Intelligent oxygen supply device for underground engineering

The intelligent oxygen supply device comprises a cart body and limiting rods, the limiting rods are transversely welded to the upper portion and the lower portion of the inner side of the cart body respectively, a sliding way is arranged between the two sides of the interior of each limiting rod, and a box is longitudinally and movably connected between the inner sides of the sliding ways in a clamped mode. Three sets of containing grooves are formed in the box body, and oxygen tanks are placed at the bottom ends of the inner sides of the containing grooves. According to the intelligent oxygen supply device used in the underground engineering, an extrusion plate is longitudinally welded between the right sides of springs, a box body is attached to the extrusion plate on the left side in the cart body, a rotating block on the right side of the exterior of the cart body is rotated, so that the rotating block is clamped and prevents the box body from leaving the cart body, and the spring on the left side of the