A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a check valve configured to always close a flow path, which can easily discharge dust to a downstream side even when slender and soft dust such as hair gets caught on an arm part.SOLUTION: A check valve is composed of a flow path for fluid, a valve seat part provided on the flow path for fluid, and a valve body 5 that prevents fluid from passing from the downstream side by contacting the valve seat part. The valve body 5 extends in the upstream direction of the flow path. The check valve comprises a valve shaft part that holds the valve body 5. In the flow path, a holding part 3d for holding and fixing the valve shaft part is provided, and only one arm part 4 for holding from the inside surface of the flow path to the holding part 3d is formed.SELECTED DRAWING: Figure 1
【課題】常時流路を閉塞する構成の逆流防止弁において、毛髪など細長く柔らかい塵芥がアーム部上に引っかかっても、容易に下流側に排出することができる逆流防止弁を提供する。【解決手段】逆流防止弁を、流体の流路と、該流体の流路上に設けた弁座部と、該弁座部に当接することで下流側からの流体の通過を防止する弁本体５と、からなり、弁本体５は、流路の上流方向に延出される、弁本体５を保持する弁軸部を備え、流路内には弁軸部を保持固定する保持部３ｄを設けると共に、流路の内側面から保持部３ｄまでを保持するアーム部４を、一つだけで構成する。【選択図】図１
To provide a check valve configured to always close a flow path, which can easily discharge dust to a downstream side even when slender and soft dust such as hair gets caught on an arm part.SOLUTION: A check valve is composed of a flow path for fluid, a valve seat part provided on the flow path for fluid, and a valve body 5 that prevents fluid from passing from the downstream side by contacting the valve seat part. The valve body 5 extends in the upstream direction of the flow path. The check valve comprises a valve shaft part that holds the valve body 5. In the flow path, a holding part 3d for holding and fixing the valve shaft part is provided, and only one arm part 4 for holding from the inside surface of the flow path to the holding part 3d is formed.SELECTED DRAWING: Figure 1
【課題】常時流路を閉塞する構成の逆流防止弁において、毛髪など細長く柔らかい塵芥がアーム部上に引っかかっても、容易に下流側に排出することができる逆流防止弁を提供する。【解決手段】逆流防止弁を、流体の流路と、該流体の流路上に設けた弁座部と、該弁座部に当接することで下流側からの流体の通過を防止する弁本体５と、からなり、弁本体５は、流路の上流方向に延出される、弁本体５を保持する弁軸部を備え、流路内には弁軸部を保持固定する保持部３ｄを設けると共に、流路の内側面から保持部３ｄまでを保持するアーム部４を、一つだけで構成する。【選択図】図１
CHECK VALVE
逆流防止弁
SASAGAWA TOMOHISA (author)
2021-09-13
Patent
Electronic Resource
Japanese