CN201274072Y - Electric facility approach prohibition net for safety - Google Patents
Electric facility approach prohibition net for safety Download PDFInfo
- Publication number
- CN201274072Y CN201274072Y CNU2008201526230U CN200820152623U CN201274072Y CN 201274072 Y CN201274072 Y CN 201274072Y CN U2008201526230 U CNU2008201526230 U CN U2008201526230U CN 200820152623 U CN200820152623 U CN 200820152623U CN 201274072 Y CN201274072 Y CN 201274072Y
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- voltage
- power supply
- relay
- electric power
- forbids
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Abstract
The utility model relates to an approaching forbidding net for electric power facility safety, which comprises a first and a second power supplies, a rectifying voltage-regulation module, a metal net and an alarm circuit, wherein, the input end of the rectifying voltage-regulation module is connected with the first power supply through a switch (K1), and one output end is connected with the input end of a high-voltage generator; another input end of the high-voltage generator is connected with the first power supply; one output end arranged at the high-voltage side of the high-voltage generator is earthed; one end of the metal net is connected with another output end arranged at the high-voltage side of the high-voltage generator, and the other end of the metal net is connected with a voltage divider; the output end of the voltage divider is connected with a current-limiting resistor and a triode base electrode; an emitter is connected with the second power supply and an earth wire; the collecting electrode of the triode is connected with a relay and the relay is connected with the second power supply; the alarm comprises a permanent closed contact and an alarm part; one end of the permanent closed contact is connected with the first power supply through the switch (K1); and the alarm part is connected with the first power supply. When the voltage drops because a high-voltage net is shortened to earth by plants, touched by thieves and contacted by animals, or is cut off, the resistor of the voltage divider approaching the ground end instantly loses voltage, the relay loses power, and thereby, the alarm circuit alarms.
Description
Technical field
The utility model relates to the electric power safety facility, and particularly electric power facility safety is forbidden near net.
Background technology
The protection question of equipment for power transmission and distribution such as electric power facility such as high-tension transformer, electric power netting twine is a major safety problems always.If use or protect improperly, can bring very big harm to human life's property.The people stands on the ground, can cause casualty accident when touching low voltage electric network and high-voltage fence.Particularly, unattended electric power facility often meets with destructions consciously or unconsciously such as burglar thief, animal, plant, in case take place often to lose huge.
Therefore people have used a lot of methods to manage, and strive safety utilization of electric power, but effect are still not very good.For example use electric leakage protector in electrical network, electrical network is electric leakage in a single day, and it trips to cut off the electricity supply with regard to command switch and protects personal safety.But it can't be reported to the police, and shows the position of accident point, influences staff's timely reparation.
Summary of the invention
The purpose of this utility model provides electric power facility safety forbids near net, when animal and plant near or contact the time can produce the electric numb effect of electric shock, can trigger warning circuit simultaneously and report to the police, prompting passerby and make an inspection tour the staff.When the burglar deliberately cuts off High-Voltage Network wiring, also can trigger warning circuit and report to the police.
For achieving the above object, the technical solution of the utility model is,
Electric power facility safety forbids that near net it comprises, first and second power supply; The rectifying and pressure-regulating module, its input end is connected with first power supply by a switch (K1), and its output terminal connects an input end of a high pressure generator, another input termination first power supply of high pressure generator, the on high-tension side output head grounding of high pressure generator; Wire netting, the one end connects on high-tension side another output terminal of high pressure generator, another termination voltage divider of wire netting; The voltage divider output terminal connects the base stage of a current-limiting resistance and a triode, and transistor emitter connects second source and ground wire, and the collector of triode connects a relay, another termination second source of relay; Warning circuit, it comprise one with the corresponding normal open switch of relay and the warning piece of connecting, normal open switch one end is connected with first power supply by connecting switch (K1), the warning piece other end connects first power supply.
Again, described first power supply is a uninterrupted power source, and second source is a stabilized voltage supply.
