In a vehicle with aerial work platform, while not receiving an operation instruction to move down the work platform from the rise and fall operating device, when moving down of the work platform is detected based on the detecting result of the rise and fall position detecting device, the rise and fall control device controls the first switching valve to switch so that the bottom-side oil chamber is connected to the hydraulic pump and controls the second switching valve to switch to the first state so as to make oil pressure in the bottom-side oil chamber be kept by the second switching valve and the check valve. Then, the rise and fall hydraulic cylinder is stopped to be contracted.

In a vehicle with aerial work platform, while not receiving an operation instruction to move down the work platform from the rise and fall operating device, when moving down of the work platform is detected based on the detecting result of the rise and fall position detecting device, the rise and fall control device controls the first switching valve to switch so that the bottom-side oil chamber is connected to the hydraulic pump and controls the second switching valve to switch to the first state so as to make oil pressure in the bottom-side oil chamber be kept by the second switching valve and the check valve. Then, the rise and fall hydraulic cylinder is stopped to be contracted.

A lifting machine comprising a base and a carrying platform, wherein a lifting mechanism for lifting the carrying platform and a power mechanism for supplying power to the lifting mechanism are arranged between the carrying platform and the base. The lifting machine of the present disclosure has simple structure, small volume and good portability, which may satisfy various needs of mobile use such as mobile maintenance, on-the-spot service and road rescue.

A lifting machine comprising a base and a carrying platform, wherein a lifting mechanism for lifting the carrying platform and a power mechanism for supplying power to the lifting mechanism are arranged between the carrying platform and the base. The lifting machine of the present disclosure has simple structure, small volume and good portability, which may satisfy various needs of mobile use such as mobile maintenance, on-the-spot service and road rescue.

A vehicle lift comprising a movement system configured to be installed in a pit in the ground, a platform engaged with the movement system and movable entering to and exiting from the pit, at least one arm carried by the platform and configured for contacting a vehicle to be lifted. The arm is movable between an extended position and a retracted position. The lift comprises a stop movable relative to the platform between a grip position where it engages the arm and a release position where it disengages the arm. The lift comprises an actuator carried by the platform and active on the stop to move said stop between the grip position and the release position.

A vehicle lift comprising a movement system configured to be installed in a pit in the ground, a platform engaged with the movement system and movable entering to and exiting from the pit, at least one arm carried by the platform and configured for contacting a vehicle to be lifted. The arm is movable between an extended position and a retracted position. The lift comprises a stop movable relative to the platform between a grip position where it engages the arm and a release position where it disengages the arm. The lift comprises an actuator carried by the platform and active on the stop to move said stop between the grip position and the release position.

The present invention discloses a multifunctional vehicle lifting, steering, moving and obstacle crossing device. The apparatus is composed of a rotating mechanism, a lifting mechanism, a running mechanism and a control mechanism, is mounted at a bottom of an automobile, can be conveniently folded at the bottom of the automobile when not used at ordinary times, and has characteristics of portability, flexibility, no space occupation and easy operation. The apparatus can realize functions of a vehicle, such as lifting, rotating, moving and the like, in a wired or wireless control manner, and effectively overcome defects that the vehicle cannot realize four-wheel off-ground, entire side movement and in-situ rotation or pass through a narrow road or stride across a wide ditch or cross a high and narrow obstacle, thereby completing relatively difficult tasks of the vehicle, such as parking, moving, turning-around and turning in a narrow space, crossing ditches etc.

An apparatus for aligning tubes of a heat exchanger includes a generally planar body having an insertion end and an actuator end, a first driving member received by the body and extending between the insertion end and the actuator end, the first driving member being movable axially with respect to the body, and a first biasing member operatively connected to the first driving member. The first driving member is actuatable to move the first biasing member between a clearance position in which the first driving member lays generally flat within respect to the body, and an extended position in which the first biasing member extends generally perpendicular from the body.

An insulated metal panel (IMP) assembly system includes a panel assembly table and a boom IMP attachment. The panel assembly table allows for assembly of a panel module at ground level. The boom IMP attachment features a quick-coupler couplable to the boom of a telehandler, a swivel coupler column, one or more tilt linear actuators configured to tilt the orientation of a panel module, and one or more hydraulic rotation linear actuators configured to rotate the orientation of the panel module. The boom IMP attachment also includes a jib frame, a plurality of jib arms spanning outwards from the jib frame, and one or more clamp header rails having a plurality of clamp assemblies, each configured to grip a frame member of the panel frame of the panel module. The boom IMP attachment may hoist, tilt, and rotate the panel module.

A side saddle slingshot drilling rig includes a left and right substructure including a left and right lower box. The side saddle slingshot drilling rig includes a drill rig floor mechanically and pivotably coupled to the left and right lower boxes such that it is pivotably movable from a lowered position to a raised position. The drill rig floor includes a V-door. The V-door is positioned on the V-door side of the drill rig floor. The V-door side of the drill rig floor is oriented to face the right substructure. A mast coupled to the drill rig floor may include an open side, defining a mast V-door side. The mast V-door side may be oriented to face the right substructure. The mast may pivot into its raised position or may be a bootstrap mast.