JPH0749154Y2 - Automatic air vent valve - Google Patents
Automatic air vent valveInfo
- Publication number
- JPH0749154Y2 JPH0749154Y2 JP1990012797U JP1279790U JPH0749154Y2 JP H0749154 Y2 JPH0749154 Y2 JP H0749154Y2 JP 1990012797 U JP1990012797 U JP 1990012797U JP 1279790 U JP1279790 U JP 1279790U JP H0749154 Y2 JPH0749154 Y2 JP H0749154Y2
- Authority
- JP
- Japan
- Prior art keywords
- float
- cylindrical
- lid
- air
- automatic 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 - Lifetime
Links
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は配管内の空気を排出するのに使用される自動空
気抜き弁の改善に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an improvement of an automatic air vent valve used for discharging air in a pipe.
高低差を利用して配管で水を下方に送る場合、配管に空
気が溜り易い部分を作らないことが肝要である。空気が
溜ると水の流れが妨げられるからである。配管の都合上
このような空気が溜り易い部分がある場合はその部分に
空気抜き弁を設けるのが通常で、空気が溜ると弁が開い
て空気を排出し、空気が無くなると弁を閉じる自動空気
抜き弁が一般に使用されている。When the water is sent downward through the pipe by utilizing the height difference, it is important not to make a portion where air is likely to accumulate in the pipe. This is because the flow of water is hindered when air is collected. If there is such a portion where air can easily accumulate due to piping, an air vent valve is usually installed in that portion.When air accumulates, the valve opens and discharges air. When air is exhausted, the valve closes automatically. Valves are commonly used.
このような自動空気抜き弁には種々の機構が考案されて
おり、第２図に示す自動空気抜き弁はその１例である。
第２図においてケーシング１内にガイド壁２が設けら
れ、該ガイド壁２内には比重１以下のプラスチック製蓋
付円筒状のフロート３とその下方にプラスチック製球形
フロート４が収納され、これらを上蓋５で閉じる構造に
なっている。ガイド壁２は円筒状フロート３と球形フロ
ートを垂直方向に昇降せしめるためのもので、水と空気
の侵入が可能なように適当な穴が設けられている。円筒
状フロート３の蓋部中央には中心部に小孔を有する弾性
体６を有し、又、円筒部には水と空気の導入孔が設けら
れ、かつ円筒状フロート３の比重は球形フロート４より
若干小さくされている。Various mechanisms have been devised for such an automatic air vent valve, and the automatic air vent valve shown in FIG. 2 is one example.
In FIG. 2, a guide wall 2 is provided in a casing 1, and a cylindrical float 3 with a plastic lid having a specific gravity of 1 or less and a plastic spherical float 4 below it are housed in the guide wall 2. It has a structure that is closed by the upper lid 5. The guide wall 2 is for vertically moving the cylindrical float 3 and the spherical float up and down, and is provided with appropriate holes so that water and air can enter. An elastic body 6 having a small hole in the center is provided at the center of the lid of the cylindrical float 3, and water and air introduction holes are provided in the cylindrical part, and the specific gravity of the cylindrical float 3 is a spherical float. It is slightly smaller than 4.
このような自動空気抜き弁によると、配管内に空気が存
在する状態では円筒状フロート３と球形フロート４は共
に降下した状態であり、空気はケーシング１内の空間を
上昇して上蓋５の中央部に設けられた開口から排出され
る。According to such an automatic air bleeding valve, both the cylindrical float 3 and the spherical float 4 are in a lowered state when air is present in the pipe, and the air rises in the space inside the casing 1 and the central portion of the upper lid 5. It is discharged from the opening provided in the.
空気が減少するにつれて水がケーシング１内に侵入し、
先ず球形フロート４が押し上げられ、次いで該球形フロ
ート４が円筒状フロート３を押し上げ、円筒状フロート
３を上蓋５に押し付けるに至り、弁は閉の状態となる。
水がケーシング１内に充満すれば球形フロート４が浮力
により円筒状フロート３の弾性体６を強く押圧して水の
排出を止め、一方円筒状フロート３と上蓋５との間の水
の排出は上蓋下部に設けられたＯリング７によって阻止
される。このような状態の時に少量の空気がこの弁内に
入ると水位が一時的に下り、先ず球形フロート４が降下
して弾性体６から離れる結果、この弾性体６の中心部の
小孔から空気が排出される。大量の空気が弁内に入れば
弁内水位が球形フロート４の下方まで下がり、球形フロ
ート４、円筒状フロート３共に降下し、弁は全面的に開
となって空気を速やかに排出する。Water enters the casing 1 as the air decreases,
First, the spherical float 4 is pushed up, and then the spherical float 4 pushes up the cylindrical float 3 to press the cylindrical float 3 against the upper lid 5, and the valve is closed.
