CN218099359U - Aerial equipment ground electricity testing device - Google Patents

Abstract

The application relates to the field of electric data measurement, especially, relate to an aerial equipment ground electricity testing device. The electric power tester comprises an insulating rod and an electricity testing contact, wherein the insulating rod is an electric telescopic rod and comprises a motor and a telescopic part, and the motor is connected with the telescopic part and used for driving the telescopic part to extend or compress at a first preset speed; wherein, electroscope still includes: the distance measuring module is arranged at one end, close to the electricity testing contact, of the insulating rod and used for measuring the distance between the electricity testing contact and the part to be detected and generating distance information; the control module is connected with the ranging module and used for receiving the distance information and generating a second speed instruction when the distance information is lower than a preset distance threshold; the motor is connected with the control module and used for operating at a second preset speed when receiving a second speed command during the operation of the motor, and the second preset speed is lower than the first preset speed. The method and the device have the effect of improving the use convenience of the user.

Description

Aerial equipment ground electricity testing device

Technical Field

The application relates to the field of electric data measurement, in particular to an overground electricity testing device for high-altitude equipment.

Background

The electroscope is a device used for detecting whether an object is electrified, and the high-voltage electroscope is mostly used for detecting electrical equipment working in a high-voltage state.

In the maintenance operation of high voltage electricity transmission line and high voltage electrical equipment, the maintenance workman need overhaul under the uncharged condition of the equipment of waiting to overhaul, overhauls when waiting to overhaul the equipment and have the electricity and will seriously influence the health of maintenance workman. Therefore, before maintenance, a maintenance worker is required to check whether the part to be maintained is electrified or not by using the electricity testing device.

However, the electroscopic equipment of a high voltage electroscopic device is typically located at an elevated location, such as a high voltage cable. When the part to be detected is higher than the touchable area of the human body of the user, the user often needs to test electricity through the foot pad, the ladder and other measures, and great inconvenience exists.

SUMMERY OF THE UTILITY MODEL

In order to improve the convenience of using the electricity testing device, this application provides an aerial equipment electricity testing device on ground.

The application provides a high altitude equipment ground electricity testing device adopts following technical scheme:

the ground electricity testing device for the high-altitude equipment comprises an insulating rod and an electricity testing contact, wherein the insulating rod is an electric telescopic rod and comprises a motor and a telescopic component, and the motor is connected with the telescopic component and used for driving the telescopic component to extend or compress at a first preset speed;

wherein, the electroscope device still includes:

the distance measuring module is arranged at one end, close to the electricity testing contact, of the insulating rod and used for measuring the distance between the electricity testing contact and the part to be detected and generating distance information;

the control module is connected with the ranging module and used for receiving the distance information and generating a second speed instruction when the distance information is lower than a preset distance threshold;

the motor is connected with the control module and used for operating at a second preset speed when receiving a second speed command, and the second preset speed is lower than the first preset speed.

Through adopting above-mentioned technical scheme, measure the distance of testing between electrical contact and the position of waiting to detect through the ranging module when the motor operation, when the distance is less than preset distance threshold value, the electric contact of testing of the electric installation of sign has been close to the position of waiting to detect, control motor at this moment presets speed operation with the second, and drive the electric contact of testing the electric installation by the motor and slowly be close to the position of waiting to detect, it is flexible to drive the electric installation of testing through the motor is automatic, user's convenience of using the electric installation has been improved, furthermore, when the distance of testing between the electric contact of testing the electric installation and the position of waiting to detect is less than preset distance threshold value, make the functioning speed of motor slow down, it is too fast to reduce the speed of being close to the position of waiting to detect at the electric installation, the probability that the user is difficult to control, further increased the convenience that the user used the electric installation.

Optionally, the control module comprises a comparator unit and a speed control unit,

the comparator unit comprises a negative input end, a positive input end and an output end, wherein the negative input end is connected with the control module and used for receiving the distance information;

the positive input end is used for being connected with a voltage generator for generating a preset distance threshold;

the comparator unit is used for outputting a second speed signal when the distance information is lower than the preset distance threshold;

the speed control unit is connected with the output end of the comparator unit and the motor and is used for outputting a second speed instruction to the motor when receiving a second speed signal.

By adopting the technical scheme, the comparator unit is used for comparing the distance between the electricity testing contact and the part to be detected with the preset distance threshold value, the speed control unit is used for outputting a second speed instruction to the motor when the distance is smaller than the preset distance threshold value, and the running speed of the driving motor is switched to the second preset speed.

