Security robot having fire extinguisher mounted thereon

A security robot having a fire extinguisher mounted thereon, comprising:

• 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 comprises:
• a motor unit installed on a 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;
• further comprising a stopper pin installed on the first bracket,
• wherein the stopper pin limits reverse rotation such that the second gear cannot rotate further when the second gear rotates in reverse, and
• the reverse rotation limitation of the second gear is set to a posture of the second gear when the fire extinguisher is not in operation,
• wherein a radius of a pitch circle of the second gear is 1.5 to 2.5 times longer than a distance from a center of rotation of the second gear to a point where the pusher face touches the valve button, and the pitch circle of the second gear is 3 to 4 times longer than a pitch circle of the first gear,
• wherein a base wall is vertically arranged inside the box unit,
• a pocket mount is concavely formed in the base wall, and
• a portion of a valve assembly of the fire extinguisher is accommodated in the pocket mount so that a posture of the fire extinguisher is aligned and a position of the valve button is set;
• further comprising:
• a camera unit for taking video images, the camera unit being equipped with a thermal imaging camera and a video camera;
• a drive unit configured to drive the security robot to a desired location;
• and
• a communication circuitry configured to transmit video data collected from the security robot to a remote management room and receive a command from the remote management room.