Early warning device for preventing external damage of high-voltage transmission line

Abstract

The utility model discloses a high voltage transmission line anti-external damage early warning device, comprising a power supply unit, a high voltage induction unit, an alarm unit, a signal emission unit and a signal reception alarm unit, the power supply unit is connected with the high voltage induction unit, the output end of the high voltage induction unit is connected with the power supply end of the alarm unit, the power supply end of the signal emission unit and an alarm lamp; the output end of the alarm unit is connected with the loudspeaker, and the signal transmitting unit is in radio connection with the signal receiving alarm unit. The utility model has the advantages of reasonable design, simple structure and easy manufacture. Through cooperative work of the high-voltage induction unit, the alarm unit, the signal transmitting unit and the signal receiving alarm unit, the functions of detecting whether high-voltage electrical equipment is electrified or not, giving an alarm on site and giving a wireless remote alarm are achieved, and when construction equipment continuously gets close to the high-voltage electrical equipment, the warning device can improve the warning tone step by step, and the warning effect is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a near electric prewarning system, concretely relates to a high -tension transmission line prevents external damage early warning device. BACKGROUND

[0002] During the operation of large mechanical equipment (such as crane, pump truck, excavator etc.) in the protection area of transmission line, the operating personnel and the commander often neglect the safety distance of the line, so that when the equipment exceeds the safety distance from the wire, discharge occurs, causing the power grid accidents such as wire breakage and tower collapse. At the same time, the construction mechanical equipment is damaged, and even personal injury accidents occur. SUMMARY

[0003] The utility model discloses to the defects in the prior art, provide a high -tension transmission line prevents external damage early warning device.

[0004] Its technical scheme is: high -tension transmission line prevents external damage early warning device, including power supply unit, high -voltage induction unit, alarm unit, signal transmitting unit and signal receiving alarm unit, power supply unit connects high -voltage induction unit, high -voltage induction unit output end connects the power end of alarm unit, the power end of signal transmitting unit and warning light, the output end of alarm unit connects loudspeaker, signal transmitting unit passes through radio connection signal receiving alarm unit;High -voltage induction unit, alarm unit, signal transmitting unit and loudspeaker are installed in an insulating shell, and the warning light is arranged on the lateral surface of the insulating shell, and the insulating shell is fixedly installed at the top end of the boom or the high end of other equipment, and the signal receiving alarm unit is the wireless receiving module with audible and visual warning function of staff mobile phone or installation in the operating room.

[0005] Further, the high-voltage induction unit includes a near-electricity warning core, a 1-pin of the near-electricity warning core is connected to one end of a first resistor, one end of a first capacitor, and an antenna, a 2-pin of the near-electricity warning core is connected to the other end of the first resistor, one end of a second capacitor, and one end of a second resistor, a 3-pin of the near-electricity warning core is connected to one end of a crystal oscillator and one end of a third capacitor, a 3-pin of the near-electricity warning core is connected to the other end of the crystal oscillator and one end of a fourth capacitor, a 6-pin of the near-electricity warning core is connected to the base of a triode through a third resistor, the collector of the triode is connected to one end of a relay, the other end of the relay is connected to an 8-pin of the near-electricity warning core, one end of a relay normally open contact, and a positive output end of the power supply unit; a 5-pin of the near-electricity warning core is connected to the emitter of the triode, the other end of the fourth capacitor, the other end of the third capacitor, the other end of the second resistor, the other end of the first capacitor, the other end of the second capacitor, and a negative output end of the power supply unit; the other end of the relay normally open contact is the output end of the high-voltage induction unit.

[0006] Further, the alarm unit comprises a siren chip, a time relay, a resistor and an amplification circuit, the output end of the high-voltage induction unit is connected with the power positive end of the siren chip, the power positive end of the amplification circuit, the power positive end of the first time relay and one end of the first normally open contact of the first time relay, the other end of the first normally open contact of the first time relay is connected with the power positive end of the second time relay, the negative output end of the power supply unit is connected with the power negative end of the siren chip, the power negative end of the amplification circuit, the power negative end of the first time relay and the power negative end of the second time relay; the first tone control end of the siren chip is connected with one end of the fourth resistor, the other end of the fourth resistor is connected with one end of the first normally open contact of the second time relay and one end of the fifth resistor, the other end of the fifth resistor is connected with one end of the sixth resistor, the other end of the first normally open contact of the second time relay and one end of the second normally open contact of the second time relay, the other end of the second normally open contact of the second time relay is connected with the other end of the sixth resistor and the second tone control end of the siren chip; the first time relay and the second time relay are both contact closed after 2-10 seconds of power-on delay; the resistance values of the fourth resistor, the fifth resistor and the sixth resistor are all 100K; the output end of the siren chip is connected with the loudspeaker through the amplification circuit.

