Patent ID: 7080761

Claim:
A spray head structure capable of preventing backflow of perfume liquid, comprising: a spray head, a locking base, a kit, a bottle, and a compressible ball, wherein the locking base is coupled to the bottle and the locking base has a trench formed thereon for holding the kit, wherein the locking base is covered with an outer cover and the kit is fixedly inserted into the locking base such that the kit is coupled with the spray head, wherein the spray head has a horizontal tunnel and a vertical tunnel, which are connected to one another, wherein the horizontal tunnel is designed for holding a gas-supplying tube, a gas-guiding device, and a spray nozzle, wherein the spray nozzle is located on one side of the horizontal tunnel, and the gas-supplying tube has a through inside and an expansion hole on one side, wherein a guide surface is formed on an outer edge of the expansion hole, and a rolling ball is held in the expansion hole and movably located inside the gas-supplying tube, wherein the gas-guiding device is inserted into the expansion hole and coupled with the gas-supplying tube, and wherein a cross-shaped trench is formed on one end of the gas-guiding device, and liquid-guiding grooves are formed on the other end of the gas-guiding device.