| 摘要 |
PURPOSE:To enable refuge to the outside of room during spraying of harmless liquid in a sprayer for spraying disinfecting liquid or the like, by so constituting the sprayer that when an actuator is depressed, the harmful liquid is sprayed after the harmless liquid is first sprayed. CONSTITUTION:A valve box 7 is put in a harmless liquid filling box 12, and the top end of a liquid lead-out pipe 11 is fitted to the bottom wall 12a of said filling box. The harmless liquid filling box is provided with a check valve 14 having an elastic valve body 13 to prevent the liquid in the box from flowing down through the pipe 11; in addition, a flow passage 15 is so formed as to prevent the harmful liquid entered the harmless liquid filling box by passing said valve from immediately entering the inside of the valve box 7. Hence, the harmful liquid such as insecticide filled in the vessel is sprayed only after the harmless liquid in the flow passage 15 is sprayed from the inlet hole 7a by passing the box inside. |
