CN102661081B - Safety fence for power maintenance site - Google Patents

Safety fence for power maintenance site Download PDF

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Publication number
CN102661081B
CN102661081B CN201210161436.XA CN201210161436A CN102661081B CN 102661081 B CN102661081 B CN 102661081B CN 201210161436 A CN201210161436 A CN 201210161436A CN 102661081 B CN102661081 B CN 102661081B
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China
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resistance
pin
power amplifier
positive pole
amplifier chip
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CN201210161436.XA
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CN102661081A (en
Inventor
王荣鸣
付勇
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Luzhou Power Bureau Of Sichuan Electric Power Co
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Luzhou Power Bureau Of Sichuan Electric Power Co
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Abstract

A kind of safety fence for power maintenance site, is spliced by multiple unit protective guard and forms fence, is provided with on a tactile switch of pressure or two unit protective guards and is separately installed with a magnetic clasp between two the unit protective guards contacted with each other.Fence disconnects warning circuit primarily of mu balanced circuit (adopting Zener diode voltage stabilizing), transistor switching circuit, power amplifier, warning circuit composition.After protective guard place magnetic clasp arbitrary in fence or pressure touch switch disconnection, transistor switching circuit disconnects, and alarm sends chimes of doom.The present invention effectively can prevent the act of violating regulations of crossing over safety barrier, has simple and practical, can ensure the feature of construction safety.

