CN210137989U - High-voltage insulation stool with alarming and lighting functions - Google Patents
High-voltage insulation stool with alarming and lighting functions Download PDFInfo
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- CN210137989U CN210137989U CN201921024503.7U CN201921024503U CN210137989U CN 210137989 U CN210137989 U CN 210137989U CN 201921024503 U CN201921024503 U CN 201921024503U CN 210137989 U CN210137989 U CN 210137989U
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- insulating stool
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Abstract
The utility model discloses a high-voltage insulating stool with alarming and lighting functions, which comprises an insulating stool body, wherein a plurality of adjustable telescopic supporting rods are arranged around the insulating stool body, part of the adjustable telescopic supporting rods are provided with three hundred and sixty degree rotatable lamp holders at the tops, illuminating lamps are arranged on the three hundred and sixty degree rotatable lamp holders and are connected with a lighting control circuit in an alarming and lighting circuit mounting box, the alarming and lighting circuit mounting box is fixed in the insulating stool body, detecting coils are respectively arranged at different positions at the bottom of the insulating stool body, a detecting coil is also arranged at the top of one adjustable telescopic supporting rod and is connected with the alarming control circuit in the alarming and lighting circuit mounting box, an alarming position indicator lamp, an audio alarm and a danger indicator lamp are also arranged on the insulating stool body, the alarm position indicator lamp, the audio alarm and the danger indicator lamp are respectively connected with the alarm control circuit.
Description
Technical Field
The utility model belongs to the technical field of the transformer substation patrols and examines, especially, relate to a high-voltage insulation bench with warning illumination function.
Background
In various power equipment sites of a transformer substation, operation faults such as lightning stroke, system short circuit, equipment burning loss, wire breakage, grounding and the like can be met during transformer operation and maintenance personnel work, higher power equipment needs to be operated, the equipment cannot be touched by the personnel under the standing condition, normal operation or maintenance cannot be realized, and an insulating stool or an insulating ladder needs to be assisted. Under the condition of rush repair at night, operation process or poor illumination, the existing electric insulating stool does not have the illumination function, inconvenience is brought to the work of overhaul and operation personnel, and the work progress is influenced. When the high-altitude fault power equipment works, the insulating stool used by operating personnel does not have a safety warning function and cannot display whether the step voltage exceeding the safe voltage value occurs in the working process.
Chinese patent CN201420139431.1 discloses an automatic alarm insulating boot, as shown in fig. 1-2, comprising a left boot and a right boot, wherein the lower surfaces of the heels of the left boot and the right boot are respectively inlaid with exposed conductive contacts, the two conductive contacts are respectively connected with two hole sockets through lower wires, and the two hole sockets are respectively fixed on the boot uppers of the boot bodies of the left boot and the right boot; an alarm is arranged on the boot upper of the boot body of the right boot, the alarm comprises a double-resistor voltage divider A formed by serially connecting a resistor R1 and a resistor R2, and two ends of a resistor R2 are connected with a buzzer in parallel; two ends of the double-resistor voltage divider A are respectively connected with the hole sockets on the left boot and the right boot through upper wires. The alarm comprises a double-resistance voltage divider A connected with two conductive contact pieces of the insulating boot, and can realize automatic alarm and guarantee the safety of operating personnel when the step voltage of an operation site exceeds a value.
The above described device however still has the following disadvantages:
firstly, when a ground fault occurs, under the condition of high voltage level, if a common resistor is used, the withstand voltage values of four provided resistors are insufficient, so that the resistor breakdown condition can occur, the system is damaged, the alarm failure condition occurs, and workers are in danger; if a resistor with a higher rated withstand voltage value is used, the resistor is large in size and inconvenient to install, and the working efficiency of workers is seriously influenced.
Secondly, the light emitting diode is in one-way conduction, and when the following potential is high, the worker cannot be reminded of paying attention to the field condition.
Thirdly, the whole system adopts a circuit to directly acquire the step voltage value, and needs to add insulation protection measures, so that the cost is increased, the burden of operators is increased, the work of the operators is seriously influenced, and electric shock accidents are easy to happen.
