Parallel shaft type speed reducer box body with self-locking sealing function

The utility model provides a parallel shaft type speed reducer box body with a self-locking sealing function, which comprises a base, a touch device arranged inside the base, a self-locking mechanism connected inside the touch device in a sliding mode and used for rapidly locking a speed reducer, and when the speed reducer box body is assembled, an upper top shell is placed on a touch outer shell, and the touch outer shell is connected with the self-locking mechanism in a sliding mode. At the moment, the upper top shell drives the self-locking wheel to rotate under the action of gravity, the self-locking wheel rotates to drive the self-locking wheel to move in the positive direction of the X axis due to the limiting action of the self-locking sliding groove, at the moment, the self-locking pressing block does arc motion under the action of the self-locking sliding groove, and in the process, the self-locking pressing block extrudes and locks the upper top shell. And the touch device is pressed under the actio