Description

Safety fence for power maintenance site
Technical field
The present invention relates to construction safety guide rail, especially for power equipment maintaining construction, the protective guard with warning function.
Background technology
Existing protective guard is one of important means ensureing job site safety, and there is soft and hard fence on traditional defense hurdle, and no matter have Buddhist nun's suede material, ABS material, stainless steel etc., be soft or hard fence, all without acousto-optic prompt functions.In real work, owing to scheming conveniently, usually there is the act of violating regulations of crossing over safe fence in staff, and time has, because crossing over safe fence mistakenly entering into charged equipment, the dangerous accident of personal injury occurs, and therefore, existing protective guard still exists potential safety hazard when practice of construction.
Summary of the invention
The object of this invention is to provide the safety fence for power maintenance site namely occurring after a kind of fence disconnects to report to the police.
The object of the present invention is achieved like this: a kind of safety fence for power maintenance site, comprise and form fence by multiple unit protective guard splicing, be provided with between two the unit protective guards contacted with each other on a tactile switch of pressure or two unit protective guards and be separately installed with a magnetic clasp; Also there is fence and disconnect warning circuit: be connected to voltage-stabiliser tube D1 negative pole after 12V battery BT1 cathode series resistance R6, electric capacity C2 is in parallel with battery BT1, and electrochemical capacitor C1 positive pole is connected to battery BT1 positive pole, and electrochemical capacitor C1 negative pole is connected to battery BT1 negative pole;
Resistance R7 mono-termination battery BT1 positive pole, another termination compound transistor of resistance R7 Q1 base stage, compound transistor Q1 colelctor electrode connects voltage-stabiliser tube D1 positive pole, compound transistor Q1 grounded emitter, an above-mentioned magnetic clasp connects compound transistor Q1 base stage, another magnetic clasp ground connection, or above-mentioned pressure touches switch one termination compound transistor Q1 base stage, other end ground connection, the 1 pin series resistor R1 in turn of power amplifier chip U1, voltage-stabiliser tube D1 positive pole is connect after resistance R3, resistance R2 mono-termination battery BT1 positive pole, the other end is connected to the node of resistance R1 and resistance R3, electrochemical capacitor C3 positive pole is connected to the node of resistance R1 and resistance R3, electrochemical capacitor C3 negative pole connects 3 pin and the voltage-stabiliser tube D1 positive pole of power amplifier chip U1 simultaneously, electrochemical capacitor C5 positive pole is connected to after the 2 pin series resistor R4 of power amplifier chip U1, electrochemical capacitor C5 negative pole is connected to loudspeaker TS1 one end, the loudspeaker TS1 other end is connected to 3 pin of power amplifier chip U1, 4 pin of power amplifier chip U1 connect electrochemical capacitor C5 positive pole, resistance R5 mono-end is connected to 2 pin of power amplifier chip U1, the other end is connected to the node of resistance R1 and resistance R3, 5 pin of power amplifier chip U1 connect battery BT1 positive pole.
Also have voice warning circuit: 1 pin of speech chip U2 is connected to voltage-stabiliser tube D1 negative pole, 2 pin of speech chip U2 are connected to 3 pin of power amplifier chip U1, are connected to 1 pin of power amplifier chip U1 after the 3 pin serial capacitance C4 of speech chip U2.
The model of above-mentioned power amplifier chip U1 is TDA3020A, and the model of speech chip U2 is MIC, and the model of compound transistor Q1 is TIP122, and voltage-stabiliser tube D1 is 3.3V voltage-stabiliser tube.
The present invention has following characteristics:
1, transistor switching circuit disconnects, and alarm sends " warns, warns, No striding safe fence when a protective guard magnetic clasp any in fence or after pressing tactile switch to disconnect! " sound.
2, after the magnetic clasp disconnected or the tactile switch of pressure connect again, circuit closed, alarm audible closure.
3, alarm adopts 12V storage battery power supply, and in standby, whole loop only has very little current drain, so stand-by time can reach half a year.
If 4 alarms are in the state of warning sounding for a long time, battery theoretical value normal working hours: 70 hours.
5, alarm battery adopts the charging of 12V Switching Power Supply.
This fence can be prevented and cross over the act of violating regulations of safe fence, lower for job site Migrant women quality especially, the situation that awareness of safety is poor, and effect is more obvious, ensure that site safety produces controlled, controlling and can controlling, improve safety work level.
Accompanying drawing explanation
Fig. 1 is structure chart of the present invention.
Fig. 2 is that alarm shown in Fig. 1 and fence disconnect warning circuit figure.
Detailed description of the invention
Safety fence is spliced by multiple unit protective guard and forms, and is provided with on a tactile switch of pressure or two unit protective guards and is separately installed with a magnetic clasp between two the unit protective guards contacted with each other; Also there is fence and disconnect warning circuit: be connected to voltage-stabiliser tube D1 negative pole after 12V battery BT1 cathode series resistance R6, electric capacity C2 is in parallel with battery BT1, and electrochemical capacitor C1 positive pole is connected to battery BT1 positive pole, and electrochemical capacitor C1 negative pole is connected to battery BT1 negative pole;
Resistance R7 mono-termination battery BT1 positive pole, another termination compound transistor of resistance R7 Q1 base stage, compound transistor Q1 colelctor electrode connects voltage-stabiliser tube D1 positive pole, compound transistor Q1 grounded emitter, an above-mentioned magnetic clasp connects compound transistor Q1 base stage, another magnetic clasp ground connection, or above-mentioned pressure touches switch one termination compound transistor Q1 base stage, other end ground connection, the 1 pin series resistor R1 in turn of power amplifier chip U1, voltage-stabiliser tube D1 positive pole is connect after resistance R3, resistance R2 mono-termination battery BT1 positive pole, the other end is connected to the node of resistance R1 and resistance R3, electrochemical capacitor C3 positive pole is connected to the node of resistance R1 and resistance R3, electrochemical capacitor C3 negative pole connects 3 pin and the voltage-stabiliser tube D1 positive pole of power amplifier chip U1 simultaneously, electrochemical capacitor C5 positive pole is connected to after the 2 pin series resistor R4 of power amplifier chip U1, electrochemical capacitor C5 negative pole is connected to loudspeaker TS1 one end, the loudspeaker TS1 other end is connected to 3 pin of power amplifier chip U1, 4 pin of power amplifier chip U1 connect electrochemical capacitor C5 positive pole, resistance R5 mono-end is connected to 2 pin of power amplifier chip U1, the other end is connected to the node of resistance R1 and resistance R3, 5 pin of power amplifier chip U1 connect battery BT1 positive pole (has pressure to touch switch S 1 in Fig. 2, see Fig. 1, Fig. 2).In voice warning circuit: 1 pin of speech chip U2 is connected to voltage-stabiliser tube D1 negative pole, 2 pin of speech chip U2 are connected to 3 pin of power amplifier chip U1, are connected to 1 pin of power amplifier chip U1 after the 3 pin serial capacitance C4 of speech chip U2.The model of power amplifier chip U1 is TDA3020A, and the model of speech chip U2 is MIC, and the model of compound transistor Q1 is TIP122, and voltage-stabiliser tube D1 is 3.3V voltage-stabiliser tube.
In Fig. 2, alarm is by mu balanced circuit (adopting Zener diode voltage stabilizing), transistor switching circuit, power amplifier, warning circuit (being made up of speech chip and loudspeaker etc.).

Claims (3)

