| 摘要 |
A spray gun includes a gun body, a ferrule and a head. The ferrule is screwed to the gun body. A plurality of through holes are disposed on the ferrule with each inserted with a bead. A ring is provided on the outer circumference of the ferrule. A flange is provided on the inner circumference of the ring in relation to the through holes. The flange holds against and keeps the beads protruding from their respective through holds. The beads are locked in respective recesses on a locking end at the rear of the head to allow fast removal of the head from the gun body and revolving of the head.
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