CN205194025U

CN205194025U - Residence community sewer marsh gas detection equipment

Info

Publication number: CN205194025U
Application number: CN201520986809.6U
Authority: CN
Inventors: 马磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-28
Filing date: 2015-11-28
Publication date: 2016-04-27
Anticipated expiration: 2025-11-28

Abstract

Residence community sewer marsh gas detection equipment, constitute by four probe mechanisms and a wireless receiver, every probe mechanism is by voltage reduction unit, first steady voltage unit, second steady voltage unit, a gas detecting unit, the time quantum, the wireless transmitting unit, first plastic case and second plastic case are constituteed, voltage reduction unit, first steady voltage unit, second steady voltage unit, the time quantum, the wireless transmitting unit is installed in first plastic case and is passed through the wire with gaseous detecting element and connect, gaseous detecting element installs in the second plastic case, wireless receiver constructs by the reduction voltage circuit, voltage stabilizing circuit, the wireless receiving unit, warning circuit and plastic casing are constituteed, reduction voltage circuit and voltage stabilizing circuit, the wireless receiving unit, warning circuit installs and connects in the plastic casing and through the wire. The utility model discloses when marsh gas concentration is increased to a definite value in the sewer in four position in district, can that which position marsh gas concentration has been surmounted through chimes of doom and the luminous suggestion district entrance guard directly perceived of emitting diode.

Description

Residential quarters sewer biogas detecting devices

Technical field

The utility model relates to gas detection alarm facility, especially one has four probe mechanisms, a wireless receiving mechanism, the gas detection cell of four probe mechanisms is arranged on the sewer being positioned at four orientation, community respectively, wireless receiving mechanism is arranged on community entrance guard place, when in the sewer in four orientation, wherein a place or many places biogas concentration are increased to certain value, under the interlock circuit effect of probe mechanism herein, the wireless transmitting unit of probe mechanism can launch wireless closure signal herein, after the radio receiving unit being positioned at entrance guard and locating wireless receiving mechanism receives wireless closure signal, the loudspeaker of wireless receiving mechanism warning circuit can send loud alarm sound, meanwhile in four light emitting diodes, corresponding one or more light emitting diode can obtain electroluminescence, together with chimes of doom visual cues entrance guard operator on duty be which orientation sewer in biogas concentration over-standard, thus entrance guard personnel can take counter-measure in the very first time, in order to avoid cause the residential quarters sewer biogas detecting devices of more major break down.

Background technology

At present, existing technology, automatic notifying cell entrance guard when biogas concentration reaches certain value in the sewer of a kind of Neng community useless, and demonstrate the device of biogas concentration over-standard in specifically which orientation sewer, when in sewer, biogas concentration reaches certain value, when its periphery has people's activity to produce Mars (as child plays firecrackers), easily biogas is lighted and set off an explosion, thus produce serious consequence.

Utility model content

In order to overcome existing technology, automatic notifying cell entrance guard when biogas concentration reaches certain value in the sewer of a kind of Neng community useless, and demonstrate the device of biogas concentration over-standard in specifically which orientation sewer, when in sewer, biogas concentration reaches certain value, when its periphery has people's activity to produce Mars (as child plays firecrackers), easily biogas is lighted and set off an explosion, thus produce the drawback of serious consequence, the utility model provides one and has four probe mechanisms, a wireless receiving mechanism, the gas detection cell of four probe mechanisms is arranged on the sewer being positioned at four orientation, community respectively, wireless receiving mechanism is arranged on community entrance guard place, when in the sewer in four orientation, wherein a place or many places biogas concentration are increased to certain value, under the interlock circuit effect of probe mechanism herein, the wireless transmitting unit of probe mechanism can launch wireless closure signal herein, after the radio receiving unit being positioned at entrance guard and locating wireless receiving mechanism receives wireless closure signal, the loudspeaker of wireless receiving mechanism warning circuit can send loud alarm sound, meanwhile in four light emitting diodes, corresponding one or more light emitting diode can obtain electroluminescence, together with chimes of doom visual cues entrance guard operator on duty be which orientation sewer in biogas concentration over-standard, thus entrance guard personnel can take counter-measure in the very first time, in order to avoid cause the residential quarters sewer biogas detecting devices of more major break down.

The utility model solves the technical scheme that its technical matters adopts:

Residential quarters sewer biogas detecting devices, it is characterized in that being made up of four probe mechanisms and a wireless receiving mechanism, each probe mechanism is by pressure unit, first voltage regulation unit, second voltage regulation unit, gas detection cell, time quantum, wireless transmitting unit, first plastic casing and the second plastic casing composition, on first plastic casing, there is a perforate at right-hand member rear portion, outside second plastic casing, respectively there is a stator at two ends, left and right, two stators respectively there is a perforate, pressure unit power input is connected by wire with 220V AC power the two poles of the earth, pressure unit cathode power supply output terminal and the first voltage regulation unit, second voltage regulation unit cathode power supply input end is connected by wire, first voltage regulation unit cathode power supply output terminal is connected by wire with gas detection cell cathode power supply input end, second voltage regulation unit cathode power supply output terminal is connected by wire with wireless transmitting unit cathode power supply input end, gas detection cell cathode power supply output terminal is connected by wire with time quantum cathode power supply input end, time quantum control signal output terminal is connected by wire with wireless transmitting unit control signal input end, pressure unit negative power supply output terminal and the first voltage regulation unit, second voltage regulation unit, gas detection cell, time quantum, the negative power supply input end of wireless transmitting unit passes through wired earth, pressure unit and the first voltage regulation unit, second voltage regulation unit, time quantum, wireless transmitting unit is arranged in the first plastic casing, and the first plastic casing is arranged on by the sewer of community, gas detection cell is arranged in the second plastics, and the second plastic casing is arranged in the sewer of community, wireless receiving mechanism is by reduction voltage circuit, mu balanced circuit, radio receiving unit, warning circuit and plastic casing composition, the anterior upper right side of plastic casing has four perforates, on plastic casing, there is a perforate at right-hand member rear portion, reduction voltage circuit power input is connected by wire with 220V AC power the two poles of the earth, reduction voltage circuit cathode power supply output terminal is connected by wire with mu balanced circuit cathode power supply input end, mu balanced circuit cathode power supply output terminal is connected by wire with radio receiving unit cathode power supply input end, radio receiving unit cathode power supply output terminal is connected by wire with warning circuit cathode power supply input end, radio receiving unit four signal output parts are connected by wire with warning circuit four signal input parts respectively, reduction voltage circuit negative power supply output terminal and mu balanced circuit, radio receiving unit, the negative power supply input end of warning circuit passes through wired earth, reduction voltage circuit and mu balanced circuit, radio receiving unit, warning circuit is arranged in plastic casing, and plastic casing is arranged on community entrance guard's duty room.

The described each probe mechanism pressure unit of four probe mechanisms is by power transformer, silicon rectifier diode and electrochemical capacitor composition, silicon rectifier diode has four, power transformer secondary winding is one end and first silicon rectifier diode negative pole wherein, second silicon rectifier diode positive pole is connected by wire, the power transformer secondary winding other end and the 3rd silicon rectifier diode negative pole, 4th silicon rectifier diode positive pole is connected by wire, second silicon rectifier diode negative pole and the 4th silicon rectifier diode negative pole, electrochemical capacitor positive pole is connected by wire, first silicon rectifier diode positive pole and the 3rd silicon rectifier diode positive pole, electrochemical capacitor negative pole passes through wired earth.

