CN201306754Y - Household gas furnace provided with time delay flame-out device - Google Patents

Abstract

The utility model discloses a household gas furnace provided with a time delay flame-out device, which comprises a furnace platform (1), a furnace end (2), a joint nozzle of a gas pipe (3) and an electron lighter (4); the furnace end (2) is arranged in a central through hole of the furnace platform (1); the joint nozzle of the gas pipe (3) is arranged on the rear side wall of the furnace platform (1); and the electron lighter (4) is arranged on the front side wall of the furnace platform (1). The utility model is characterized in that the joint nozzle of the gas pipe (3) is connected with an output port of an electromagnetic valve (5) through a hose (7); and the electromagnetic valve (5) is connected with the time delay flame-out device (6) through a lead wire (8). The time delay flame-out device is added on a gas main of the household gas furnace provided with the time delay flame-out device, therefore, time can be preset when the gas furnace is turned on to cook meals or dishes; no matter how long the cook leaves away from the furnace, the furnace can shut off and extinguish automatically; and moreover, the gas main is shut off, so that the use is very safe.

Description

The house coal steam stove that has the blanket of delaying time

Technical field

The utility model relates to a kind of improvement of gas burner, specifically a kind of house coal steam stove that has the blanket of delaying time.

Background technology

At present, employed house coal steam stove, comprise that table, burner, coal gas pipe nipple, electronic lighter constitute, burner is located in the central through hole of table, the coal gas pipe nipple is located on the rear wall of table, electronic lighter is located on the front side wall of table, the existing deficiency of this gas burner is: cook or when cooking, if leave cooking stove, forgotten on the cooking stove and also caught fire beating to catch fire, the elderly particularly, often leaving stove has just forgotten also and at this moment, can stick with paste meal, dish in the thing of making meal or dish, or pot burnt out, even produce dangerous accident.

Summary of the invention

The purpose of this utility model is to provide a kind of prior setting burning time that can be in use artificial, and time-delay closing coal gas path increases safety in utilization, avoids because of forgetting the house coal steam stove that has the blanket of delaying time of pass stove generation accident.

For reaching above purpose, the technical scheme that the utility model adopted is: this has the house coal steam stove of the blanket of delaying time, by table, burner, the coal gas pipe nipple, electronic lighter constitutes, burner is located in the central through hole of table, the coal gas pipe nipple is located on the rear wall of table, electronic lighter is located on the front side wall of table, it is characterized in that on the coal gas pipe nipple, being connected with the output port of magnetic valve by sebific duct, the input port of magnetic valve is connected with gas piping, magnetic valve is connected with the time-delay blanket by lead, by time-delay blanket control coal gas input time, thus control gas burner ignition time.The utility model is also implemented by following measure: described time-delay blanket, constitute by box body, timing selecting switch, power switch, circuit board and battery, circuit board and battery are installed in the box body, power switch is located at the downside of the antetheca of box body, timing selecting switch is established 4, correspondence is 5 minutes, 10 minutes, 20 minutes, 30 minutes respectively, all is fixed on the upside of box portion front successively; Be that long delay is 65 minutes a time delay relay circuit on the circuit board, wherein: transistor BG ₁-BG ₃, timing resistor R ₁-R ₄Form on-off circuit with capacitor C; BG ₄Starting relay J, magnetic valve K then when relay J starts ₃Start K ₁Be power switch, K ₂Be timing selecting switch, press power switch K ₁, circuit is connected power supply, BG ₁-BG ₃Be cut-off state, BG ₄The conducting owing to forward bias, the relay J adhesive, the normally opened contact closure, magnetic valve K is opened in the relay J self-locking simultaneously ₃, capacitor C begins charging, the time-delay beginning.When reaching timing selecting switch institute preset time, the voltage on the capacitor C rises, and makes interconnecting tube BG ₁, BG ₂Become conducting by ending, the B point voltage is reduced to closely current potential, forces BG ₄End, relay J just disconnects like this, and normally opened contact disengages, and power supply is cut off, magnetic valve K ₃Be closed R simultaneously ₁-R ₄Four resistance are connected on timing selecting switch K respectively ₂The normally closed contact of four buttons on, finish the time-delay of 5 minutes, 10 minutes, 20 minutes and 30 minutes respectively, before pressing the button, each resistance is pressed timing selecting switch K all by short circuit ₂Button 1, with resistance R ₂Place in circuit was delayed time 5 minutes, in like manner, pressed timing selecting switch K respectively ₂Button 2,3 and 4, then delayed time respectively 10,20 and 30 minutes, press timing selecting switch K simultaneously ₂Button 1,2, timing resistor is R ₁+ R ₂, then delayed time 15 minutes; If timing selecting switch K ₂Four buttons all press, then delayed time 65 minutes.Resistance R 5 has two effects, and the one, protection BG ₁, BG ₂, BG ₃, avoid not pressing timing selecting switch K ₂The time and connect power supply, cause supply voltage directly to be added in BG ₃Base stage on; The 2nd, the check and correction time-delay is because R ₅Resistance value ratio R ₁-R ₄Much smaller, so can not influence precision regularly.Used transistor requires β〉50 get final product, but capacitor C selection work voltage is 10V, and leakage current is less than the electrolytic capacitor of 0.5 μ A.Delayed time accurately and also need be regulated W ₁, first short circuit R ₁-R ₄, use R ₅Do timing resistor and measure delay time, by regulating W ₁Making time-delay is 3 seconds.For same circuit, as not considering the effect of leakage of capacitor C, then delay time and timing resistor are proportional.Because of this circuit uses 100 μ F/10V electrolytic capacitor C, it is influential to leak electricity, so R ₃, R ₄Use the resistance of 3.6M Ω and 5.6M Ω respectively.Mix up W ₁After, check long delay, error should be less than ± 5%.

