| 摘要 |
PURPOSE: A sealing structure of a chemical spray stand is provided, which can remove the defect that is transformed or is broken since the thickness of the supporting tube connected to the chemical spray stand body is reinforced. CONSTITUTION: A sealing structure of a chemical spray stand is constituted as follows. Recesses(10,10a) are formed on both sides of a coupling pipe(3) to which a drug solution hose is connected. An O-ring(11) and a bushing(12) are arranged to cross each other and received in the recess. An outside female screw(7b) of a screwnut(7) fixed and coupled in the handle(6) is couples with the male screw(2d) of the supporting tube. The both sides of drug solution inducement space(2b) are supported by the O-ring and bushing.
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