Four described probe mechanism each probe mechanism first voltage regulation units fix output voltage stabilizer by three ends and ceramic disc capacitor forms, ceramic disc capacitor has two, it is 7805 that three ends fix output voltage stabilizer model, 1 pin that three ends fix output voltage stabilizer is connected by wire with first ceramic disc capacitor one end, 3 pin that three ends fix output voltage stabilizer are connected by wire with second ceramic disc capacitor one end, and 2 pin that three ends fix output voltage stabilizer are connected by wire with first ceramic disc capacitor other end, second ceramic disc capacitor other end.

Four described probe mechanism each probe mechanism second voltage regulation units fix output voltage stabilizer by three ends and ceramic disc capacitor forms, ceramic disc capacitor has two, it is 78L12 that three ends fix output voltage stabilizer model, 1 pin that three ends fix output voltage stabilizer is connected by wire with first ceramic disc capacitor one end, 3 pin that three ends fix output voltage stabilizer are connected by wire with second ceramic disc capacitor one end, and 2 pin that three ends fix output voltage stabilizer are connected by wire with first ceramic disc capacitor other end, second ceramic disc capacitor other end.

The described each probe mechanism gas detection cell of four probe mechanisms is by resistance, gas sensitive device, adjustable resistance, relay and one-way SCR composition, gas sensitive device model is QM-N5, resistance one end and relay one normally opened contact end, relay cathode power supply input end, gas sensitive device first cathode power supply input end 1 pin is connected by wire, adjustable resistance one end and one-way SCR negative electrode, gas sensitive device negative power supply input end 4 pin passes through wired earth, the adjustable resistance other end and gas sensitive device are controlled power output end 2 pin and are connected by wire, adjustable resistance sliding contact power output end and one-way SCR are controlled pole and are connected by wire, one-way SCR anode is connected with relay negative power supply input end wire, the resistance other end is connected by wire with gas sensitive device second cathode power supply input end 1 pin.

The described each probe mechanism time quantum of four probe mechanisms is by resistance, transwitch diode, electrochemical capacitor, time-base integrated circuit, relay and NPN triode composition, resistance has two, time-base integrated circuit model is NE555, 4 pin of transwitch diode cathode and time-base integrated circuit and 8 pin, first resistance one end, second resistance one end, relay cathode power supply input end is connected by wire, transwitch diode cathode and electrochemical capacitor positive pole, 2 pin of time-base integrated circuit and 6 pin, second resistance other end is connected by wire, 3 pin of time-base integrated circuit are connected by wire with NPN transistor base, NPN transistor collector is connected by wire with relay negative power supply input end, 1 pin of time-base integrated circuit and first resistance other end, electrochemical capacitor negative pole, NPN transistor emitter passes through wired earth.

The described each probe mechanism wireless transmitting unit of four probe mechanisms is SR1500-4 type radio transmitter finished product, its wireless signal transmission distance is 1500 meters, SR1500-4 type radio transmitter finished product there are four wireless closure signal launch keyswitch, when wireless transmitting unit is arranged in the first plastic casing, the emitting antenna of SR1500-4 type radio transmitter finished product is positioned at the upper end of the first plastic casing upper right rear portion perforate.

Relay two normally opened contact ends of first probe mechanism time quantum in four described probe mechanisms and wireless transmitting unit control signal input end, the power contact that first on SR1500-4 type radio transmitter finished product wireless closure signal is launched under keyswitch is connected by wire, relay two normally opened contact ends of second probe mechanism time quantum in four probe mechanisms and wireless transmitting unit control signal input end, the power contact that second on SR1500-4 type radio transmitter finished product wireless closure signal is launched under keyswitch is connected by wire, relay two normally opened contact ends of the 3rd probe mechanism time quantum in four probe mechanisms and wireless transmitting unit control signal input end, the power contact that the 3rd on SR1500-4 type radio transmitter finished product wireless closure signal is launched under keyswitch is connected by wire, relay two normally opened contact ends of the 4th probe mechanism time quantum in four probe mechanisms and wireless transmitting unit control signal input end, the power contact that the 4th on SR1500-4 type radio transmitter finished product wireless closure signal is launched under keyswitch is connected by wire.

Described wireless receiving mechanism reduction voltage circuit is by power transformer, silicon rectifier diode and electrochemical capacitor composition, silicon rectifier diode has four, power transformer secondary winding is one end and first silicon rectifier diode negative pole wherein, second silicon rectifier diode positive pole is connected by wire, the power transformer secondary winding other end and the 3rd silicon rectifier diode negative pole, 4th silicon rectifier diode positive pole is connected by wire, second silicon rectifier diode negative pole and the 4th silicon rectifier diode negative pole, electrochemical capacitor positive pole is connected by wire, first silicon rectifier diode positive pole and the 3rd silicon rectifier diode positive pole, electrochemical capacitor negative pole passes through wired earth.

Described wireless receiving mechanism mu balanced circuit fixes output voltage stabilizer by three ends and ceramic disc capacitor forms, ceramic disc capacitor has two, it is 7805 that three ends fix output voltage stabilizer model, 1 pin that three ends fix output voltage stabilizer is connected by wire with first ceramic disc capacitor one end, 3 pin that three ends fix output voltage stabilizer are connected by wire with second ceramic disc capacitor one end, and 2 pin that three ends fix output voltage stabilizer are connected by wire with first ceramic disc capacitor other end, second ceramic disc capacitor other end.

Described wireless receiving mechanism radio receiving unit is by wireless receiving circuit, NPN triode, resistance and relay composition, wireless receiving circuit is the wireless receiving circuit finished product used that matches with SR1500-4 type radio transmitter finished product, 1 pin of wireless receiving circuit and relay cathode power supply input end, relay one normally opened contact end is connected by wire, 2 pin of wireless receiving circuit are connected by wire with resistance one end, the resistance other end is connected by wire with NPN transistor base, NPN transistor collector is connected by wire with relay negative power supply input end, 3 pin and the NPN transistor emitter of wireless receiving circuit pass through wired earth, when radio receiving unit is arranged on plastic casing inside, the receiving antenna of wireless receiving circuit is positioned at the upper end of plastic casing upper right rear portion perforate.

Described wireless receiving mechanism warning circuit is by integrated alarm circuit, PNP triode, loudspeaker, resistance and light emitting diode composition, resistance has four, light emitting diode has four, integrated alarm circuit model is LC170, 3 pin of integrated alarm circuit are connected by wire with PNP triode emitter, 2 pin of integrated alarm circuit are connected by wire with PNP triode base stage, PNP triode collector is connected by wire with loudspeaker one end, 1 pin of integrated alarm circuit and the loudspeaker other end, the negative pole of four light emitting diodes passes through wired earth, four light emitting diode positive poles respectively with four resistance one end are connected by wire, when warning circuit is arranged on plastic casing inside, the front end of four light emitting diodes is positioned at four perforates of the anterior upper right side of plastic casing.

