CN2279638Y

CN2279638Y - Multi-function gas protector

Info

Publication number: CN2279638Y
Application number: CN 96212176
Authority: CN
Inventors: 陆加孚
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-06-04
Filing date: 1996-06-04
Publication date: 1998-04-22
Anticipated expiration: 2006-06-04

Abstract

The utility model adopts sensing mechanism which is composed of a film sensing valve and a control mechanism which is combined with a sensing circuit that is composed of a gas sensing element. The utility model can automatically shut off coal gas when the coal gas is out of pressure and can be combusted normally. Meanwhile, the utility model can also automatically shut off coal gas and generate audible and visual alarm signals, when the coal gas in use is extinguished, or when carbon monoxide is generated by the incomplete combustion of the coal gas. The utility model integrates and alarm mechanism and a control mechanism into one body, has the advantages of small size and more functions, and can effectively reduce safety misadventures caused by coal gas leakage.

Description

The multi-function gas protector

The utility model is that a kind of coal gas is reported to the police and control device automatically.

For avoiding gas leakage to cause security incident, in " coal gas protector " patented claim (application number 88205144X), narrated a kind of drive by membrane sensor, and coal gas protector by solenoid control, it can coal gas stop for or take off and close coal gas under the pressure situation automatically and prevent once more air feed and gas poisoning takes place.This protector in the deficiency that exists on the function is: under the coal gas air feed normal condition, when the coal gas stove fire is extinguished or wind is gone out, can not close coal gas automatically; Ventilation condition is bad, when gas-fired not exclusively produces carbon monoxide, can not close coal gas automatically.Devices such as this protector solenoid, connecting rod are in gas chamber simultaneously, and membrane sensor is welded into basin shape by the punching press of sprung copper pool, and perishable and making is difficult for.The gas leakage alarm of Chu Xianing adopts the gas sensor circuit more in recent years, and sound, light warning function does not generally have gas automatic shutoff device, and what closing function was arranged individually is to report to the police and the device of controlling split.

The purpose of this utility model provide a kind of coal gas stop the supple of gas or steam or gas pressure very little, in the time of can not normal combustion, just can close coal gas automatically, simultaneously coal gas in use be extinguished, when incomplete combustion produces carbon monoxide, also can close coal gas automatically and carry out automatic sound, light warning, the police that collects newspapers is the multi-function gas protector of one with control gear.

The utility model is by achieving the above object by the following technical solutions.

Now illustrated in conjunction with the accompanying drawings.

Fig. 1 is a multi-function gas protector structural front view.

Fig. 2 is a multi-function gas protector circuit structural drawing.

The utility model is made up of lower position and member: base 1, dividing plate 5, loam cake 9 reach Tied mutually by diaphragm the transducer valve sensing mechanism that forms and the sensing circuit that is formed by gas sensor The controlling organization that closes is characterized in that: the diaphragm transducer valve is by spool 2, diaphragm 3, metal Sheet 4 forms, and spool 2 embeds in diaphragm 3 potholes, and spool 2 passes sheet metal 4 centers and sticking Knot is fixing, is pressed between dividing plate 5 and the base 1 air chamber 14 and top control around the diaphragm 3 Mechanism processed isolates fully; Diaphragm 3 is to be made by soft material, and diaphragm 3 centers form downwards Pothole protrudes formation hemispherical valve face below, and there is annular groove at diaphragm 3 edges.

The utility model base 1 similar common gate valve base, there is valve opening at the center, diaphragm 3 The hemispherical valve face can be blocked valve opening. Most of components and parts and circuit board are directly or pass through support Be fixed on the dividing plate 5, sliding bar 6 is connected with control lever 10 with pin at the A point, and can Move up and down in the guide slot of support 7, diaphragm 3, sheet metal 4, spool 2 can be gone up simultaneously Lower movement, spool 2 touches mutually with control lever 10 lower ends, and the above cover of control lever 10A point has bullet Spring 11, lower end drop on the A point pin, and the upper end is fixed on the support 7,12 liang of gangbar End respectively with support 7, button 13 connects. Contact P rivet clasp on dividing plate 5, automatic switch S and control lever 10 interlocks, linked switch and gangbar 12 interlocks, armature 8 and electromagnet Coil T is fixed on the support 7, is the state of leaving, and button 13 and indicator lamp are contained in loam cake 9 On.

