JPH09303464A - Dashpot device - Google Patents
Dashpot deviceInfo
- Publication number
- JPH09303464A JPH09303464A JP16227596A JP16227596A JPH09303464A JP H09303464 A JPH09303464 A JP H09303464A JP 16227596 A JP16227596 A JP 16227596A JP 16227596 A JP16227596 A JP 16227596A JP H09303464 A JPH09303464 A JP H09303464A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- hole
- piston rod
- opening
- 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
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
Description
【発明の属する技術分野】本発明は、水力発電所の流量
調整装置の閉鎖速度調整等に使用されるダッシュポット
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dashpot device used for adjusting a closing speed of a flow rate adjusting device of a hydraulic power plant.
【従来の技術】従来のダッシュポット装置は図２に示す
ようになっている。すなはち、筒状のシリンダ１の内部
に、ピストン２を固着されたピストンロッド３が、左右
移動自在に設けられている。また、シリンダ１の一端を
塞いでシリンダカバ５が取り付けられ、このシリンダカ
バ５の中に穿たれた穴とシリンダ１の他端とは配管６で
接続されている。シリンダ１と配管６には油が満たされ
ている。なお、４は、ピストンロッド３の一端に取り付
けられたストッパである。このように構成された従来の
ダッシュポット装置においては、ピストン２の左右移動
にしたがって、ピストンの両側の油が配管６を通って反
対側へ移行するが、そのときの粘性抵抗によってピスト
ン２の動きを抑制するようになっている。2. Description of the Related Art A conventional dashpot device is shown in FIG. That is, the piston rod 3 to which the piston 2 is fixed is provided inside the cylindrical cylinder 1 so as to be movable left and right. A cylinder cover 5 is attached so as to close one end of the cylinder 1, and a hole formed in the cylinder cover 5 and the other end of the cylinder 1 are connected by a pipe 6. The cylinder 1 and the pipe 6 are filled with oil. In addition, 4 is a stopper attached to one end of the piston rod 3. In the conventional dashpot device configured as described above, oil on both sides of the piston moves to the opposite side through the pipe 6 as the piston 2 moves left and right, but the viscous resistance at that time causes movement of the piston 2. Is designed to suppress.
【発明が解決しようとする課題】上記のような従来のダ
ッシュポット装置はその製作において、特にシリンダ１
の大きさ（直径、長さ）の小さいものでは、配管６の製
作と接続作業が難しい。配管６の曲げ加工が所定通りに
なっていないと、油の流通抵抗が変わり、所定のダッシ
ュポット特性が得られない。また、配管接続部で油漏れ
が発生することもある。そこで本発明は、配管の曲げ加
工や接続作業が不要で油漏れを生ずることのないダッシ
ュポット装置を提供することを目的とする。The conventional dashpot device as described above is manufactured especially in the cylinder 1.
If the size (diameter, length) is small, it is difficult to manufacture and connect the pipe 6. If the pipe 6 is not bent as prescribed, the flow resistance of the oil changes, and the prescribed dashpot characteristics cannot be obtained. Also, oil leakage may occur at the pipe connection. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a dashpot device that does not require oil bending and does not require pipe bending or connection work.
【課題を解決するための手段】本発明のダッシュポット
装置は、ピストンを固着され筒状のシリンダの内部に設
けられたピストンロッドの中心部軸方向に孔を設け、こ
の孔の一方の開口はピストンロッドの一方の端部とし他
方の開口はピストン２を越えた反対側とし、シリンダ内
に粘性流体を満たした構成とする。本発明のダッシュポ
ット装置は上記のように、ピストンロッド３内に貫通穴
７を設けるので、シリンダ１内での油循環が可能とな
り、従来の外部配管が不要となる。その結果、配管の曲
げ加工や接続作業が不要で油漏れを生ずることもなくな
る。In the dashpot device of the present invention, a hole is provided in the axial direction of the central portion of a piston rod provided inside a cylindrical cylinder to which a piston is fixed, and one opening of this hole is provided. One end of the piston rod and the other opening are on the opposite side beyond the piston 2, and the cylinder is filled with viscous fluid. Since the dashpot device of the present invention has the through hole 7 in the piston rod 3 as described above, oil circulation in the cylinder 1 is possible, and the conventional external piping is unnecessary. As a result, there is no need to bend or connect the pipes and oil leakage does not occur.
