CN209707945U - A kind of circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type - Google Patents
A kind of circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type Download PDFInfo
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- CN209707945U CN209707945U CN201920671905.XU CN201920671905U CN209707945U CN 209707945 U CN209707945 U CN 209707945U CN 201920671905 U CN201920671905 U CN 201920671905U CN 209707945 U CN209707945 U CN 209707945U
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- gas
- receiving unit
- wireless transmission
- trigger
- meter
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Abstract
The utility model relates to a kind of circuit structures of the gas safe emergency treatment device of gas meter, flow meter control type, belong to the gas safe emergency treatment device technical field of gas meter, flow meter control type.The device includes wireless transmission and receiving unit, JK-type trigger, triode, first resistor, second resistance, switch, single-pole double-throw switch (SPDT) and key switch；The utility model is the characteristics of valve is closed in the case where internal battery supply powers off using gas meter, flow meter, uses and adds the switching circuit being made of triode by trigger to control the method that its internal cell electric power loop is cut-off to control the folding of intelligent gas meter internal valves.The research and development of the utility model are at low cost, easy to spread, can farthest reduce Loss of Life and property caused by due to gas leakage emergency event.
Description
Technical field
The utility model relates to a kind of circuit structures of the gas safe emergency treatment device of gas meter, flow meter control type, belong to combustion
The gas safe emergency treatment device technical field of gas meter control type.
Background technique
Gas safe emergent treatment system is intended to detect by gas concentration, dangerous concentrations assessment, to gas safe thing
Therefore take timely emergency trouble shooting measures.With the development of society, the raising of national life level, pipe gas is in resident family
Popularity it is growing day by day, on the one hand greatly facilitated life convenience, on the other hand also because resident's combustion gas use
Improper, gas pipeline aging and so on and occur more gas safe accident in China, seriously injure
The security of the lives and property of resident, also limits the development of pipe gas industry to a certain extent.
Current country's gas safe prevention mainly uses two methods: first is that gas company periodically sends maintenance personnel to enter
It visits in resident family and checks gas-fired equipment and gas pipeline situation, this is also currently one of most important method, but this side
Method efficiency is too low, inspects periodically the workload for both increasing maintenance personnel, and the neutral gear phase between inspection is also easy hair twice
Raw safety accident.Second is that gas safe intelligent monitor system is installed at home, though this method compares first method more intelligence
Energyization, but because it generally requires to reequip the table late gate of gas pipeline, the interface quantity of table late gate is increased, is easy
There is security risk.
Existing gas safe intelligent monitor system, if the additional control increased in terms of emergency processing, control module
The folding condition in pipe gas channel is usually controlled by special burnt gas valve.It collects domestic gas and detects, alarms, comments
Estimate and control function be in one, can gas concentration in real-time detection man, and can be controlled when gas concentration is higher than preset value
Control dedicated burnt gas valve closure.But this method that gas pipeline on-off is controlled by controlling dedicated burnt gas valve exists
Defect, still remain because special valve interface loosens, valve closes the problems such as bad caused by the reasons such as using, installing.Secondly,
Special valve is installed after gas meter, flow meter, increases interface quantity, therefore also increase security risk.
In addition, installing special valve after intelligent gas meter also increases the complexity of gas pipeline, equally also have
There is some potential safety problems, in addition, the deisgn product is usually to be installed after table privately by user, non-combustion gas company standardization system
One installation, security risk is larger, Difficulty.
Utility model content
The purpose of this utility model is that reducing the unnecessary interface quantity in gas pipeline, reach safe and reliable, fast
Fast, succinct purpose reaches the break-make situation of control gas pipeline, to provide one kind under conditions of not installing special valve
The circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type, to achieve the purpose that control gas pipeline on-off.
The utility model to achieve the goals above, adopts the following technical scheme that
A kind of circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type, the device include wireless transmission and
Receiving unit, JK-type trigger, triode, first resistor, second resistance, switch, single-pole double-throw switch (SPDT) and key switch；
The VCC of the end GND of wireless transmission and receiving unit ground connection, wireless transmission and receiving unit terminates constant voltage；
The end VCC and the end GND of wireless transmission and receiving unit draw a line respectively and connect the touching of JK type through single-pole double-throw switch (SPDT)
Send out the end J of device；
The end CP of wireless transmission and receiving unit connects the end CLK of JK-type trigger through switching；
The end VCC of wireless transmission and receiving unit is through key switch and first resistor series connection ground connection；Key switch and resistance
Between circuit hand over switch trigger between circuit play the role of manual reset in O point.
The base stage of the Q termination triode of JK-type trigger；
Power ground of the emitter of triode through intelligent gas meter；
The collector of triode connects the power-supply system of intelligent gas meter through second resistance.
Further, the VCC of wireless transmission and receiving unit terminates constant voltage are as follows: the constant voltage of+5V.
Further, JK-type trigger is 74LS113 type JK trigger.
