Rotating handle with self-locking function

The utility model relates to a rotating handle with a self-locking function, which comprises a shell with a shaft hole at the front end and a fixing pin with one end used for supporting a main body, and the other end of the fixing pin penetrates through the shaft hole and then is in threaded connection with a knob. The device is characterized in that a taper sleeve which can rotate along with the shell and can axially move along the fixing pin is further installed in the shaft hole, the taper sleeve is arranged on the fixing pin in a sleeving mode, the taper sleeve and the fixing pin are matched through a taper hole and a taper body, and the taper sleeve is further connected with a rotary knob so that the taper sleeve can axially move on the fixing pin along with rotation of the rotary knob. And the fixing pin is tightly matched with or loosened from the fixing pin. After the structure is adopted, the rotating handle can be in a working state or a storage state as long as the rotating handle is operated by a