Optionally, the electricity testing device further comprises a telescopic switch, and the telescopic switch is used for generating a forward rotation signal when a user inputs an extension instruction;

the speed control unit comprises a trigger and a rotating speed regulator;

the trigger is connected with the output end of the comparator unit and used for receiving the second speed signal; the trigger is also connected with the telescopic switch and is used for generating a speed trigger signal at the moment of receiving a second speed signal if the second speed signal is received when the forward rotation signal is received, and continuously outputting the speed trigger signal to the speed control unit until the forward rotation signal is not received;

the rotating speed regulator is connected with the trigger and the motor and is used for driving the motor to run at a second preset speed when receiving the speed trigger signal.

By adopting the technical scheme, when a user wants to stretch the insulating rod to gradually approach the equipment to be detected, by pressing the telescopic switch, an extension instruction is input, the telescopic switch outputs a forward rotation signal to the trigger, the trigger generates a speed trigger signal to the speed control unit when receiving the forward rotation signal, and if receiving a second speed signal, the trigger latches the speed trigger signal, so that in the process of stretching the insulating rod, once the distance between the electroscope contacts is smaller than a preset distance threshold, the running speed of the motor is kept to run at a second preset speed, and inconvenience caused by sudden speed change when the electroscope device deviates from the part to be detected and the distance exceeds the preset distance threshold when the user uses the electroscope device is reduced.

Optionally, the trigger signal is a high level signal;

the trigger comprises an AND gate and an edge D trigger; the AND gate comprises a first input end, a second input end and an output end, the edge D trigger is a trigger triggered by a rising edge and comprises a clock end CLK, a reset end RST, an input end D and an output end Q;

the first input end of the AND gate is connected with the telescopic switch and used for receiving a high-level forward rotation signal, and the second input end of the AND gate is connected with the comparator unit and used for receiving a high-level second speed signal; the output end of the AND gate is connected with a clock end CLK of the edge D trigger, and the input end D of the edge D trigger is connected with a power supply VCC;

the edge D trigger is used for outputting a high-level speed trigger signal from an output end Q at the rising edge moment of a clock end CLK; and the reset end RST of the edge D trigger is connected with the telescopic switch and used for controlling the edge D trigger to reset when receiving a low level, so that the output end Q of the edge D trigger outputs the low level.

Through adopting above-mentioned technical scheme, the trigger that the border D flip-flop is rising edge trigger, at every rising edge of the signal that clock end CLK received, output Q setting is the level signal of input D input, when reset end RST received the low level, output Q exports the low level, realizes that the distance of examining the electrical contact is less than the preset distance threshold, and when examining the electrical installation and being in the extending condition, the signal of output Q output will be continuously latched as the speed trigger signal of high level.

Optionally, the ranging module is further connected to the telescopic switch, and is configured to operate when the forward rotation signal is received, and is configured to stop operating when the forward rotation signal is not received.

Through adopting above-mentioned technical scheme, when the user extended the electroscope, ranging module just was in operating condition, and when the user shrink or stopped using, ranging module stop work to practice thrift ranging module's power consumption.

Optionally, the electricity testing device comprises an electricity testing circuit, and the electricity testing circuit comprises an induction detection module, a controllable oscillation module, a switch driving module and an audible and visual alarm module;

the induction detection module is connected with the electricity testing contact and used for detecting whether electricity exists in a preset range of the electricity testing contact or not and generating a trigger signal representing the electricity existence when the electricity exists;

the controllable oscillation module is connected with the induction detection module and used for outputting rectangular waves when receiving the trigger signals;

the switch driving module is connected with the controllable oscillation module and the sound-light alarm module and is used for receiving rectangular waves and driving the sound-light alarm module to give an alarm indication when the rectangular waves are received.

By adopting the technical scheme, when a user uses the electricity testing device, if the part to be detected is electrified, the sound-light alarm module is driven to carry out sound-light intermittent warning effect.

Optionally, the electricity testing device further includes an extension device, the extension device includes a display module and a first wireless communication module, the electricity testing circuit further includes a second wireless communication module, the second wireless communication module is connected to the induction detection module and the first wireless communication module, and is configured to receive a trigger signal and send the trigger signal to the extension device;

the display module is connected with the first wireless communication module and used for displaying when a trigger signal is received.

Through adopting above-mentioned technical scheme, through first wireless communication module and second wireless communication module, will test the result that the electric installation tested the electricity and send to extension device to show the test electric result of testing the electric installation on the display module of order extension device, with the test electric result that other non-electroscope know the current electroscope of testing the electric installation, and then know the electroscope condition of current electroscope, with the work convenience that improves electroscope.

Optionally, a camera is further arranged at one end of the electricity testing contact of the telescopic component;

the camera is connected with the second wireless communication module and used for shooting image information of the electricity testing contact end and sending the image information to the extension device through the second wireless communication module;

the extension device is used for displaying when receiving the image information.

