LID

LID

To provide a lid capable of securing an amount of air flowing into and out of a pipeline even when the pressure inside the pipeline suddenly fluctuates.SOLUTION: A lid 10 comprises: a lid frame 20 that is provided on a pipeline 1; a lid body 30 that can slide up and down with respect to the lid fram...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: NAKAJIMA SHUICHI, OKAMOTO AKIRA, HASHIZUME MINORU
Format: Patent
Sprache:eng ; jpn
Schlagworte:
CESSPOOLS
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SEWERAGE
SEWERS
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
WATER SUPPLY
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Beschreibung
Zusammenfassung:To provide a lid capable of securing an amount of air flowing into and out of a pipeline even when the pressure inside the pipeline suddenly fluctuates.SOLUTION: A lid 10 comprises: a lid frame 20 that is provided on a pipeline 1; a lid body 30 that can slide up and down with respect to the lid frame 20 and is detachably attached to the lid frame 20; and a cylindrical part 40 that is provided in the lid 30 and has an air intake passage 41 opened upward and downward of the lid 30 formed therein.SELECTED DRAWING: Figure 3 【課題】管路内の圧力が突発的に変動した場合であっても、管路の内外に流れる空気量を確保することができる。【解決手段】蓋１０は、管路１に設けられる蓋枠２０と、蓋枠２０に対して上下に摺動可能であり、かつ、蓋枠２０に着脱可能に取り付けられる蓋体３０と、蓋体３０に設けられ、かつ、蓋体３０の上方および下方に向かって開放された吸気路４１が形成された筒状部４０と、を備えている。【選択図】図３