Valve connecting device of drilling tool

The utility model relates to a tool used for mounting the valve of a drilling tool, in particular to a valve connecting device of the drilling tool. The device comprises a left arc-shaped catch plate and a right arc-shaped catch plate; the right back end of the left arc-shaped catch plate is hinged with the left back end of the right arc-shaped catch plate; the right front end of the left arc-shaped catch plate is fixed with the left front end of the right arc-shaped catch plate through a locking mechanism; and a left lifting handle and a right lifting handle are respectively arranged on the left arc-shaped catch plate and the right arc-shaped catch plate. The device has the advantages of reasonable and compact structure and convenient use. The valve of the drilling tool is arranged on the inner walls of the left arc-shaped catch plate and the right arc-shaped catch plate, and can be fast and conveniently mounted on the end head of the drilling tool through the lifting handles, therefore the installation is f