Underground valve opening and closing tool with wide application range

The utility model discloses an underground valve opening and closing tool with a wide application range, which comprises a box body provided with an adjustable-speed motor and a storage battery. A lengthening shaft is connected to a shaft of the adjustable-speed motor, a first bevel gear is fixedly connected to the lengthening shaft, the first bevel gear is meshed with a second bevel gear, and thefirst bevel gear and the second bevel gear are arranged in the shell. The second bevel gear is connected with a rotating shaft which is rotationally connected with the shell; one end of the rotatingshaft is connected with a sleeve with an inner square hole; the sleeve is detachably connected with an opening and closing head; the opening and closing head comprises a plug matched with the inner square hole; a groove is formed in the outer wall of the plug, and a locking rod is arranged in the groove in a sliding manner; one end of the locking rod is connected with a reset spring, and the otherend of the reset spring is