of the outer cylinder barrel in an up-down adjustable mode. The hydraulic jack of the present disclosure is compact in structure, high in strength, high in load capacity, long in stroke, and safe and reliable in use.

A jack with a double high-pressure structure is provided, including a base, a pump body installed on the base, an oil cylinder, an oil drain valve, and a safety valve. The base is provided with a low-pressure check valve and a high-pressure check valve A. It is characterized in that a high-pressure check valve B is also installed on the base. The present invention can improve the safety performance during use and prolong the service life.

A pneumatic lifting device (1) comprises a pneumatic cylinder (2), and a pneumatic pump (3) for providing pressurized air to the pneumatic cylinder (2). There is a support (4) for supporting an object to be lifted, the support (4) can move between a raised position and a lowered position by the pneumatic cylinder (2). There is also a nozzle (5) for delivering pressurized air from the pneumatic pump (3). These features result in a pneumatic lifting device portable and versatile, as well as being well-suited for convenient storage in these vehicles.

A pneumatic lifting device (1) comprises a pneumatic cylinder (2), and a pneumatic pump (3) for providing pressurized air to the pneumatic cylinder (2). There is a support (4) for supporting an object to be lifted, the support (4) can move between a raised position and a lowered position by the pneumatic cylinder (2). There is also a nozzle (5) for delivering pressurized air from the pneumatic pump (3). These features result in a pneumatic lifting device portable and versatile, as well as being well-suited for convenient storage in these vehicles.

A cylinder assembly having a housing, a pump supported within the housing, a motor supported within the housing and operable to power the pump, and a power source supported by the housing and operable to supply power to the motor. A cylinder has a first end, an opposite second end, and a sidewall extending therebetween. A piston is movably supported by the cylinder, the pump being operable to supply hydraulic fluid to the cylinder to move the piston relative to the cylinder at least from a retracted position to an advanced position. A frame is coupled to the sidewall of the cylinder and supporting the pump and the motor.

A cylinder assembly having a housing, a pump supported within the housing, a motor supported within the housing and operable to power the pump, and a power source supported by the housing and operable to supply power to the motor. A cylinder has a first end, an opposite second end, and a sidewall extending therebetween. A piston is movably supported by the cylinder, the pump being operable to supply hydraulic fluid to the cylinder to move the piston relative to the cylinder at least from a retracted position to an advanced position. A frame is coupled to the sidewall of the cylinder and supporting the pump and the motor.

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 laboratory lift mechanism includes a platen rotatably engaged with a base in a laboratory cabinet. The platen can support a heavy piece of laboratory equipment. Lift bags are engaged with the base and can be inflated to raise the base with the laboratory equipment.