JPS6132551B2 - - Google Patents
Info
- Publication number
- JPS6132551B2 JPS6132551B2 JP52065315A JP6531577A JPS6132551B2 JP S6132551 B2 JPS6132551 B2 JP S6132551B2 JP 52065315 A JP52065315 A JP 52065315A JP 6531577 A JP6531577 A JP 6531577A JP S6132551 B2 JPS6132551 B2 JP S6132551B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- float valve
- float
- intake
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007788 liquid Substances 0.000 claims description 14
- 230000000694 effects Effects 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Description
【発明の詳細な説明】
本発明は給水もしくは温水等の液体を移送させ
る配管に取付けて使用され、該配管内へ混入した
空気を排出するための空気弁に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air valve that is attached to a pipe for transferring liquid such as water supply or hot water, and is used to discharge air mixed into the pipe.
一般にこの種の配管内の空気を排出するための
空気弁としては、フロートチヤンバー内に球状又
は円筒状のフロート弁を収納した構成のものが公
知である。この公知の空気弁はフロート弁が球状
または円筒状であるので、該フロート弁の当接又
は離脱によつて開閉される吸排気口がフロート弁
の中心、即ちフロート弁の重心上に設けられてい
る。 Generally, as this type of air valve for discharging air in piping, one having a structure in which a spherical or cylindrical float valve is housed in a float chamber is known. Since the float valve of this known air valve has a spherical or cylindrical shape, an intake/exhaust port that is opened and closed by contact or separation of the float valve is provided at the center of the float valve, that is, on the center of gravity of the float valve. There is.
しかしながら、従来の上記構造では管内圧力と
吸排気口よりの出口圧力（大気圧＝ゲージ圧力は
零）の差があり、その圧力差のためにフロート弁
は吸排気口方向に向つて出口の面積（cm2）×管内
圧力（Kg／cm2）＝ｐKgの力が発生してしまうこと
から、いわゆるフロートチヤンバー内が空気のみ
になつた場合はフロート弁自体の重さがPKgより
大きい重量でないとフロート弁で閉塞している吸
排気口を開放にし、排気することができなくな
る。しかも前記においてフロート弁は液体に対し
て充分な浮力がなければならないので、前記重量
と浮力とを合せ考慮した場合に、その大きさが必
然的に大きくなつてしまう欠点があつた。 However, in the above conventional structure, there is a difference between the pressure inside the pipe and the outlet pressure from the intake and exhaust ports (atmospheric pressure = gauge pressure is zero), and due to this pressure difference, the float valve has a smaller outlet area toward the intake and exhaust ports. (cm 2 ) x internal pressure (Kg/cm 2 ) = pKg force is generated, so if the so-called float chamber is filled only with air, the weight of the float valve itself is not greater than PKg. This will open the intake and exhaust ports that are blocked by the float valve, making it impossible to exhaust the air. Furthermore, since the float valve must have sufficient buoyancy with respect to the liquid, it has the disadvantage that its size inevitably becomes large when the weight and buoyancy are taken into consideration.
依つて、前記したようにフロートが大きくなる
ことは、空気弁全体が大型化することになり、そ
の取り付けスペースおよび取り付け位置において
も制約を受け、そのために周辺を含む全体の構成
が複雑となり、空気弁自体のコストを割り高とし
てしまうという欠点もあつた。 Therefore, as mentioned above, when the float becomes larger, the entire air valve becomes larger, and the installation space and mounting position are also restricted, which makes the overall configuration including the surroundings complex, and the air valve becomes larger. Another drawback was that the cost of the valve itself was relatively high.
