JPS55126172A - Automatic gas cutoff device - Google Patents
Automatic gas cutoff deviceInfo
- Publication number
- JPS55126172A JPS55126172A JP3322679A JP3322679A JPS55126172A JP S55126172 A JPS55126172 A JP S55126172A JP 3322679 A JP3322679 A JP 3322679A JP 3322679 A JP3322679 A JP 3322679A JP S55126172 A JPS55126172 A JP S55126172A
- Authority
- JP
- Japan
- Prior art keywords
- hook
- valve
- coil spring
- weight
- arm
- 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
- Safety Valves (AREA)
Abstract
PURPOSE: To cut off the gas circuit at the time of an earthquake regardless of the gas pressure by the method wherein the device is made to operate exactly in response to either a vertical or a horizontal shake, by means of a weight which is suspended so that it can oscillate.
CONSTITUTION: When the earthquake magnitude exceeds a certain value, weight 3 swings rod 8 downward against the force of coil spring 9 in the case of vertical shake; and weight 3 oscillates with its head as fulcrum, spacer 7 of spherical knot 4 inclines and functions as a cam and widens the distance between stationary wall surface 34 and the upper surface of bearing 35 against the force of coil spring 9 in the case of horizontal shake. Then, hook 17 at the end of arm 15 is released from the engagement with hook 16, arm 15 is pulled by coil spring 6, and it turns valve 32 on the same shaft and attaches packing 11 on valve seat 12 tightly, after the valve is closed automatically, fit hook 17 onto hook 16 on rod 8 by operating the knob fixed at the end of shaft 10; then valve 32 is raised and valve seat 12 is restored to the open condition.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3322679A JPS55126172A (en) | 1979-03-23 | 1979-03-23 | Automatic gas cutoff device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3322679A JPS55126172A (en) | 1979-03-23 | 1979-03-23 | Automatic gas cutoff device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55126172A true JPS55126172A (en) | 1980-09-29 |
Family
ID=12380532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3322679A Pending JPS55126172A (en) | 1979-03-23 | 1979-03-23 | Automatic gas cutoff device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55126172A (en) |
-
1979
- 1979-03-23 JP JP3322679A patent/JPS55126172A/en active Pending
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