Needle head protection device capable of being quickly disassembled and assembled and used for sewing machine

The utility model relates to a quick-dismounting needle protection device for a sewing machine, which belongs to the field of sewing machines and comprises a sleeve, the sleeve is arranged on a sewing machine body close to a needle, the lower side of the sleeve is open, and a certain gap is reserved between the lower side and the side surface of the sleeve; the number of the rotating plates is two, the two rotating plates are rotationally connected to the two ends, close to the width direction of the side of the workbench, of the sleeve correspondingly, and the rotating plates are horizontally arranged in the natural state; the pressing plate vertically slides in the sleeve, a spring is arranged in the sleeve, and the spring provides force for the pressing plate to abut against the rotating plate; the protective baffle is provided with a mounting part 31, the mounting part 31 of the protective baffle can be mounted in the sleeve and corresponds to the position between the pressing plate and the rotating plate