Therefore, how to ensure the routing inspection and maintenance safety of the transformer substation still remains a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a do not possess illumination and alarming function to current high-voltage insulation bench, reply proruption situation can not in time report to the police, has the problem of very big personal safety hidden danger, provides a high-voltage insulation bench that possesses warning lighting function.
The utility model discloses a technical scheme of high-voltage insulation bench with warning illumination function does:
the utility model provides a high-voltage insulation bench with warning illumination function, includes the insulating bench body, the insulating bench body is equipped with a plurality of adjustable telescopic bracing pieces all around, part but three hundred sixty degrees rotatable lamp stands are installed at adjustable telescopic bracing piece top, install the light on the rotatable lamp stand of three hundred sixty degrees, the light links to each other with the lighting control circuit in the warning illumination circuit mounting box, it is internal that the warning illumination circuit mounting box is fixed in the insulating bench body, install detecting coil on the different positions in insulating bench body bottom respectively, detecting coil is also installed at an adjustable telescopic bracing piece top, detecting coil links to each other with the warning control circuit in the warning illumination circuit mounting box, still install warning position pilot lamp, audio alarm and dangerous pilot lamp on the insulating bench body, warning position pilot lamp, audio alarm and dangerous pilot lamp, warning position pilot lamp, The audio alarm and the danger indicating lamp are respectively connected with the alarm control circuit.
Further, the insulating bench body includes from last first support, second support and the third support of arranging according to the order of height down, the top of first support, second support and third support all is equipped with the insulation board, and the bottom all is equipped with the backup pad.
Further, the alarm lighting installation box is installed below the second-order insulation board, and the alarm lighting installation box cover is provided with heat dissipation holes.
Furthermore, the alarm position indicator lamp is a light emitting diode, is arranged at the front upper end of the insulating stool body and is used for indicating the position of alarm.
Further, the danger indicating lamp is installed at the top of the adjustable insulating support rod and used for warning the danger of operating personnel.
Furthermore, the lighting control circuit and the alarm control circuit are powered by lithium batteries, and the lithium batteries are arranged on a circuit board in the alarm lighting circuit mounting box.
Furthermore, the lighting control circuit and the alarm control circuit are designed into a unified system and comprise a signal conditioning circuit, an alarm position indicator lamp, an OR gate, an IGBT driving chip, an IGBT, a danger indicator lamp, an audio alarm and a current-limiting resistor, wherein the input end of the signal conditioning circuit is connected with the detection coil, the output end of the signal conditioning circuit is connected with the OR gate circuit through the alarm position signal indicator lamp, the output end of the OR gate is connected with the IGBT driving chip, the IGBT driving chip drives the IGBT through an electromagnetic signal and controls the danger indicator lamp and the audio alarm to work; the illuminating lamp is connected with a power supply through a current-limiting resistor and a switch, and the current-limiting resistor is provided with a current-limiting resistor switch.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the utility model combines the illumination alarm system with the high-voltage insulating stool, which is convenient for working under poor illumination or emergency repair at night, can quickly detect dangerous voltage and send acousto-optic alarm signals in time, and effectively prevents electric shock casualty accidents caused by negligence, illusion or error of workers;
2) the utility model can detect two common dangerous voltages of step voltage and induced voltage, has comprehensive detection and reliability, wherein the detection coil is arranged at three different positions at the bottom of the insulating stool, can detect the step voltage from each direction, and can be used for detecting the induced voltage of an operation site, thereby greatly reducing the probability of missing report of the dangerous voltage and protecting the operation personnel in all directions;
3) the utility model discloses install the detector on insulating bench, when taking place high-voltage danger, its audible-visual alarm system hears easily again and sees easily and do not influence the operation personnel work promptly, and specially adapted electric power construction and operation and maintainer use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of an automatic alarm binding shoe of the prior art;
FIG. 2 is a schematic view of a prior art warning system for automatically warning of a binding shoe;
