JPS6128550Y2 - - Google Patents
Info
- Publication number
- JPS6128550Y2 JPS6128550Y2 JP8874881U JP8874881U JPS6128550Y2 JP S6128550 Y2 JPS6128550 Y2 JP S6128550Y2 JP 8874881 U JP8874881 U JP 8874881U JP 8874881 U JP8874881 U JP 8874881U JP S6128550 Y2 JPS6128550 Y2 JP S6128550Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- valve stem
- water
- bushing
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 238000007789 sealing Methods 0.000 claims description 26
- 238000012856 packing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Description
【考案の詳細な説明】 本考案は軸封装置の改良に関するものである。[Detailed explanation of the idea] The present invention relates to an improvement of a shaft sealing device.
従来のバルブを第１図および第２図に示す。１
は弁胴、９は弁胴１と一体化された弁胴軸受ボ
ス、２は弁体、３は弁体２に固着した弁軸、４は
弁胴軸受ボス９に嵌合した弁軸８を支持する弁軸
ブシユ、５は弁軸封水部材、６はパツキン抑え、
７は弁軸３の駆動装置である。 A conventional valve is shown in FIGS. 1 and 2. 1
9 is a valve body, 9 is a valve body bearing boss integrated with the valve body 1, 2 is a valve body, 3 is a valve stem fixed to the valve body 2, and 4 is a valve stem 8 fitted to the valve body bearing boss 9. A supporting valve stem bushing, 5 is a valve stem water sealing member, 6 is a packing retainer,
7 is a driving device for the valve shaft 3.
第３図は弁胴軸受ボス９と弁軸ブシユ４との間
にブシユケース８を嵌合させたものである。 FIG. 3 shows a bushing case 8 fitted between the valve body bearing boss 9 and the valve shaft bushing 4.
而して、弁軸封水部材は、第２図の場合は弁胴
軸３と弁軸ブシユ４、第３図の場合は弁胴軸受ボ
ス９とブシユケース８との間にＯリング等の止水
部品がないため、バルブ有水時において、弁軸封
水部材５が具合が悪くなつた場合、その取り換え
が不可能であり、取り換え時には抜水が必要条件
であつた。 The valve stem water sealing member includes a stop such as an O-ring between the valve body shaft 3 and the valve stem bushing 4 in the case of FIG. 2, and between the valve body bearing boss 9 and the bushing case 8 in the case of FIG. Since there is no water component, if the valve shaft water sealing member 5 becomes unwell when water is present in the valve, it is impossible to replace it, and water must be drained when replacing it.
本考案は従来の上記不具合を解決したもので、
弁胴と一体に形成される弁胴軸受ボスと弁胴軸受
ボス内に配置される弁軸との間に弁軸ブシユを設
け、弁軸ブシユの内外面にゴムパツキンを嵌入
し、弁軸ブシユの外側に弁軸封水部材を設けると
共に、一方を弁胴の流路に開口し、他方を弁軸ブ
シユの弁軸封水部材近傍に開口する通路を設け、
弁胴に通路に連通する給水弁を取り付け、通路の
途中に排水弁を設け、かつ、弁胴軸受ボスの頂部
に空気弁を取り付けた軸封装置である。 This invention solves the above-mentioned conventional problems.
A valve stem bushing is provided between the valve body bearing boss formed integrally with the valve body and the valve stem disposed within the valve body bearing boss, and rubber packing is inserted into the inner and outer surfaces of the valve stem bushing. A valve stem water sealing member is provided on the outside, and a passage is provided that opens one side into the flow path of the valve body and the other side opens near the valve stem water sealing member of the valve stem bushing,
This is a shaft sealing device in which a water supply valve communicating with a passage is attached to the valve body, a drain valve is provided in the middle of the passage, and an air valve is attached to the top of the valve body bearing boss.
そこで、通水時、給水弁および空気弁を開き、
排水弁を閉じ、空気弁にて空気を完全に抜いてか
ら空気弁を閉じ、それらの状態で弁軸を駆動す
る。 Therefore, when water is flowing, open the water supply valve and air valve.
Close the drain valve, remove the air completely with the air valve, close the air valve, and drive the valve stem in these conditions.
