JPS5813272A - Safety device for closing main gas valve - Google Patents

Safety device for closing main gas valve

Info

Publication number
JPS5813272A
JPS5813272A JP10875481A JP10875481A JPS5813272A JP S5813272 A JPS5813272 A JP S5813272A JP 10875481 A JP10875481 A JP 10875481A JP 10875481 A JP10875481 A JP 10875481A JP S5813272 A JPS5813272 A JP S5813272A
Authority
JP
Japan
Prior art keywords
notch
spring
force
valve
current supply
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
Application number
JP10875481A
Other languages
Japanese (ja)
Inventor
Kiichi Taga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP10875481A priority Critical patent/JPS5813272A/en
Publication of JPS5813272A publication Critical patent/JPS5813272A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position

Abstract

PURPOSE:To provide a main gas valve which is designed such that it is kept open by means of a notch type lever and is closed by the force of a spring when current supply is stopped, so that the gas leakage may not be caused at the time of interruption of current supply. CONSTITUTION:When a sector 2 is moved in a valve opening direction by the driving force of a motor 17 against the force of valve closing spring 13, a limit switch 25 is turned ON to stop operation of the motor 17. In this state, a notch 2' and a notch 3' are engaged completely with each other. On the other hand, when current supply is interrupted, an electromagnetic plunger 5 is pushed upward by a spring 6 and raises a ratchet lever 3 upward to such an extent that the notch 3' comes out of engagement with the notch 2'. Resultantly, the sector 2 is set free, so that the valve is closed by the force of the spring 13.
JP10875481A 1981-07-10 1981-07-10 Safety device for closing main gas valve Pending JPS5813272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10875481A JPS5813272A (en) 1981-07-10 1981-07-10 Safety device for closing main gas valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10875481A JPS5813272A (en) 1981-07-10 1981-07-10 Safety device for closing main gas valve

Publications (1)

Publication Number Publication Date
JPS5813272A true JPS5813272A (en) 1983-01-25

Family

ID=14492654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10875481A Pending JPS5813272A (en) 1981-07-10 1981-07-10 Safety device for closing main gas valve

Country Status (1)

Country Link
JP (1) JPS5813272A (en)

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