A pallet lift includes a base and a plurality of wheels supporting the base. A pair of contact surfaces are proximate a distal end of the base. A handle projects upward proximate a proximal end of the base. A rear support surface support is on the base between the contact surfaces and the handle. The base may include a pair of spaced apart rails capable of receiving columns of a pallet therebetween. In one embodiment, the base includes a pair of four-bar linkages and the handle is a lift handle configured to selectively collapse and extend the four-bar linkages to raise and lower a pallet.

A pallet lift includes a base and a plurality of wheels supporting the base. A pair of contact surfaces are proximate a distal end of the base. A handle projects upward proximate a proximal end of the base. A rear support surface support is on the base between the contact surfaces and the handle. The base may include a pair of spaced apart rails capable of receiving columns of a pallet therebetween. In one embodiment, the base includes a pair of four-bar linkages and the handle is a lift handle configured to selectively collapse and extend the four-bar linkages to raise and lower a pallet.

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.

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.

A ground manoeuvering device comprises a housing with a fastening device for the skid, a hydraulic apparatus as well as an outer wheel and an inner wheel on two aligned horizontal axles on the hydraulic apparatus, respectively one on the inside and one on the outside beside the skid. The hydraulic apparatus comprises an extendable piston and an engagement shaft with a lever attached in a swivellable manner. When the lever is rocked, the piston is extended from the hydraulic apparatus and thereby lifts the housing vertically upwards. The engagement shaft is aligned in the wheel running direction and the lever extends, in the operating state, in the wheel axle direction of the outer wheel. In addition, the lever comprises a tread section, in order to raise the fastened skid onto the two wheels using the hydraulic apparatus while standing conveniently beside the helicopter repeatedly stepping with the foot on the tread section.

A ground manoeuvering device comprises a housing with a fastening device for the skid, a hydraulic apparatus as well as an outer wheel and an inner wheel on two aligned horizontal axles on the hydraulic apparatus, respectively one on the inside and one on the outside beside the skid. The hydraulic apparatus comprises an extendable piston and an engagement shaft with a lever attached in a swivellable manner. When the lever is rocked, the piston is extended from the hydraulic apparatus and thereby lifts the housing vertically upwards. The engagement shaft is aligned in the wheel running direction and the lever extends, in the operating state, in the wheel axle direction of the outer wheel. In addition, the lever comprises a tread section, in order to raise the fastened skid onto the two wheels using the hydraulic apparatus while standing conveniently beside the helicopter repeatedly stepping with the foot on the tread section.

Disclosed is a lifting device, lifting system and method for lifting a vehicle. The lifting device includes a frame with a moveable carrier that is configured for carrying the vehicle; a drive which acts on the carrier and is configured for raising and/or lowering the carrier relative to the frame; a height sensing system that is configured for directly and/or indirectly measuring the height of the carrier; and a locking mechanism for mechanically locking the carrier at a desired height, including a moveable locking element capable of locking and unlocking the carrier. The locking mechanism includes a lock sensor for measuring the position of the locking element.

Disclosed is a lifting device, lifting system and method for lifting a vehicle. The lifting device includes a frame with a moveable carrier that is configured for carrying the vehicle; a drive which acts on the carrier and is configured for raising and/or lowering the carrier relative to the frame; a height sensing system that is configured for directly and/or indirectly measuring the height of the carrier; and a locking mechanism for mechanically locking the carrier at a desired height, including a moveable locking element capable of locking and unlocking the carrier. The locking mechanism includes a lock sensor for measuring the position of the locking element.

A jack with a protecting structure of a pump piston and a method for using the same are provided. The jack includes a housing, a base located inside the housing, and the protecting structure. An oil cylinder and a pump body are installed on the base. A pump piston is installed on the pump body. A spring is installed on the pump piston and the pump body. A stop protrusion is arranged on the pump piston. The protecting structure includes a dustproof sleeve and a wool felt. The dustproof sleeve is installed on the base and the pump piston. One end of the dustproof sleeve is detachably fixed on the base through a fastener. The other end of the dustproof sleeve is connected to an end portion of the pump piston. The shape of the dustproof sleeve is set into a wavy type.

A jack with a protecting structure of a pump piston and a method for using the same are provided. The jack includes a housing, a base located inside the housing, and the protecting structure. An oil cylinder and a pump body are installed on the base. A pump piston is installed on the pump body. A spring is installed on the pump piston and the pump body. A stop protrusion is arranged on the pump piston. The protecting structure includes a dustproof sleeve and a wool felt. The dustproof sleeve is installed on the base and the pump piston. One end of the dustproof sleeve is detachably fixed on the base through a fastener. The other end of the dustproof sleeve is connected to an end portion of the pump piston. The shape of the dustproof sleeve is set into a wavy type.