When the casing 1 is filled with water, the spherical float 4 strongly presses the elastic body 6 of the cylindrical float 3 by buoyancy to stop the water discharge, while the water between the cylindrical float 3 and the upper lid 5 is discharged. It is blocked by the O-ring 7 provided on the lower part of the upper lid. When a small amount of air enters the inside of this valve in such a state, the water level temporarily drops, and first the spherical float 4 descends and separates from the elastic body 6, and as a result, the air flows from the small hole in the center of the elastic body 6. Is discharged. When a large amount of air enters the valve, the water level in the valve drops below the spherical float 4, both the spherical float 4 and the cylindrical float 3 drop, and the valve is fully opened to expel air quickly.
ところが上記のような自動空気抜き弁の欠点は、弾性体
６の小孔にゴミ等の異物が詰り易いことである。該小孔
が閉塞されると弁内空気が少量になった時の排出が円滑
に行われず、弁の開閉が完全なON,OFFになる結果、フロ
ート３と上蓋５の衝突が頻繁に起るようになる。このよ
うな状況は弁の保守上好ましくなく、弁の分解掃除を高
い頻度で行うことを余儀なくされていた。However, a drawback of the automatic air vent valve as described above is that foreign matters such as dust are easily clogged in the small holes of the elastic body 6. If the small hole is closed, the air will not be discharged smoothly when the amount of air in the valve becomes small, and the opening and closing of the valve will be completely turned on and off, resulting in frequent collisions between the float 3 and the upper lid 5. Like Such a situation is not preferable for maintenance of the valve, and the valve must be disassembled and cleaned frequently.
本考案は上記事情に鑑みて為されたものであり、メンテ
ナンスフリーの自動空気抜き弁を提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is to provide a maintenance-free automatic air vent valve.
上記目的を達成するため本考案の自動空気抜き弁は、円
筒状フロートの円筒部内側にスペーサーを介して球形フ
ロートと接触する必要最小限の高さの円筒状弾性体が取
付けられ、蓋付円筒状フロートの該蓋部の孔径を10mm以
上で該円筒状弾性体の内径以下の寸法とした点に特徴が
ある。In order to achieve the above object, the automatic air bleeding valve of the present invention is provided with a cylindrical elastic body having a minimum required height for contacting a spherical float through a spacer inside a cylindrical portion of a cylindrical float, and having a cylindrical shape with a lid. The feature is that the hole diameter of the lid portion of the float is set to 10 mm or more and less than or equal to the inner diameter of the cylindrical elastic body.
第１図は本考案の自動空気抜き弁の１例を示す図であ
る。第１図においてプラスチック製の蓋付円筒状フロー
ト８の蓋部中央には直径10mm以上の孔が設けられ、該フ
ロートの円筒部内側にはスペーサー９を介して円筒状の
弾性体10が取付けられている。スペーサー９はフロート
８の円筒側壁と円筒状弾性体10との間の空気の流通を確
保すると共に、円筒状弾性体10を補強するために設けら
れる。従ってスペーサー９の位置と構造はこの機能を達
成できるものであれば何れであっても良い。FIG. 1 is a view showing an example of the automatic air vent valve of the present invention. In FIG. 1, a hole with a diameter of 10 mm or more is provided in the center of the lid of a plastic cylindrical float 8 with a lid, and a cylindrical elastic body 10 is attached to the inside of the cylinder of the float via a spacer 9. ing. The spacer 9 is provided to secure air flow between the cylindrical side wall of the float 8 and the cylindrical elastic body 10 and to reinforce the cylindrical elastic body 10. Therefore, the position and structure of the spacer 9 may be any as long as this function can be achieved.
前記フロート８の蓋部の孔径をこの円筒状弾性体10の内
径以下の寸法とするべきことは言うまでもない。It goes without saying that the hole diameter of the lid portion of the float 8 should be set to be equal to or smaller than the inner diameter of the cylindrical elastic body 10.
上記本考案の自動空気抜き弁の機能、動作は従来型と全
く同様であり、ケーシング１内に水が充満した状態では
球形フロート４はその浮力で円筒状フロート８の円筒状
弾性体10を押圧して水の流入を阻止し、一方円筒状フロ
ート８もそれ自体の浮力で上蓋５に押し付けられ、Ｏリ
ング７によって水の排出が阻止される。この状態で少量
の空気がケーシング１内に入ると一時的に水位が下り、
球形フロート４が先ず降下して円筒状弾性体10から離
れ、空気は円筒状フロート10の蓋部中央の孔から排出さ
れ、再び水位が上昇して球形フロート４も上昇し、該フ
ロート４と円筒状弾性体10が密接する。空気が更に多量
に流入すれば球形フロート４と、円筒状フロート８は共
に降下して弁は開状態となり、空気を速やかに排出す
る。The function and operation of the automatic air vent valve of the present invention are exactly the same as those of the conventional type, and when the casing 1 is filled with water, the spherical float 4 presses the cylindrical elastic body 10 of the cylindrical float 8 by its buoyancy. And the cylindrical float 8 is pressed against the upper lid 5 by its own buoyancy, and the O-ring 7 blocks the discharge of water. When a small amount of air enters the casing 1 in this state, the water level temporarily drops,
The spherical float 4 first descends and separates from the cylindrical elastic body 10, air is discharged from a hole in the center of the lid of the cylindrical float 10, the water level rises again, and the spherical float 4 also rises, and the float 4 and the cylinder Elastic body 10 is in close contact. When a larger amount of air flows in, the spherical float 4 and the cylindrical float 8 both descend, the valve is opened, and the air is quickly discharged.
