Steel structure base for plant building

The steel structure base for the plant building is characterized in that a vertically-arranged rectangular sleeve (2) is fixedly connected to the middle of the upper plate face of a bottom plate (1), containing grooves (18) are symmetrically formed in the inner end of the bottom plate (1) in the circumferential direction, and inserting rods (19) are connected into the containing grooves (18) in a sliding mode; a telescopic column (3) is slidably connected in the rectangular sleeve (2), the upper end of the telescopic column (3) is fixedly connected with a mounting plate (4), and a limiting mechanism is arranged in the lower end of the telescopic column (3); the rectangular sleeve (2) is sleeved with a horizontally-arranged pressed plate (16) in a sliding mode, the lower end of the first connecting piece (20) is rotationally connected with a second connecting piece (22) through an obliquely-arranged connecting rod (21), and the lower end of the second connecting piece (22) penetrates through the upper surface