To provide a check valve which is excellent in attachment workability, and suppressed in the occurrence of a turning failure even after the lapse of years, and an attachment mechanism of the check valve.SOLUTION: A valve body 30 (a pair of valve plates 31A, 31B, turning parts 32 of the valve plates, and an energization part 34 straddling both the valve parts, and energizing the valve plates 31A, 31B to a direction in which the valve plates are opened) is integrally formed at a check valve 10. The energization part 34 is attached into a hole part 22 located above from a notch 23 which is formed at a lower part of a side face of a housing 20 in a state of being located above the valve plates 31A, 31B, and the valve plates 31A, 31B are assembled while abutting on a protrusion 24 which is formed in the housing 20. The check valve 10 is inserted into a lower pipe 2 of a fuel tank 1, the lower pipe 2 is covered with a hose 5, a hose clamp 6 is arranged in a position of the hole part 22 of the housing 20, and the hose 5, the lower pipe 2 and the check valve 10 are fastened to one another.SELECTED DRAWING: Figure 5
【課題】組み付け作業性に優れ、且つ経年後も脱落や回動不良の発生を抑制した逆止弁及び逆止弁の取付機構を提供する。【解決手段】逆止弁10は、弁体30(一対の弁板31A、31Bと、左記弁板の回動部32と、両弁板に跨り、弁板31A、31Bを開く方向に付勢する付勢部34)が一体成形され、付勢部34が弁板31A、31Bの上方に位置する状態でハウジング20の側面下部に形成された切れ込み部23から上方に位置する孔部22に装着され、弁板31A、31Bがハウジング20内部に配設された突部24に当接して組み立てられる。逆止弁10を燃料タンク1のロアパイプ2に挿入し、ロアパイプ2にホース5を被せ、ハウジング20の孔部22の位置にホースクランプ6を配置して、ホース5、ロアパイプ2と逆止弁10を緊締する。【選択図】図5
CHECK VALVE AND ITS ATTACHMENT MECHANISM
逆止弁およびその取付機構
2020-01-09
Patent
Electronic Resource
Japanese