The utility model discloses a kind of for tracked vehicle lateral support structure, it is related to tracked vehicle lateral support technical field, including hydraulic support foot, anti-shrink component;The anti-shrink component includes self-locking unit, unlocking unit.The utility model is provided with anti-shrink component, by the close adhesion of multiple self-locking ball and
piston rod outer wall, when the oil
pipe of hydraulic support foot leaks due to unexpected situation, the tendency of
piston rod has to the inside shrink of hydraulic support foot, the tendency of
piston rod relative to self-locking ball moves upward can give the upward thrust of self-locking ball, simultaneously, under the location guiding effect of the
extrusion of compression spring and conical ring groove, with the shrink tendency to
piston rod direction, by the cooperation of the above multiple forces, multiple self-locking ball can be locked to
piston rod, avoid
piston rod shrink, in turn make hydraulic support foot can keep stable, provide sufficient
processing time for unexpected situation, further improve the safety of aerial work.