Rotary butt joint structure

The utility model discloses a rotary butt joint structure. The clutch comprises an output shaft, a clamping column, a butt joint shaft, a butt joint column and a spring. The clamping column is fixedlyinserted into the end, used for being in butt joint with the butt joint shaft, of the output shaft. The clamping column extends along the radial direction of the output shaft; a middle hole is formedin the middle of the butt joint column, one end of the butt joint column is slidably arranged at the end of the butt joint shaft in a sleeving mode through the middle hole, the butt joint column candrive the butt joint shaft to rotate together, a cross groove is formed in the other end of the butt joint column, a step is arranged on the butt joint shaft, and the spring is movably arranged on thebutt joint shaft in a sleeving mode and compressed between the step and the butt joint column. During use, the end of the output shaft is correspondingly inserted into a middle hole in the end, provided with the cross groove, o