Real device of instructing of photoelectrical technique

The utility model discloses a real device of instructing of photoelectrical technique, including the real operation panel of instructing, the backup pad is all installed, two in the bottom both sidesof instructing the operation panel in fact the lifter plate that the level that is equipped with between the backup pad set up, the equal threaded connection of both sides intermediate position of lifter plate has the screw rod of vertical setting, the outside cover of screw rod is equipped with the spring, the one end of screw rod is rotated and is connected in real bottom of instructing the operation panel, and first gear is installed to the other end of screw rod, all weld one side bottom that the backup pad is close to mutually has the protection frame, two it is connected with the dwang to rotate between the protection frame, still be equipped with the second gear with a gear engagement in the protection frame, the second geared sleeve locate the dwang outer and with dwang fixed connection, adjustment handle