Described rectifying and pressure-regulating module comprises that some diodes are connected in series and corresponding by-pass cock.
Described warning piece comprises light emitting diode and hummer in parallel.
In addition, the utility model also comprises a voltage table, is parallel to two input ends of described high pressure generator.
The resistance (R1, R2) that described voltage divider comprises into series connection reaches and resistance (R2) voltage stabilizing diode in parallel, and wherein, resistance (R1, R2) tie point is the setting voltage sampled point.
Have again, establish the normally closed push button switch (K2) that usefulness is tested in a disconnected compacting between wire netting described in the utility model and the voltage divider.
The on high-tension side output terminal of described high pressure generator also connect establish effluve test usefulness often open button (K3), normally open push button switch (K3) other end ground connection.
When High-Voltage Network is touched by plant shorted to earth, burglar's hand, after the animal contact; When voltage descended, when perhaps being cut off by the people, the divider resistance sampled point of nearly earth terminal was lost voltage (9V is following) immediately, and relay can dead electricity return former (recovery normally off) like this, and the big sound of hummer, pilot lamp are bright at this moment.
The beneficial effects of the utility model
The utility model not only can be applied to unattended electric power facility, also can be applied to important departments such as bank, retail shop, gate inhibition.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
Referring to Fig. 1, the utility model electric power facility safety forbids that near net it comprises that first power supply 1, second source 2, the first power supplys 1 are uninterrupted power source, and second source 2 is a stabilized voltage supply; Rectifying and pressure-regulating module 3, it comprises that some diode D are connected in series and corresponding by-pass cock K4, its input end is connected with first power supply 1 by a K switch 1, its output terminal connects an input end of a high pressure generator 4, another input termination first power supply 1 of high pressure generator 4, high pressure generator 4 on high-tension side output head groundings; Wire netting 5, the one end connects high pressure generator 4 on high-tension side another output terminals, wire netting 5 another termination voltage dividers 6; Voltage divider 6 output terminals connect the base stage of a current-limiting resistance R3 and a triode BG, and transistor emitter connects second source 2 and ground wire, and the collector of triode BG connects a relay J, another termination second source 2 of relay; Warning circuit 7, it comprise one with the normally closed contact JK of the corresponding relay of relay J and a warning piece of connecting, normally closed contact one end of relay is connected with first power supply by connecting switch (K1), this warning piece comprises LED and hummer FM in parallel, and the warning piece other end connects first power supply 1.
The utility model also comprises a voltage table U, is parallel to two input ends of described high pressure generator 4.
Described voltage divider 6 comprises into resistance R 1, R2 and the voltage stabilizing diode ZD in parallel with resistance R 2 of series connection, and wherein, resistance R 1, R2 tie point A are the setting voltage sampled point.
Establish the normally closed push button switch K2 that usefulness is tested in a disconnected compacting between wire netting described in the utility model and the voltage divider.
Described high pressure generator 4 on high-tension side output terminals also connect the normally open push button switch K3 that establishes effluve test usefulness, and K switch 3 other end ground connection can be tested wire netting 5 effluves.。
When wire netting 5---High-Voltage Network is touched by plant shorted to earth, burglar's hand, after the animal contact, when voltage descends, when perhaps being cut off by the people, the voltage divider 6 resistance sampling points of nearly earth terminal are lost voltage (9V is following) immediately, so just make the relay J dead electricity, it is closed that the normally closed contact JK of corresponding warning circuit 7 repeat circuits recovers, and makes warning piece LED and hummer FM alert notice staff alarm set point position.
In addition, can do disconnected compacting by normally closed button K2 and test, press and promptly disconnect normally closed contact K2 and make voltage divider 6 dead electricity, impel triode BG to end, the relay J dead electricity, warning circuit 7 is reported to the police.
