JPH0165994U - - Google Patents
Info
- Publication number
- JPH0165994U JPH0165994U JP1987160845U JP16084587U JPH0165994U JP H0165994 U JPH0165994 U JP H0165994U JP 1987160845 U JP1987160845 U JP 1987160845U JP 16084587 U JP16084587 U JP 16084587U JP H0165994 U JPH0165994 U JP H0165994U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- inner hole
- support cylinder
- sealing device
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims 6
- 238000013459 approach Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 238000012856 packing Methods 0.000 description 2
Landscapes
- Details Of Valves (AREA)
Description
第１図は、本考案の第１実施例を示す中央縦断
正面図、第２図は、本考案の第２実施例を示す中
央縦断正面図、第３図は、本考案の第３実施例を
示す中央縦断正面図、第４図は、本考案の第４実
施例を示す中央縦断正面図、第５図は、一般的な
ボールバルブの正面図、第６図は、従来の弁軸シ
ール装置の例を示す中央縦断正面図である。
１……弁箱、１ａ……支持筒、１ｂ……内孔、
２……弁体、２ａ……係合凹部、３……弁軸、３
ａ……下端、３ｂ，３ｃ……直軸部、３ｄ……テ
ーパ部、４……パツキン、５……押圧環、６……
パツキン押え、７……ボルト、８……フランジ、
９……スラストベアリング、１１……弁箱、１１
ａ……支持筒、１１ｂ……内孔、２１……弁箱、
２１ａ……支持筒、２１ｂ……内孔、２３……弁
軸、２４……パツキン、３１……弁箱、３１ａ…
…支持筒、３１ｂ……内孔、３３……弁軸、３３
ａ……段部、３４……パツキン、５１……弁箱、
５１ａ……支持筒、５１ａ……内孔、５２……弁
体、５２ａ……係合凹部、５３……弁軸、５３ａ
……下端、５３ｂ……中央部、５４……パツキン
、５５……押圧環、５６……パツキン押え、５７
……ボルト、５８……フランジ、５９……スラス
トベアリング。
Fig. 1 is a central longitudinal sectional front view showing a first embodiment of the invention, Fig. 2 is a central longitudinal sectional front view showing a second embodiment of the invention, and Fig. 3 is a central longitudinal sectional front view showing a third embodiment of the invention. FIG. 4 is a central longitudinal sectional front view showing the fourth embodiment of the present invention, FIG. 5 is a front view of a general ball valve, and FIG. 6 is a conventional valve stem seal. FIG. 2 is a central longitudinal sectional front view showing an example of the device. 1...Valve box, 1a...Support cylinder, 1b...Inner hole,
2... Valve body, 2a... Engagement recess, 3... Valve stem, 3
a...Lower end, 3b, 3c...Right shaft portion, 3d...Tapered portion, 4...Puttlekin, 5...Press ring, 6...
Packing holder, 7... Bolt, 8... Flange,
9... Thrust bearing, 11... Valve box, 11
a...Support cylinder, 11b...Inner hole, 21...Valve box,
21a...Support tube, 21b...Inner hole, 23...Valve stem, 24...Packing, 31...Valve box, 31a...
...Support tube, 31b...Inner hole, 33...Valve shaft, 33
a...Double part, 34...Putskin, 51...Valve box,
51a...Support tube, 51a...Inner hole, 52...Valve body, 52a...Engagement recess, 53...Valve shaft, 53a
...lower end, 53b...center part, 54...packet, 55...pressing ring, 56...packet holder, 57
...Bolt, 58...Flange, 59...Thrust bearing.
Claims (1)
るようにした弁において、弁箱における支持筒の
内孔と弁軸との間隔を、弁体方向に向かつて、次
第に小とし、かつその間にパツキンを設けたこと
を特徴とする弁軸シール装置。 (2) 弁箱における支持筒の内孔内において、弁
軸を、弁体方向に向かつて、次第に拡径させてな
る実用新案登録請求の範囲第(1)項に記載の弁軸
シール装置。 (3) 弁箱における支持筒の内孔を、弁体方向に
向かつて、次第に縮径させてなる実用新案登録請
求の範囲第(1)項に記載の弁軸シール装置。 (4) 弁箱における支持筒の内孔内において、弁
軸を、弁体方向に向かつて、次第に拡径させると
ともに、前記内孔を、弁体方向に向かつて次第に
縮径させてなる実用新案登録請求の範囲第(1)項
に記載の弁軸シール装置。 (5) 弁箱における支持筒の内孔内において、弁
軸に、弁体に近い側が大径をなすテーパを付して
なる実用新案登録請求の範囲第(1)項ないし第(4)
項のいずれかに記載の弁軸シール装置。 (6) 弁箱における支持筒の内孔内において、弁
軸に弁体に近いほど大径をなす環状段部を付して
なる実用新案登録請求の範囲第(1)項ないし第(4)
項のいずれかに記載の弁軸シール装置。[Claims for Utility Model Registration] (1) In a valve whose valve body is opened and closed by rotating the valve stem, the distance between the inner hole of the support cylinder in the valve body and the valve stem should be adjusted in the direction of the valve body. A valve stem sealing device characterized in that the front end is gradually made smaller and a seal is provided between the two ends. (2) The valve stem sealing device according to claim 1, wherein the diameter of the valve stem gradually increases in the inner hole of the support cylinder in the valve body toward the valve body. (3) The valve shaft sealing device according to claim (1) of the utility model registration, wherein the diameter of the inner hole of the support cylinder in the valve body is gradually reduced toward the valve body. (4) A utility model in which the diameter of the valve stem gradually increases in the inner hole of the support cylinder in the valve body as it moves toward the valve body, and the diameter of the inner hole gradually decreases as it moves toward the valve body. A valve shaft sealing device according to registered claim (1). (5) Utility model registration claims (1) to (4) in which the valve stem is tapered so that the side closer to the valve body has a larger diameter in the inner hole of the support cylinder in the valve body.
The valve shaft sealing device according to any one of the items. (6) Utility model registration claims (1) to (4) in which an annular stepped portion is attached to the valve stem in the inner hole of the support cylinder in the valve body, the diameter of which increases as it approaches the valve body.
The valve shaft sealing device according to any one of the items.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160845U JPH0165994U (en) | 1987-10-22 | 1987-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160845U JPH0165994U (en) | 1987-10-22 | 1987-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0165994U true JPH0165994U (en) | 1989-04-27 |
Family
ID=31443267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987160845U Pending JPH0165994U (en) | 1987-10-22 | 1987-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0165994U (en) |
-
1987
- 1987-10-22 JP JP1987160845U patent/JPH0165994U/ja active Pending