JPS5551234A - Apparatus for automatically closing lead-in pipe cock against abnormal impact at emergency such as earthquake - Google Patents
Apparatus for automatically closing lead-in pipe cock against abnormal impact at emergency such as earthquakeInfo
- Publication number
- JPS5551234A JPS5551234A JP12418478A JP12418478A JPS5551234A JP S5551234 A JPS5551234 A JP S5551234A JP 12418478 A JP12418478 A JP 12418478A JP 12418478 A JP12418478 A JP 12418478A JP S5551234 A JPS5551234 A JP S5551234A
- Authority
- JP
- Japan
- Prior art keywords
- cock
- earthquake
- wheel
- automatically closing
- working
- 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
- Regulation And Control Of Combustion (AREA)
- Safety Valves (AREA)
Abstract
PURPOSE: To facilitate the change in the adjustment of working sensitivity along with an accurate action while simplifying the returning to the normal condition after action in an apparatus for automatically closing the cock whenever abnormal vibration is applied by earthquake or the like.
CONSTITUTION: When vibration works from outside, a pendulum 2 including a spindle 5 with a ginbal 6 at the upper portion thereof swings horizontally on the upper portion. When the swing exceeds the set seismic intensity, a working arm 3 turns counterclockwise on the fulcrum 18, which causes a hook 3a at the tip to be disengaged from a engagement receiving hole 20 of a rotary wheel 19. Thereupon, the wheel 19 turns clockwise by a springing force of a pair of working springs with one end retained thereon and the other end fixed to a casing 1 through a lock fitting 28 to close a cock 23. To open the cock again, the wheel 19 is turned counterclockwise until the hook 3a engages the receiving hole 20.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12418478A JPS5551234A (en) | 1978-10-11 | 1978-10-11 | Apparatus for automatically closing lead-in pipe cock against abnormal impact at emergency such as earthquake |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12418478A JPS5551234A (en) | 1978-10-11 | 1978-10-11 | Apparatus for automatically closing lead-in pipe cock against abnormal impact at emergency such as earthquake |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5551234A true JPS5551234A (en) | 1980-04-14 |
Family
ID=14879050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12418478A Pending JPS5551234A (en) | 1978-10-11 | 1978-10-11 | Apparatus for automatically closing lead-in pipe cock against abnormal impact at emergency such as earthquake |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5551234A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4971094A (en) * | 1989-12-15 | 1990-11-20 | Gonzalez Ernest R | Safety valve system |
-
1978
- 1978-10-11 JP JP12418478A patent/JPS5551234A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4971094A (en) * | 1989-12-15 | 1990-11-20 | Gonzalez Ernest R | Safety valve system |
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