本考案の空気抜き弁においては円筒状フロート８の蓋部
孔径は10mm以上とされており、この程度であれば異物に
よる閉塞は殆んど起らず、もし閉塞するにしてもその頻
度は大幅に減少する。このため分解掃除の頻度も大幅に
減少し、メンテナンス費用を大幅に節減することができ
る。なお本考案の自動空気抜き弁において閉の状態で少
量の空気が入った場合、空気排出時に円筒状フロート８
内の水も一緒に噴射されるが、上蓋５の上に適当な高さ
の空気排出管を取付けておけば飛沫同伴を最小限に留め
ることができる。In the air vent valve of the present invention, the diameter of the cover hole of the cylindrical float 8 is set to 10 mm or more, and if this is the case, there will be almost no obstruction due to foreign matter, and even if obstruction occurs, the frequency will be greatly increased. Decrease. As a result, the frequency of disassembly and cleaning can be greatly reduced, and maintenance costs can be significantly reduced. When a small amount of air enters the closed state in the automatic air vent valve of the present invention, the cylindrical float 8
The water inside is also sprayed together, but if an air discharge pipe of appropriate height is mounted on the upper lid 5, entrainment of droplets can be minimized.
上記の通り本考案によれば自動空気抜き弁の保守を殆ん
ど行うことなく長期間使用することができ、保守費用を
大幅に節減することができる。As described above, according to the present invention, the automatic air bleeding valve can be used for a long period of time with little maintenance, and the maintenance cost can be significantly reduced.
第１図は本考案の自動空気抜き弁の１例を示す断面図、
第２図は従来型の自動空気抜き弁の１例を示す断面図で
ある。 １……ケーシング、４……球形フロート、５……上蓋、
８……本考案に用いる円筒状フロート。FIG. 1 is a sectional view showing an example of an automatic air vent valve of the present invention,
FIG. 2 is a sectional view showing an example of a conventional automatic air vent valve. 1 ... Casing, 4 ... Spherical float, 5 ... Top lid,
8: Cylindrical float used in the present invention.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−266283（ＪＰ，Ａ) 実開 昭51−33228（ＪＰ，Ｕ) 実開 昭50−134122（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-63-266283 (JP, A) Actually open 51-33228 (JP, U) Actually open 50-134122 (JP, U)
Claims (1)
る有孔蓋付円筒状のフロートと球形フロートとを有し、
かつこれらフロートを垂直方向に昇降せしめるガイド壁
を備え、該ガイド壁に沿って球形フロートを下方に配置
し、球形フロートより比重の小さい蓋付円筒状フロート
を上方に配置した自動空気抜き弁において、円筒状フロ
ートの円筒部内側にスペーサーを介して球形フロートと
接触する必要最小限の高さの円筒状弾性体が取付けられ
ており、蓋付円筒状フロートの該蓋部の孔径が10mm以上
で該円筒状弾性体の内径以下の寸法とされていることを
特徴とする自動空気抜き弁。1. A cylindrical float with a perforated lid and a spherical float each having a specific gravity of 1 or less in a casing,
And in an automatic air bleeding valve provided with a guide wall for vertically moving these floats, a spherical float is arranged below the guide wall, and a cylindrical float with a lid having a specific gravity smaller than that of the spherical float is arranged above the cylinder. A cylindrical elastic body of the minimum required height that contacts the spherical float through a spacer is attached to the inside of the cylindrical part of the cylindrical float, and the hole diameter of the lid part of the cylindrical float with a lid is 10 mm or more. An automatic air bleeding valve having a size equal to or smaller than the inner diameter of the elastic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990012797U JPH0749154Y2 (en) | 1990-02-14 | 1990-02-14 | Automatic air vent valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990012797U JPH0749154Y2 (en) | 1990-02-14 | 1990-02-14 | Automatic air vent valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03104572U JPH03104572U (en) | 1991-10-30 |
| JPH0749154Y2 true JPH0749154Y2 (en) | 1995-11-13 |
Family
ID=31516251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990012797U Expired - Lifetime JPH0749154Y2 (en) | 1990-02-14 | 1990-02-14 | Automatic air vent valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749154Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4694353B2 (en) * | 2005-11-15 | 2011-06-08 | 株式会社テイエルブイ | Exhaust valve |
| JP5684504B2 (en) * | 2010-07-15 | 2015-03-11 | 株式会社テイエルブイ | Float trap |
| US9409292B2 (en) | 2013-09-13 | 2016-08-09 | Sarcos Lc | Serpentine robotic crawler for performing dexterous operations |
-
1990
- 1990-02-14 JP JP1990012797U patent/JPH0749154Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03104572U (en) | 1991-10-30 |
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