JP1762933S - Valve unit for air valves - Google Patents

Valve unit for air valves

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Publication number
JP1762933S
JP1762933S JP2023019304F JP2023019304F JP1762933S JP 1762933 S JP1762933 S JP 1762933S JP 2023019304 F JP2023019304 F JP 2023019304F JP 2023019304 F JP2023019304 F JP 2023019304F JP 1762933 S JP1762933 S JP 1762933S
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JP
Japan
Prior art keywords
float
mini
water
air
liquid
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Application number
JP2023019304F
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Japanese (ja)
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Priority to JP2023019304F priority Critical patent/JP1762933S/en
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Abstract

本物品は、流体が流れる管路内部の水圧が急激に変動することによって管路に衝撃が加わるウォーターハンマー現象を防止するべく、管路に接続される空気弁に用いられる空気弁用弁体ユニットである。「各部名称を示すA-A参考断面図」、「使用方法を示す参考断面図1」及び同2に示すように、本物品は、遊動弁体、フロート及びミニフロートからなる。遊動弁体は、フロートとの間に一定の間隔を確保する離間部材を複数有し、複数の離間部材を介してフロートの上部に載置される。フロートの上部と、複数の離間部材とに囲まれた空間には、ミニフロートが当該空間の外部へ離脱不能に格納され、ミニフロートは水位の変化に応じて上下に移動可能にフロート上に載置される。フロート及びミニフロートは液体に対する浮力を備えており、「使用方法を示す参考断面図1」の状態において、空気弁下部の連通孔を介して液体が空気弁内に流れ込んで水位が上昇してくると、まずフロートの浮力により、フロートと共に遊動弁体が上方に移動して大空気孔を閉塞する。さらに水位が上昇するとミニフロートがその浮力により上方に移動して小空気孔を閉塞して「使用方法を示す参考断面図2」の状態となる。これにより、液体が蓋体とカバーの間に溢れる(排出される)ことが防止され、空気(気体)のみが排出されるので、液体が蓋体とカバーの間に残されてしまうことを防止することができる。液体が上水である場合、蓋体とカバーの間に上水が長期間残存すると汚染される可能性があるが、本物品により、汚染された上水が弁箱内に戻ることがなく、管路(水道管)に汚染された上水の混合を防止することができる。This product is a valve body unit for air valves used in air valves connected to pipelines in order to prevent the water hammer effect, where the pipeline is subjected to impact due to sudden changes in water pressure inside the pipeline through which fluid flows. It is. As shown in ``A-A reference sectional view showing names of each part'', ``Reference sectional view 1 showing how to use'' and 2, this product consists of a floating valve body, a float, and a mini-float. The floating valve body has a plurality of spacing members that ensure a certain distance between it and the float, and is placed on top of the float via the plurality of spacing members. A mini-float is stored in a space surrounded by the upper part of the float and a plurality of spacing members so that it cannot be removed from the outside of the space, and the mini-float is mounted on the float so that it can move up and down according to changes in the water level. be placed. Floats and mini-floats have buoyancy against liquid, and in the state shown in "Reference sectional view 1 showing how to use", liquid flows into the air valve through the communication hole at the bottom of the air valve and the water level rises. First, due to the buoyancy of the float, the floating valve body moves upward together with the float to close the large air hole. When the water level rises further, the mini-float moves upward due to its buoyancy and closes the small air hole, resulting in the state shown in ``Reference sectional view 2 showing how to use''. This prevents liquid from overflowing (draining) between the lid and cover, and only air (gas) is exhausted, preventing liquid from remaining between the lid and cover. can do. If the liquid is clean water, it may become contaminated if it remains between the lid and the cover for a long time, but with this product, contaminated clean water will not return to the valve box. It is possible to prevent contaminated water from mixing with pipes (water pipes).

JP2023019304F 2023-09-21 2023-09-21 Valve unit for air valves Active JP1762933S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023019304F JP1762933S (en) 2023-09-21 2023-09-21 Valve unit for air valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2023019304F JP1762933S (en) 2023-09-21 2023-09-21 Valve unit for air valves

Publications (1)

Publication Number Publication Date
JP1762933S true JP1762933S (en) 2024-02-05

Family

ID=89771221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023019304F Active JP1762933S (en) 2023-09-21 2023-09-21 Valve unit for air valves

Country Status (1)

Country Link
JP (1) JP1762933S (en)

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