FIG. 3 is a schematic structural view of the high-voltage insulating stool of the present invention;
FIG. 4 is a schematic circuit diagram of the alarm lighting circuit of the present invention;
fig. 5 is a schematic circuit diagram of the signal conditioning circuit of the present invention;
wherein, 1, a first adjustable telescopic supporting rod; 2. a second adjustable telescopic support bar; 3. a third adjustable telescopic support bar; 4. a fourth adjustable telescopic support bar; 5. a fifth adjustable telescopic supporting rod; 6. a sixth adjustable telescopic support bar; 7. alarm lighting circuit mounting box.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The technical scheme of the utility model is that: as shown in fig. 3-4, a high-voltage insulating stool with alarm lighting function, includes insulating stool body and alarm lighting system, alarm lighting system includes lighting system and alarm system, lighting system includes a plurality of adjustable telescopic bracing pieces, three hundred sixty degree rotatable lamp holders, light HL1, HL2, HL3 and HL4 and lighting control circuit, adjustable telescopic bracing piece adopts threaded connection with insulating stool body, install around insulating stool body, adopt threaded connection between three hundred sixty degree rotatable lamp holders and the adjustable telescopic bracing piece, install at the top of adjustable telescopic bracing piece, light HL1, HL2, HL3 and HL4 adopt explosion-proof lamps and lanterns, have higher factor of safety, lighting control circuit installs in alarm lighting circuit mounting box 7;
the alarm system comprises detection coils L1, L2, L3 and L4, alarm position indicating lamps D1, D2, D3 and D4, an audio alarm FM and a danger indicating lamp AL and an alarm circuit, wherein the detection coils L1, L2 and L3 are installed at three different positions at the bottom of an insulating stool to detect the stepping voltage in an all-around mode, another detection coil L4 is installed on an adjustable telescopic supporting rod to detect the induction voltage, the alarm position indicating lamps D1, D2, D3 and D4 adopt light emitting diodes and are installed at the front upper end of the insulating stool to indicate the position of alarming, the audio alarm FM is installed on the side face of the insulating stool, the danger indicating lamp AL is installed on the adjustable insulating supporting rod to warn operators of danger, and the alarm circuit is installed in an alarm lighting installation box 7.
As shown in fig. 3, the insulating stool body comprises a first support, a second support and a third support which are arranged from top to bottom according to a height sequence, insulating plates are arranged at the tops of the first support, the second support and the third support, and supporting plates are arranged at the bottoms of the first support, the second support and the third support. Alarm lighting mounting box 7 installs below the second order insulation board, installs the louvre on the lid, ensures control circuit safety and stability operation.
In specific implementation, the adjustable telescopic supporting rods include a first adjustable telescopic supporting rod 1, a second adjustable telescopic supporting rod 2, a third adjustable telescopic supporting rod 3, a fourth adjustable telescopic supporting rod 4, a fifth adjustable telescopic supporting rod 5 and a sixth adjustable telescopic supporting rod 6, wherein the top of the first adjustable telescopic supporting rod 1 is used for fixing a detection coil L4, the top of the second adjustable telescopic supporting rod 2 is used for fixing a hazard indicator lamp AL, and the tops of the third adjustable telescopic supporting rod 3, the fourth adjustable telescopic supporting rod 4, the fifth adjustable telescopic supporting rod 5 and the sixth adjustable telescopic supporting rod 6 are respectively used for fixing illuminating lamps HL1, HL2, HL3 and HL 4.
As shown in fig. 4, the lighting control circuit and the alarm control circuit are designed as a unified system, and include four signal conditioning circuits TL-1, TL-2, TL-3, TL-4, position indicator lamps D1, D2, D3, D4, OR gate OR, an IGBT driver chip, an IGBT, a hazard indicator lamp AL, a buzzer FM, a current limiting resistor, input terminals of the four signal conditioning circuits TL-1, TL-2, TL-3, and TL-4 are respectively connected to detection coils L1, L2, L3, and L4, output terminals are respectively connected to an OR gate circuit through the position signal indicator lamps D1, D2, D3, and D4, an output terminal of the OR gate is connected to the IGBT driver chip, and the IGBT driver chip drives the IGBT through an electromagnetic signal to control the alarm circuit to be turned on; the illuminating lamp is connected with a power supply DC through a current-limiting resistor and switches K1, K2, K3 and K4, the illuminating lamp is turned on by pressing the switches, the brightness of the illuminating lamp can be adjusted through the current-limiting resistor switches KM1, KM2, KM3 and KM4, and the buzzer FM and the danger indicator lamp AL are used as loads of a direct-current power supply.