The utility model beneficial effect is: before use, by the gas detection cell of four probe mechanisms by the perforate on two ends, left and right stator outside the second plastic casing, the sewer being positioned at four orientation, community is arranged on respectively with expansion bolt, wireless receiving mechanism is arranged on community entrance guard place, when in the sewer in four orientation, wherein a place or many places biogas concentration are increased to certain value, after the gas detection cell of probe mechanism detects herein, under time quantum effect, the wireless transmitting unit of probe mechanism can launch 3 second wireless closure signal; After the radio receiving unit being positioned at entrance guard and locating wireless receiving mechanism receives wireless closure signal, the loudspeaker of wireless receiving mechanism warning circuit can send loud alarm sound, meanwhile in four light emitting diodes, corresponding one or more light emitting diode can obtain electroluminescence, together with chimes of doom visual cues entrance guard operator on duty be which orientation sewer in biogas concentration over-standard, thus entrance guard personnel can take counter-measure in the very first time, in order to avoid cause larger accident.

Accompanying drawing explanation

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

Fig. 1 is the structural representation of one of them probe mechanism in the utility model four probe mechanisms: Fig. 2 is the structural representation of the utility model wireless receiving mechanism; Fig. 3 is the circuit diagram of one of them probe mechanism in the utility model four probe mechanisms; Fig. 4 is the circuit diagram of the utility model wireless receiving mechanism.

Embodiment

By Fig. 1, shown in Fig. 2, residential quarters sewer biogas detecting devices, be made up of four probe mechanisms and a wireless receiving mechanism, each probe mechanism is by pressure unit 101, first voltage regulation unit 102, second voltage regulation unit 103, gas detection cell 104, time quantum 105, wireless transmitting unit 106, first plastic casing 107 and the second plastic casing 108 form, on first plastic casing 107, there is a perforate 107-1 at right-hand member rear portion, outside second plastic casing 108, respectively there is a stator 108-1 at two ends, left and right, two stator 108-1 respectively there is a perforate, pressure unit 101 power input is connected by wire with 220V AC power the two poles of the earth, pressure unit 101 cathode power supply output terminal and the first voltage regulation unit 102, second voltage regulation unit 103 cathode power supply input end is connected by wire, first voltage regulation unit 102 cathode power supply output terminal is connected by wire with gas detection cell 104 cathode power supply input end, second voltage regulation unit 103 cathode power supply output terminal is connected by wire with wireless transmitting unit 106 cathode power supply input end, gas detection cell 104 cathode power supply output terminal is connected by wire with time quantum 105 cathode power supply input end, time quantum 105 control signal output terminal is connected by wire with wireless transmitting unit 106 control signal input end, pressure unit 101 negative power supply output terminal and the first voltage regulation unit 102, second voltage regulation unit 103, gas detection cell 104, time quantum 105, the negative power supply input end of wireless transmitting unit 106 passes through wired earth, pressure unit 101 and the first voltage regulation unit 102, second voltage regulation unit 103, time quantum 105, wireless transmitting unit 106 is arranged in the first plastic casing 107, and the first plastic casing 107 is arranged on by the sewer of community, gas detection cell 104 is arranged in the second plastics 108, and the second plastic casing 108 is arranged in the sewer of community, wireless receiving mechanism is by reduction voltage circuit 201, mu balanced circuit 202, radio receiving unit 203, warning circuit 204 and plastic casing 205 form, the anterior upper right side of plastic casing 205 has four perforate 205-1, on plastic casing 205, there is a perforate 205-2 at right-hand member rear portion, reduction voltage circuit 201 power input is connected by wire with 220V AC power the two poles of the earth, reduction voltage circuit 201 cathode power supply output terminal is connected by wire with mu balanced circuit 202 cathode power supply input end, mu balanced circuit 202 cathode power supply output terminal is connected by wire with radio receiving unit 203 cathode power supply input end, radio receiving unit 203 cathode power supply output terminal is connected by wire with warning circuit 204 cathode power supply input end, radio receiving unit 203 4 signal output parts are connected by wire with warning circuit 204 4 signal input parts respectively, reduction voltage circuit 201 negative power supply output terminal and mu balanced circuit 202, radio receiving unit 203, the negative power supply input end of warning circuit 204 passes through wired earth, reduction voltage circuit 201 and mu balanced circuit 202, radio receiving unit 203, warning circuit 204 is arranged in plastic casing 205, and plastic casing 205 is arranged on community entrance guard's duty room.106-1 is the emitting antenna of probe mechanism wireless transmitting unit; 203-1 is the wireless receiving circuit receiving antenna of wireless receiving mechanism radio receiving unit.Before using, by the gas detection cell 104 of four probe mechanisms by the perforate 108-1 on two ends, left and right stator outside the second plastic casing 108, be arranged on two expansion bolts the sewer being positioned at four orientation, community respectively, wireless receiving mechanism is arranged on community entrance guard place.At Fig. 1, pressure unit 101, first voltage regulation unit 102, in second voltage regulation unit 103: 220V AC power is reduced to 12V direct supply and entered the first voltage regulation unit 102 and the second voltage regulation unit 103 power input by pressure unit 101, so, the 12V direct supply of the second voltage regulation unit 103 power output end stable output enters wireless transmitting unit 106 power input, wireless transmitting unit 106 electricly must be in holding state, the 5V direct supply of the first voltage regulation unit 102 stable output enters gas detection cell 104 power input, gas detection cell 104 electricly must be in holding state, in gas detection cell 104: when in the sewer in four orientation, wherein a place or many places biogas concentration are increased to certain value, under the effect of gas detection cell 104 internal circuit, gas detection cell 104 power output end meeting out-put supply is to time quantum 105 power input, so time quantum 105 obtains electric work, in time quantum 105 and wireless transmitting unit 106: time quantum 105 after electric work, wireless transmitting unit 106 can launch 3 second wireless closure signal.At Fig. 2, in reduction voltage circuit 201, mu balanced circuit 202: 220V AC power is reduced to 12V direct supply and entered mu balanced circuit 202 power input by reduction voltage circuit 201, so, the 5V direct supply of mu balanced circuit 202 stable output enters radio receiving unit 203 power input, and radio receiving unit 203 electricly must be in holding state; In radio receiving unit 203 and warning circuit 204: after the wireless transmitting unit 106 of Fig. 1 probe mechanism launches wireless closure signal, now, radio receiving unit 203 can receive wireless closure signal, and out-put supply is in warning circuit 204, so warning circuit 204 obtains electric work; After warning circuit 204 obtains electric work, the loudspeaker of warning circuit 204 can send loud alarm sound and remind community entrance guard, meanwhile, one or more light emitting diode in four light emitting diodes of warning circuit 204 can mutually deserved electroluminescence, visual cues community entrance guard is biogas concentration over-standard in which place's sewer on earth, to adopt corresponding measure, avoid causing larger accident.

