Spraying device

A spraying device for spraying liquid, comprising:

• a hollow barrel having a spray nozzle mounting portion formed at a tip end and a flange formed at a base end;
• a gasket provided slidably movable in liquid-tight manner in said barrel;
• a rod coupled to a base end of the gasket;
• a guide groove provided on said rod;
• and
• a regulating member, provided on said barrel, having an opening allowing passage of the rod formed at the center, and having a projection projecting from an edge of the opening to the center to be slidably fit with said guide groove;
• wherein
• said guide groove includes at least a first administering groove and a second administering groove provided continuous from said first administering groove;
• said first groove is configured to include a priming portion and a first administering portion extending from said priming portion to a base end along the longitudinal direction;
• said second administering groove is configured to include a transitional portion extending in the circumferential direction with a groove wall on the base end side aligned with the base end of said first administering portion, and a second administering portion extending from the transitional portion to the base end along the longitudinal direction;
• and
• an energizing protrusion engageable with said projection is provided at a boundary between said transitional portion and said second administering portion.