As shown in fig. 5, the signal conditioning circuit includes a signal amplifier, a current limiting resistor, an adjustable resistor R6, and an anti-interference capacitor C, and the input terminal of the signal conditioning circuit is connected to the detection coil, and the output terminal thereof is connected to the or gate chip.
In specific implementation, the alarm lighting control circuit and the lighting circuit are powered by lithium batteries, and the lithium batteries are installed on a circuit board of the alarm lighting circuit.
The utility model has the advantages of reasonable and simple structure, low production cost and convenient installation, compared with the automatic alarm insulating boots in the background technology, the utility model adopts the detection coil to collect signals, converts the step voltage into the signal voltage with extremely low voltage value, greatly reduces the volume of the alarm system, and does not influence the normal use of the insulating stool; the accident alarm lamp of the utility model directly adopts the direct current power supply for power supply, and is safe and reliable; the whole set of system of the utility model converts the step voltage value into the signal voltage which is harmless to the human body, and does not need to increase the insulation protection measure, thereby greatly reducing the cost, avoiding the electric shock accident and greatly increasing the safety and reliability of the system; the utility model discloses increased lighting system, can open the illumination function under the condition of illumination harmfully, the total powerstation loses the electricity night work, improved operation personnel's work efficiency greatly, reduced incident's emergence probability.
Compare simultaneously and only adopted single-point detection in prior art, the reliability is relatively poor, the utility model discloses a multipoint detection ground voltage detects has adopted three measurement station, has guaranteed reliability and sensitivity that ground voltage detected, and alarm system adopts two trigger modes, detects ground voltage and induced voltage and combines together, has realized all-round detection protection.
The utility model discloses introduce from illumination badness and there are dangerous voltage two aspects below:
firstly, working under the condition of poor illumination, a worker can select the illuminating lamp HL1, HL2, HL3 or HL4 which needs to be turned on by pressing K1, K2, K3 or K4 according to the field condition; the height of the lamp is adjusted by controlling the adjustable telescopic supporting rods 3, 4, 5 and 6, the irradiation direction of the lamp is adjusted by adjusting the steering lamp holder, dead-angle-free illumination can be realized by three hundred and sixty degrees, the working efficiency is improved, and the working safety is guaranteed.
Secondly, the alarm of the utility model adopts two triggering modes, firstly, ground voltage alarm is adopted, as shown in figure 3, the bottom of the insulating stool is provided with a detection coil L1, L2 and L3 in different directions, when the surrounding ground has voltage, the detection coil transmits signals to a signal conditioning circuit TL-1, TL-2 and TL-3, the output of the signal conditioning circuit passes through D1, D2, D3, D4 and a position indicator lamp to indicate the detector to alarm OR a door chip, therefore, no matter which detection coil detects the surrounding voltage, the alarm can be sent out in time to remind the working personnel, the sensitivity of the system is improved, the OR and OR chips are output to the IGBT driving chip to drive the IGBT to be conducted, the acousto-optic alarm circuit is conducted at the moment, alarm sound and optical signal are sent out to remind, dangerous voltage is effectively avoided, the process electrically isolates weak current, the safety of the system is improved, and the reliability of the system is greatly enhanced by adopting the IGBT to conduct and switch off the circuit; secondly, the work position induced voltage alarms, as shown in fig. 3, the top of the insulating stool is provided with an adjustable telescopic rod, the top of the rod is provided with a detection coil L4, the telescopic rod can be pulled down to a proper position during work to detect the induced voltage, and the work principle is similar to that of ground voltage detection. Therefore, the two triggering modes are mutually matched, the detection sensitivity and reliability of the system are greatly improved, and electric shock accidents are prevented.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (7)
1. A high-voltage insulating stool with alarming and lighting functions is characterized by comprising an insulating stool body, wherein a plurality of adjustable telescopic supporting rods are arranged around the insulating stool body, a part of the adjustable telescopic supporting rods are provided with three hundred and sixty-degree rotatable lamp holders at the tops, illuminating lamps are arranged on the three hundred and sixty-degree rotatable lamp holders and are connected with a lighting control circuit in an alarming and lighting circuit mounting box, the alarming and lighting circuit mounting box is fixed in the insulating stool body, detecting coils are respectively arranged at different positions at the bottom of the insulating stool body, a detecting coil is also arranged at the top of one adjustable telescopic supporting rod and is connected with the alarming control circuit in the alarming and lighting circuit mounting box, an alarming position indicator lamp, an audio alarm and a danger indicator lamp are further arranged on the insulating stool body, the alarm position indicator lamp, the audio alarm and the danger indicator lamp are respectively connected with the alarm control circuit.
