Gas-blowing system of color selector

The invention belongs to the field of color selectors and particularly relates to a gas-blowing system of a color selector. The gas-blowing system of the color selector comprises a nozzle main body, wherein a pore which is a stepped hole is formed in the nozzle main body and comprises a large aperture section and a middle aperture section which are sequentially arranged, the aperture of the middle aperture section is matched with the diameter of a gas pipe, and the middle aperture section is communicated with a groove which is formed on one side face of the nozzle main body; a snap ring which is arranged on the gas pipe in a sleeving manner is placed in the large aperture section, a pressure plate is arranged on the nozzle main body to prevent the snap ring from falling, and a through hole, through which a gas supply pipe passes through is formed on the pressure plate. The gas pipe is fixed by virtue of the snap spring. During installation, the snap spring is directly placed in the large aperture section of the pore and the snap spring is limited in the large aperture section by virtue of the pressure plate, and the gas pipe inserted is locked by virtue of the snap spring. The gas-blowing system of the color selector is simple in structure and convenient to install. More importantly, the snap spring is very low in cost relative to an inflating valve.