| 摘要 |
PURPOSE: A sprayer for bidirectional operation is provided, which sprays fluid continuously while being operated back and forth, thereby inhibiting the loss of the spraying power. CONSTITUTION: The sprayer for bidirectional operation is composed of an outer pipe and an inner pipe, in which the inner pipe has a stopper which is joined with the inner pipe and a first check valve which is present within the stopper. There are a first chamber in the outer pipe, a second chamber in the inner pipe and a third chamber between the inner pipe and the outer pipe. The stopper having a penetrating hole connects the second chamber with the third chamber to communicate each other. When the inner pipe moves backward within the outer pipe, fluid is moved from the first chamber to the second chamber through the first check valve, so that the second chamber and the third chamber are filled with the fluid. When the inner pipe moves forward within the outer pipe, the fluid stored in the second and third chambers is sprayed from the inner pipe.
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