Water absorption test box for absorbent cotton

The utility model relates to the technical field of detection devices, and discloses an absorbent wool water absorption test box which comprises a shell, two sliding rails which are symmetrically distributed front and back are fixedly installed on the left side wall and the right side wall of an inner cavity of the shell, the opposite sides of the two sliding rails are slidably connected with idler wheels, and the idler wheels are arranged on the left side wall and the right side wall of the inner cavity of the shell. And the same fixing plate is fixedly installed on the opposite sides of the two rolling wheels, a connecting pipe is fixedly installed at the bottom of the fixing plate, a spring is fixedly installed on the top wall of an inner cavity of the connecting pipe, a blocking plate is fixedly installed at the bottom of the spring, and a pointer with one end extending to the outer side of the connecting pipe is fixedly installed on the front face of the blocking plate. The test box for the water absorpt