In circuit, supply the sensing circuit integrated package, IC after alternating current process transformation, the rectification 1 pressure stabilization function, ic chip 2 oscillates amplifications, during the relay J energising, The closed J2 of J1 opens. In circuit, electromagnet coil T protection control, its spy have been taked Levy and be the automatic switch S that in electromagnet coil T and relay J 2 circuits, connected, In the control procedure, when the J2 closure, when electromagnet coil T inhaled moving armature 8, control lever 10 took off Detain drive automatic switch S and open, electromagnet coil T cuts off the power supply immediately, like this coil Only close gas check valve moment energising, and getting effectively protection, greatly reducing simultaneously protector Power consumption.

The utility model is to be connected between air supply pipe and the gas appliance when using, and energized.Diaphragm 3 is subjected to upward pressure during the coal gas air feed, but under the pressure of control lever 10 springs, air valve can not be opened.At this moment push button 13, gangbar 12 promotes sliding bar 6 guide slot on support 7 and moves up, and sliding bar 6 tops and armature 8 bayonet sockets are blocked, and control lever 10 is driven by sliding bar 6 and moves, and spring 11 is compressed, and moves valve open on the diaphragm transducer valve.Meanwhile, contact P is connected by sheet metal 4, and automatic switch S, linked switch K all connect, relay J Attraction strap J1 closure, and J2 disconnects simultaneously, and green light D2 is bright, and red light D1 goes out, the complete machine operate as normal.When stop the supple of gas or steam, air pressure is very little or during outlet Outer Tube accidental, air chamber 14 pressure descend, the diaphragm transducer valve falls after rise, and contact P disconnects, the relay J outage, J1 opens J2 and closes, magnet coil T inhales moving armature 8, and sliding bar 6 is threaded off, and control lever 10 is under spring 11 effects, back pressure diaphragm transducer valve is closed coal gas.During air feed, owing to do not push button 13, air valve can not be opened as previously mentioned, has just avoided gas leak once more, and this moment, hummer YD did not report to the police, and green light D2 goes out, and red light D1 is bright.Owing to be extinguished or incomplete combustion, when carbon monoxide reached finite concentration, gas sensor Q two ends resistance reduced at coal gas, and triode BG2 ends, the J outage, the sensing mechanism action is the same, closes coal gas, and green light D2 goes out, red light D1 is bright, and simultaneously owing to triode BG1 conducting, hummer YD reports to the police.When running into power failure and need use coal gas, push button 13, the diaphragm transducer valve is open-minded, and gas stove can normally use, but protector is inoperative.

The utility model newspaper collecting police and control gear are in one, and the compact conformation volume is little, and sensitive and durable function is many.

Embodiment: the multi-function gas protector except that the turnover pipe, for cylindrical, base 1, dividing plate 5, loam cake aluminium, spool 2 is used plastics, diaphragm 3 usefulness oil resistant rubbers are made circle, and sheet metal 4 is circular copper sheet, and gangbar 12, sliding bar 6, control lever 10 are for electroplating ironware.After the civilian electric transformation rectification, voltage 12V, gas sensor model TGS831, pilot lamp light emitting diode, ic chip 1 usefulness 7805, IC2 MC4011.Technical feature: when the gas leak carbonomonoxide concentration reaches 0.2--0.3 ‰, when liquefied petroleum gas leakage concentration reaches 1.4--2.0 ‰, can close gas check valve automatically, concurrently speak, visual alarm.When the coal gas supply gas pressure is reduced to 120 handkerchiefs, can close source of the gas automatically, send the light indication.

Claims

1, a kind of multi-function gas protector, reaching the sensing mechanism of being made up of the diaphragm transducer valve by base (1), dividing plate (5), loam cake (9) forms with the control gear that the sensing circuit of being made up of gas sensor combines, it is characterized in that the diaphragm transducer valve is made up of spool (2), diaphragm (3), sheet metal (4), spool (2) embeds in diaphragm (3) pothole, spool (2) passes sheet metal (4) center and is adhesively fixed, diaphragm (3) is pressed between dividing plate (5) and the base (1) all around, and air chamber (14) is isolated fully with the top control gear.

2, by the described protector of claim 1, it is characterized in that diaphragm (3) is to be made by the elastic soft material, diaphragm (3) center forms pothole downwards, protrudes below to form the semisphere valve face, and there is annular groove at diaphragm (3) edge.

3,, it is characterized in that in the gas sensor circuit automatic switch (S) of in the circuit of magnet coil (T) and relay (J2), having connected by the described protector of claim 1.