Vtol model aircraft

Abstract

A toy model aircraft aims to imitate V-22 Osprey with high emulation by being providing with flight characteristics of V-22 Osprey at a shrunk size of a toy specification. The model aircraft of the invention includes a fuselage, two fixed wings extended outwards from two sides of the fuselage and a tail wing at the tail of the fuselage. Each fixed wing includes a propeller engine installed at a distal end thereof and a rotor. The two rotors of the propeller engines rotating in opposite directions, and the propeller engines are coupled to form an integrated body through a rotary axle mechanism connecting to the wings. The fuselage holds a rotary axle driving means to drive the rotary axle mechanism to rotate and the propeller engines at two ends of the rotary axle mechanism are rotated concurrently between the vertical direction and horizontal direction.

1 . A vertical take-off and landing model aircraft, comprising a fuselage, two fixed wings extended outwards from two sides of the fuselage and a tail wing at a tail of the fuselage, wherein:
 each of the two fixed wings includes a propeller engine at a distal end, the propeller engine being coupled with a rotor, the two rotors rotating in opposite directions, the two propeller engines being coupled with a rotary axle mechanism connecting to the wings to form an integrated body, the fuselage holding a rotary axle driving means to drive the rotary axle mechanism to rotate and drive the propeller engines at two ends of the rotary axle mechanism to rotate concurrently between a vertical direction and a horizontal direction.   
     
     
         2 . The vertical take-off and landing model aircraft of  claim 1 , wherein each propeller engine includes a rotary nacelle and the rotor at a front end of the rotary nacelle, the rotary nacelle holding a driving mechanism and a pitch control means of the rotor. 
     
     
         3 . The vertical take-off and landing model aircraft of  claim 2 , wherein the rotor includes a central hub, at least three rotor blades and a plurality of blade clips mating the number of the rotor blades, the blade clips being coupled with the central hub through radial rotary shafts evenly spaced on the circumference of the central hub to clamp the rotor blades to rotate to change pitch of the rotor; the central hub including a rotor shaft extended into the rotary nacelle, the driving mechanism including a motor and a gear set located on a distal end of the rotor shaft, the pitch control means including a pitch control steering engine, a rotary oblique plate and a plurality of pulling rods located in the middle of the rotor shaft. 
     
     
         4 . The vertical take-off and landing model aircraft of  claim 3 , wherein the rotary oblique plate includes an upper plate and a lower plate that are coupled with the rotor shaft through a spherical hinge in the center in an inclined manner, the lower plate including two turnable nodes on the circumference located on a same straight line and a tilt control node perpendicular to the straight line where the turnable nodes located, the turnable nodes being held on a rotary seat, the tilt control node being coupled with the pitch control steering engine through a lower pulling rod; the upper plate including pitch control nodes evenly spaced on the circumference thereof mating the number of the rotor blades, the blade clip including an eccentric control end on one side, each pitch control node being connected to the eccentric control end through upper pulling rods with a mating number. 
     
     
         5 . The vertical take-off and landing model aircraft of  claim 4 , wherein the upper plate includes a positioning node on the circumference corresponding to the tilt control node of the lower plate, the positioning node being coupled on the rotor shaft through an anchor seat turnable synchronously with the rotor shaft, the anchor seat confining the upper plate from tilting to left and right sides. 
     
     
         6 . The vertical take-off and landing model aircraft of  claim 1 , wherein the rotary axle mechanism includes a rotary axle transversely running through the two fixed wings and a gear set located in the middle of the rotary axle mating the rotary axle driving means, and a bracing tube coupled on two sides of the rotary axle to support rotation of the rotary axle. 
     
     
         7 . The vertical take-off and landing model aircraft of  claim 6 , wherein the gear set includes a potentiometer to measure rotation angle of the rotary axle. 
     
     
         8 . The vertical take-off and landing model aircraft of  claim 1 , wherein each fixed wing includes an aileron at a rear edge thereof to control transverse manipulation of the aircraft, the tail wing including a horizontal tail and vertical tails at two ends of the horizontal tail, the horizontal tail including an elevator, the two vertical tails respectively including a rudder at a rear edge thereof; the aileron, the elevator and the rudders being controlled by independent cruising flight control steering engines. 
     
     
         9 . The vertical take-off and landing model aircraft of  claim 8 , wherein the cruising flight control steering engines are connected to the aileron, the elevator and the rudders through a linkage bar mechanism, the linkage bar mechanism including a swing bar, an extended pulling rod and a clip sheet, the extended pulling rod including two ends coupled with one end of the clip sheet and one end of the swing bar through spherical hinges, the swing bar including another end connected to the cruising flight control steering engine, the clip sheet being connected to the aileron, the elevator or the rudder.