CN2203413Y - Safety device for fuel gas - Google Patents

Abstract

The utility model relates to a safety device for fuel gas. The safety device for fuel gas is composed of a normal indication alarm system, a flame alarm system and a gas alarm system, having the advantages of simple structure, convenient opening and closing, and multifunction of dangerous case (gas leakage and accidental extinguished flame) alarm.

Description

Safety device for fuel gas

The utility model relates to a kind of domestic gas protective device, especially can report to the police automatically, and switch is gas protector easily.

At present,, but still exist the gas leakage problem of detection alarm, switch inconvenience automatically, often poison, explosion accident though gas appliance is more and more advanced.

The utility model just provides a kind of gas protector, and it can not only detect gas leakage and report to the police automatically, and can realize full-automatic switch.

The purpose of this utility model is to realize (seeing accompanying drawing) like this.This gas protector is made up of conversion electric power, flame warning system and gas warning system.When using AC power, as long as K switch 2 is closed, electromagnet E2 produces magnetic field K switch 3 is held, AC power is connected, when power failure or use dc source, K2 is opened, electromagnet E2 magnetic field disappears, K switch 3 moves under spring action, connect with dc source, click driving button, contact 5,6 closures (contact 13,14 is closed under spring action, the E1 solenoid circuit is connected and is produced magnetic field, holds contact 1 driving button, 3,2,4 closures, contact 15,16,17,18 is closed under spring action, circuit is connected, and motor deceleration tumbler A rotates, and bull stick H goes to travel switch and drives button, contact 13,14,15,16,17,18 open, circuit disconnects, and electromagnet E1 magnetic field disappears, and drives button and sets back under spring action, simultaneously, tumbler A is rotated further in a flash under the electromotive force of reversible capacitance device B is supplied with, and purpose is in order thoroughly to open contact (the same B of the function of B1), tumbler A drives rotating shaft mounting board fourth and rotates, main valve is opened, when closing, as long as the button of checking on clicks, contact 7,8 closures (contact 21,22 is closed under spring action), electromagnet E produces magnetic field, and the button of checking on holds, contact 9,10,11,12 closures, (contact 27,29,28,30 is closed under spring action), circuit is connected, and motor deceleration tumbler A rotates, and bull stick H goes to travel switch and closes button, contact 21,22,27,29,28,30 open, circuit disconnects, and electromagnet E magnetic field disappears, and closes button and sets back under spring action, simultaneously, tumbler A is rotated further in a flash under the electromotive force of reversible capacitance device B is supplied with, and drives the mounting board fourth and rotates, under the effect of spring P, main valve fastened close.

When opening the gas tank main valve, contact 19,20 is closed under spring action, normal indicating device lamp or buzzer D1 work, and when machinery or circuit part damage, in the time of can not closing main valve, then normal indicating device D1 works on and reports to the police.

After the normal use of igniting, bimetal leaf contact 32 is heated and stretchs out, with contact 31 closures, (contact 36,37,40,41 is closed under spring action), circuit is connected, and motor deceleration tumbler A1 rotates, bull stick H1 goes to travel switch and drives button, contact 36,37,40,41 is opened, and simultaneously contact 34,35,37,39 closures (the same B of reversible capacitance device B1 function), motor deceleration device A1 stops operating; When fray-out of flame, contact 32 coolings are crooked, with contact 33 closures, circuit is connected, motor deceleration tumbler A rotates, and the gas tank main valve cuts out, simultaneously, contact 23,24,25,26 closures (contact 42,43,44,45 is closed under spring action), motor deceleration device A1 rotates, and bull stick H1 walks to travel switch and closes button, and contact 42,43,44,45 is opened, motor deceleration tumbler A1 stops operating, thus the insurance function of finishing.

K switch 1 is a normally closed switch, when the gas tank main valve can not cut out or flame is reported to the police malfunctioning and during gas leakage, then gas warning system D reports to the police automatically.

Owing to adopt such scheme, this gas protector has the function that switch convenience, gas leakage or fray-out of flame are reported to the police.

Describe the novel embodiment of this use in detail below in conjunction with accompanying drawing.

Fig. 1 is the circuit theory diagrams of gas protector.

Fig. 2 is the schematic diagram of gas protector.

During use, automation partly is installed in the gas tank top, the mounting board fourth is blocked main valve, an insurance F ignitor is fixed on the kitchen range dish flame, connects power supply, close K switch 2, click out button, gas tank can be opened automatically, then, open Range switch, Push switch K, the use of can lighting a fire is when closing, as long as click and close button or Range switch is closed, the gas tank main valve will cut out automatically.

Claims (3)

1, a kind of gas protector is characterized in that by normal indication warning system, and flame warning system, gas alarm system constitute.

2, according to claim 1, described gas protector is characterized in that normally indicating warning system to be reported to the police by indicating device lamp or buzzer D1 indication.

3, according to claim 1, described gas protector, when it is characterized in that gas leakage, gas warning system D can report to the police.

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