An airplane jack apparatus for lifting a flat main spring landing gear includes a base that supports a hydraulic jack and an upright member, to which a lift arm is pivotably attached. The lift arm has a rotatable cross member that engages a piston that raises out of the hydraulic jack, and the lift arm has a horizontal lifting portion that engages the ground-facing end of a landing gear. The base of the airplane jack apparatus has wheels to allow the jack to move as the angle of a landing gear changes while being lifted.

An adapter assembly for lifting a vehicle includes an adapter, a pin, and a cross member. The adapter includes a pair of plates and a tubular member. The pair of plates have a recess positioned therebetween. The pair of plates define a pair of pin apertures. The recess is configured to receive a portion of a frame of the vehicle such that the pair of pin apertures aligns with a frame aperture defined by the portion of the frame. The tubular member is coupled to the pair of plates. The tubular member defines an adapter aperture. The pin is selectively insertable through the pair of pin apertures and the frame aperture to couple the adapter to the portion of the frame. The cross member is selectively insertable through the adapter aperture of the tubular member.

An adapter assembly for lifting a vehicle includes an adapter, a pin, and a cross member. The adapter includes a pair of plates and a tubular member. The pair of plates have a recess positioned therebetween. The pair of plates define a pair of pin apertures. The recess is configured to receive a portion of a frame of the vehicle such that the pair of pin apertures aligns with a frame aperture defined by the portion of the frame. The tubular member is coupled to the pair of plates. The tubular member defines an adapter aperture. The pin is selectively insertable through the pair of pin apertures and the frame aperture to couple the adapter to the portion of the frame. The cross member is selectively insertable through the adapter aperture of the tubular member.

A hydraulic jack includes an oil cylinder, an oil tank, and an oil storage barrel. The oil storage barrel includes a front portion and a back portion which are opposite to each other; an oil outlet of the oil cylinder is connected with an oil inlet at the front portion of the oil storage barrel by means of an oil inlet pipe; and an oil inlet of the oil tank is connected with an oil outlet at the front portion of the oil storage barrel by means of an oil outlet pipe, the oil inlet pipe and the oil outlet pipe are provided with switching valves for alternatively turning on the oil inlet pipe and the oil outlet pipe. A partition plate that is capable of moving along a barrel wall and an elastic telescoping member are provided inside the oil storage barrel.

A rolling vehicle jack for elevating a vehicle includes a base. A spring is coupled to a top of the base and is positioned in an internal space of the base. A sphere is rollably coupled to the spring and selectively extensible through a penetration that is positioned through a bottom of the base. A lift is coupled to and selectively extensible from the top of the base. An actuator, positioned in the internal space, is coupled to the base and operationally coupled to the lift. The sphere is configured to roll on a surface such that the base is reversibly positionable under a vehicle. The actuator is positioned to motivate the lift to extend vertically from the base, wherein the sphere is retracted into the base. A vehicle that is positioned above the lift is raised and is positioned for maintenance, such as changing of tires, wheels and tracks.

A rolling vehicle jack for elevating a vehicle includes a base. A spring is coupled to a top of the base and is positioned in an internal space of the base. A sphere is rollably coupled to the spring and selectively extensible through a penetration that is positioned through a bottom of the base. A lift is coupled to and selectively extensible from the top of the base. An actuator, positioned in the internal space, is coupled to the base and operationally coupled to the lift. The sphere is configured to roll on a surface such that the base is reversibly positionable under a vehicle. The actuator is positioned to motivate the lift to extend vertically from the base, wherein the sphere is retracted into the base. A vehicle that is positioned above the lift is raised and is positioned for maintenance, such as changing of tires, wheels and tracks.

The present invention provides a foot type lifting airbag device, which relates to the field of lifting airbag equipment. The foot type lifting airbag device comprises a support base plate, and the top of the support base plate is fixedly provided with a foot pedal device body. The interior of the foot pedal device body is provided with two piston guide cylinders, and the top of both piston guide cylinders is equipped with a piston pressure pedal. The bottom of both piston guide cylinders is provided with a pressure channel, and the bottom of both pressure channels is provided with a piston gas channel inlet.

The present invention provides a foot type lifting airbag device, which relates to the field of lifting airbag equipment. The foot type lifting airbag device comprises a support base plate, and the top of the support base plate is fixedly provided with a foot pedal device body. The interior of the foot pedal device body is provided with two piston guide cylinders, and the top of both piston guide cylinders is equipped with a piston pressure pedal. The bottom of both piston guide cylinders is provided with a pressure channel, and the bottom of both pressure channels is provided with a piston gas channel inlet.

An adapter assembly includes an adapter, a fastener, and a cross member. The adapter includes a first plate defining a first aperture and a second aperture, and a second plate defining a third aperture and a fourth aperture. The second plate is spaced from the first plate such that a recess is positioned therebetween. The recess is configured to receive a portion of a frame of a vehicle such that the first aperture and the third aperture align with a frame aperture defined by the portion of the frame. The fastener is selectively insertable through the first aperture of the first plate, the second aperture of the second plate, and the frame aperture to couple the adapter to the portion of the frame. The cross member is selectively insertable through the second aperture and the fourth aperture. The cross member is configured to engage with a lift device.

An adapter assembly includes an adapter, a fastener, and a cross member. The adapter includes a first plate defining a first aperture and a second aperture, and a second plate defining a third aperture and a fourth aperture. The second plate is spaced from the first plate such that a recess is positioned therebetween. The recess is configured to receive a portion of a frame of a vehicle such that the first aperture and the third aperture align with a frame aperture defined by the portion of the frame. The fastener is selectively insertable through the first aperture of the first plate, the second aperture of the second plate, and the frame aperture to couple the adapter to the portion of the frame. The cross member is selectively insertable through the second aperture and the fourth aperture. The cross member is configured to engage with a lift device.