Prompt drop device for remote control model airplane and remote control model airplane

Abstract

A prompt drop device for a remote control model airplane comprises an airplane body ( 1 ) and a horizontal tail ( 3 ). A support ( 2 ) disposed on the airplane body ( 1 ) is used for supporting the front end of the horizontal tail ( 3 ). The front end ( 8 ) of the horizontal tail ( 3 ) is rotated under the binding of the support ( 2 ). A driving device is connected with the horizontal tail ( 3 ) and is used for lifting the rear end of the horizontal tail ( 3 ). A remote control model airplane comprising the prompt drop device is provided with the movable horizontal tail ( 3 ) and controls the angle of the horizontal tail ( 3 ) during landing, so that vertical descending is realized, and damage during landing is avoided.

1 . A prompt drop device for a remote control model airplane, comprising an airplane body and a horizontal tail, wherein a support and a driving device are disposed on the airplane body, the support is used for supporting the front end of the horizontal tail, the front end of the horizontal tail is rotated under the binding of the support, and the driving device is connected with the horizontal tail and is used for lifting the rear end of the horizontal tail. 
     
     
         2 . The prompt drop device for the remote control model airplane according to  claim 1 , further comprising an operating mechanism and a locking pin both of which are disposed on the airplane body, wherein the locking pinstretches out or retracts back under the control of the operating mechanism, and the locking pin is inserted to a fixing portion of the horizontal tail under the condition that the locking pin is at a stretching state to lock the horizontal tail at a basically horizontal state, and the driving device is used for lifting the rear end of the horizontal tail under the condition that the fixing pin retracts back. 
     
     
         3 . The prompt drop device for the remote control model airplane according to  claim 1 , wherein the driving device comprises a tensile elastic component which is used for connecting a fulcrum disposed on the horizontal tail with the airplane body. 
     
     
         4 . The prompt drop device for the remote control model airplane according to  claim 3 , wherein the tensile elastic component is a rubber band. 
     
     
         5 . The prompt drop device for the remote control model airplane according to  claim 3 , wherein the tensile elastic component is a spring. 
     
     
         6 . The prompt drop device for the remote control model airplane according to  claim 1 , wherein the driving device is a servo mechanism which is connected to the horizontal tail and drives the horizontal tail to rotate. 
     
     
         7 . The prompt drop device for the remote control model airplane according to  claim 1 , further comprising an elevator and a steering engine for manipulating the elevator, the elevator is connected with the horizontal tail, and the steering engine is mounted on the horizontal tail and rotates along with the horizontal tail. 
     
     
         8 . (canceled)