US Patent 9511500 Cutting tool

A cutting tool includes an upper handle, a lower handle, a blade, at least one quick release device and a connection part. The cutting tool features on that both the blade and the connection part are pivoted quickly by the quick release device without any special tools. When the cutting tool is in an open state or a closed state, the quick release device disposed on the connection part is switched and moved in a circular part on one end of the blade so as to cut.