The beneficial effects of the utility model are as follows:
The utility model is the characteristics of valve is closed in the case where internal battery supply powers off using gas meter, flow meter, using logical
It crosses trigger and adds the switching circuit being made of triode to control method that its internal cell electric power loop is cut-off to control intelligence
The folding of gas meter, flow meter internal valves.The research and development of the utility model are at low cost, easy to spread, can farthest reduce because combustion gas is let out
Leak emergency event and caused by Loss of Life and property.
Detailed description of the invention
Fig. 1 is the electrical block diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of technical solution:
A kind of circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type, the device include wireless transmission and
Receiving unit 1, triode 3, first resistor 5.1, second resistance 5.2, switch 6, single-pole double-throw switch (SPDT) 7, is pressed at JK-type trigger 2
Key switch 8；
The VCC of the end GND of wireless transmission and receiving unit 1 ground connection, wireless transmission and receiving unit 1 terminates constant voltage；
The end VCC and the end GND of wireless transmission and receiving unit 1 draw a line respectively and connect JK type through single-pole double-throw switch (SPDT) 7
The end J of trigger 2；
The end CP of wireless transmission and receiving unit 1 connects the end CLK of JK-type trigger 2 through switch 6；
The end VCC of wireless transmission and receiving unit 1 is through key switch 8 and the series connection ground connection of first resistor 5.1；
The base stage of the Q termination triode 3 of JK-type trigger 2；
The emitter of triode 3 is grounded through the power supply 9 of intelligent gas meter；
The collector of triode 3 connects the power-supply system 10 of intelligent gas meter through second resistance 5.2.
The VCC of wireless transmission and receiving unit 1 terminates constant voltage are as follows: the constant voltage of+5V.JK-type trigger 2 is
74LS113 type JK trigger.
Utility model is controlled in intelligent gas meter by the break-make situation in the power supply power supply circuit in control power module
Portion's valve is cut-off, when wireless receiving component receives the nothing issued by the wireless transmission component of methane concentration detection alarm module
When line control signal, the end CP of wireless receiving component exports continuous potential pulse and acts on 74LS113(JK trigger)
The end CLK, simultaneously when 74LS113(JK trigger) single-pole double-throw switch (SPDT) outside the end J connects by wireless receiving component
The end GND draw conducting wire when, 74LS113(JK trigger) the port Q can export lasting low level, therefore three poles
The base stage of pipe is equivalent to open circuit in transmitting interpolar in voltage Vbe < 0.7V of transmitting interpolar, collector, and no current passes through, thus
The exciting current on electromagnetic coil in gas meter, flow meter is 0, and magnetic piston is released, and is closed under the action of the spring, to reach
Close the effect of blast tube.
After people have excluded dangerous situation, single-pole double-throw switch (SPDT) is pushed to the conducting wire drawn by the end Vcc in wireless receiving component
When, then the switch between CP and CLK is disconnected, pressing the button switch later can carry out answering gas meter, flow meter power module
Position, i.e., so that 74LS113(JK trigger) the end Q export high potential again, the voltage Vbe of base stage and transmitting interpolar >
The power circuit of 0.7V, gas meter, flow meter are connected, and exciting current occur on the electromagnetic coil in gas meter, flow meter, magnetism is sucked in electromagnetic coil
Piston, to open blast tube.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type, it is characterised in that: the device includes
Wireless transmission and receiving unit (1), triode (3), first resistor (5.1), second resistance (5.2), are opened JK-type trigger (2)
Close (6), single-pole double-throw switch (SPDT) (7), key switch (8)；
The VCC of the end GND of wireless transmission and receiving unit (1) ground connection, wireless transmission and receiving unit (1) terminates constant voltage；
The end VCC and the end GND of wireless transmission and receiving unit (1) draw a line respectively and connect JK type through single-pole double-throw switch (SPDT) (7)
The end J of trigger (2)；
The end CP of wireless transmission and receiving unit (1) is switched the end CLK that (6) connect JK-type trigger (2)；
The end VCC of wireless transmission and receiving unit (1) is through key switch (8) and first resistor (5.1) series connection ground connection；
The base stage of Q termination triode (3) of JK-type trigger (2)；
Power supply (9) ground connection of the emitter of triode (3) through intelligent gas meter；
The collector of triode (3) connects the power-supply system (10) of intelligent gas meter through second resistance (5.2).
2. the circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type according to claim 1, feature
Be: the VCC of wireless transmission and receiving unit (1) terminates constant voltage are as follows: the constant voltage of+5V.
3. the circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type according to claim 1, feature
Be: JK-type trigger (2) is 74LS113 type JK trigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920671905.XU CN209707945U (en) | 2019-05-13 | 2019-05-13 | A kind of circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920671905.XU CN209707945U (en) | 2019-05-13 | 2019-05-13 | A kind of circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209707945U true CN209707945U (en) | 2019-11-29 |
Family
ID=68649472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920671905.XU Expired - Fee Related CN209707945U (en) | 2019-05-13 | 2019-05-13 | A kind of circuit structure of the gas safe emergency treatment device of gas meter, flow meter control type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209707945U (en) |
-
2019
- 2019-05-13 CN CN201920671905.XU patent/CN209707945U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191129 Termination date: 20200513 |