2. A high-voltage insulating stool with alarm and lighting functions as claimed in claim 1, wherein the insulating stool body comprises a first support, a second support and a third support which are arranged in a height sequence from top to bottom, the top of each of the first support, the second support and the third support is provided with an insulating plate, and the bottom of each of the first support, the second support and the third support is provided with a supporting plate.
3. A high-voltage insulating stool with alarm lighting function as claimed in claim 2, wherein said alarm lighting mounting box is installed under the second-stage insulating plate, and said alarm lighting mounting box cover is installed with heat dissipation holes.
4. A high voltage insulating stool with alarm and lighting functions as claimed in claim 1, wherein the alarm position indicator light is a light emitting diode and is mounted at the upper front end of the insulating stool body for indicating the position of alarm.
5. A high voltage insulating stool with alarm and lighting functions as claimed in claim 1, wherein said danger indicating lamp is installed on top of the adjustable insulating support rod for warning the operator of danger.
6. A high voltage insulating stool with alarm lighting function as claimed in claim 1, wherein said lighting control circuit and alarm control circuit are powered by lithium battery mounted on circuit board in the alarm lighting circuit mounting box.
7. The high-voltage insulating stool with the alarm and lighting functions as claimed in claim 1, wherein the lighting control circuit and the alarm control circuit are designed as a unified system and comprise a signal conditioning circuit, an alarm position indicator lamp, an OR gate, an IGBT driving chip, an IGBT, a hazard indicator lamp, an audio alarm and a current limiting resistor, wherein the input end of the signal conditioning circuit is connected with a detection coil, the output end of the signal conditioning circuit is connected with the OR gate through the alarm position indicator lamp, the output end of the OR gate is connected with the IGBT driving chip, and the IGBT driving chip drives the IGBT through an electromagnetic signal to control the hazard indicator lamp and the audio alarm to work; the illuminating lamp is connected with a power supply through a current-limiting resistor and a switch, and the current-limiting resistor is provided with a current-limiting resistor switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921024503.7U CN210137989U (en) | 2019-07-03 | 2019-07-03 | High-voltage insulation stool with alarming and lighting functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921024503.7U CN210137989U (en) | 2019-07-03 | 2019-07-03 | High-voltage insulation stool with alarming and lighting functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210137989U true CN210137989U (en) | 2020-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921024503.7U Expired - Fee Related CN210137989U (en) | 2019-07-03 | 2019-07-03 | High-voltage insulation stool with alarming and lighting functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210137989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114267163A (en) * | 2021-11-30 | 2022-04-01 | 国网辽宁省电力有限公司锦州供电公司 | Safe operation method in 220 KV equipment field |
-
2019
- 2019-07-03 CN CN201921024503.7U patent/CN210137989U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114267163A (en) * | 2021-11-30 | 2022-04-01 | 国网辽宁省电力有限公司锦州供电公司 | Safe operation method in 220 KV equipment field |
| CN114267163B (en) * | 2021-11-30 | 2023-09-15 | 国网辽宁省电力有限公司锦州供电公司 | Safe operation method in 220 KV equipment field |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200313 Termination date: 20210703 |
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| CF01 | Termination of patent right due to non-payment of annual fee |