The utility model belongs to the technical field of gear motors, and particularly relates to a protection device for a miniature gear motor, which comprises a base, a supporting seat is fixedly arranged on the inner wall of the bottom of the base, a gear motor body is arranged at the top of the supporting seat, and a plurality of slots are arranged at the top of the base. According to the utility model, through the arrangement of the
insertion plate, the storage hole, the spring, the arc-shaped groove and the
insertion groove, after a motor is placed on the supporting seat, a plurality of ejector rods are extruded, the ejector rods extrude the guide plate and the spring, when one end, far away from the guide plate, of each ejector rod is attached to the inner wall of the arc-shaped groove, the ejector rods are loosened, the upper cover is pressed downwards, the upper cover drives the
insertion plate, and then the insertion plate drives the ejector rods to move; when the ejector rod moves to the position of the positioning hole, the ejector rod is pushed by the spring and pops out of the positioning hole, the upper cover is installed and positioned, the upper cover is rapidly installed on the top of the base, the gear motor body can be protected, the gear motor body can be prevented from being corroded by rainwater or collided by external
foreign matter, and the service life of the motor is prolonged.