Drone-type lifesaving equipment dropping device

A drone-type lifesaving equipment dropping device comprising:

• an unmanned aerial vehicle having a propeller and a rotor configured to rotate the propeller;
• a holding member which is installed to the unmanned aerial vehicle and configured to be operated by wireless control;
• and
• a lifesaving equipment which is detachably engaged to the holding member and is dropped from the holding member after the lifesaving equipment is disengaged from the holding member,
• wherein the holding member includes at least one horizontal frame, a plurality of support arms arranged on the horizontal frame so that the support arms are expanded or retracted in diametric direction,
• a motor disposed at a center of the horizontal frame, and
• a link member configured to connect the motor and each proximal end of the support arms and transfer rotating movement of the motor to expanding or retracting movement of the support arms, and
• the holding member supports the lifebuoy in the first state by expanding the support arms so that the support arms are inserted into slots formed on an inner peripheral surface of the lifebuoy, are brought into close contact with the inner peripheral surface of the lifebuoy, or expand to a bottom of the lifebuoy, while the support arms are retracted in the second state, so that the lifebuoy is separated from the holding member.