[0007] Further, the model of the electric early warning core is JW0818.

[0008] Further, the siren chip is a siren police music chip or a human voice warning sound chip.

[0009] Further, the power supply unit comprises a storage battery with a charge and discharge control circuit and a switch, and the positive end of the storage battery is connected with the switch in series.

[0010] Compared with the prior art, the utility model has the advantages of reasonable design, simple structure and easy manufacturing, the magnet is arranged, the cylindrical or rectangular shell is connected with the iron load, the high-voltage induction unit, the alarm unit, the signal transmitting unit and the signal receiving alarm unit are cooperated to realize the functions of detecting whether the high-voltage electrical equipment is electrified, on-site alarm and wireless remote alarm, and the utility model can gradually increase the reminding tone when the construction equipment continuously approaches the high-voltage electrical equipment, thereby enhancing the reminding effect. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structure circuit diagram of one embodiment of the utility model. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described in the following in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0013] Referring to Figure 1 A high-voltage transmission line external damage early warning device, including power supply unit 1, high-voltage induction unit 2, alarm unit 3, signal transmitting unit 4 and signal receiving alarm unit 5, power supply unit 1 connects high-voltage induction unit 2, the output end of high-voltage induction unit 2 connects the power end of alarm unit 3, the power end of signal transmitting unit 4 and warning light 6, the output end of alarm unit 3 connects loudspeaker 7, signal transmitting unit 4 is connected through wireless radio 8 signal receiving alarm unit 5;High-voltage induction unit 2, alarm unit 3, signal transmitting unit 4 and loudspeaker 7 are installed in an insulating shell (not shown in the drawing), warning light 6 is arranged on the lateral surface of the insulating shell, and the insulating shell is fixedly installed at the top end of the boom or the high end of other equipment, and the signal receiving alarm unit 5 is a wireless receiving module with sound and light warning function installed in the operating room or the mobile phone of the staff.

[0014] The high-voltage induction unit 2 includes a near-electricity early warning chip IC1, the 1 pin of the near-electricity early warning chip IC1 is connected with one end of the first resistor R1, one end of the first capacitor C1 and the antenna TX, the 2 pin of the near-electricity early warning chip IC1 is connected with the other end of the first resistor R1, one end of the second capacitor C2 and one end of the second resistor R2, the 3 pin of the near-electricity early warning chip IC1 is connected with one end of the crystal oscillator Z and one end of the third capacitor C3, the 3 pin of the near-electricity early warning chip IC1 is connected with the other end of the crystal oscillator Z and one end of the fourth capacitor C4, the 6 pin of the near-electricity early warning chip IC1 is connected with the base of the triode T through the third resistor R3, the collector of the triode T is connected with one end of the relay J, the other end of the relay J is connected with the 8 pin of the near-electricity early warning chip IC1, one end of the relay normally open contact J1 and the positive output end of the power supply unit 1;The 5 pin of the near-electricity early warning chip IC1 is connected with the emitter of the triode T, the other end of the fourth capacitor C4, the other end of the third capacitor C3, the other end of the second resistor R2, the other end of the first capacitor C1, the other end of the second capacitor C2 and the negative output end of the power supply unit 1;The other end of the relay normally open contact J1 is the output end of the high-voltage induction unit 2.