Claims (8)
1. electric power facility safety forbids it is characterized in that near net, comprises first and second power supply; The rectifying and pressure-regulating module, its input end is connected with first power positive end by a switch (K1), its output terminal connects an input end of a high pressure generator, an end of another input termination first power supply of high pressure generator, the on high-tension side output head grounding of high pressure generator; Wire netting, the one end connects on high-tension side another output terminal of high pressure generator, another termination voltage divider of wire netting; The voltage divider output terminal connects the base stage of a current-limiting resistance and a triode, and transistor emitter connects second source and ground wire, and the collector of triode connects a relay, another termination second source anode of relay; Warning circuit, it comprise one with the corresponding relay normally closed contact of relay and the warning piece of connecting, normally closed contact one end of relay is connected with first power positive end by connecting switch (K1), the warning piece other end connects first power supply, one end.
2. electric power facility safety as claimed in claim 1 forbids it is characterized in that near net that described first power supply is a uninterrupted power source, and second source is a stabilized voltage supply.
3. electric power facility safety as claimed in claim 1 forbids it is characterized in that near net that described rectifying and pressure-regulating module comprises that some diodes are connected in series and corresponding separated time by-pass cock.
4. electric power facility safety as claimed in claim 1 forbids it is characterized in that near net that described warning piece comprises light emitting diode and hummer in parallel.
5. electric power facility safety as claimed in claim 1 forbids it is characterized in that near net, also comprises a voltage table, is parallel to two input ends of described high pressure generator.
6. electric power facility safety as claimed in claim 1 is forbidden near net, it is characterized in that, the resistance (R1, R2) that described voltage divider comprises into series connection reaches and resistance (R2) voltage stabilizing diode in parallel, and wherein, resistance (R1, R2) tie point is the setting voltage sampled point.
7. electric power facility safety as claimed in claim 1 forbids it is characterized in that near net, establishes the pushbutton switch (K2) that usefulness is tested in a disconnected compacting between described wire netting and the voltage divider.
8. electric power facility safety as claimed in claim 1 forbids it is characterized in that near net that the on high-tension side output terminal of described high pressure generator also connects the normally open push button switch (K2) of establishing effluve test usefulness, switch (K2) other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201526230U CN201274072Y (en) | 2008-09-02 | 2008-09-02 | Electric facility approach prohibition net for safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201526230U CN201274072Y (en) | 2008-09-02 | 2008-09-02 | Electric facility approach prohibition net for safety |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201274072Y true CN201274072Y (en) | 2009-07-15 |
Family
ID=40884415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201526230U Expired - Fee Related CN201274072Y (en) | 2008-09-02 | 2008-09-02 | Electric facility approach prohibition net for safety |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201274072Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307296A (en) * | 2011-09-06 | 2012-01-04 | 天津汇讯视通科技有限公司 | Dome camera power voltage monitoring circuit and method thereof |
| CN101615781B (en) * | 2009-07-20 | 2012-05-09 | 嘉兴电力局 | Device for fast disconnecting high voltage testing source |
| CN106320219A (en) * | 2016-08-27 | 2017-01-11 | 国网山东省电力公司蓬莱市供电公司 | Guardrail for electric power construction |
| CN106320220A (en) * | 2016-08-27 | 2017-01-11 | 国网山东省电力公司蓬莱市供电公司 | Guardrail for electric power construction |
-
2008
- 2008-09-02 CN CNU2008201526230U patent/CN201274072Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615781B (en) * | 2009-07-20 | 2012-05-09 | 嘉兴电力局 | Device for fast disconnecting high voltage testing source |
| CN102307296A (en) * | 2011-09-06 | 2012-01-04 | 天津汇讯视通科技有限公司 | Dome camera power voltage monitoring circuit and method thereof |
| CN106320219A (en) * | 2016-08-27 | 2017-01-11 | 国网山东省电力公司蓬莱市供电公司 | Guardrail for electric power construction |
| CN106320220A (en) * | 2016-08-27 | 2017-01-11 | 国网山东省电力公司蓬莱市供电公司 | Guardrail for electric power construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20120902 |