【発明の実施の形態】本発明の実施の形態を図２に示
す。すなはち、ピストンロッド３の中心部軸方向に貫通
穴７を設け、その一方の開口はストッパ４側とし、他方
の開口はピストン２を越えた反対側とする。ピストン２
の左右移動に伴う油の移動は、貫通穴７を通して行われ
る。このように、本発明のダッシュポット装置はピスト
ンロッド３内に貫通穴７を設けるので、シリンダ１内で
の油循環が可能となり、従来の外部配管が不要となる。
その結果、配管の曲げ加工や接続作業が不要で油漏れを
生ずることもなくなる。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention is shown in FIG. That is, the through hole 7 is provided in the central axial direction of the piston rod 3, one opening of which is on the stopper 4 side and the other opening is on the opposite side beyond the piston 2. Piston 2
The oil is moved along with the horizontal movement of the through the through hole 7. As described above, since the dashpot device of the present invention has the through hole 7 in the piston rod 3, it is possible to circulate oil in the cylinder 1 and the conventional external piping is not required.
As a result, there is no need to bend or connect the pipes and oil leakage does not occur.
【発明の効果】本発明によれば、配管の曲げ加工や接続
作業が不要で油漏れを生ずることのないダッシュポット
装置を提供することができる。As described above, according to the present invention, it is possible to provide a dashpot device which does not cause oil leakage because pipe bending work and connection work are unnecessary.
【図１】本発明の実施の形態のダッシュポット装置の断
面図FIG. 1 is a sectional view of a dashpot device according to an embodiment of the present invention.
【図２】従来のダッシュポット装置の断面図FIG. 2 is a sectional view of a conventional dashpot device.
１…シリンダ、 ２…ピストン、 ３…ピストンロッ
ド、 ４…ストッパ、５…シリンダカバ、 ６…配管、
７…貫通孔。1 ... Cylinder, 2 ... Piston, 3 ... Piston rod, 4 ... Stopper, 5 ... Cylinder cover, 6 ... Piping,
7 ... Through hole.
Claims (1)
に設けられたピストンロッドの中心部軸方向に孔を設
け、この孔の一方の開口はピストンロッドの一方の端部
とし他方の開口はピストンを越えた反対側とし、シリン
ダ内に粘性流体を満たしたことを特徴とするダッシュポ
ット装置。1. A hole is provided in a central axial direction of a piston rod provided inside a cylindrical cylinder to which a piston is fixed, and one opening of this hole is one end of the piston rod and the other opening is A dashpot device that is on the opposite side of the piston and has a cylinder filled with viscous fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16227596A JPH09303464A (en) | 1996-05-20 | 1996-05-20 | Dashpot device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16227596A JPH09303464A (en) | 1996-05-20 | 1996-05-20 | Dashpot device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09303464A true JPH09303464A (en) | 1997-11-25 |
Family
ID=15751381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16227596A Pending JPH09303464A (en) | 1996-05-20 | 1996-05-20 | Dashpot device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09303464A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454497A (en) * | 2013-09-16 | 2015-03-25 | 富鼎电子科技(嘉善)有限公司 | Draining device |
-
1996
- 1996-05-20 JP JP16227596A patent/JPH09303464A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454497A (en) * | 2013-09-16 | 2015-03-25 | 富鼎电子科技(嘉善)有限公司 | Draining device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A711 | Notification of change in applicant |
Effective date: 20040319 Free format text: JAPANESE INTERMEDIATE CODE: A712 |
|
| A977 | Report on retrieval |
Effective date: 20060427 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Effective date: 20060509 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20060919 |