CN2657119Y - Domestic gas leakage automatic alarm cut-off device - Google Patents

Abstract

The utility model discloses an automatic alarm cutter for domestic gas leakage. A valve which is series entered into a gas pipeline is fixedly connected with an electromagnet switch which is arranged on the upper surface of the valve and controls the automatic open or close of the valve. A wireless receiver is close to the peripheral of the electromagnet, the output signal of the wireless receiver is electrically connected with the electromagnet switch coil. A bore trepanning screw is fixed on the lower part of an iron core which is electrically connected with a buzzer. Passing through a rectangular hook-shaped lever; a gas-sensing detector which is separately arranged on a detecting point, a parallel connected low power launcher and the bore trepanning screw are connected with a gas valve. After the wireless receiver receives the gas leakage signal from the gas-sensing detector, the gas valve can be automatically closed by the electromagnet switch, and alarming. Thus the safe domestic gas using can be realized, the fire and explosion accidents can be avoided. The utility model has the advantages of wireless sending and receiving transmission signal between detecting mechanism and executive mechanism, no light line laying, making the kitchen bright and clean, adopting low voltage direct current power supply by the executive mechanism without sparking, safety and reliability.

Description

The household gas leakage autoalarm amputator

Affiliated technical field

The utility model relates to a kind of device that can in time survey, report to the police during to household gas leakage and cut off source of the gas automatically, specifically is the household gas leakage autoalarm amputator.

Background technology

All be wired connection between present Fuel Gas Leak Alarm air-sensitive detector and the topworks, it is not only not attractive in appearance to make the kitchen additionally lay open-wire line, and its power supply all is to adopt to exchange 220 volts, easily spark-over between connection terminal, dangerous, close the rotary pass of employing mechanical reducer valve on the valve mode, complex structure, poor reliability in topworks.

Summary of the invention

In order to overcome the deficiency that existing household gas leakage alarm open-wire line lays easy spark-over not attractive in appearance and pass valve inconvenience etc., the utility model provides a kind of household gas leakage autoalarm amputator, it is connected without open-wire line, attractive in appearance, no-spark, pass valve rapidly, convenient, reliable.

The technical scheme that its technical matters that solves the utility model adopts is: an air valve is fixedlyed connected with an electro-magnet switch of this air valve of control, wherein air valve is to be fixedlyed connected with the gas valve is coaxial by the valve bar, gas valve and valve seat are that the housing that places valve gap to engage with valve body movingly constitutes, this air valve both ends horizontal is connected in series in the gas pipeline, fixedly connected one vertically disposed coil and the iron core that slides up and down in the coil axis constitute an electro-magnet switch above the valve gap of air valve, the fixedly connected trepanning screw in iron core lower end, the trepanning screw is connected movingly with a long arm end that can center on the right angle hook-type lever of bearing pin swing, and the galianconism end hook of right angle hook-type bar goes into to be connection movingly in the valve bar hole; One micro radio receiver is fixedly connected near the electro-magnet switch shell, two output terminals of wireless receiver are electrically connected with the magnet spool two ends, this wireless receiver receives from the air-sensitive detector that is arranged on separately on the sensing point and triggers the electric wave that coupled low-power wireless transmitter sends, pass through spacing wireless with electric wave between this transmitter and the wireless receiver and connect, realize the interlock between air-sensitive detector, electro-magnet switch and the air valve thus.Under normal operating condition, the output of air-sensitive detector no signal, wireless launcher and receiver all are in the standby normality, when in case the dangerous concentrations of the burning that reaches certain, blast take place is leaked in combustion gas or combustion gas during normal use since rice to be cooked overflow gas flame is extinguished and combustion gas still when spraying outward and indoor when the unexpected condition of a fire and smog are arranged, the air-sensitive detecting element all can in time detect, and triggering transmitter transmission wireless signal immediately, hummer sends alarm sound simultaneously.The wireless receiver of holding state receives the signal of transmitter after amplification is input to topworks's magnet coil, inhale the upwards action of moving iron core, with hook-type lever counter-clockwise swing, other end valve bar and gas valve are drawn to the right through the trepanning screw, fuel gas pipeline is closed dead immediately, cuts off source of the gas.

Good effect of the present utility model is: the action of closing gas pipeline is very rapid, moment promptly finishes, more faster than mechanical reducer rotation pass valve, add that whole acquisition of signal emission transmits, receives, carries out and finish with radiowave, the centre does not have open-wire line to lay, and makes the kitchen brevity and lucidity, moreover the utility model adopts 12 volts of low-voltage dc power supplies for topworks, the exhausted anxiety of not having the jumping electric spark, safe and reliable.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model normal operating condition figure.

Fig. 2 be the utility model when running into unexpected dangerous situation gas circuit be closed constitutional diagram.

Fig. 3 is the air-sensitive detector electrical schematic diagram that is arranged on sensing point separately.

Among the figure: 1. electromagnet top board, 2. guide rod, 3. iron core, 4. valve gap, 5. fluid sealant bowl, 6. trepanning screw, 7. right angle hook-type lever, 8 bearing pins, 9. air valve seat, 10. valve bar, 11. manual pipe adapters, 12. gas valve, 13. valve body, 14. positioning balls, 15. stage clips, 16. wireless receivers, 17. the receiver guard shield, 18. coils, 19. cock pipe adapters, 20. air-sensitive detectors, 21. switch, 22. transmitters, 23. power supplys, 24. hummers.

