Abstract: A security robot having a fire extinguisher mounted thereon according to an embodiment of the present invention includes: a box unit in which a fire extinguisher is aligned and mounted; and an actuator unit placed on one side of the box unit, wherein the actuator unit includes: a motor unit installed on the first bracket and configured to output rotational power; a first gear installed on a motor shaft of the motor unit; and a second gear rotatably installed on the first bracket, wherein one side of the second gear is provided with a gear so that the gear is engaged with the first gear, and another side of the second gear is provided with a pusher face so that the pusher face presses a valve button of the fire extinguisher when the motor unit is operated.

Abstract: Provided is a security robot having an image stabilization function, including: a base plate installed on a security robot; a turn gear disposed under the base plate, and provided with a first hollow portion to allow a cable to pass through; a turn housing rotatably installed on the base plate, provided with the turn gear installed under it, and provided with a second hollow portion through which the cable passes; a turn plate installed on the turn housing, and provided with a fourth hollow portion through which the cable passes; and an electrical and electronic device disposed on the turn plate, wherein power is supplied from a main body of the security robot to the electrical and electronic device and electrical signals are transmitted and received through the cable.

Abstract: Provided is an orientation-stabilizing device, including: a motor stator having a coil disposed on an outer circumferential surface of a center shaft, the coil being magnetized when electricity flows through it; a motor rotor made of a permanent magnetic material, disposed outside the coil, and configured to rotate in response to the magnetism; a flywheel having a central inner circumferential surface fixed to the motor rotor to rotate together with the motor rotor; a cover installed on the center shaft and configured to surround the flywheel; and a bearing installed between the flywheel and the cover, and configured to allow the flywheel to rotate in an aligned state inside the cover, wherein the motor stator and the motor rotor do not protrude toward a surface of the cover.