Anti-theft box for sampling gate

The utility model discloses an anti-theft box for a sampling gate, which comprises a box body, nuts and a bolt, wherein the box body is rectangular and formed by welding steel plates, the box body has five surfaces, an opening is formed on the left side of the box body, and semi-circular notches are symmetrically formed on the upper surface and the lower surface of the box body; a nut is welded on the inner wall of the rear surface of the box body, a bolt hole is formed on the front surface of the box body, a nut is also welded at the periphery of the bolt hole, the nuts are coaxial, and a nut is welded above the sampling gate; the bolt passes through the nut on the front surface of the box body and then the nut arranged above the sampling gate in sequence and finally is fastened on the nut on the inner wall of the rear surface of the box body; and the tail end of the bolt is hidden inside the nuts. In the anti-theft box, the sampling gate is fixedly packaged inside the box body that is formed by welding the