DEVICE FOR STABILIZATION OF TELESCOPIC EXTENSIONS WITH SEVERAL TENSIONING MEANS Russian patent published in 2023 - IPC B66F11/00 

FIELD: load-lifting equipment.

SUBSTANCE: invention relates to a device for lifting and stabilization of cargo. The device consists of frame (1), as well as crossbeam (2) located under it and receiving cargo, which can be moved by a height, using lifting means fixed on crossbeam (2), and which can be stabilized by means of two intersecting telescopic extensions essentially passing in an imaginary vertical plane parallel to a direction of movement of the frame, respectively having inner tube (3) and outer tube (4), pivotally articulated with the possibility of rotation to the frame from one side and to crossbeam (2) from the other side, which, in turn, are connected to each other with the possibility of synchronous movement, opposite to undesired changes in a length due to forces applied in a longitudinal direction of the crossbeam. Connection of telescopic extensions is performed by means of three tensioning means (5, 7) with a geometric closure. Each first tensioning means (5) with geometric closure is installed in corresponding inner tube (3) of the telescopic extension with corresponding inner pulley (10) and outer pulley (6) at both ends. Third tensioning means (7) with geometric closure is horizontally installed between two telescopic extensions on two rotatable pulleys (8), wherein pulleys (6, 8) respectively located on one side of corresponding first tensioning means (5) and third tensioning means (7) are connected to each other in such a way that rotational movements can be transferred between both pulleys (6, 8), and corresponding first tensioning means (5) with geometric closure is fixed on an inner wall of both outer tubes (4) so that rotational movement of outer pulleys (6) leads to corresponding synchronous movement of the corresponding telescopic extension.

EFFECT: structurally simple stabilization of a lifting device, not requiring complex maintenance, is provided.

10 cl, 2 dwg