| 摘要 |
A self-locking butterfly valve adapted for placement in a tubular housing including a longitudinally slotted shaft with opposing grooves and a disc slideably received by the shaft. The disc is provided at one end with a slot engaging the grooves of the shaft and at the other end with a tab which, with the shaft, extends through an aperture in the housing for locking the disc to the shaft without use of external fasteners. A pin through the shaft may be used to prevent withdrawal of the shaft from the tubular housing.
|