Shown in Fig. 3, four each probe mechanism pressure units of probe mechanism are by power transformer T1, silicon rectifier diode VD1, VD2, VD3, VD4 and electrochemical capacitor C1 forms, silicon rectifier diode has four, power transformer T1 secondary winding is one end and first silicon rectifier diode VD1 negative pole wherein, second silicon rectifier diode VD2 positive pole is connected by wire, the power transformer T1 secondary winding other end and the 3rd silicon rectifier diode VD3 negative pole, 4th silicon rectifier diode VD4 positive pole is connected by wire, second silicon rectifier diode VD2 negative pole and the 4th silicon rectifier diode VD4 negative pole, electrochemical capacitor C1 positive pole is connected by wire, first silicon rectifier diode VD1 positive pole and the 3rd silicon rectifier diode VD3 positive pole, electrochemical capacitor C1 negative pole passes through wired earth.Four probe mechanism each probe mechanism first voltage regulation units fix output voltage stabilizer A1 by three ends and ceramic disc capacitor C2, C3 form, ceramic disc capacitor has two, it is 7805 that three ends fix output voltage stabilizer A1 model, 1 pin that three ends fix output voltage stabilizer A1 is connected by wire with first ceramic disc capacitor C2 one end, 3 pin that three ends fix output voltage stabilizer A1 are connected by wire with second ceramic disc capacitor C3 one end, and 2 pin that three ends fix output voltage stabilizer A1 are connected by wire with first ceramic disc capacitor C2 other end, second ceramic disc capacitor C3 other end.Four probe mechanism each probe mechanism second voltage regulation units fix output voltage stabilizer A2 by three ends and ceramic disc capacitor C4, C5 form, ceramic disc capacitor has two, it is 78L12 that three ends fix output voltage stabilizer A2 model, 1 pin that three ends fix output voltage stabilizer A2 is connected by wire with first ceramic disc capacitor C4 one end, 3 pin that three ends fix output voltage stabilizer A2 are connected by wire with second ceramic disc capacitor C5 one end, and 2 pin that three ends fix output voltage stabilizer A2 are connected by wire with first ceramic disc capacitor C4 other end, second ceramic disc capacitor C5 other end.Four each probe mechanism gas detection cell of probe mechanism are by resistance R1, gas sensitive device Q, adjustable resistance RP, relay K 1 and one-way SCR VS form, gas sensitive device Q model is QM-N5, resistance R1 one end and relay K 1 one normally opened contact end, relay K 1 cathode power supply input end, gas sensitive device Q first cathode power supply input end 1 pin is connected by wire, adjustable resistance RP one end and one-way SCR VS negative electrode, gas sensitive device Q negative power supply input end 4 pin passes through wired earth, the adjustable resistance RP other end and gas sensitive device Q are controlled power output end 2 pin and are connected by wire, adjustable resistance RP sliding contact power output end and one-way SCR VS are controlled pole and are connected by wire, one-way SCR VS anode is connected with relay K 1 negative power supply input end wire, the resistance R1 other end is connected by wire with gas sensitive device Q second cathode power supply input end 1 pin.Four each probe mechanism time quantums of probe mechanism are by resistance R3, transwitch diode VD5, electrochemical capacitor C6, time-base integrated circuit A3, relay K 2 and NPN triode VT1 form, resistance has two, time-base integrated circuit A3 model is NE555, 4 pin of transwitch diode VD5 negative pole and time-base integrated circuit A3 and 8 pin, first resistance R2 one end, second resistance R3 one end, relay K 2 cathode power supply input end is connected by wire, transwitch diode VD5 positive pole and electrochemical capacitor C6 positive pole, 2 pin of time-base integrated circuit A3 and 6 pin, second resistance R3 other end is connected by wire, 3 pin of time-base integrated circuit A3 are connected by wire with NPN triode VT1 base stage, NPN triode VT1 collector is connected by wire with relay K 2 negative power supply input end, 1 pin of time-base integrated circuit A3 and first resistance R2 other end, electrochemical capacitor C6 negative pole, NPN triode VT1 emitter passes through wired earth.Four each probe mechanism wireless transmitting unit of probe mechanism are SR1500-4 type radio transmitter finished products, its wireless signal transmission distance is 1500 meters, SR1500-4 type radio transmitter finished product A4 there are four wireless closure signal launch keyswitch SQ1, SQ2, SQ3, SQ4, when wireless transmitting unit is arranged in the first plastic casing, the emitting antenna of SR1500-4 type radio transmitter finished product A4 is positioned at the upper end of the first plastic casing upper right rear portion perforate.Relay K 2 two normally opened contact ends of first probe mechanism time quantum in four probe mechanisms and wireless transmitting unit control signal input end, the power contact that first on SR1500-4 type radio transmitter finished product A4 wireless closure signal is launched under keyswitch SQ1 is connected by wire, relay K 2 two normally opened contact ends of second probe mechanism time quantum in four probe mechanisms and wireless transmitting unit control signal input end, the power contact that second on SR1500-4 type radio transmitter finished product A4 wireless closure signal is launched under keyswitch SQ2 is connected by wire, relay K 2 two normally opened contact ends of the 3rd probe mechanism time quantum in four probe mechanisms and wireless transmitting unit control signal input end, the power contact that the 3rd on SR1500-4 type radio transmitter finished product A4 wireless closure signal is launched under keyswitch SQ3 is connected by wire, relay K 2 two normally opened contact ends of the 4th probe mechanism time quantum in four probe mechanisms and wireless transmitting unit control signal input end, the power contact that the 4th on SR1500-4 type radio transmitter finished product A4 wireless closure signal is launched under keyswitch SQ4 is connected by wire.The armature winding two ends of pressure unit power input power transformer T1 are connected by wire with 220V AC power the two poles of the earth, pressure unit cathode power supply output terminal electrochemical capacitor C1 positive pole and the first voltage regulation unit cathode power supply input end three end fix 1 pin of output voltage stabilizer A1,1 pin that second voltage regulation unit cathode power supply input end three end fixes output voltage stabilizer A2 is connected by wire, 3 pin that first voltage regulation unit cathode power supply output terminal three end fixes output voltage stabilizer A1 are connected by wire with gas detection cell cathode power supply input pickup resistance R1 one end, 3 pin that second voltage regulation unit cathode power supply output terminal three end fixes output voltage stabilizer A2 are connected by wire with 1 pin of wireless transmitting unit cathode power supply input end SR1500-4 type radio transmitter finished product A4, another normally opened contact end of gas detection cell cathode power supply output terminal relay K 1 is connected by wire with 8 pin with 4 pin of time quantum cathode power supply input end time-base integrated circuit A3, the power contact that time quantum control signal output terminal relay K 2 two normally opened contact ends are launched under keyswitch with the closure signal on wireless transmitting unit control signal input end SR1500-4 type radio transmitter finished product A4 is connected by wire, pressure unit negative power supply output terminal electrochemical capacitor C1 negative pole and the first voltage regulation unit negative power supply input end three end fix 2 pin of output voltage stabilizer A1, second voltage regulation unit negative power supply input end three end fixes 2 pin of output voltage stabilizer A2,4 pin of gas detection cell negative power supply input end gas sensitive device Q, 1 pin of time quantum negative power supply input end time-base integrated circuit, 2 pin of wireless transmitting unit negative power supply input end SR1500-4 type radio transmitter finished product A4 pass through wired earth.