[0015] The alarm unit comprises a warning sound chip, a time relay, a resistor and an amplification circuit, the output end of the high-voltage sensing unit 2 is connected with the power positive end of the warning sound chip IC2, the power positive end of the amplification circuit FD, the power positive end of the first time relay SJ1 and one end of the first time relay first normally open contact SJ1-1, the other end of the first time relay first normally open contact SJ1-1 is connected with the power positive end of the second time relay SJ2, the negative output end of the power supply unit 1 is connected with the power negative end of the warning sound chip IC2, the power negative end of the amplification circuit FD, the power negative end of the first time relay SJ1 and the power negative end of the second time relay SJ2; the first tone control end of the warning sound chip IC2 is connected with one end of the fourth resistor R4, the other end of the fourth resistor R4 is connected with one end of the first time relay second normally open contact SJ1-2 and one end of the fifth resistor R5, the other end of the fifth resistor R5 is connected with one end of the sixth resistor R6, the other end of the first time relay second normally open contact SJ1-2 and one end of the second time relay normally open contact SJ2-1, the other end of the second time relay normally open contact SJ2-1 is connected with the other end of the sixth resistor R6 and the second tone control end of the warning sound chip IC2; the first time relay SJ1 and the second time relay SJ2 are both power-on delay type and the contacts are closed after 2-10 seconds; the resistance values of the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6 are all 50-200K; the output end of the warning sound chip IC2 is connected with the loudspeaker 7 through the amplification circuit FD; the type of the electric pre-warning core is JW0818; the resistance value of the first resistor R1 is 20MΩ, the resistance value of the second resistor R2 is 300KΩ, the resistance value of the third resistor R3 is 4.7KΩ, the capacitance of the first capacitor C1 is 560p, the capacitance of the second capacitor C2 is 0.01μ, the capacitances of the third capacitor C3 and the fourth capacitor C4 are both 100p, and the type of the triode T is 9014 or 8050.

[0016] The warning sound chip IC2 is a siren police music chip or a human voice warning sound chip, such as a voice broadcast chip with the type of CX588.

[0017] The power supply unit comprises a storage battery DC with a charge-discharge control circuit (not shown in the figure) and a switch K, and the positive end of the storage battery DC is connected with the switch K in series.

[0018] The charge-discharge control circuit storage battery DC, the switch K, the first time relay SJ1, the second time relay SJ2, the electric pre-warning core IC1, the warning sound chip IC2, the amplification circuit FD, the GPRS alarm module and the GSM mobile phone module in the utility model are all mature products in the prior art, and can be directly purchased.

[0019] Working principle: turn on the switch K, the electric pre-warning chip IC1 first self-check, its 6 feet output high level, the triode T is turned on and the relay J is actuated, J1 is closed, the alarm sound chip IC2 gets electricity through the amplification circuit FD and drives the loudspeaker 7 to sound, meanwhile the warning light 6 flashes, which shows that the work is normal;After the self-check is completed, the electric pre-warning chip IC1 enters the pre-warning state, the 6 feet output of the alarm sound chip IC2 is low in ordinary times, the triode T and the relay J are all not worked. When the antenna TX of the electric pre-warning chip IC1 approaches the live line or equipment, the relay J is actuated, J1 is closed, the alarm sound chip IC2 gets electricity through the amplification circuit FD and drives the loudspeaker 7 to sound, the warning light 6 flashes, meanwhile the signal transmitting unit 4 sends the alarm signal, the signal receiving alarm unit 5 reminds the staff to pay attention. The first time relay SJ1 gets electricity and starts timing while continuously approaching the live line or equipment, the first time relay SJ1 timing time arrives, the two normally open contacts of the first time relay SJ1 are all closed, wherein the first time relay first normally open contact SJ1-1 connects the power supply of the second time relay SJ2, the second time relay SJ2 starts timing, the first time relay second normally open contact SJ1-2 is closed, short-circuits the fifth resistance R5, at this time, the oscillation resistance between the first tone control end and the second tone control end of the alarm sound chip IC2 reduces, from the original fourth resistance R4+ fifth resistance R5+ sixth resistance R6, changes to fourth resistance R4+ sixth resistance R6, the output tone of the alarm sound chip IC2 is changed to be high, through the amplification circuit FD drives the loudspeaker 7 to send higher tone warning sound or warning words. If the utility model still continuously approaches the live line or equipment, the timing of the second time relay SJ2 reaches, the second time relay normally open contact SJ2-1 is also closed, the resistance of the oscillation resistance is reduced again, changes to only the resistance of the fourth resistance R4, the output tone of the alarm sound chip IC2 is changed to be high again, to gradually strengthen the strength of reminding the staff to pay attention.

[0020] When in use, the utility model is installed in an insulating shell (not shown in the drawing), the warning light 6 is arranged on the lateral surface of the insulating shell, the insulating shell side is provided with a strong magnet, which is fixedly installed on the top end of a boom or the high end of other equipment through the strong magnet, the signal receiving alarm unit 5 is a staff mobile phone or a wireless receiving module with sound and light warning function installed in an operation room, which is used for receiving the alarm signal.