Through adopting above-mentioned technical scheme, utilize the camera to shoot the image of testing the electrical contact to send and show to dividing the machine, make other non-test electricians can look over the current concrete behavior of testing the electrician, in time give when unusual and test the electrician help, and then improve the operational reliability and the convenience of testing the electrician.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the electric testing device comprises a motor, a distance measuring module, a distance detecting module, a motor control module, a motor and an electricity testing device, wherein the distance measuring module is used for measuring the distance between an electricity testing contact and a part to be tested when the motor operates, when the distance is lower than a preset distance threshold value, the electricity testing contact of the electricity testing device is represented to be close to the part to be tested, the motor is controlled to operate at a second preset speed, the electricity testing contact of the electricity testing device is driven by the motor to be slowly close to the part to be tested, the electricity testing device is automatically driven by the motor to stretch, the convenience of using the electricity testing device by a user is improved, further, when the distance between the electricity testing contact of the electricity testing device and the part to be tested is lower than the preset distance threshold value, the operation speed of the motor is reduced, the speed of the electricity testing device close to the part to be tested is too high, the probability of being difficult to control by the user is reduced, and the convenience of using the electricity testing device by the user is further increased.

2. When a user wants to stretch the insulating rod to gradually approach the device to be detected, an extension instruction is input by pressing the telescopic switch, the telescopic switch outputs a forward rotation signal to the trigger, the trigger receives the forward rotation signal, if a second speed signal is received, a speed trigger signal is generated to the speed control unit, and the speed trigger signal is latched through the trigger, so that the motor can run at a second preset speed in the process of stretching the insulating rod, once the distance of the electricity testing contact is smaller than a preset distance threshold, the running speed of the motor can be maintained to run at the second preset speed, and inconvenience caused by sudden speed change when the electricity testing device is deviated from a part to be detected to enable the distance to exceed the preset distance threshold when the electricity testing device is used by the user is reduced.

Drawings

Figure 1 is a block diagram of an aerial equipment electrical inspection device according to an embodiment of the present application.

Figure 2 is a diagram of the trigger connection of an aerial equipment electrical inspection device according to an embodiment of the present application.

Figure 3 is a block diagram of an electrical verification circuit of an aerial equipment electrical verification device according to an embodiment of the present application.

Figure 4 is a circuit diagram of an electrical verification circuit of an aerial equipment electrical verification device according to an embodiment of the present application.

Description of reference numerals: 1. a distance measurement module; 2. a control module; 21. a comparator unit; 22. a speed control unit; 221. a trigger; 222. a rotational speed regulator; 3. an electric motor; 4. a telescopic switch; 5. an electroscopic circuit; 51. an induction detection module; 52. a controllable oscillation module; 53. a switch drive module; 54. a sound and light alarm module; 55. a second wireless communication module; 6. an extension device; 61. a display module; 62. a first wireless communication module; 7. a camera.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses electrical installation is tested on eminence equipment ground. Aerial equipment ground electricity testing device is including testing electric contact, insulator spindle and insulated handle, insulator spindle one end is connected with insulated handle, the other end with test electric contact and be connected, use when testing electric device and treating the detection position and test the electricity at the user, the user holds insulated handle, the order is tested the electric contact and is close to gradually and wait to detect the position, when detecting to detect the position of waiting to detect and have the electricity, it will report to the police and instruct in order to indicate that the user waits to detect the position at present and have the electricity to test the electric device, user control tests electric contact and leaves and wait to detect the position, accomplish and test the electricity operation.

In order to improve the convenience that the user used to test the electric installation, set up the insulator spindle into the telescopic insulator spindle, when the user used to test the electric installation, if wait to detect the region that the position is higher than the human tangible region of user, can be through tensile insulator spindle so that the handheld electric installation of testing of user is close to gradually and waits to detect the position, improved the convenience that the user used to test the electric installation.

But the user is when utilizing the electric installation of examining of telescopic insulator spindle to examine the electricity, it is difficult to control to examine the flexible range of electric installation, when user control insulator spindle extends in order to be close to gradually waiting to detect the position, need roughly guess and wait to detect the distance between the position, later control insulator spindle extends and constantly is close to waiting to detect the position, but the flexible range of examining the electric installation is difficult to control, when being in the near region of waiting to detect near the position, it is too big to examine electric installation if the range of extension, then easy direct touch waits to detect the position, perhaps with waiting to detect the position and bump, there is great danger.

In order to improve the controllability of the telescopic insulating rod, the telescopic insulating rod is set to be an electric telescopic rod. Electric telescopic handle includes motor 3 and flexible part, and flexible part one end sets up tests electrical contact, and the other end sets up insulating handle, and when flexible part shrink, test the distance between electrical contact and the insulating handle and reduce, when flexible part extends, test the distance increase between electrical contact and the insulating handle. And the electricity testing device is also provided with a telescopic switch 4 for receiving stretching instructions, contraction instructions and stopping instructions input by a user. The motor 3 is connected to a telescopic switch 4 and a telescopic member, and when a user inputs a stretch command, the motor 3 rotates forward to drive the telescopic member to extend, and when a user inputs a retract command, the motor 3 rotates backward to drive the telescopic member to compress, and when a user inputs a stop command, the motor 3 stops rotating.