本発明の目的は、前記従来の欠点を除去するた
になされたものであつて、その具体的構成は、弁
箱内に収納するフロート弁の少なくとも上面周辺
寄りに平坦部を形成し、該フロート弁の平坦部に
対向する任意の位置の弁箱内上部に吸排気口を有
する弁座を突出形成すると共に、該弁座の突出に
対応して前記フロート弁が浮上した時に水平状態
に支持できる複数のストツパーを突出形成し、前
記フロート弁は弁箱内の液面降下時に前記弁座を
支点として下方に傾斜し、前記吸排気口を開放で
きるように断面逆台形状に形成されたことを特徴
とする空気弁を提供するものであり、前記フロー
ト弁を断面逆台形状に形成したことにより、弁箱
内に充分空気が溜つて液面がさがつた時に、フロ
ート弁の側面が弁箱の内側面に接触することなく
弁座を中心にして傾斜し吸排気口を開放するので
ある。 An object of the present invention is to eliminate the above-mentioned drawbacks of the conventional art, and its specific configuration is to form a flat portion at least near the upper surface of a float valve housed in a valve box, and to A valve seat having an intake/exhaust port is formed protrudingly on the upper part of the valve box at an arbitrary position facing the flat part of the valve, and the float valve can be supported in a horizontal state when it floats up in response to the protrusion of the valve seat. A plurality of stoppers are formed protrudingly, and the float valve is formed to have an inverted trapezoidal cross section so that it can tilt downward using the valve seat as a fulcrum and open the intake and exhaust ports when the liquid level in the valve box falls. By forming the float valve with an inverted trapezoidal cross section, when sufficient air has accumulated in the valve box and the liquid level has dropped, the side surface of the float valve will close to the valve box. It tilts around the valve seat to open the intake and exhaust ports without touching the inner surface of the valve.
次に本発明を図示の一実施例に基き更に詳しく
説明する。１は筒状を呈する弁箱であり、該弁箱
の下部に流入口２を有すると共に上部に蓋３を冠
着し、内部を空気室としてある。この内部空気室
にはフロート弁４に収納し、該フロート弁は上面
周辺寄りに平坦部７ａを設けると共に周側面をテ
ーパー面にし、断面逆台形状に形成してある。こ
のフロート弁は空気室内において、下部流入口２
から流入する液体で自由に浮上できるものであ
る。 Next, the present invention will be explained in more detail based on an illustrated embodiment. Reference numeral 1 denotes a cylindrical valve box, which has an inlet 2 at its lower part, a lid 3 at its upper part, and an air chamber inside. A float valve 4 is accommodated in this internal air chamber, and the float valve has a flat portion 7a near its upper surface, a tapered peripheral surface, and an inverted trapezoidal cross section. This float valve is installed in the air chamber at the lower inlet port 2.
It can float freely with the liquid flowing in from the surface.
前記弁箱１の蓋３には、前記フロート弁４の平
坦部４ａと対応する任意の位置に吸排気口５を有
する弾性体の弁座６を突出配設すると共に、該弁
座６の突出に対応して複数のストツパー７を設け
る。このストツパー７は前記フロート弁４が浮上
して前記弁座６に当接する位置で略水平状態に保
たれるように、例えば三点支持の状態になるよう
に配設してある（第２図参照）。 A valve seat 6 made of an elastic body and having an intake/exhaust port 5 at an arbitrary position corresponding to the flat part 4a of the float valve 4 is disposed protrudingly on the lid 3 of the valve box 1. A plurality of stoppers 7 are provided correspondingly. This stopper 7 is arranged so that the float valve 4 floats and is maintained in a substantially horizontal state at the position where it abuts the valve seat 6, for example, so that it is supported at three points (see Fig. 2). reference).
上記構成において、ストツパー７は適宜の間隔
をもつて、二箇所に設けてあるが、これは弁座６
との間で三点支持の状態でフロート弁４を安定し
て受け止めるためであり、安定した状態で支持で
きれば２個のストツパー７を該位置で一連の突条
として形成してもよい。 In the above configuration, the stopper 7 is provided at two locations with an appropriate interval, but this is the stopper 7 located at the valve seat 6.
This is to stably receive the float valve 4 in a three-point supported state between the two stoppers 7, and if it can be stably supported, the two stoppers 7 may be formed as a series of protrusions at these positions.