1. a safety fence for power maintenance site, comprises, and is spliced and forms fence, it is characterized in that by multiple unit protective guard, is provided with on a tactile switch of pressure or two unit protective guards and is separately installed with a magnetic clasp between two the unit protective guards contacted with each other; Also there is fence and disconnect warning circuit: be connected to voltage-stabiliser tube D1 negative pole after 12V battery BT1 cathode series resistance R6, electric capacity C2 is in parallel with battery BT1, and electrochemical capacitor C1 positive pole is connected to battery BT1 positive pole, and electrochemical capacitor C1 negative pole is connected to battery BT1 negative pole;
Resistance R7 mono-termination battery BT1 positive pole, another termination compound transistor of resistance R7 Q1 base stage, compound transistor Q1 colelctor electrode connects voltage-stabiliser tube D1 positive pole, compound transistor Q1 grounded emitter, an above-mentioned magnetic clasp connects compound transistor Q1 base stage, another magnetic clasp ground connection, or above-mentioned pressure touches switch one termination compound transistor Q1 base stage, other end ground connection, the 1 pin series resistor R1 in turn of power amplifier chip U1, voltage-stabiliser tube D1 positive pole is connect after resistance R3, resistance R2 mono-termination battery BT1 positive pole, the other end is connected to the node of resistance R1 and resistance R3, electrochemical capacitor C3 positive pole is connected to the node of resistance R1 and resistance R3, electrochemical capacitor C3 negative pole connects 3 pin and the voltage-stabiliser tube D1 positive pole of power amplifier chip U1 simultaneously, electrochemical capacitor C5 positive pole is connected to after the 2 pin series resistor R4 of power amplifier chip U1, electrochemical capacitor C5 negative pole is connected to loudspeaker TS1 one end, the loudspeaker TS1 other end is connected to 3 pin of power amplifier chip U1, 4 pin of power amplifier chip U1 connect electrochemical capacitor C5 positive pole, resistance R5 mono-end is connected to 2 pin of power amplifier chip U1, the other end is connected to the node of resistance R1 and resistance R3, 5 pin of power amplifier chip U1 connect battery BT1 positive pole.
2. safety fence for power maintenance site according to claim 1, it is characterized in that, also there is voice warning circuit: 1 pin of speech chip U2 is connected to voltage-stabiliser tube D1 negative pole, 2 pin of speech chip U2 are connected to 3 pin of power amplifier chip U1, are connected to 1 pin of power amplifier chip U1 after the 3 pin serial capacitance C4 of speech chip U2.
3. safety fence for power maintenance site according to claim 1, is characterized in that, the model of described power amplifier chip U1 is TDA3020A, and the model of speech chip U2 is MIC, and the model of compound transistor Q1 is TIP122, and voltage-stabiliser tube D1 is 3.3V voltage-stabiliser tube.
CN201210161436.XA 2012-05-23 2012-05-23 Safety fence for power maintenance site Active CN102661081B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN102661081B true CN102661081B (en) 2016-02-10

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113775194A (en) * 2021-08-06 2021-12-10 上海建工一建集团有限公司 Monitoring circuit and intelligent guardrail pole setting
CN113689644A (en) * 2021-09-05 2021-11-23 骆金山 Micro-current safety electronic fence

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2055276U (en) * 1989-10-12 1990-03-28 何军 Pre-alarm preventing infants roll-off during sleeping
DE4130775A1 (en) * 1990-12-10 1992-06-11 Torrington Prod Ventures ELECTRONIC ARRANGEMENT FOR BOARDING ANIMALS IN CERTAIN AREAS
CN1787023A (en) * 2004-12-09 2006-06-14 广州南方电力集团科技发展有限公司 Electronci alarming guard for separating dangerous area
CN201638349U (en) * 2009-12-14 2010-11-17 河南索凌电气有限公司 Human body induction alarm device of high-voltage isolation area
CN201670110U (en) * 2010-05-12 2010-12-15 陈清尧 Drunk driving alarm controller
CN201829024U (en) * 2010-10-27 2011-05-11 河南省电力公司商丘供电公司 Safety warning device for maintenance state of high-voltage switch
CN201838136U (en) * 2010-08-11 2011-05-18 孙耀敏 Doll with electric eyes
CN201972452U (en) * 2010-12-14 2011-09-14 新安县电业公司 Stainless steel warning fence with voice warning device
CN202627637U (en) * 2012-05-23 2012-12-26 四川省电力公司泸州电业局 Safety fence for electric power maintenance site

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2055276U (en) * 1989-10-12 1990-03-28 何军 Pre-alarm preventing infants roll-off during sleeping
DE4130775A1 (en) * 1990-12-10 1992-06-11 Torrington Prod Ventures ELECTRONIC ARRANGEMENT FOR BOARDING ANIMALS IN CERTAIN AREAS
CN1787023A (en) * 2004-12-09 2006-06-14 广州南方电力集团科技发展有限公司 Electronci alarming guard for separating dangerous area
CN201638349U (en) * 2009-12-14 2010-11-17 河南索凌电气有限公司 Human body induction alarm device of high-voltage isolation area
CN201670110U (en) * 2010-05-12 2010-12-15 陈清尧 Drunk driving alarm controller
CN201838136U (en) * 2010-08-11 2011-05-18 孙耀敏 Doll with electric eyes
CN201829024U (en) * 2010-10-27 2011-05-11 河南省电力公司商丘供电公司 Safety warning device for maintenance state of high-voltage switch
CN201972452U (en) * 2010-12-14 2011-09-14 新安县电业公司 Stainless steel warning fence with voice warning device
CN202627637U (en) * 2012-05-23 2012-12-26 四川省电力公司泸州电业局 Safety fence for electric power maintenance site

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