The telescopic switch 4 comprises an extension switch and a contraction switch, when a user presses the extension switch, the motor 3 continuously rotates forwards to drive the telescopic component to extend during the period of pressing the extension switch, namely the period of inputting a stretching instruction by the user; when the user presses the contraction switch device, namely the user inputs a contraction command, the motor 3 continuously rotates reversely to drive the telescopic component to contract; when the user does not press the extension switch and the retraction switch, the stop command input by the user is represented, and at the moment, the motor 3 keeps a stalling state, and the telescopic component does not retract or extend.

Referring to fig. 1, the electroscope further comprises a distance measuring module 1 and a control module 2, wherein the distance measuring module 1 is arranged at one end of the insulating rod close to the electroscope contact and is used for measuring the distance between the electroscope contact and the part to be detected and generating distance information; the control module 2 is connected with the ranging module 1 and used for receiving the distance information and generating a second speed instruction when the distance information is lower than a preset distance threshold; the electric motor 3 is connected to the control module 2 for operating at a second preset speed upon receipt of a second speed command.

Specifically, electric telescopic handle is automatically controlled structure, during the user presses extension switch, motor 3 drives telescopic part extension or compression with first preset speed, in order to wait the adjacent region near the position of waiting to detect, can reduce the speed of extension or compression, so that the user control tests the range that electric device is close to the position of waiting to detect, when the distance between the position of waiting to detect electric device's electroscope contact and the position of examining, the electroscope contact that the representation electroscope device gets into the adjacent region near the position of waiting to detect, for reducing the speed of extension or compression this moment, will adjust motor 3's operating speed, and then reduce telescopic part extension or compressed range, even make the electroscope contact of electroscope device will slowly be close to the position of waiting to detect with the second preset speed that is less than first preset speed, the convenience of using electroscope device has been improved.

The distance measuring module 1 is arranged on the telescopic component and is located at one end, close to the electricity testing contact, of the telescopic component, and used for measuring the distance between the electricity testing contact and the part to be detected and generating distance information with the measured distance to be sent to the control module 2. Ranging module 1 can be infrared distance measuring sensor for send with the parallel infrared light of the axial direction who tests electrical contact, the infrared light that parallels with the extension direction who tests electric installation promptly, when the infrared light contact of transmission waits to detect the position, will be launched back and test electric installation, and then ranging module 1 can be through sending and the infrared light of reflection back, measure test electrical contact and wait to detect the distance between the position, and generate distance information.

Referring to fig. 1, the control module 2 includes a comparator unit 21 and a speed control unit 22; the comparator unit 21 includes a negative input end, a positive input end, and an output end, where the negative input end is connected to the control module 2 and used for receiving distance information; the positive input end is used for being connected with a voltage generator for generating a preset distance threshold; the comparator unit 21 is configured to output a second speed signal from the output end when the distance information is lower than the preset distance threshold, where the output second speed signal is substantially a high level signal; the speed control unit 22 is connected to the output of the comparator unit 21 and also connected to the motor 3, and is configured to output a second speed command to the motor 3 when receiving the second speed signal.

The comparator unit 21 may be a voltage comparator of the LM393 model, or may be another model, which is not limited herein.

Specifically, when the distance information is higher than the preset distance threshold, that is, the distance between the electrical inspection contact and the part to be detected is higher than the preset distance threshold, that is, the electrical inspection contact is not located in the vicinity of the part to be detected, at this time, the output end of the comparator unit 21 outputs a low level, the speed control unit 22 does not output the second speed instruction to the motor 3, and the motor 3 operates at the default first preset speed when operating; when distance information is lower than the preset distance threshold, namely, the distance between the electricity testing contact and the part to be detected is lower than the preset distance threshold, at the moment, the electricity testing contact is located in a near area near the part to be detected, at the moment, the output end of the comparator unit 21 outputs a high-level second speed signal, the speed control unit 22 receives the high-level second speed signal and outputs a second speed instruction to the motor 3, at the moment, the motor 3 runs at a second preset speed, the speed of the electricity testing contact of the electricity testing device close to the part to be detected is reduced, and then a user can conveniently control in the near area, and safety of the user is improved.

The speed control unit 22 is connected to the motor 3 drive unit for generating a second speed command to the motor 3 drive unit for driving the motor 3 to operate at a second preset speed.