Shown in Fig. 4, wireless receiving mechanism reduction voltage circuit is by power transformer T2, silicon rectifier diode VD6, VD7, VD8, VD9 and electrochemical capacitor C7 forms, silicon rectifier diode has four, power transformer T2 secondary winding is one end and first silicon rectifier diode VD6 negative pole wherein, second silicon rectifier diode VD7 positive pole is connected by wire, the power transformer T2 secondary winding other end and the 3rd silicon rectifier diode VD8 negative pole, 4th silicon rectifier diode VD9 positive pole is connected by wire, second silicon rectifier diode VD7 negative pole and the 4th silicon rectifier diode VD9 negative pole, electrochemical capacitor C7 positive pole is connected by wire, first silicon rectifier diode VD6 positive pole and the 3rd silicon rectifier diode VD8 positive pole, electrochemical capacitor C7 negative pole passes through wired earth.Wireless receiving mechanism mu balanced circuit fixes output voltage stabilizer A5 by three ends and ceramic disc capacitor C8, C9 form, ceramic disc capacitor has two, it is 7805 that three ends fix output voltage stabilizer A5 model, 1 pin that three ends fix output voltage stabilizer A5 is connected by wire with first ceramic disc capacitor C8 one end, 3 pin that three ends fix output voltage stabilizer A5 are connected by wire with second ceramic disc capacitor C9 one end, and 2 pin that three ends fix output voltage stabilizer A5 are connected by wire with first ceramic disc capacitor C8 other end, second ceramic disc capacitor C9 other end.Wireless receiving mechanism radio receiving unit is by wireless receiving circuit A6, NPN triode VT2, resistance R4 and relay K 3 form, wireless receiving circuit A6 is the wireless receiving circuit finished product used that matches with SR1500-4 type radio transmitter finished product, 1 pin of wireless receiving circuit A6 and relay K 3 cathode power supply input end, relay K 3 one normally opened contact end is connected by wire, 2 pin of wireless receiving circuit A6 are connected by wire with resistance R4 one end, the resistance R4 other end is connected by wire with NPN triode VT2 base stage, NPN triode VT2 collector is connected by wire with relay K 3 negative power supply input end, 3 pin and the NPN triode VT2 emitter of wireless receiving circuit A6 pass through wired earth, when radio receiving unit is arranged on plastic casing inside, the receiving antenna of wireless receiving circuit A6 is positioned at the upper end of plastic casing upper right rear portion perforate.Wireless receiving mechanism warning circuit is by integrated alarm circuit A7, PNP triode VT3, loudspeaker B, resistance R5, R6, R7, R8 and light emitting diode VL1, VL2, VL3, VL4 composition, resistance has four, light emitting diode has four, and integrated alarm circuit A7 model is LC170, and 3 pin of integrated alarm circuit A7 are connected by wire with PNP triode VT3 emitter; 2 pin of integrated alarm circuit A7 are connected by wire with PNP triode VT3 base stage; PNP triode VT3 collector is connected by wire with loudspeaker B one end; 1 pin of integrated alarm circuit A7 and the loudspeaker B other end, the negative pole of four light emitting diodes VL1, VL2, VL3, VL4 passes through wired earth; Four light emitting diode VL1, VL2, VL3, VL4 positive poles respectively with four resistance R5, R6, R7, R8 one end are connected by wire; When warning circuit is arranged on plastic casing inside, the front end of four light emitting diodes VL1, VL2, VL3, VL4 is positioned at four perforates of the anterior upper right side of plastic casing.The armature winding two ends of reduction voltage circuit power input power transformer T2 are connected by wire with 220V AC power the two poles of the earth, reduction voltage circuit cathode power supply output terminal electrochemical capacitor C7 positive pole is connected by wire with 1 pin that mu balanced circuit cathode power supply input end three end fixes output voltage stabilizer A5, 3 pin that mu balanced circuit cathode power supply output terminal three end fixes output voltage stabilizer A5 are connected by wire with 1 pin of radio receiving unit cathode power supply input end wireless receiving circuit A6, another normally opened contact end of radio receiving unit cathode power supply output terminal relay K 3 is connected by wire with 3 pin of warning circuit cathode power supply input end integrated alarm circuit A7, 4 of radio receiving unit four signal output part wireless receiving circuit A6, 5, 6, 7 pin respectively with warning circuit four signal input part resistance R5, R6, R7, the R8 other end is connected by wire, reduction voltage circuit negative power supply output terminal electrochemical capacitor C7 negative pole and mu balanced circuit negative power supply input end three end fix 2 pin of output voltage stabilizer A5, 3 pin of radio receiving unit negative power supply input end wireless receiving circuit A6, 1 pin of warning circuit negative power supply input end integrated alarm circuit A7 passes through wired earth.

Below in conjunction with Fig. 3 and Fig. 4 the work between the utility model four probe mechanisms and wireless receiving mechanism done principle and function is described further.

