Sharp instrument box

The utility model belongs to the field of medical instruments, and particularly relates to a sharp instrument box which comprises a barrel, a first opening is formed in one end of the barrel, an opening groove is formed in the side edge of the barrel, a semicircular baffle is arranged in the barrel, and the semicircular baffle is located above the opening groove. The scissor device is rotationally installed in the cylinder through a connecting shaft and located on the upper side or the lower side of the semicircular baffle, the end, provided with a blade, of the scissor device is located in the cylinder, and the other end of the scissor device extends out of the open groove; and the telescopic plate is mounted between the scissor device and the semicircular baffle plate, and the telescopic plate is rotationally connected with the connecting shaft. In the using process, when a needle head on an infusion apparatus needs to be sheared, the needle head for infusion liquid extends into the cylinder body from the s