Embodiment

In Fig. 1, the electro-magnet switch that opens and closes this air valve in the top of an air valve and a control is fixedlyed connected, and wherein to be, gas valve (12) fixedly connected with gas valve (12) by valve bar (10) with valve seat (9) be air valve is connected movingly and places valve gap (4) to constitute with the housing that valve body (13) engages; The fuel gas inlet end of this air valve is that manual pipe adapter (11) and endpiece are that cock pipe adapter (19) is connected in series respectively to go in the gas pipeline, and combustion gas flows to shown in the arrow among Fig. 1, to being connected on cock pipe adapter (19) combustion gas tool air feed afterwards.Fixedly connected one vertically disposed coil (18) and the iron core (3) that slides up and down along the axis of coil (18) constitute an electro-magnet switch on the valve gap (4) of air valve, realize by following part between this electro-magnet switch and the air valve and air valve between interlock, the fixedly connected trepanning screw (6) in iron core (3) lower end can be connected with valve bar (10) around the right angle hook-type lever (7) of bearing pin (8) swing movingly with one, one micro radio receiver (16) is fixedly connected near the electromagnet outer wall, and two output terminals of wireless receiver (16) circuit are electrically connected with coil (18).In Fig. 3, wireless receiver (16) receives from the air-sensitive detector output signal that is arranged on separately on the indoor sensing point that uses combustion gas and triggers the radiowave that wireless launcher (22) is launched, and connects with the radiowave that passes through the interior space of using combustion gas between transmitter (22) and the receiver (16).Input coil (18) is inhaled moving iron core (3) received the signal of transmitter (22) by receiver (16) after, drives the interlock between trepanning screw (6), hook-type bell crank (7) and valve bar (10) realization electro-magnet switch and automatic air valve.Fixedly connected with guide rod (2) in the upper end of the iron core (3) of electromagnetism monkey switch, positioning ball (14) is equipped with movingly in the two ends of adorning stage clip (15) in the cross-drilled hole of guide rod (2) upper end, steel ball (14) is positioned at or low groove in.

Fig. 3 is an air-sensitive detector electrical schematic diagram, and air-sensitive detector (20) can be established one or more, and the output signal of detector (20) is electrically connected with first line transmitter (22) of miniwatt in parallel and hummer (24).

Fig. 1 is that the utility model is under the normal operating condition, positioning ball (14) on the guide rod (2) is stuck in down in the detent, iron core (3), hook-type lever (7) is long-armed is flapped toward down clockwise, the other end of hook-type lever (7) dials valve bar (10) to the left side, the gas valve (12) of fixedlying connected with valve bar (10) is opened, by arrow points normally circulation from left to right, normally use for the combustion gas tool through cock pipe adapter (19) in the space of combustion gas between gas valve (12) and air valve seat (9).In case air-sensitive detector (20) detects gas leakage, when unexpected smog etc. take place, air-sensitive detector (20) triggers transmitter (22) emission electric wave immediately, hummer (24) sends chimes of doom simultaneously, the wireless receiver of holding state (16) receives the electric wave signal of transmitter (22), be input to magnet coil (18) through amplification, inhale moving iron core (2) upwards, positioning ball (14) on the guide rod (2) is stuck in the detent, iron core (3), trepanning screw (6) upwards, drive hook-type lever (7) counter-clockwise swing extremely with valve bar (10), gas valve (12) draws to the right, the combustion gas gas circuit is closed extremely, cut off fuel gas source automatically, be state shown in Figure 2.Get rid of when fault, the top of guide rod (2) is pressed downwards, can recover the ventilation user mode among Fig. 1 with hand.

Claims (2)

1, a kind of household gas leakage autoalarm amputator is by the air-sensitive detector, the miniwatt transmitter, receiver, electro-magnet switch and air valve combine, it is characterized in that an air valve with control this air valve electro-magnet switch fixedly connected, wherein air valve is by valve bar (10) and coaxial the fixedlying connected of gas valve (12), gas valve (12) is movingly with valve seat (9) and is connected, the housing that gas valve (12) and valve bar (10) place valve gap (4) to combine with valve body (13) constitutes an air valve, this air valve is connected in series in the gas pipeline, fixedly connected one vertically disposed coil (18) and the iron core (3) that slides up and down in the axis of coil (18) constitute an electro-magnet switch on valve gap (4), the trepanning screw (6) of being fixedlyed connected by iron core (3) lower end successively between this electro-magnet switch and the air valve, can be around the right angle hook-type lever (7) of bearing pin (8) swing, be connected movingly with valve bar (10); One micro radio receiver (16) is fixedly connected near the electro-magnet switch outer wall, wireless receiver (16) receives the electric wave that triggers low-power wireless transmitter (22) emission that connects together with it from the air-sensitive detector (20) that is arranged on sensing point separately, passes through the space with radiowave between receiver (16) and the transmitter (22) and connects.

2, household gas leakage autoalarm amputator according to claim 1, it is characterized in that the upper end cylindrical shell of iron core (3) of described electro-magnet switch inboard with guide rod (2) movingly, have up and down twice circumferential recess and positioning ball (14) movingly on it.

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