弁軸封水部材を取り換える時は、バルブ有水の
ままで、給水弁を閉じ、空気弁および排水弁を開
いた弁軸内の水を排水して弁軸封水部材を取り換
えるのである。 When replacing the valve stem water sealing member, the valve stem water sealing member is replaced by closing the water supply valve with water in the valve, draining the water in the valve stem with the air valve and drain valve open, and replacing the valve stem water sealing member.
第４図および第５図に夫々従来の第２図および
第８図を改良した本考案の実施例を示す。 FIGS. 4 and 5 show an embodiment of the present invention which is an improvement over the conventional ones shown in FIGS. 2 and 8, respectively.
１１は弁胴、１２は弁体、１３は弁軸、１４は
弁軸ブシユ、１５は弁軸封水部材、１６はパツキ
ン抑え、１７は弁軸１３の駆動装置、２４は弁胴
１１と一体化された弁胴軸受ボス、１８はブシユ
ケース（第５図のみ）で、これらのものは殆んど
従来の第２図および第３図と同じである。 11 is a valve body, 12 is a valve body, 13 is a valve stem, 14 is a valve stem bushing, 15 is a valve stem water sealing member, 16 is a packing retainer, 17 is a driving device for the valve stem 13, 24 is integrated with the valve stem 11 The valve body bearing boss 18 is a bushing case (FIG. 5 only), which are almost the same as those in the conventional FIGS. 2 and 3.
１９はＯリング等のゴムパツキンで、弁軸ブシ
ユ１４およびブシユケース１８の内外面に嵌入さ
れている。２０は一方が弁胴１１の流路に開口
し、他方が弁軸封水部材１５付近に開口する通
路、２１は弁胴１１に取り付けられた給水弁で、
通路２０が連通している。２２は通路２０の途中
に設けられた排水弁で、排水路に連通している。
２３は弁胴軸受ボス２４、弁軸ブシユ１４、ブシ
ユケース１８間の空気抜きおよび空気抽入用の空
気弁である。 Reference numeral 19 denotes a rubber gasket such as an O-ring, which is fitted into the inner and outer surfaces of the valve stem bush 14 and the bush case 18. 20 is a passageway that opens into the flow path of the valve body 11 and the other side opens near the valve shaft water sealing member 15; 21 is a water supply valve attached to the valve body 11;
A passage 20 is in communication. 22 is a drain valve provided in the middle of the passage 20 and communicates with the drain channel.
Reference numeral 23 designates an air valve for venting and inlet air between the valve body bearing boss 24, the valve stem bush 14, and the bush case 18.
本考案は上記の構造で、通水時には給水弁２１
および空気弁２３を全開し、排水弁２２を全閉
し、空気弁２３で空気を完全に抜いた状態で空気
弁２３を全閉して運転する。 The present invention has the above structure, and when water is flowing, the water supply valve 21
Then, the air valve 23 is fully opened, the drain valve 22 is fully closed, and the air valve 23 is fully evacuated, and the air valve 23 is fully closed for operation.
弁軸封水部材１５を取り換える時には、バルブ
有水のままで給水弁２１を全閉し、排水弁２２、
空気弁２３を全開して弁軸１３内の水を排水し、
弁軸封水部材１５を取り換える。 When replacing the valve stem water sealing member 15, fully close the water supply valve 21 with water still in the valve, drain valve 22,
Fully open the air valve 23 to drain the water inside the valve stem 13,
Replace the valve stem water sealing member 15.
以上述べたように本考案は、弁胴と一体に形成
される弁胴軸受ボスと弁胴軸受ボス内に配置され
る弁軸との間に弁軸ブシユを設け、弁軸ブシユの
内外面にゴムパツキンを嵌入し、弁軸ブシユの外
側に弁軸封水部材を設けると共に、一方を弁胴の
流路に開口し、他方を弁軸ブシユの弁軸封水部材
近傍に開口する通路を設け、弁胴に通路に連通す
る給水弁を取り付け、通路の途中に排水弁を設
け、かつ、弁胴軸受ボスの頂部に空気弁を取り付
けた軸封装置であるので、
(1) バルブの弁軸封水部材を有水時において簡単
に取り換え可能である。 As described above, the present invention provides a valve stem bushing between the valve body bearing boss formed integrally with the valve body and the valve stem disposed within the valve body bearing boss. Inserting a rubber seal and providing a valve stem water sealing member on the outside of the valve stem bushing, and providing a passage that opens on one side into the flow path of the valve body and on the other side near the valve stem water sealing member of the valve stem bushing, This is a shaft sealing device in which a water supply valve that communicates with the passage is attached to the valve body, a drain valve is provided in the middle of the passage, and an air valve is attached to the top of the valve body bearing boss. The water member can be easily replaced when water is present.