[0021] The utility model discloses reasonable in design, simple structure, easy production, through setting up magnet, it is convenient cylindrical or rectangular shell and iron load connection. Through the cooperation of high pressure induction unit, alarm unit, signal transmitting unit and signal receiving alarm unit, realize the function of detecting whether high voltage electrical equipment is electrified, and the near electric field alarm and wireless remote alarm function of high voltage transmission line nearby mechanical construction, when continuously approaching high voltage electrical equipment, the utility model can improve the reminding tone gradually, and the reminding effect is enhanced. Therefore, using the present application can eliminate the safety hidden trouble of high and big mechanical construction operation near the transmission line, avoid the equipment external force damage accident and personal injury accident, ensure the safe and reliable operation of transmission line. Can be used in power plant, transformer substation, line inspection and other units.

[0022] The above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A high-voltage transmission line external damage prevention early warning device, comprising a power supply unit, a high-voltage induction unit, an alarm unit, a signal transmitting unit and a signal receiving alarm unit, the power supply unit being connected to the high-voltage induction unit, characterized in that: The output end of the high-voltage induction unit is connected with the power supply end of the alarm unit, the power supply end of the signal transmitting unit and the warning light, the output end of the alarm unit is connected with the loudspeaker, the signal transmitting unit is connected with the signal receiving alarm unit through radio, the high-voltage induction unit, the alarm unit, the signal transmitting unit and the loudspeaker are installed in an insulating shell, the warning light is arranged on the outer side of the insulating shell, the insulating shell is fixedly installed on the top end of the boom or the high end of other equipment, and the signal receiving alarm unit is a mobile phone of a worker or a wireless receiving module with sound and light warning function installed in an operation room.

2. The external damage early warning device for high voltage transmission lines according to claim 1, characterized in that: The high-voltage induction unit comprises a near-electricity early warning core, the 1-pin of the near-electricity early warning core is connected with one end of the first resistor, one end of the first capacitor and the antenna, the 2-pin of the near-electricity early warning core is connected with the other end of the first resistor, one end of the second capacitor and one end of the second resistor, the 3-pin of the near-electricity early warning core is connected with one end of the crystal oscillator and one end of the third capacitor, the 3-pin of the near-electricity early warning core is connected with the other end of the crystal oscillator and one end of the fourth capacitor, the 6-pin of the near-electricity early warning core is connected with the base of the triode through the third resistor, the collector of the triode is connected with one end of the relay, the other end of the relay is connected with the 8-pin of the near-electricity early warning core, one end of the normally open contact of the relay and the positive output end of the power supply unit, the 5-pin of the near-electricity early warning core is connected with the emitter of the triode, the other end of the fourth capacitor, the other end of the third capacitor, the other end of the second resistor, the other end of the first capacitor, the other end of the second capacitor and the negative output end of the power supply unit, and the other end of the normally open contact of the relay is the output end of the high-voltage induction unit.

3. The external damage warning device for high voltage transmission lines according to claim 1 or 2, characterized in that: The alarm unit comprises a warning sound chip, time relays, resistors and an amplification circuit, the output end of the high-voltage induction unit is connected with the positive power supply end of the warning sound chip, the positive power supply end of the amplification circuit, the positive power supply end of the first time relay and one end of the first normally open contact of the first time relay, the other end of the first normally open contact of the first time relay is connected with the positive power supply end of the second time relay, the negative output end of the power supply unit is connected with the negative power supply end of the warning sound chip, the negative power supply end of the amplification circuit, the negative power supply end of the first time relay and the negative power supply end of the second time relay, one end of the fourth resistor is connected with the first tone control end of the warning sound chip, the other end of the fourth resistor is connected with one end of the first normally open contact of the first time relay and one end of the fifth resistor, the other end of the fifth resistor is connected with one end of the sixth resistor, the other end of the first normally open contact of the first time relay and one end of the normally open contact of the second time relay, the other end of the normally open contact of the second time relay is connected with the other end of the sixth resistor and the second tone control end of the warning sound chip, the first time relay and the second time relay are both closed after being powered for 2-10 seconds, the resistance values of the fourth resistor, the fifth resistor and the sixth resistor are all 100K, and the output end of the warning sound chip is connected with the loudspeaker through the amplification circuit.

4. The external damage warning device for high voltage transmission lines according to claim 2, characterized in that: The type of the near-electricity early warning core is JW0818.

5. The external damage warning device for high voltage transmission lines according to claim 3, characterized in that: The warning sound chip is a siren police car music chip or a human voice warning sound chip.

6. The external damage warning device for high voltage transmission lines according to claim 1, characterized in that: The power supply unit comprises a storage battery with a charge and discharge control circuit and a switch, and the positive end of the storage battery is connected with the switch in series.

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