又、弁座６の吸排気口５は浮上したフロート弁
４の平坦部４ａが当接して開成されるようになつ
ており、弁座６は調節ネジ８の先端に取り付けて
あつて前記平坦部４ａとの当接高さが調節できる
ようにしてある。尚、８′は吸排気口５と流出口
９とを連通する透孔である。 Further, the intake/exhaust port 5 of the valve seat 6 is opened when the flat part 4a of the floating float valve 4 comes into contact with the valve seat 6, and the valve seat 6 is attached to the tip of the adjustment screw 8 so that the flat part 4a comes into contact with the valve seat 6. The height of contact with 4a can be adjusted. Note that 8' is a through hole that communicates the intake/exhaust port 5 and the outlet 9.
中央に吸排気口５を穿つてなる弁座６は、その
突出端、即ち、前記フロート弁４が当接する端部
を弧状に形成してあり、それによつてフロート弁
４が浮上して弁座６およびストツパー７で受け止
められた時に吸排気口５が平坦部４ａで閉成され
るが、弁箱１内の溜留空気の増大によつて弁箱１
内の液面が降下すると、その下降に追従してフロ
ート弁４も降下しようとするが、吸排気口５にお
いては吸着力が生じているので、水平には降下で
きず、弁座６を支点として、第３図に示したよう
に、フロート弁４が傾斜し、吸排気口５と平坦部
４ａとの間に隙間ができ、この隙間から内部の空
気が排出されると共に吸着力が解除されてフロー
ト弁４が液面に落下するのである。つまり、フロ
ート弁４が弁座６に当接していて弁箱内の空気が
増大すると、その空気は吸排気口５から流出口９
方向に流れ出ようとする作用があり、それによつ
て吸排気口５側に吸着作用が生ずることになる
が、フロート弁４と弁座６との当接位置は、フロ
ート弁４の重心位置から大きくずれており、液面
降下に追従して弁座６と当接していない側が降下
することになり、フロート弁４が傾斜し挺子作用
によつて吸排気口５が開放されるのである。この
場合に、フロート弁４は断面逆台形状に形成され
ているため、傾斜時にフロート弁４の側面と弁箱
１の内側面とが当接せず、その傾斜作用が容易に
行えるのである。 The valve seat 6, which has an air intake and exhaust port 5 in the center, has an arcuate projecting end, that is, the end that the float valve 4 comes into contact with, so that the float valve 4 floats up and closes on the valve seat. 6 and the stopper 7, the intake/exhaust port 5 is closed by the flat part 4a, but due to the increase in the accumulated air in the valve box 1, the valve box 1
When the liquid level inside falls, the float valve 4 also tries to fall to follow the drop, but because of the suction force generated at the intake and exhaust ports 5, it cannot descend horizontally and uses the valve seat 6 as a fulcrum. As shown in FIG. 3, the float valve 4 is tilted and a gap is created between the intake/exhaust port 5 and the flat part 4a, and the internal air is discharged from this gap and the adsorption force is released. The float valve 4 then falls to the liquid surface. In other words, when the float valve 4 is in contact with the valve seat 6 and the air inside the valve box increases, the air flows from the intake/exhaust port 5 to the outlet 9.
There is an action of flowing out in the direction, which causes an adsorption action on the intake/exhaust port 5 side, but the contact position between the float valve 4 and the valve seat 6 is far away from the center of gravity of the float valve 4. As a result, the side not in contact with the valve seat 6 falls following the drop in the liquid level, causing the float valve 4 to tilt and the intake/exhaust port 5 to be opened by the action of the lever. In this case, since the float valve 4 is formed to have an inverted trapezoidal cross-section, the side surface of the float valve 4 does not come into contact with the inner surface of the valve body 1 during tilting, and the tilting action can be easily performed.