Referring to fig. 1, further, in order to further improve the convenience of the user in using the electroscope, the speed control unit 22 of the embodiment of the present application includes a flip-flop 221 and a rotation speed adjuster 222, wherein the flip-flop 221 is connected to the output terminal of the comparator unit 21 for receiving the second speed signal; the trigger 221 is further connected to the telescopic switch 4, and the telescopic switch 4 is configured to generate a forward rotation signal when the user inputs an extension instruction; the trigger 221 is configured to generate a speed trigger signal at the instant when the second speed signal is received when the forward rotation signal is received and if the second speed signal is received, and continuously output the speed trigger signal to the speed control unit 22 until the forward rotation signal is not received; the speed regulator 222 is connected to the trigger 221 and also connected to the motor 3, and is configured to drive the motor 3 to operate at a second preset speed when receiving the speed trigger signal.

In a possible implementation manner, the rotation speed regulator 222 includes a PWM generator and a motor driver, where the PWM generator is connected to the trigger 221, and is configured to output a PWM signal with a first duty ratio when the speed trigger signal is not received, and generate a PWM signal with a second duty ratio when the speed trigger signal is received, where a model of the PWM generator may be UC3846, or UC3843, or may be a single chip microcomputer, and the like, and is not limited in this embodiment of the application; the motor driver is connected with the PWM generator and is configured to receive a PWM signal, and the motor driver may be of a type DRV8833 or a type TB6612FNG and is configured to perform motor speed regulation according to a duty ratio of the PWM signal, drive the motor 3 to operate at a first preset speed when receiving the PWM signal with a first duty ratio, and drive the motor 3 to operate at a second preset speed when receiving the PWM signal with a second duty ratio.

When user control electric telescopic handle extends, if test electric contact and wait to detect when the distance between the position is less than preset distance threshold, will control motor 3 and predetermine speed operation with the second, at this moment, if the handheld directional skew of examining electric installation of user waits to detect the position, and lead to the measured distance to be greater than predetermineeing distance threshold, still control motor 3 at this moment and predetermine speed operation with the second, until the user no longer presses the extension instruction, motor 3 will stop the operation this moment, later if when user control electric telescopic handle contracts, trigger 221 does not generate speed trigger signal again and motor 3 will operate with first predetermined speed promptly, control electric telescopic handle contracts.

Specifically, referring to fig. 2, the flip-flop 221 includes an and gate and an edge D flip-flop, where the edge D flip-flop is a D flip-flop triggered by a rising edge, and includes a clock terminal CLK, a reset terminal RST, an input terminal D, and an output terminal Q; the first input end of the AND gate is connected with the telescopic switch 4 and used for receiving a high-level forward rotation signal, and the second input end of the AND gate is connected with the comparator unit 21 and used for receiving a high-level second speed signal; the output end of the AND gate is connected with the clock end CLK of the edge D trigger, and the reset end RST of the edge D trigger is connected with the telescopic switch 4 and used for resetting when receiving low level, so that the output end of the edge D trigger outputs low level. The input end of the edge D trigger is connected with a power supply VCC and is used for receiving high level.

Referring to fig. 2, when a user controls the electric telescopic rod to extend, the reset end of the trigger receives a high level, the edge D trigger works normally, when the comparator unit 21 outputs a low level, the output end of the and gate outputs a low level, and when the comparator unit 21 continuously outputs a low level, the clock end CLK receives a low level signal, and the edge D trigger outputs a low level; if the comparator unit 21 jumps from low level to high level, the and gate output end will output high level to the clock end CLK of the edge D flip-flop, and when the edge D flip-flop rises, the level received by the edge D flip-flop input end D will be set to the output end Q for output, if the input end D input is low level, the output end Q will output low level, if the input end D input is high level, the output end Q will output high level, and will keep outputting low level/high level; because the input end D receives high level, the speed trigger signal of high level is continuously output at the output end Q; if the direction of the user holding the electroscope deviates from the part to be detected, so that the distance exceeds a preset distance threshold value, and the high-level speed trigger signal output by the output end Q is latched at the moment, the motor 3 keeps running at a second preset speed; if the user stops controlling the electricity testing device to extend at the moment, the telescopic switch 4 outputs a low level signal, the reset end RST of the edge D trigger receives a low level, and the edge D trigger is reset to be output at the low level. So that when the user uses to test the electric installation and make to test the electric installation skew and wait to detect the position, still can predetermine the telescopic link extension of speed drive test electric installation with the second, and then improved the convenience that the user used and tested the electric installation.

Further, referring to fig. 1, the distance measuring module 1 is connected to the telescopic switch 4, when a user inputs an extension instruction, the distance measuring module 1 receives a forward rotation signal, measures a distance between the electricity testing contact and a part to be tested when the forward rotation signal is received, sends distance information to the control module 2 when the telescopic component is extended, and when the distance information is smaller than preset distance information, the control module 2 controls the running speed of the motor 3 of the electricity testing device to be reduced and runs at a second preset speed; when a user does not input an extension instruction, namely when the user controls the telescopic component to contract or stop rotating, the distance measuring module 1 does not work, the distance between the electricity testing contact and the part to be detected does not need to be measured, the control module 2 does not receive distance information and does not output a second speed instruction, the motor 3 keeps rotating at a first preset speed or stops rotating when the motor 3 does not receive the second speed instruction, if the user inputs a contraction instruction at the moment, the motor 3 controls the telescopic component to contract at the first preset speed, and if the user inputs a stop rotating instruction at the moment, the motor 3 is in a non-working state and keeps a stop rotating state. The power consumption of the distance measuring module 1 is saved, and the convenience of work of a user is further improved.