(2) 軸封部材取換時以外は常に弁軸封水部材に弁
胴内の圧力水を送水することにより弁軸封水部
材を水潤滑するので、弁軸封水部材の耐久性を
向上する。(2) The durability of the valve stem water sealing member is improved because the valve stem water sealing member is lubricated with water by constantly feeding the pressure water inside the valve body to the valve stem water sealing member except when replacing the shaft sealing member. do.
等の効果を有する。It has the following effects.
第１図は従来の軸封装置の断面図、第２図は第
１図のＡ部詳細図、第３図は第２図にブシユケー
スを嵌合させたものである。第４図および第５図
は本考案の実施例で、第４図は第２図に、第５図
は第３図に相当するものである。
１１……弁胴、１２……弁体、１３……弁軸、
１４……弁軸ブシユ、１５……弁軸封水部材、１
８……ブシユケース、２０……通路、１９……ゴ
ムパツキン、２１……給水弁、２２……排水弁、
２３……空気弁、２４……弁胴軸受ボス。
FIG. 1 is a sectional view of a conventional shaft sealing device, FIG. 2 is a detailed view of section A in FIG. 1, and FIG. 3 is a view of FIG. 2 fitted with a bushing case. 4 and 5 show embodiments of the present invention, with FIG. 4 corresponding to FIG. 2 and FIG. 5 corresponding to FIG. 3. 11... Valve body, 12... Valve body, 13... Valve stem,
14... Valve stem bushing, 15... Valve stem water sealing member, 1
8... Bush case, 20... Passage, 19... Rubber gasket, 21... Water supply valve, 22... Drain valve,
23...Air valve, 24...Valve body bearing boss.
Claims (1)
軸受ボス内に配置される弁軸との間に弁軸ブシユ
を設け、該弁軸ブシユの内外面にゴムパツキンを
嵌入し、前記弁軸ブシユの外側に弁軸封水部材を
設けると共に、一方を前記弁胴の流路に開口し、
他方を前記弁軸ブシユの前記弁軸封水部材近傍に
開口する通路を設け、前記弁胴に前記通路に連通
する給水弁を取り付け、前記通路の途中に排水弁
を設け、かつ、前記弁胴軸受ボスの頂部に空気弁
を取り付けたことを特徴とする軸封装置。 A valve stem bushing is provided between a valve body bearing boss formed integrally with the valve body and a valve stem disposed within the valve body bearing boss, and rubber packings are fitted into the inner and outer surfaces of the valve stem bushing. A valve shaft water sealing member is provided on the outside of the shaft bushing, and one side is opened to the flow path of the valve body,
The other side is provided with a passage that opens near the valve stem water sealing member of the valve stem bushing, a water supply valve communicating with the passage is attached to the valve body, a drain valve is provided in the middle of the passage, and the valve body is provided with a water supply valve that communicates with the passage. A shaft sealing device characterized by having an air valve attached to the top of the bearing boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8874881U JPS6128550Y2 (en) | 1981-06-18 | 1981-06-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8874881U JPS6128550Y2 (en) | 1981-06-18 | 1981-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57200785U JPS57200785U (en) | 1982-12-21 |
| JPS6128550Y2 true JPS6128550Y2 (en) | 1986-08-23 |
Family
ID=29883911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8874881U Expired JPS6128550Y2 (en) | 1981-06-18 | 1981-06-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6128550Y2 (en) |
-
1981
- 1981-06-18 JP JP8874881U patent/JPS6128550Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57200785U (en) | 1982-12-21 |
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