Fig. 3, in the pressure unit of four probe mechanisms: after 220V AC power input power transformer T1, power transformer T1 power output end exports 12V AC power, and 12V AC power is converted to through silicon rectifier diode VD1, VD2, VD3, VD4 rectification, electrochemical capacitor C1 filtering the first voltage regulation unit and the second voltage regulation unit that direct supply enters four probe mechanisms.In first voltage regulation unit of four probe mechanisms: after the direct supply that pressure unit exports enters the first voltage regulation unit, under three ends fix output voltage stabilizer A1 and peripheral cell ceramic disc capacitor C1, C2 effect thereof, the 5V direct supply that three ends fix the 3 pin stable outputs of output voltage stabilizer A1 enters the gas detection cell power input of four probe mechanisms, and gas detection cell obtains and is electricly in holding state.In second voltage regulation unit of four probe mechanisms: after the direct supply that pressure unit exports enters the second voltage regulation unit, under three ends fix output voltage stabilizer A2 and peripheral cell ceramic disc capacitor C4, C5 effect thereof, the 12V direct supply that three ends fix the 3 pin stable outputs of output voltage stabilizer A2 enters the wireless transmitting unit power input of four probe mechanisms, so wireless transmitting unit obtains and is electricly in holding state.In the gas detection cell of four probe mechanisms: when in the orientation sewer of four, community, biogas concentration is not high, between 1 pin of gas sensitive device Q and 2 pin, conductance is very little, the voltage that adjustable resistance RP sliding contact exports is less than 0.7V, lower than the starting potential of one-way SCR VS, one-way SCR VS is not triggered; When in the sewer of community, wherein a place or many places biogas concentration exceed the safety value of restriction, between 1 pin of gas sensitive device Q and 2 pin, conductance increases rapidly, one-way SCR VS is triggered, then, relay K 1 two normally opened contact end of electric adhesive closes, relay K 1 two normally opened contact end of electric adhesive closed after, time quantum can obtain electric work, actual using, different sensitivity when gas sensitive device Q to detect biogas can be obtained by regulating the different resistance values of adjustable resistance RP.In the time quantum of four probe mechanisms: after time quantum obtains electric work, 5V direct supply charges to electrochemical capacitor C6 through resistance R3, when just starting, 2nd pin of time-base integrated circuit A3 is electronegative potential, time-base integrated circuit A3 set makes its 3rd pin export noble potential, the noble potential exported enters relay K 2 negative power supply input end through NPN triode VT1 power amplification, so, relay K 2 obtains two normally opened contact end of electric adhesive and closes, after about 3 seconds, when on electrochemical capacitor C6, terminal potential (i.e. time-base integrated circuit A3 the 6th pin current potential) rises to 2/3rds of power supply, time-base integrated circuit A3 is reset, its the 3rd pin exports electronegative potential, so, relay K 2 dead electricity disconnects.In the wireless transmitting unit of four probe mechanisms: when biogas concentration in community first place sewer arrives certain value, herein time quantum relay K 2 two normally opened contact end of electric adhesive closed after, due to, the power contact that the wireless closure signal of wireless transmitting unit SR1500-4 type radio transmitter finished product A4 is launched under keyswitch SQ1 is herein connected by wire with two normally opened contact ends of time quantum relay K 2, so, obtain in 3 closed seconds of two normally opened contact end of electric adhesive in relay K 2, power contact under the wireless closure signal transmitting keyswitch SQ1 of SR1500-4 type radio transmitter finished product A4 can be communicated with for 3 seconds, be equivalent to people and launch keyswitch SQ1 3 second with hand by the wireless closure signal of SR1500-4 type radio transmitter finished product A4, so, SR1500-4 type radio transmitter finished product A4 launches the wireless closure signal of the first via, when biogas concentration in community second place sewer arrives certain value, herein time quantum relay K 2 two normally opened contact end of electric adhesive closed after, due to, the power contact that the wireless closure signal of wireless transmitting unit SR1500-4 type radio transmitter finished product A4 is launched under keyswitch SQ2 is herein connected by wire with two normally opened contact ends of time quantum relay K 2, so, obtain in 3 closed seconds of two normally opened contact end of electric adhesive in relay K 2, power contact under the wireless closure signal transmitting keyswitch SQ2 of SR1500-4 type radio transmitter finished product A4 can be communicated with for 3 seconds, be equivalent to people and launch keyswitch SQ2 3 second with hand by the wireless closure signal of SR1500-4 type radio transmitter finished product A4, so, SR1500-4 type radio transmitter finished product A4 launches the second wireless closure signal in road, when biogas concentration in the place's sewer of community the 3rd arrives certain value, herein time quantum relay K 2 two normally opened contact end of electric adhesive closed after, due to, the power contact that the wireless closure signal of wireless transmitting unit SR1500-4 type radio transmitter finished product A4 is launched under keyswitch SQ3 is herein connected by wire with two normally opened contact ends of time quantum relay K 2, so, obtain in 3 closed seconds of two normally opened contact end of electric adhesive in relay K 2, power contact under the wireless closure signal transmitting keyswitch SQ3 of SR1500-4 type radio transmitter finished product A4 can be communicated with for 3 seconds, be equivalent to people and launch keyswitch SQ3 3 second with hand by the wireless closure signal of SR1500-4 type radio transmitter finished product A4, so, SR1500-4 type radio transmitter finished product A4 launches the 3rd wireless closure signal in road, when in community the everywhere sewer, biogas concentration arrives certain value, herein time quantum relay K 2 two normally opened contact end of electric adhesive closed after, due to, the power contact that the wireless closure signal of wireless transmitting unit SR1500-4 type radio transmitter finished product A4 is launched under keyswitch SQ4 is herein connected by wire with two normally opened contact ends of time quantum relay K 2, so, obtain in 3 closed seconds of two normally opened contact end of electric adhesive in relay K 2, power contact under the wireless closure signal transmitting keyswitch SQ4 of SR1500-4 type radio transmitter finished product A4 can be communicated with for 3 seconds, be equivalent to people and launch keyswitch SQ4 3 second with hand by the wireless closure signal of SR1500-4 type radio transmitter finished product A4, so, SR1500-4 type radio transmitter finished product A4 launches the 4th wireless closure signal in road.Fig. 4, in the reduction voltage circuit of wireless receiving mechanism: after 220V AC power input power transformer T2, power transformer T2 power output end exports 12V AC power, and 12V AC power is converted to direct supply enters mu balanced circuit through silicon rectifier diode VD6, VD7, VD8, VD9 rectification, electrochemical capacitor C7 filtering.In the mu balanced circuit of wireless receiving mechanism: after the direct supply that reduction voltage circuit exports enters mu balanced circuit, under three ends fix output voltage stabilizer A5 and peripheral cell ceramic disc capacitor C8, C9 effect thereof, the 5V direct supply that three ends fix the 3 pin stable outputs of output voltage stabilizer A5 enters radio receiving unit power input, so radio receiving unit obtains and is electricly in holding state.In the radio receiving unit of wireless receiving mechanism and warning circuit: when in community sewer first place, biogas concentration exceedes certain value, after the wireless transmitting unit SR1500-4 type radio transmitter finished product A4 of first place's probe mechanism launches the wireless closure signal of the first via, now, wireless receiving circuit A6 can receive the wireless closure signal of the first via and export high level from its 2nd pin, the high level exported enters PNP triode VT2 base stage through resistance R4 current limliting, relay K 3 negative power supply input end is entered through PNP triode VT2 power amplification, so, relay K 3 obtains two normally opened contact end of electric adhesive and closes, while 2 pin of wireless receiving circuit A6 export high level, 4 pin of wireless receiving circuit A6 can export high level, because the integrated alarm circuit A7 cathode power supply input end of warning circuit is connected by wire with another normally opened contact end of relay K 3, the resistance R5 other end is connected by wire with 4 pin of wireless receiving circuit A6, so, now, first light emitting diode VL1 can obtain electroluminescence, integrated alarm circuit A7 can obtain electric work from its 2nd pin output audio signal, the sound signal exported is through PNP triode VT3 power amplification, loudspeaker B is driven to send loud alarm sound visual cues community entrance guard together with first luminous light emitting diode VL1, biogas concentration value superelevation in community first place sewer, need to have taken measures, in order to avoid cause larger accident, when in community sewer second place, biogas concentration exceedes certain value, after the wireless transmitting unit SR1500-4 type radio transmitter finished product A4 of second place's probe mechanism launches the second wireless closure signal in road, now, wireless receiving circuit A6 can receive the second wireless closure signal in road and export high level from its 2nd pin, the high level exported enters PNP triode VT2 base stage through resistance R4 current limliting, relay K 3 negative power supply input end is entered through PNP triode VT2 power amplification, so, relay K 3 obtains two normally opened contact end of electric adhesive and closes, while 2 pin of wireless receiving circuit A6 export high level, 5 pin of wireless receiving circuit A6 can export high level, because the integrated alarm circuit A7 cathode power supply input end of warning circuit is connected by wire with another normally opened contact end of relay K 3, the resistance R6 other end is connected by wire with 5 pin of wireless receiving circuit A6, so, now, second light emitting diode VL2 can obtain electroluminescence, integrated alarm circuit A6 can obtain electric work from its 2nd pin output audio signal, the sound signal exported is through PNP triode VT3 power amplification, loudspeaker B is driven to send loud alarm sound visual cues community entrance guard together with second luminous light emitting diode VL2, biogas concentration value superelevation in community second place sewer, need to have taken measures, in order to avoid cause larger accident, when in community sewer the 3rd place, biogas concentration exceedes certain value, after the wireless transmitting unit SR1500-4 type radio transmitter finished product A4 of the 3rd place's probe mechanism launches the 3rd wireless closure signal in road, now, wireless receiving circuit A6 can receive the 3rd wireless closure signal in road and export high level from its 2nd pin, the high level exported enters PNP triode VT2 base stage through resistance R4 current limliting, relay K 3 negative power supply input end is entered through PNP triode VT2 power amplification, so, relay K 3 obtains two normally opened contact end of electric adhesive and closes, while 2 pin of wireless receiving circuit A6 export high level, 6 pin of wireless receiving circuit A6 can export high level, because the integrated alarm circuit A7 cathode power supply input end of warning circuit is connected by wire with another normally opened contact end of relay K 3, the resistance R7 other end is connected by wire with 6 pin of wireless receiving circuit A6, so, now, 3rd light emitting diode VL3 can obtain electroluminescence, integrated alarm circuit A7 can obtain electric work from its 2nd pin output audio signal, the sound signal exported is through PNP triode VT3 power amplification, loudspeaker B is driven to send loud alarm sound visual cues community entrance guard together with the 3rd luminous light emitting diode VL3, biogas concentration value superelevation in the place's sewer of community the 3rd, need to have taken measures, in order to avoid cause larger accident, when community sewer everywhere in biogas concentration exceed certain value, after the wireless transmitting unit SR1500-4 type radio transmitter finished product A4 of the probe mechanism everywhere launches the 4th wireless closure signal in road, now, wireless receiving circuit A6 can receive the 4th wireless closure signal in road and export high level from its 2nd pin, the high level exported enters PNP triode VT2 base stage through resistance R4 current limliting, relay K 3 negative power supply input end is entered through PNP triode VT2 power amplification, so, relay K 3 obtains two normally opened contact end of electric adhesive and closes, while 2 pin of wireless receiving circuit A6 export high level, 7 pin of wireless receiving circuit A6 can export high level, because the integrated alarm circuit A7 cathode power supply input end of warning circuit is connected by wire with another normally opened contact end of relay K 3, the resistance R8 other end is connected by wire with 7 pin of wireless receiving circuit A7, so, now, 4th light emitting diode VL4 can obtain electroluminescence, integrated alarm circuit A7 can obtain electric work from its 2nd pin output audio signal, the sound signal exported is through PNP triode VT3 power amplification, loudspeaker B is driven to send loud alarm sound visual cues community entrance guard together with the 4th luminous light emitting diode VL4, community is biogas concentration value superelevation in sewer everywhere, need to have taken measures, in order to avoid cause large accident.