前記した排気に関して、第４図の拡大図で示し
たように、弁座６に近接して弁座先端よりも若干
低い補助ストツパー６′を設けておくことによ
り、フロート弁４が傾斜したときに弁座６とのギ
ヤツプが大きく得られることになり、それによつ
て吸排気口５の開放効果がより高められる。な
お、図中１′はフロート弁４が落下した時に、流
入口２が閉塞されるのを防ぐ突起部である。また
フロート弁４の平坦部４ａは図示では平面状とし
た上面と共通であるが、この平坦部４ａはフロー
ト弁４の上面中央域と異なるように区分して設け
てもよく、またこの平坦部４ａは吸排気口５が閉
成できる面であれば図示のような水平面の他に、
若干の傾斜もしくは多少のアールをもつ面として
もよい。いずれにしても、本発明のフロート弁４
はその形状が単純であるから製造が極めて容易に
行えるのである。 Regarding the above-mentioned exhaust, as shown in the enlarged view of FIG. 4, by providing an auxiliary stopper 6' near the valve seat 6 and slightly lower than the tip of the valve seat, when the float valve 4 is tilted, A large gap with the valve seat 6 can be obtained, thereby further enhancing the opening effect of the intake and exhaust ports 5. Note that 1' in the figure is a protrusion that prevents the inlet 2 from being blocked when the float valve 4 falls. In addition, although the flat portion 4a of the float valve 4 is shown in common with the planar top surface, the flat portion 4a may be provided separately from the center area of the top surface of the float valve 4. 4a is a horizontal surface as shown in the figure, as long as it is a surface on which the intake/exhaust port 5 can be closed;
It may be a surface with a slight inclination or a slight radius. In any case, the float valve 4 of the present invention
Because of its simple shape, it is extremely easy to manufacture.
更に、前記弁座６はフロート弁４に対して一個
だけ設けた場合について説明したが、フロート弁
４は浮上した時に三個所で支持される構成として
あり、必要に応じては弁座６をこのうちの二個所
に設けても、フロート弁４が傾斜して吸排気口５
を開放し、落下するという前記と略同じ効果が得
られ、この場合では排気時間の短縮が図れる。 Furthermore, although the case where only one valve seat 6 is provided for the float valve 4 has been described, the float valve 4 is configured to be supported at three points when it floats, and the valve seat 6 can be attached to this position as necessary. Even if it is installed in two locations, the float valve 4 will be tilted and the intake/exhaust port 5 will be closed.
substantially the same effect as described above, in which the gas is released and falls, and in this case, the evacuation time can be shortened.
以上説明したように本発明に係る空気弁は、弁
箱内に収納されるフロート弁を断面逆台形状に形
成すると共に、吸排気口を有する弁座と当接する
上面周辺寄りを平坦部に形成し、更に弁座と略同
じ高さの複数のストツパーを設けたことにより、
弁箱内の液面が上昇した時に、フロート弁が略水
平状態で弁座と当接し、フロート弁の平坦部が吸
排気口を正しく塞いで液の流出を防止すると共
に、弁箱内の空気が増えて液面が降下した時に、
フロート弁においては吸排気口と当接している一
方の端部寄りの平坦部に吸着作用が生じている
が、他方の他部側は液面の下降に追従して降下
し、フロートが弁座との当接部分を起点として、
全体的に傾斜し、吸排気口が簡単に開放できる構
成であるため、フロート弁の重量をそれ程大きく
する必要がなく、従つてフロート弁を小形化でき
るために空気弁全体も小型コンパクト化できると
いう優れた効果を奏する。 As explained above, in the air valve according to the present invention, the float valve housed in the valve box is formed to have an inverted trapezoidal cross section, and the periphery of the upper surface that contacts the valve seat having the intake and exhaust ports is formed as a flat part. In addition, by providing multiple stoppers at approximately the same height as the valve seat,
When the liquid level inside the valve box rises, the float valve comes into contact with the valve seat in a nearly horizontal state, and the flat part of the float valve properly blocks the intake and exhaust ports to prevent liquid from flowing out, and also prevents the air inside the valve box from flowing out. increases and the liquid level falls,
In a float valve, an adsorption effect occurs on the flat part near one end that is in contact with the intake/exhaust port, but the other part follows the drop in the liquid level and descends, causing the float to close to the valve seat. Starting from the contact part with
Because the structure is tilted overall and the intake and exhaust ports can be easily opened, there is no need to increase the weight of the float valve, and because the float valve can be made smaller, the entire air valve can also be made smaller and more compact. It has excellent effects.
