JPS5819244U - Leak test equipment - Google Patents
Leak test equipmentInfo
- Publication number
- JPS5819244U JPS5819244U JP11405381U JP11405381U JPS5819244U JP S5819244 U JPS5819244 U JP S5819244U JP 11405381 U JP11405381 U JP 11405381U JP 11405381 U JP11405381 U JP 11405381U JP S5819244 U JPS5819244 U JP S5819244U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- throttle valve
- pressure gauge
- converts
- gas
- 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
- Examining Or Testing Airtightness (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考案の一実施例のリーク試験装置を示すブ
ロック図、第２図はこの考案に使用されるスロットルバ
ルブの構成を示す断面図である。
１：ピストン、２ニジリンダの排気側、３：負圧側排気
口、５：軸、６：ベローズ、７：弁座、８ニスプリング
、９：管路入口、１０：管路出口、１１：二−ドル弁、
１５：第２の圧力計、１６：第１の圧力計、１７：検出
器、１９． ２０． ２１：回転形真空ポンプ、２３：
被検体。FIG. 1 is a block diagram showing a leak test device according to an embodiment of this invention, and FIG. 2 is a sectional view showing the configuration of a throttle valve used in this invention. 1: Piston, 2 Exhaust side of cylinder, 3: Negative pressure side exhaust port, 5: Shaft, 6: Bellows, 7: Valve seat, 8 Spring, 9: Pipe inlet, 10: Pipe outlet, 11: Two- dollar valve,
15: second pressure gauge, 16: first pressure gauge, 17: detector, 19. 20. 21: Rotary vacuum pump, 23:
Subject.
Claims (1)
の被検体に接続されて所定の気圧以下で動作させるガス
検出器により、被検体内へリークした検出用ガスの有無
を調べるリーク試験装置において、前記被検体とガス検
出器との間にばね力を利用した常閉形スロットルバルブ
と、このスロットルバルブの入口圧を電気信号に変換す
る第１の圧力計と、同じくスロットルバルブの出口圧を
電気信号に変換する第２の圧力計と、前記第１の圧力計
の出力信号により前記被検体の圧力に対応して前記スロ
ットルバルブを開く側へ制御し、前記第２の圧力計の出
力信号により前記断検出器の圧力に対応して前記スロッ
トルバルブを閉の側へ制御するサーボ機構とを備え、前
記ガス検出器へのガス圧をすくなくとも前記の所定の気
圧以下に自動的に維持することを特徴としたリーク試験
装置。A leak test device that evacuates a test object in a leak detection gas atmosphere and uses a gas detector connected to the test object to operate at a predetermined atmospheric pressure or lower to check for the presence or absence of detection gas leaking into the test object. , a normally closed throttle valve that uses spring force is connected between the subject and the gas detector, a first pressure gauge that converts the inlet pressure of the throttle valve into an electric signal, and a first pressure gauge that converts the inlet pressure of the throttle valve into an electric signal. a second pressure gauge that converts into an electrical signal; and a second pressure gauge that controls the throttle valve to open in response to the pressure of the object based on the output signal of the first pressure gauge; and a servo mechanism that controls the throttle valve to the closed side in response to the pressure of the disconnection detector, and automatically maintains the gas pressure to the gas detector at least below the predetermined atmospheric pressure. A leak test device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11405381U JPS5819244U (en) | 1981-07-30 | 1981-07-30 | Leak test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11405381U JPS5819244U (en) | 1981-07-30 | 1981-07-30 | Leak test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5819244U true JPS5819244U (en) | 1983-02-05 |
Family
ID=29908341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11405381U Pending JPS5819244U (en) | 1981-07-30 | 1981-07-30 | Leak test equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5819244U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59171182U (en) * | 1983-04-30 | 1984-11-15 | 森 七郎 | spring device |
| JPS6087986U (en) * | 1983-11-25 | 1985-06-17 | ワイケイケイ株式会社 | Spring force adjustment device for torsion springs in lifting balancers |
| JPS6234072U (en) * | 1985-08-19 | 1987-02-28 |
-
1981
- 1981-07-30 JP JP11405381U patent/JPS5819244U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59171182U (en) * | 1983-04-30 | 1984-11-15 | 森 七郎 | spring device |
| JPS6087986U (en) * | 1983-11-25 | 1985-06-17 | ワイケイケイ株式会社 | Spring force adjustment device for torsion springs in lifting balancers |
| JPH0320469Y2 (en) * | 1983-11-25 | 1991-05-01 | ||
| JPS6234072U (en) * | 1985-08-19 | 1987-02-28 |
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