MAST DEVICE Russian patent published in 2013 - IPC H01Q1/27 

FIELD: construction.

SUBSTANCE: mast device comprises a base capable of installation onto a vehicle, support jacks, a telescopic mast, mechanisms of mast and its sections fixation in the working position, centrifugal fans of high pressure, connected in series, a mast with a pneumatic lift detached in plan via 120 degrees along the height on three levels and mechanisms of sections fixation made in the form of grips of adjacent sections relative to each other, which represent stops with inclined surface arranged in the lower part of the upper section, and spring-loaded thrust plates that are arranged in the upper part of the lower section.

EFFECT: increased reliability and load-carrying ability of a structure, reduced time for system deployment.

4 dwg