Further, referring to fig. 3, the electricity testing device further comprises an electricity testing circuit 5, the electricity testing circuit 5 is connected with the electricity testing contact, the electricity testing contact gradually approaches the part to be detected to detect whether the part to be detected is electrified or not, and when the electricity testing circuit 5 detects the electrification, the electricity testing device gives an alarm to a user. Still further, in a possible implementation manner, the control module 2 may be further connected to an electricity testing circuit 5, when the electricity testing circuit 5 detects that the part to be detected is electrified, the electricity testing circuit 5 outputs a trigger signal, and when the control module 2 receives the trigger signal and a forward rotation signal output by the telescopic switch 4 at the same time, the control module stops the rotation of the motor 3, so as to reduce the occurrence of the situation that a user has no time to control the telescopic rod to stop running when the electricity testing device is stretched to be close to the part to be detected.

The electroscope circuit 5 of the electroscope apparatus includes an induction detection module 51, a controllable oscillation module 52, a switch driving module 53, and an audible and visual alarm module 54. Referring to fig. 3, the sensing detection module 51 is connected to the electrical inspection contact, and is configured to detect whether there is electricity in a preset range of the electrical inspection contact, and generate a trigger signal indicating that there is electricity when there is electricity; the controllable oscillation module 52 is connected with the induction detection module 51, and is configured to receive the trigger signal, start oscillation when receiving the trigger signal, and output a rectangular wave; the switch driving module 53 is connected to the controllable oscillation module 52 and the sound and light alarm module 54, and is configured to receive the rectangular wave and drive the sound and light alarm module 54 to give an alarm when receiving the rectangular wave.

Referring to fig. 4, the sensing detection module 51 includes a first inductor L1, a first resistor R1, a second resistor R2, a first triode VT1, a third resistor R3, a fourth resistor R4, a first capacitor C1, and a fifth resistor R5, where one end of the first inductor L1 is connected to the electricity testing contact, the other end of the first inductor L is connected to one end of the first resistor R1, the other end of the first resistor R1 is connected to the base of the first triode VT1, the emitter of the first triode VT1 is grounded, the collector of the first triode VT1 is connected to one end of the third resistor R3, the other end of the third resistor R3 is connected to the fourth resistor R4, and the other end of the fourth resistor R4 is used for outputting a trigger signal; the second resistor R2 is connected between the base electrode and the emitting electrode of the first triode VT1, one end of the fifth resistor R5 is connected with the power supply, the other end of the fifth resistor R5 is connected with the collecting electrode of the first triode VT1, one end of the first capacitor C1 is connected with the power supply, and the other end of the first capacitor C1 is connected with one end of the third resistor R3 connected with the fourth resistor R4.

When the electricity testing contact is close to the electrified part, the first triode VT1 is conducted, the collector is at a low level, and one end of the fourth resistor R4 outputs a trigger signal at the low level; when no charged object exists in the preset range near the electricity testing contact, the first triode VT1 is cut off, the potential of the collector is high level, and one end of the fourth resistor R4 outputs high level.

Referring to fig. 4, the controllable oscillation module 52 includes a nand gate integrated chip U1, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, and a capacitor C2; the nand gate integrated chip U1 can adopt a chip with the model number HD14011BP, and four nand gates are integrated inside the nand gate integrated chip, wherein a pin 8 and a pin 9 of the HD14011BP chip are input ends of a first nand gate, and a pin 10 is an output end of the first nand gate; pin 11 is the output of the second nand gate, and pin 12 and pin 13 are the two inputs of the first nand gate; pin 1 and pin 2 are two input ends of a third nand gate, and pin 3 is an output end of the third nand gate; pin 4 is the output of the fourth nand gate, and pin 5 and pin 6 are the two inputs of the first nand gate, respectively.

Referring to fig. 4, one end of the fourth resistor R4 outputting the trigger signal is connected to the pin 8, the pin 9 is connected to the pin 8, the pin 10 is connected to the same node a as the pin 12 and the pin 13, the pin 11 is connected to the pin 5, the pin 6 is connected to one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected to one end of the second capacitor C2, the other end of the second capacitor C2 is connected to the pin 3, one end of the seventh resistor R7 is connected to the pin 4, and the other end of the seventh resistor R7 is connected to one end of the sixth resistor R6 connected to the second capacitor C2. Pin 1 and pin 2 are connected to a node B and then to pin 4, and one end of the eighth resistor R8 is connected to pin 3, and the other end is configured to output a rectangular wave when receiving a trigger signal.

