Improved medical helicopter rescue device

The invention discloses an improved medical helicopter rescue device comprising a fuselage. The fuselage is provided with a propeller device. The propeller device comprises a main shaft, an adjustingshaft and paddles. The main shaft is rotationally arranged on the fuselage and is of a hollow structure. The adjusting shaft is sleeved with the main shaft. A guiding groove is formed in the inner side wall of the main shaft in the axial direction. A guiding strip slidably matched with the guiding groove is arranged on the outer side wall of the adjusting shaft in the axial direction. Three paddleconnecting rods are evenly distributed on the outer side wall of the main shaft. Each paddle connecting rod is rotationally connected with the corresponding paddle. Three supporting rods are evenly distributed on the outer side wall of the adjusting shaft. A second adjusting rod is arranged between the outer end of each supporting rod and the corresponding paddle. According to the improved medical helicopter rescue device