Fig. 3, in four probe mechanism pressure units: power transformer T1 model is 220V/12V/3W, silicon rectifier diode VD1, VD2, VD3, VD4 model is 1N4001, and electrochemical capacitor C1 model is 470UF/12V; In four probe mechanism first voltage regulation units: it is 7805 that three ends fix output voltage stabilizer A1 model, ceramic disc capacitor C2 specification is 0.33UF, and ceramic disc capacitor C3 specification is 0.1UF; In four probe mechanism second voltage regulation units: it is 78L12 that three ends fix output voltage stabilizer A2 model, ceramic disc capacitor C4 specification is 0.33UF, and ceramic disc capacitor C5 specification is 0.1UF; In four probe mechanism gas detection cell: resistance R1 resistance is 10 Ω, gas sensitive device Q model is QM-N5, and adjustable resistance RP specification is 4.7K, and relay K 1 model is JRC/21F/YG4100/DC5V, and one-way SCR VS model is MCR/100/1; In four probe mechanism time quantums: resistance R2 resistance is 2K, resistance R3 resistance is 1M, switching diode VD5 model is 1N4148, electrochemical capacitor C6 model is 2.2UF/25V, time-base integrated circuit A3 model is NE555, relay K 2 model is JRC/21F/YG4100/DC5V, NPN triode VT1 model is 9013; Four probe mechanism wireless transmitting unit are SR1500-4 type radio transmitter finished products, and its wireless signal transmission distance is 1500 meters, SR1500-4 type radio transmitter finished product A4 have four wireless closure signal launch keyswitch.Fig. 4, in wireless receiving mechanism reduction voltage circuit: power transformer T2 model is 220V/12V/3W, silicon rectifier diode VD6, VD7, VD8, VD9 model is 1N4001, and electrochemical capacitor C7 model is 470UF/12V; In wireless receiving mechanism mu balanced circuit: it is 7805 that three ends fix output voltage stabilizer A5 model, ceramic disc capacitor C8 specification is 0.33UF, and ceramic disc capacitor C9 specification is 0.1UF; In wireless receiving mechanism radio receiving unit, wireless receiving circuit A6 is the wireless receiving circuit finished product used that matches with SR1500-4 type radio transmitter finished product A4, NPN triode VT2 model is 9013, and relay K 3 model is JRC/21F/YG4100/DC5V, and resistance R4 resistance is 1K; In the warning circuit of wireless receiving mechanism: integrated alarm circuit A7 model is LC170, PNP triode VT3 model is 9012, loudspeaker B is the small-bore coil-moving speaker of power 0.25W, resistance R5, R6, R7, R8 resistance is 100 Ω, the red light emitting diodes of light emitting diode VL1, VL2, VL3, VL4 to be working current be 5mA.

Claims

1. residential quarters sewer biogas detecting devices, it is characterized in that being made up of four probe mechanisms and a wireless receiving mechanism, each probe mechanism is by pressure unit, first voltage regulation unit, second voltage regulation unit, gas detection cell, time quantum, wireless transmitting unit, first plastic casing and the second plastic casing composition, on first plastic casing, there is a perforate at right-hand member rear portion, outside second plastic casing, respectively there is a stator at two ends, left and right, two stators respectively there is a perforate, pressure unit power input is connected by wire with 220V AC power the two poles of the earth, pressure unit cathode power supply output terminal and the first voltage regulation unit, second voltage regulation unit cathode power supply input end is connected by wire, first voltage regulation unit cathode power supply output terminal is connected by wire with gas detection cell cathode power supply input end, second voltage regulation unit cathode power supply output terminal is connected by wire with wireless transmitting unit cathode power supply input end, gas detection cell cathode power supply output terminal is connected by wire with time quantum cathode power supply input end, time quantum control signal output terminal is connected by wire with wireless transmitting unit control signal input end, pressure unit negative power supply output terminal and the first voltage regulation unit, second voltage regulation unit, gas detection cell, time quantum, the negative power supply input end of wireless transmitting unit passes through wired earth, pressure unit and the first voltage regulation unit, second voltage regulation unit, time quantum, wireless transmitting unit is arranged in the first plastic casing, and the first plastic casing is arranged on by the sewer of community, gas detection cell is arranged in the second plastics, and the second plastic casing is arranged in the sewer of community, wireless receiving mechanism is by reduction voltage circuit, mu balanced circuit, radio receiving unit, warning circuit and plastic casing composition, the anterior upper right side of plastic casing has four perforates, on plastic casing, there is a perforate at right-hand member rear portion, reduction voltage circuit power input is connected by wire with 220V AC power the two poles of the earth, reduction voltage circuit cathode power supply output terminal is connected by wire with mu balanced circuit cathode power supply input end, mu balanced circuit cathode power supply output terminal is connected by wire with radio receiving unit cathode power supply input end, radio receiving unit cathode power supply output terminal is connected by wire with warning circuit cathode power supply input end, radio receiving unit four signal output parts are connected by wire with warning circuit four signal input parts respectively, reduction voltage circuit negative power supply output terminal and mu balanced circuit, radio receiving unit, the negative power supply input end of warning circuit passes through wired earth, reduction voltage circuit and mu balanced circuit, radio receiving unit, warning circuit is arranged in plastic casing, and plastic casing is arranged on community entrance guard's duty room.

