A telescopic pipe includes a base pipe having a base inner pipe rotated by external force, and a base outer pipe arranged to receive the base inner pipe; a connecting pipe having a connecting inner pipe coupled to the base inner pipe to be extendable to transfer rotational force, and a connecting outer pipe screw-coupled to the inner circumferential surface of the base outer pipe to be extendable; and a finishing pipe including a finishing inner pipe coupled to the connecting inner pipe to be extendable and to be rotated, and a finishing outer pipe that is interlocked by means of rotation of the finishing inner pipe and is screw-coupled to the inner circumferential surface of the connecting outer-pipe to be extendable, wherein the connecting outer pipe is interlocked by the rotational force of the extended finishing outer pipe and thus is extended and retracted along the base outer pipe.

Pumping machine (650, 750) comprising: at least two tubular elements (651, 751) containing pressurized gas and extending vertically in parallel and interconnected between them by means of a connecting element (652, 752); andan electromechanical lifting system (600, 700) comprising a first cylinder (601, 701), interconnected to the tubular elements (651, 751) and comprising a substance compressible by a piston (601b, 701b); and a screw (602, 702) with a vertical axis Y coinciding with the axis of the pumping machine (650, 750). The screw (602, 702) is inserted inside a second thrust cylinder (658, 758), connected in sliding manner inside the first cylinder (601, 701), and has a first end (602b, 702b) fixed to the connecting element (652, 752) and a second end (602a, 702a) configured for sliding inside the thrust cylinder (658, 758) and overlying a chamber (605, 705) comprising lubrication and cooling oil overlying the piston (601b, 701b).

Pumping machine (650, 750) comprising: at least two tubular elements (651, 751) containing pressurized gas and extending vertically in parallel and interconnected between them by means of a connecting element (652, 752); andan electromechanical lifting system (600, 700) comprising a first cylinder (601, 701), interconnected to the tubular elements (651, 751) and comprising a substance compressible by a piston (601b, 701b); and a screw (602, 702) with a vertical axis Y coinciding with the axis of the pumping machine (650, 750). The screw (602, 702) is inserted inside a second thrust cylinder (658, 758), connected in sliding manner inside the first cylinder (601, 701), and has a first end (602b, 702b) fixed to the connecting element (652, 752) and a second end (602a, 702a) configured for sliding inside the thrust cylinder (658, 758) and overlying a chamber (605, 705) comprising lubrication and cooling oil overlying the piston (601b, 701b).

Automated guided vehicles are provided having self-lifting mechanisms providing a compact and effective way to lift a heavy payload. The self-lifting AGVs are configured to mount and carry payloads that are not directly above the AGV, but rather may be in any location in a warehouse or facility. The self-lifting AGVs are able to automatically position themselves in front of a payload, automatically lift the payload, and place the payload on the AGV which is then able to move throughout a facility.

A lifting device includes a guide unit, a support unit and a lifting unit. The guide unit is extendable and retractable along a direction. The support unit is disposed in the guide unit and includes a securing connector fixed to a seat body and made of elastic material, a support tube connected to the securing connector, and a support member disposed on the support tube. The lifting unit includes a first rod-actuating screw member disposed on the support member and having a first threaded hole, and a threaded rod unit including a first threaded rod extending into the support tube and being threadedly engaged with the first threaded hole, such that the first threaded rod is rotatable by an external force and movable in the direction.

A lifting device includes a guide unit, a support unit and a lifting unit. The guide unit is extendable and retractable along a direction. The support unit is disposed in the guide unit and includes a securing connector fixed to a seat body and made of elastic material, a support tube connected to the securing connector, and a support member disposed on the support tube. The lifting unit includes a first rod-actuating screw member disposed on the support member and having a first threaded hole, and a threaded rod unit including a first threaded rod extending into the support tube and being threadedly engaged with the first threaded hole, such that the first threaded rod is rotatable by an external force and movable in the direction.

Electrical telescopic strut construction, movable between an extended locked position and a retracted unlocked position, comprising: an external cylinder (1); an inner cylinder (2); a screw (3) rotatable disposed within the inner cylinder (2); a drive (4) configured to rotate the screw (3); a nut (5) being movable with respect to the external cylinder (1) responsive to the rotation of the screw (3); at least one segment (6) located in a radial opening of the inner cylinder (2) and movable radially outward and inward in response to the movement of the nut (5) and configured to engage the external cylinder (1) when moved radially outward and not to engage the external cylinder (1) when moved radially inward, a second inner cylinder (7) located external to the first inner cylinder (2) and internal to the external cylinder (1).

Electrical telescopic strut construction, movable between an extended locked position and a retracted unlocked position, comprising: an external cylinder (1); an inner cylinder (2); a screw (3) rotatable disposed within the inner cylinder (2); a drive (4) configured to rotate the screw (3); a nut (5) being movable with respect to the external cylinder (1) responsive to the rotation of the screw (3); at least one segment (6) located in a radial opening of the inner cylinder (2) and movable radially outward and inward in response to the movement of the nut (5) and configured to engage the external cylinder (1) when moved radially outward and not to engage the external cylinder (1) when moved radially inward, a second inner cylinder (7) located external to the first inner cylinder (2) and internal to the external cylinder (1).

Apparatuses, systems, and methods are disclosed for providing a zero-G condition to a part to assist in allowing an operator to weightlessly move a part and assist an operator in the installation of a part into an assembly. Present methods, systems, and apparatuses further provide a zero-G lift able to alter the lift velocity of a part, from first predetermined velocity to a second predetermined velocity.

Apparatuses, systems, and methods are disclosed for providing a zero-G condition to a part to assist in allowing an operator to weightlessly move a part and assist an operator in the installation of a part into an assembly. Present methods, systems, and apparatuses further provide a zero-G lift able to alter the lift velocity of a part, from first predetermined velocity to a second predetermined velocity.