Specifically, when the pin 8 receives a low-level trigger signal, the output end of the first nand gate, i.e., the pin 10, outputs a high level, two of the second nand gates receive a high level, and the pin 11 outputs a low level to the input end pin 5 of the fourth nand gate, where the fourth nand gate, the sixth resistor R6, the seventh resistor R7, the second capacitor C2, the eighth resistor R8, and the third nand gate constitute a controllable oscillator, and when the pin 5 receives a low level, the controllable oscillator starts oscillation, and generates a rectangular wave at the pin 3, and the rectangular wave is output by the eighth resistor R8.

Referring to fig. 4, the switch driving module 53 is connected to one end of the eighth resistor R8 in the controllable oscillation module 52, which outputs the rectangular wave, and the switch driving module 53 is configured to drive the sound and light alarm module 54 to perform sound and light warning when receiving the rectangular wave.

Specifically, referring to fig. 4, the switch driving module 53 includes a second transistor VT2, a third transistor VT3, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, and a second coil L1; the sound and light alarm module 54 comprises a light emitting diode LED and a piezoelectric ceramic piece Y1.

Referring to fig. 4, the second triode VT2 and the third triode VT3 are both NPN-type triodes, the base of the second triode VT2 is connected to one end of the eighth resistor R8 for outputting rectangular waves, the collector of the second triode VT2 is connected to the positive electrode of the power supply, the emitter is connected to the anode of the light emitting diode LED, the cathode of the light emitting diode LED is connected to one end of the eleventh resistor R11, and the other end of the eleventh resistor R11 is grounded. A collector electrode of the third triode VT3 is connected with an emitting electrode of the second triode VT2, the emitting electrode of the third triode VT3 is connected with one end of the second coil L2, and the other end of the third triode VT3 is connected with the negative electrode of the power supply; the base electrode of the third triode VT3 is connected with one end of a tenth resistor R10, the other end of the tenth resistor R10 is connected with one end of a ninth resistor R9, the other end of the ninth resistor R9 is grounded, one end of a piezoelectric ceramic piece Y1 is connected with the base electrode of the third triode VT3, and the other end of the piezoelectric ceramic piece Y1 is connected with the negative electrode of a power supply.

Referring to fig. 4, when the eighth resistor R8 outputs a rectangular wave to the switch driving module 53, the second transistor VT2 and the third transistor VT3 are intermittently turned on, so as to intermittently turn on the piezoelectric ceramic piece Y1, intermittently give an alarm, and drive the light emitting diode LED to be intermittently turned on, and the light emitting diode LED flashes to indicate that the current detection part of the electroscope is electrified.

Still further, refer to fig. 3, the electroscope of this application embodiment still includes extension device 6, and the user needs cat ladder etc. to test the electricity and detects when overhauing circuits such as high tension cable usually, tests the electrician promptly in order to protect the maintenance workman who is using the electroscope, can set up extension device 6 subaerial, tests the electrician and carries the electroscope body and carry out eminence work of testing the electricity. The extension device 6 comprises a display module 61 and a first wireless communication module 62, the electricity testing circuit 5 further comprises a second wireless communication module 55, the second wireless communication module 55 is connected with the induction detection module 51 and is also connected with the first wireless communication module 62, when the electricity testing device detects that electricity exists, the induction detection module 51 outputs a trigger signal representing that electricity exists, and at the moment, the trigger signal is sent to the display module 61 of the extension device 6 through the second wireless communication module 55 and the first wireless communication module 62; the display module 61 is connected to the first wireless communication module 62, and is configured to display when receiving the trigger signal. Other maintenance workers can clearly determine the electricity testing condition of the electricity testing personnel according to the electricity testing result displayed in the extension device 6, and the workers can also prompt the electricity testing personnel to pay attention to safety and the like so as to improve the personal safety of each maintenance personnel.

Still further, referring to fig. 3, in order to further understand the electricity testing working condition of the electricity testing personnel, a camera 7 is further arranged at one end of the electricity testing contact of the telescopic component; the camera 7 is connected with the second wireless communication module 55 and is used for shooting image information of the electricity testing contact end and sending the image information to the extension device 6 through the second wireless communication module 55; the extension device 6 is used for display when receiving image information.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The ground electricity testing device for the high-altitude equipment comprises an insulating rod and an electricity testing contact, and is characterized in that the insulating rod is an electric telescopic rod and comprises a motor (3) and a telescopic part, wherein the motor (3) is connected with the telescopic part and used for driving the telescopic part to extend or compress at a first preset speed;

wherein, electroscope still includes:

the distance measuring module (1) is arranged at one end, close to the electricity testing contact, of the insulating rod and used for measuring the distance between the electricity testing contact and the part to be detected and generating distance information;

the control module (2) is connected with the ranging module (1) and is used for receiving the distance information and generating a second speed instruction when the distance information is lower than a preset distance threshold;

the motor (3) is connected with the control module (2) and is used for operating at a second preset speed when receiving a second speed command when the motor (3) operates, and the second preset speed is lower than the first preset speed.