又、空気弁の構成が簡単であることで故障も少
なく、同時に小型に形成できることにより、空気
弁取付設備も簡略化できると共に、全体として廉
価に提供できるという優れた効果も奏する。 Furthermore, since the configuration of the air valve is simple, there are fewer failures, and at the same time, the air valve can be formed in a small size, so the air valve mounting equipment can be simplified, and the overall effect is that it can be provided at a low price.
更に、フロート弁を断面逆台形に形成したこと
により、液面下降時にフロート弁が傾斜しても、
フロート弁の側面と弁箱の内側面とが当接せず、
無抵抗な状態で傾斜するので吸排気口の開放が容
易になるという優れた効果も奏する。 Furthermore, by forming the float valve with an inverted trapezoidal cross section, even if the float valve tilts when the liquid level falls,
The side surface of the float valve and the inner surface of the valve box do not come into contact with each other.
Since it tilts with no resistance, it also has the excellent effect of making it easier to open the intake and exhaust ports.
第１図は本発明に係る空気弁の一実施例を示す
縦断面図、第２図は浮上したフロート弁の保持状
態を理解するための略示的平面図、第３図はフロ
ート弁の下降状態を示す作動説明図、第４，５図
は排気の状態を示す略示的説明図である。
１…弁箱、１′…突起部、２…流入口、３…
蓋、４…フロート弁、４ａ…平坦部、５…吸排気
口、６…弁座、６′…補助ストツパー、７…スト
ツパー、８…調節ネジ、８′…透孔、９…流出
口。
Fig. 1 is a longitudinal sectional view showing an embodiment of the air valve according to the present invention, Fig. 2 is a schematic plan view for understanding the holding state of the floating float valve, and Fig. 3 is the lowering of the float valve. FIGS. 4 and 5 are schematic explanatory diagrams showing the state of exhaust gas. 1...Valve box, 1'...Protrusion, 2...Inflow port, 3...
Lid, 4... Float valve, 4a... Flat part, 5... Intake/exhaust port, 6... Valve seat, 6'... Auxiliary stopper, 7... Stopper, 8... Adjustment screw, 8'... Through hole, 9... Outflow port.
Claims (1)
面周辺寄りに平坦部を形成し、該フロート弁の平
坦部に対向する任意の位置の弁箱内上部に吸排気
口を有する弁座を突出形成すると共に、該弁座の
突出に対応して前記フロート弁が浮上した時に水
平状態に支持できる複数のストツパーを突出形成
し、前記フロート弁は弁箱内の液面降下時に前記
弁座を支点として下方に傾斜し、前記吸排気口を
開放できるように断面逆台形状に形成されたこと
を特徴とする空気弁。1. A flat part is formed at least near the upper surface of the float valve to be housed in the valve box, and a valve seat having an intake and exhaust port is formed protruding from the upper part of the valve box at an arbitrary position opposite to the flat part of the float valve. At the same time, a plurality of stoppers are formed protrudingly corresponding to the protrusion of the valve seat so that the float valve can be supported in a horizontal state when it floats, and when the liquid level in the valve box is lowered, the float valve is pivoted downward using the valve seat as a fulcrum. 1. An air valve having an inverted trapezoidal cross-section so that the air intake and exhaust ports can be opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6531577A JPS541433A (en) | 1977-06-03 | 1977-06-03 | Air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6531577A JPS541433A (en) | 1977-06-03 | 1977-06-03 | Air valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS541433A JPS541433A (en) | 1979-01-08 |
| JPS6132551B2 true JPS6132551B2 (en) | 1986-07-28 |
Family
ID=13283342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6531577A Granted JPS541433A (en) | 1977-06-03 | 1977-06-03 | Air valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS541433A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6321818Y2 (en) * | 1980-09-10 | 1988-06-15 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213635U (en) * | 1975-07-18 | 1977-01-31 |
-
1977
- 1977-06-03 JP JP6531577A patent/JPS541433A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213635U (en) * | 1975-07-18 | 1977-01-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS541433A (en) | 1979-01-08 |
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