| 摘要 |
A pinch valve, comprising a body (10) accepting a pipe body (11), a cylinder body (2) having an upper cylinder part (17) and a lower handle support part (3), a piston stored in the cylinder part, a pressing element (9) fixed to the piston to press the pipe body, a cylindrical handle (1), a hollow stem (4), and piston retainers (5, 6), the handle further comprising a female thread part and a male thread part having pitches larger than those of the female thread part, wherein the male thread part is threaded to the female thread part formed on the handle support part, the stem having the male thread part threaded to the female thread part of the handle on the outer peripheral surface thereof is stored in the cylinder body, and the piston retainers are inserted into the stem so that the bottom end face comes into contact with the top end part of the piston and energized to the piston side by a spring.
|