2. Electroscope apparatus according to claim 1, characterized in that the control module (2) comprises a comparator unit (21) and a speed control unit (22),

the control module (2) comprises a comparator unit (21) and a speed control unit (22),

the comparator unit (21) comprises a negative input end, a positive input end and an output end, wherein the negative input end is connected with the control module (2) and is used for receiving the distance information;

the positive input end is used for being connected with a voltage generator for generating a preset distance threshold;

the comparator unit (21) is used for outputting a second speed signal when the distance information is lower than the preset distance threshold;

the speed control unit (22) is connected with the output end of the comparator unit (21) and is also connected with the motor (3) and used for outputting a second speed instruction to the motor (3) when receiving a second speed signal.

3. The electroscope apparatus according to claim 2, characterized in that the electroscope apparatus further comprises a telescopic switch (4), the telescopic switch (4) is used for generating a forward rotation signal when a user inputs an extension instruction;

the speed control unit (22) comprises a trigger (221) and a rotational speed regulator (222);

the trigger (221) is connected with the output end of the comparator unit (21) and is used for receiving the second speed signal; the trigger (221) is further connected with the telescopic switch (4), and the trigger (221) is used for generating a speed trigger signal at the moment of receiving a second speed signal if the second speed signal is received when the forward rotation signal is received, and continuously outputting the speed trigger signal to the speed control unit (22) until the forward rotation signal is not received;

the rotating speed regulator (222) is connected with the trigger (221) and the motor (3) and is used for driving the motor (3) to operate at a second preset speed when receiving the speed trigger signal.

4. The electroscope of claim 3, wherein the trigger signal is a high level signal;

the trigger (221) comprises an AND gate and an edge D trigger; the AND gate comprises a first input end, a second input end and an output end, the edge D trigger is a trigger triggered by a rising edge and comprises a clock end CLK, a reset end RST, an input end D and an output end Q;

the first input end of the AND gate is connected with the telescopic switch (4) and used for receiving a high-level forward rotation signal, and the second input end of the AND gate is connected with the comparator unit (21) and used for receiving a high-level second speed signal; the output end of the AND gate is connected with a clock end CLK of the edge D trigger, and the input end D of the edge D trigger is connected with a power supply VCC;

the edge D trigger is used for outputting a high-level speed trigger signal from an output end Q at the rising edge moment of a clock end CLK; and the reset end RST of the edge D trigger is connected with the telescopic switch (4) and is used for controlling the edge D trigger to reset when receiving a low level, so that the output end Q of the edge D trigger outputs the low level.

5. The electroscope arrangement according to claim 3, wherein the distance measuring module (1) is further connected to the telescopic switch (4) for operating when a forward rotation signal is received and for stopping operating when no forward rotation signal is received.

6. Electroscope apparatus according to claim 1, characterized in that, the electroscope apparatus comprises an electroscope circuit (5), the electroscope circuit (5) comprises an induction detection module (51), a controllable oscillation module (52), a switch driving module (53) and a sound and light alarm module (54);

the induction detection module (51) is connected with the electricity testing contact and used for detecting whether electricity exists in a preset range of the electricity testing contact or not and generating a trigger signal representing the electricity existence when the electricity exists;

the controllable oscillation module (52) is connected with the induction detection module (51) and is used for outputting rectangular waves when receiving the trigger signal;

the switch driving module (53) is connected with the controllable oscillation module (52) and the sound-light alarming module (54) and is used for receiving the rectangular wave and driving the sound-light alarming module (54) to give an alarm when the rectangular wave is received.

7. Electroscopic device according to claim 6, further comprising an extension device (6), said extension device (6) comprising a display module (61) and a first wireless communication module (62), said electroscopic circuit (5) further comprising a second wireless communication module (55), said second wireless communication module (55) being connected to said inductive detection module (51) and to said first wireless communication module (62) for receiving a trigger signal and sending said trigger signal to said extension device (6);

the display module (61) is connected with the first wireless communication module (62) and is used for displaying when a trigger signal is received.

8. Electroscopic device according to claim 7, wherein one end of the electroscopic contact of the telescopic member is further provided with a camera (7);

the camera (7) is connected with the second wireless communication module (55) and is used for shooting image information of the electricity testing contact end and sending the image information to the extension set device (6) through the second wireless communication module (55);

the extension device (6) is used for displaying when receiving the image information.

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