Model helicopter

Abstract

An improved model helicopter includes a main body and a tail pipe connecting base, and the main body has a containing space for containing a rotor transmission mechanism of a model helicopter and a connecting track transversally disposed on the main body, and the tail pipe connecting base is connected to a tail pipe, and a transmission module is pivotally connected to an end of the pipe connecting base without the tail pipe, and the tail pipe connecting base is detachably installed into the connecting track of the main body.

1 . An improved model helicopter, comprising: 
 a main body, having a containing space for installing a rotor transmission mechanism of a model helicopter, and a connecting track transversally disposed at said main body;    a tail pipe connecting base, having a positioning groove for connecting a tail pipe of said model helicopter, a pivotal base disposed at an end other than said positioning groove, and at least one pressing surface for pressing against said connecting track of said main body and detachably connecting said connecting track of said main body to produce a relative pivotal rotation between said tail pipe connecting base and said main body; and    a transmission module, pivotally coupled to said pivotal base of said tail pipe connecting base, and having a first transmission portion disposed at an end of said transmission module and linked to said rotor transmission mechanism, and another end of said transmission module having a second transmission portion.    
   
   
       2 . The improved model helicopter of  claim 1 , wherein said main body is formed by engaging two side panels.  
   
   
       3 . The improved model helicopter of  claim 1 , wherein said main body is integrally formed.  
   
   
       4 . The improved model helicopter of  claim 1 , wherein said connecting track of said main body corresponds with an external periphery of said tail pipe connecting base for positioning said tail pipe connecting base to prevent said tail pipe connecting base and said main body from being rotated and swung pivotally.  
   
   
       5 . The improved model helicopter of  claim 1 , wherein said pivotal base includes a first connecting portion integrally coupled with said positioning groove and a second connecting portion corresponding to said first connecting portion, and said first connecting portion and said second connecting portion are detachably connected, and said first connecting portion and said second connecting portion respectively include two pivotal grooves facing with each other, such that said pivotal grooves of said first connecting portion and said second connecting portion are engaged with each other to pivotally connect said transmission module to an area formed by said two pivotal grooves.  
   
   
       6 . The improved model helicopter of  claim 1 , wherein said transmission module is a tail rotor transmission module.  
   
   
       7 . The improved model helicopter of  claim 5 , wherein said tail pipe connecting base includes a slot extended longitudinally along said positioning groove.