| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pump of a sprinkler for dispensing with labor by the replacement of seal packing by eliminating a seal packing part in a part for constituting a pump chamber while being a reciprocating type pump, and obtaining high reliability in the pump action by eliminating leakage from the seal packing part. SOLUTION: The pump chamber 7 is composed of a cylindrical body 1 composed of at least one crest of bellows, a fixed body 2 for blocking up one end cylindrical port part 1a of this cylindrical body 1, and a movable body 4 blocking up the other end cylindrical port part 1b of the cylindrical body 1, and reciprocated by a driving source in the direction for contacting with and separating from the fixed body 2. A suction valve 5 and a delivery valve 6 are arranged in the fixed body 2.</p> |
