JPS6184357U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an explanatory schematic diagram of a fire extinguishing safety device for a kerosene stove according to an embodiment of the present invention during standing flames and oxygen deficiency, Fig. 2 is a control circuit diagram of the same, and Fig. 3 shows standing flames and oxygen deficiency. FIG. 3 is a characteristic diagram showing the relationship between the top plate temperature and the resistance value of the heat-sensitive element in FIG. 3...Flame, 4...Heat-sensitive element, 6...Solenoid, 7
...Anti-earthquake automatic fire extinguishing system, 8...Control circuit, 13...Second
Comparator, 14...first comparator.

Claims (1)

[Scope of utility model registration request] It is equipped with a wick that forms a flame between the wick guide tube and the core outer tube, and is also equipped with an anti-seismic automatic fire extinguishing device that detects a fall or vibration and pulls down the wick to extinguish the fire. It is equipped with a heat-sensitive element 4 that senses temperature changes in the vicinity of the changing flame 3 and a control circuit 8 that is activated by this heat-sensitive element 4, and is activated when a flame rises by inputting signals from the heat-sensitive element 4, respectively. a first comparator 14 that operates when there is oxygen deficiency, a second comparator 13 that operates during oxygen deficiency, and a timer circuit C that operates after an appropriate time has elapsed after the start of ignition.
Anti-earthquake automatic fire extinguishing system 7 by the output logical sum or the output logical product of the second comparator 13 and the timer circuit C, respectively.
This fire extinguishing safety device is provided in a control circuit 8 and includes a solenoid 6 that operates the kerosene stove in the event of a standing flame or lack of oxygen.