CN101876457B

CN101876457B - Flameout automatic cut-off device

Info

Publication number: CN101876457B
Application number: CN200910138184.7A
Authority: CN
Inventors: 冯石文
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-01
Filing date: 2009-05-01
Publication date: 2014-03-12
Anticipated expiration: 2029-05-01
Also published as: CN101876457A

Abstract

By pressing a switch knob of a burner to rotate, a gear under the knob and a fluted disc of a main shaft on a timer engages to rotate the timer and then the heart-shaped concavo-convex is rotated; when the mandril reaches the convex position, the mandril is popped up and the burner switch is turned on; it is ignited by the igniter; in the combusting status, the timer is positioned in the concave position of the heart-shaped concavo-convex where the mandril is. However, as the dual-metal sheet is bent by heating, the burner switch is still in the opening status with the gas being communicated, and the burner is still in combusting status, when the fire is out accidentally, the dual-metal sheet is cooled to return so as to turn off the burner. By pressing the burner switch to rotate, the gear under the knob and a fluted disc of a main shaft on a timer engages to rotate the timer; the positive circuit of a solenoid valve is connected; the solenoid valve is opened and the gas is ignited by the igniter; the flame during combustion heats the thermocouple to a certain temperature and then the thermocouple opens the positive circuit of the solenoid valve to keep the gas communicated so that the burner is in the combusting status. When the fire is out accidentally, the temperature of the thermocouple decreases; the negative circuit connecting the solenoid valve will close the solenoid valve. The invention is mainly used for automatically closing the gas when the fire of the burner is out, which is convenient to use.

Description

Flameout automatic cut-off device

One, technical field:

Electronics and machinery

Two, background technology:

Electronics and mechanical technique

Three, summary of the invention:

Flameout automatic cut-off device is divided into mechanical type and electronic type.

1, the mechanical gas automatic air obstructer that stops working

The flame-out automatic air obstructer of mechanical gas by 20 second timer, bimetal leaf, plunger switch, other device and originally identical.

Operation principle:

20 second timer remove power line, knob, installs fluted disc and heart-shaped concave, by bimetal leaf fixedly on burner.

Press burning machine switch knob, rotation, on the tooth under knob and timer, the tooth of the fluted disc of main shaft coincide, the rotation of drive timer, heart-shaped concave rotates, and push rod reaches protruding place, jack-up push rod, opens burnt gas switch, by igniter, is lighted, in fired state, the recess of timer playback push rod in heart-shaped concave, but because bimetal leaf is heated bending, still make burning machine switch place opening, keep combustion gas to be communicated with, burner is in fired state,, when closing switch knob.Or burning fire is by wind, the soup accidental cause such as boil extinguishes, and bimetal leaf is cooling, and bimetal leaf return is closed burning machine switch.Fire size is still controlled by burner knob.

Adding the object of timer, is before bimetal leaf is not heated to uniform temperature, fails to open burnt gas switch, just first opens burnt gas switch, need not the pushing time according to knob.

2, the electronic gas automatic air obstructer that stops working

The electronic gas automatic air obstructer that stops working: by 20 second timer, thermocouple, magnetic valve forms, other device and originally identical.

Operation principle:

Press burner knob, rotation, on tooth under knob and timer, the tooth of the fluted disc of main shaft coincide, and drives timer rotation, and magnetic valve forward circuit is communicated with, magnetic valve is opened, combustion gas is lighted by igniter, and burned flame is heated to uniform temperature by thermocouple, and thermocouple is opened magnetic valve forward circuit to keep combustion gas to be communicated with, burner is in fired state, when closing switch knob.Or burning fire is by wind, soup boils and waits accidental cause to extinguish, and electric thermo-couple temperature declines, and connection magnetic valve negater circuit is closed magnet valve.Fire size is still controlled by burner knob.

Adding the object of timer, is before thermocouple is not heated to uniform temperature, fails to open magnetic valve, just first opens magnetic valve, need not the pushing time according to knob

Four accompanying drawing explanations:

Fig. 1 presses the rotation of burning machine switch knob, and on the tooth under knob and timer, the tooth of the fluted disc of main shaft coincide, and drives timer rotation, heart-shaped concave rotates, and push rod reaches protruding place, jack-up push rod, open burnt gas switch, by igniter, lighted, in fired state, the recess of timer playback push rod in heart-shaped concave, but because bimetal leaf is heated bending, still make burning machine switch place opening, keep combustion gas to be communicated with, burner is in fired state,, when closing switch knob.Or burning fire is by wind, the soup accidental cause such as boil extinguishes, and the cooling bimetal leaf return of bimetal leaf is closed burning machine switch.

Fig. 2, press burner knob, rotation, on the tooth under knob and timer, the tooth of the fluted disc of main shaft coincide, the rotation of drive timer, magnetic valve forward circuit is communicated with, and opens magnetic valve, and combustion gas is lighted by igniter, burned flame is heated to uniform temperature by thermocouple, thermocouple is opened magnetic valve forward circuit to keep combustion gas to be communicated with, and burner is in fired state, when closing switch knob.Or burning fire is by wind, soup boils and waits accidental cause to extinguish, and electric thermo-couple temperature declines, and connection magnetic valve negater circuit is closed magnet valve

Five, the specific embodiment:

With other people R & D Cooperation.

Claims

1. the flame-out automatic air obstructer of a mechanical gas, by burning machine switch knob, 20 second timer, burnt gas switch, push rod, lever, connecting rod and bimetal leaf form, 20 second timer remove power line and knob, fluted disc and heart-shaped concave are installed, heart-shaped concave, push rod, lever, connecting rod and bimetal leaf are linked in sequence, bimetal leaf is fixedly on burner, press the rotation of burning machine switch knob, on tooth under burning machine switch knob and timer, the tooth of the fluted disc of main shaft coincide, the rotation of drive timer, heart-shaped concave rotates, push rod arrives the protruding place of heart-shaped concave, jack-up push rod, open burnt gas switch, igniter is lighted, in fired state, the recess of timer playback push rod in heart-shaped concave, because bimetal leaf is heated bending, still make burnt gas switch in opening, keep combustion gas to be communicated with, burner is in fired state, when closing burning machine switch knob, or burning fire is gone out by wind, the soup accidental cause that boils extinguishes, the cooling bimetal leaf return of bimetal leaf is closed burnt gas switch.