The beneficial effects of the utility model are: compare with the gas burner of present use, owing on gas main, added the time-delay blanket, opening that stove is made meal or when cooking, time can be scheduled to, from stove how long, the people no matter cook, stove can cut out flame-out automatically, and what close is gas main, so use as safe as a house.

Description of drawings

Fig. 1 looks schematic diagram for the utility model assembly structure master.

Fig. 2 is this practicality time-delay blanket office cross-sectional schematic.

Fig. 3 is the utility model circuit theory schematic diagram.

The specific embodiment

Make the utility model with reference to accompanying drawing 1,2,3.This has the house coal steam stove of the blanket of delaying time, constitute by table 1, burner 2, coal gas pipe nipple 3, electronic lighter 4, burner 2 is located in the central through hole of table 1, coal gas pipe nipple 3 is located on the rear wall of table 1, electronic lighter 4 is located on the front side wall of table 1, it is characterized in that being connected by the output port of sebific duct 7 with magnetic valve 5 on coal gas pipe nipple 3, the input port of magnetic valve 5 is connected with gas piping, and magnetic valve 5 is connected with time-delay blanket 6 by lead 8.Described time-delay blanket 6, constitute by box body 6a, timing selecting switch 6b, power switch 6c, circuit board 6d and battery 6e, circuit board 6d and battery 6e are installed in the box body 6a, power switch 6c is located at the downside of the antetheca of box body 6a, timing selecting switch 6b establishes 4, all is fixed on the upside of box body 6a antetheca successively; Be that long delay is 65 minutes a time delay relay circuit on the circuit board 6d, wherein: transistor BG ₁-BG ₃, timing resistor R ₁-R ₄Form on-off circuit, BG with capacitor C ₄Starting relay J then closes K switch when relay J starts ₃, K ₃Be magnetic valve 5, K ₁Be power switch 6c, K ₂Be timing selecting switch 6b, R ₁-R ₄Four resistance are connected on timing selecting switch K respectively ₂The normally closed contact of four buttons on, finish the time-delay of 5 minutes, 10 minutes, 20 minutes and 30 minutes respectively, before pressing the button, each resistance is pressed timing selecting switch K all by short circuit ₂Button 1, with resistance R ₁Place in circuit was delayed time 5 minutes, in like manner, pressed timing selecting switch K respectively ₂Button 2,3 and 4, then delayed time respectively 10,20 and 30 minutes, if press timing selecting switch K simultaneously ₂Button 1,2, timing resistor is R ₁+ R ₂, then time-delay is 15 minutes, if timing selecting switch K ₂Four buttons all press, then delayed time 65 minutes, used transistor requires β〉50 get final product, but capacitor C selection work voltage is 10V, and leakage current is less than the electrolytic capacitor of 0.5 μ A.

Claims (2)

1, a kind of house coal steam stove that has the blanket of delaying time, constitute by table (1), burner (2), coal gas pipe nipple (3), electronic lighter (4), burner (2) is located in the central through hole of table (1), coal gas pipe nipple (3) is located on the rear wall of table (1), electronic lighter (4) is located on the front side wall of table (1), it is characterized in that upward being connected by the output port of sebific duct (7) with magnetic valve (5) at coal gas pipe nipple (3), magnetic valve (5) is connected with time-delay blanket (6) by lead (8).

2, the house coal steam stove that has the blanket of delaying time according to claim 1, it is characterized in that described time-delay blanket (6), constitute by box body (6a), timing selecting switch (6b), power switch (6c), circuit board (6d) and battery (6e), circuit board (6d) and battery (6e) are installed in the box body (6a), power switch (6c) is located at the downside of the antetheca of box body (6a), timing selecting switch (6b) is established 4, all is fixed on the upside of box body (6a) antetheca successively.

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