Disassembling and assembling positioning mechanism of optical lens

The utility model discloses a dismounting and positioning mechanism of an optical lens, which comprises an optical lens body and a lens connecting piece, a connecting sleeve can be in threaded connection with the lens connecting piece through the cooperative use of the connecting sleeve, an internal thread and an external thread, and a positioning hole, a positioning plate and a locking assembly are arranged to be in cooperative use, so that the optical lens can be dismounted and mounted conveniently. The connecting sleeve can be locked and positioned, the situation that the optical lens body deviates or accidentally falls off in the using process is avoided, the using stability can be improved, the contact area of the locking rod and the lens connecting piece can be reduced through the spherical part arranged at the end of the locking rod, and therefore friction generated during threaded connection is reduced, and the service life of the optical lens is prolonged. According to the optical lens connecting pie