UNIVERSAL DUAL-LINK PIPE ELEVATOR Russian patent published in 2024 - IPC E21B19/06 

FIELD: machine building; oil and gas industry.

SUBSTANCE: invention relates to lifting and handling devices in oil and gas industry. Device includes a body, a replaceable pipe grip, a replaceable insert, a grip handle, a retainer on the grip handle, pins fixing links against falling out. Base of the housing is made in the form of a crescent with two horizontally directed lugs. In the lugs there are mouths for insertion of links; the lugs have vertical holes for pins and holes for installation of cotter pins fixing pins against falling out. In the housing there is a mouth for insertion of the pipe, on the opposite side of the mouth the housing contains a horizontal slot for the possibility of the working stroke of the grip handle with a retainer, at the edge of one side of the slot there is a hole in the form of a sweep for the retainer, and on the opposite side there is a sweep for the rectangular part of the retainer. Inside the housing there is a cylindrical bore forming in the lower part of the base of the housing a support platform for installation of the insert and grip. Replaceable grip and replaceable insert are made in the form of a half-moon. In the support platform of the housing there installed are locking pins or screws for fixing the replaceable insert. Upper plane of the grip performs the function of a support platform for pipe couplings, a mouth is made in the grip for insertion of the pipe, on the upper plane at the edge of the circumference of the grip there is an annular collar, threaded hole with countersink and at least one annular groove interacting with stoppers are made on the outer side of the gripper. On the grip handle there is an annular collar and an annular groove. Wrench flats are made on the gripper handle. Retainer is made in the form of a sleeve, at one end of which there are flats parallel to the geometrical axis of the retainer, which form a rectangular shape. Retainer comprises holes for installation of locking bolts or screws or balls interacting with annular groove of gripper handle. Retainer comprises a hole for installation of a pin, by means of which the retainer rotates around its axis until the flats coincide with the horizontal slot, and the grip with the help of the handle is turned aside until it stops and is brought into the "open" position, and in the "closed" position the grip handle is turned in the opposite direction against the stop, after which the retainer is turned by flats perpendicular to the slot.

EFFECT: simplified design, increased reliability, efficiency and service life, expanded technical capabilities.

5 cl, 9 dwg