Boomerang

Abstract

The present invention discloses a boomerang, which comprises a flight component, a central shaft and a protective device, wherein the flight component comprises at least one rotating device and a driving device; The center of the shaft runs through the center axis of the maximum diameter plane formed when the rotating device rotates, and the protective device is composed of a plurality of ribs connected with each other and arranged around the flight component. The boomerang is safer in use, better in flying performance, more ornamental and playable.

What is claimed is: 
     
         1 . A boomerang, comprising: a flight component, wherein the flight component comprises at least one rotating device, a driving device and a bracket with a cavity, and the cavity of the bracket is internally provided with a motor, a power supply, and a power supply; a maximum diameter rotation plane formed by the rotation of the rotating device defines the outer perimeter of the flight component, and the rotating device rotates coaxially around a center axis defined by the maximum diameter rotation plane;
 a central shaft coinciding with the center axis, wherein the two ends of the central shaft are respectively connected with a first base and a second base, and the first base and the second base are respectively separated from the upper and lower ends of the flight component;   a protective device arranged around the flight component, wherein the protective device is composed of a plurality of ribs connected with each other, and an inner diameter of the protective device corresponding to the outer perimeter of the flight component is larger than the outer perimeter.   
     
     
         2 . The boomerang according to  claim 1 , wherein the protective device has a hollow surface. 
     
     
         3 . The boomerang according to  claim 2 , wherein the ribs are made of elastic materials. 
     
     
         4 . The boomerang according to  claim 1 , wherein the rotating device is composed of a first propeller and a second propeller, and the rotation directions of the first propeller and the second propeller are opposite. 
     
     
         5 . The boomerang according to  claim 4 , wherein an outer periphery of the second propeller is formed with an outer ring, and a radius of the outer ring is larger than a rotating radius of blades of the second propeller. 
     
     
         6 . The boomerang according to  claim 5 , wherein the outer ring is fixedly connected with the bracket through the blades of the second propeller. 
     
     
         7 . The boomerang according to  claim 6 , further comprising a light bar electrically connected with the circuit board. 
     
     
         8 . The boomerang according to  claim 7 , wherein one end of the light bar is fixedly connected with an upper end of the bracket, the other end of the light bar is fixedly connected with a lower end of the bracket, and the light bar rotates synchronously with the bracket. 
     
     
         9 . A boomerang, comprising: a flight component, wherein the flight component comprises at least one rotating device, a driving device and a bracket with a cavity; a maximum diameter rotation plane formed by the rotation of the rotating device defines an outer perimeter of the flight component, and the rotating device rotates coaxially around a center axis defined by the maximum diameter rotation plane;
 a central shaft coincident with the center axis, wherein one end of the central shaft is connected with a first base, and the first base is separated from the upper and lower ends of the flight component;   a protective device arranged around the flight component, wherein the protective device is composed of a plurality of ribs connected with each other, and an inner diameter of the protective device corresponding to the outer perimeter of the flight component is larger than the outer perimeter.