Coupling structure of gasoline engine

The utility model provides it is coaxial continuous that a coupling structure of gasoline engine, first sleeve pipe and second sleeve pipe pass through the connecting pipe, and it is coaxial continuous that first transmission shaft and secondary drive axle pass through connecting device, and connecting device lies in the connecting pipe, connecting device's left end is equipped with and is used for guiding the second axle body to insert the guider of first connection intracavity, and guider is including setting up first conductor and the second conductor on connecting device left end terminalsurface, first conductor is the setting describes at the portal of first edge, and the second conductor is the portal form of setting at the second edge, first conductor and second conductor are aboutthe central point central symmetry of accent, the second is connected the chamber and is connected with the cooperation detachably that the secondary drive axle passes through internal thread and external screw thread. 种汽油机的轴