2. residential quarters according to claim 1 sewer biogas detecting devices, it is characterized in that four each probe mechanism pressure units of probe mechanism are by power transformer, silicon rectifier diode and electrochemical capacitor composition, silicon rectifier diode has four, power transformer secondary winding is one end and first silicon rectifier diode negative pole wherein, second silicon rectifier diode positive pole is connected by wire, the power transformer secondary winding other end and the 3rd silicon rectifier diode negative pole, 4th silicon rectifier diode positive pole is connected by wire, second silicon rectifier diode negative pole and the 4th silicon rectifier diode negative pole, electrochemical capacitor positive pole is connected by wire, first silicon rectifier diode positive pole and the 3rd silicon rectifier diode positive pole, electrochemical capacitor negative pole passes through wired earth.

3. residential quarters according to claim 1 sewer biogas detecting devices, it is characterized in that four probe mechanism each probe mechanism first voltage regulation units fix output voltage stabilizer by three ends and ceramic disc capacitor forms, ceramic disc capacitor has two, it is 7805 that three ends fix output voltage stabilizer model, 1 pin that three ends fix output voltage stabilizer is connected by wire with first ceramic disc capacitor one end, 3 pin that three ends fix output voltage stabilizer are connected by wire with second ceramic disc capacitor one end, three ends fix 2 pin and first ceramic disc capacitor other end of output voltage stabilizer, second ceramic disc capacitor other end is connected by wire.

4. residential quarters according to claim 1 sewer biogas detecting devices, it is characterized in that four each probe mechanism gas detection cell of probe mechanism are by resistance, gas sensitive device, adjustable resistance, relay and one-way SCR composition, gas sensitive device model is QM-N5, resistance one end and relay one normally opened contact end, relay cathode power supply input end, gas sensitive device first cathode power supply input end 1 pin is connected by wire, adjustable resistance one end and one-way SCR negative electrode, gas sensitive device negative power supply input end 4 pin passes through wired earth, the adjustable resistance other end and gas sensitive device are controlled power output end 2 pin and are connected by wire, adjustable resistance sliding contact power output end and one-way SCR are controlled pole and are connected by wire, one-way SCR anode is connected with relay negative power supply input end wire, the resistance other end is connected by wire with gas sensitive device second cathode power supply input end 1 pin.

5. residential quarters according to claim 1 sewer biogas detecting devices, it is characterized in that four each probe mechanism time quantums of probe mechanism are by resistance, transwitch diode, electrochemical capacitor, time-base integrated circuit, relay and NPN triode composition, resistance has two, time-base integrated circuit model is NE555, 4 pin of transwitch diode cathode and time-base integrated circuit and 8 pin, first resistance one end, second resistance one end, relay cathode power supply input end is connected by wire, transwitch diode cathode and electrochemical capacitor positive pole, 2 pin of time-base integrated circuit and 6 pin, second resistance other end is connected by wire, 3 pin of time-base integrated circuit are connected by wire with NPN transistor base, NPN transistor collector is connected by wire with relay negative power supply input end, 1 pin of time-base integrated circuit and first resistance other end, electrochemical capacitor negative pole, NPN transistor emitter passes through wired earth.

6. residential quarters according to claim 1 sewer biogas detecting devices, it is characterized in that four each probe mechanism wireless transmitting unit of probe mechanism are SR1500-4 type radio transmitter finished products, its wireless signal transmission distance is 1500 meters, SR1500-4 type radio transmitter finished product there are four wireless closure signal launch keyswitch, when wireless transmitting unit is arranged in the first plastic casing, the emitting antenna of SR1500-4 type radio transmitter finished product is positioned at the upper end of the first plastic casing upper right rear portion perforate.

7. residential quarters according to claim 6 sewer biogas detecting devices, it is characterized in that relay two normally opened contact ends and the wireless transmitting unit control signal input end of first probe mechanism time quantum in four probe mechanisms, the power contact that first on SR1500-4 type radio transmitter finished product wireless closure signal is launched under keyswitch is connected by wire, relay two normally opened contact ends of second probe mechanism time quantum in four probe mechanisms and wireless transmitting unit control signal input end, the power contact that second on SR1500-4 type radio transmitter finished product wireless closure signal is launched under keyswitch is connected by wire, relay two normally opened contact ends of the 3rd probe mechanism time quantum in four probe mechanisms and wireless transmitting unit control signal input end, the power contact that the 3rd on SR1500-4 type radio transmitter finished product wireless closure signal is launched under keyswitch is connected by wire, relay two normally opened contact ends of the 4th probe mechanism time quantum in four probe mechanisms and wireless transmitting unit control signal input end, the power contact that the 4th on SR1500-4 type radio transmitter finished product wireless closure signal is launched under keyswitch is connected by wire.

8. residential quarters according to claim 1 sewer biogas detecting devices, it is characterized in that wireless receiving mechanism radio receiving unit is by wireless receiving circuit, NPN triode, resistance and relay composition, wireless receiving circuit is the wireless receiving circuit finished product used that matches with SR1500-4 type radio transmitter finished product, 1 pin of wireless receiving circuit and relay cathode power supply input end, relay one normally opened contact end is connected by wire, 2 pin of wireless receiving circuit are connected by wire with resistance one end, the resistance other end is connected by wire with NPN transistor base, NPN transistor collector is connected by wire with relay negative power supply input end, 3 pin and the NPN transistor emitter of wireless receiving circuit pass through wired earth, when radio receiving unit is arranged on plastic casing inside, the receiving antenna of wireless receiving circuit is positioned at the upper end of plastic casing upper right rear portion perforate.

9. residential quarters according to claim 1 sewer biogas detecting devices, it is characterized in that wireless receiving mechanism warning circuit is by integrated alarm circuit, PNP triode, loudspeaker, resistance and light emitting diode composition, resistance has four, light emitting diode has four, integrated alarm circuit model is LC170, 3 pin of integrated alarm circuit are connected by wire with PNP triode emitter, 2 pin of integrated alarm circuit are connected by wire with PNP triode base stage, PNP triode collector is connected by wire with loudspeaker one end, 1 pin of integrated alarm circuit and the loudspeaker other end, the negative pole of four light emitting diodes passes through wired earth, four light emitting diode positive poles respectively with four resistance one end are connected by wire, when warning circuit is arranged on plastic casing inside, the front end of four light emitting diodes is positioned at four perforates of the anterior upper right side of plastic casing.