CN109470980B - Cable maintenance safety detection device - Google Patents
Cable maintenance safety detection device Download PDFInfo
- Publication number
- CN109470980B CN109470980B CN201810202196.0A CN201810202196A CN109470980B CN 109470980 B CN109470980 B CN 109470980B CN 201810202196 A CN201810202196 A CN 201810202196A CN 109470980 B CN109470980 B CN 109470980B
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- circuit
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- grounding
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- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000012423 maintenance Methods 0.000 title claims abstract description 16
- 239000004020 conductor Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 abstract description 11
- 230000002708 enhancing effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
Abstract
The invention discloses a cable maintenance safety detection device, which comprises a shell, a mainboard and a grounding electrode, a base, an elastic buckle and electric control stroke actuators, wherein the mainboard and the grounding electrode are arranged in the shell; every automatically controlled stroke executor bottom all is equipped with the telescopic link, and every telescopic link bottom all is equipped with the backup pad, and mainboard and earthing pole electricity are connected, earthing pole and base fixed connection, and the mainboard includes pilot lamp circuit and auxiliary circuit, and auxiliary circuit is connected with the pilot lamp circuit electricity, is equipped with first controller in the base, and each automatically controlled stroke executor all is connected with first controller electricity. The invention has the characteristics of facilitating the working personnel to master the safety state of the grounding safety area in real time and enhancing the stability of grounding safety detection.
Description
Technical Field
The invention relates to the technical field of cable maintenance safety detection equipment, in particular to a cable maintenance safety detection device which is convenient for workers to master the safety state of a grounding safety area in real time.
Background
At present, when a power cable line is overhauled in an accident, a group of grounding wires are respectively hung at two ends of the cable line according to the requirement of safety work of the power industry so as to protect the personal safety and equipment safety of maintainers. The ground wire is hung as required, three-phase conductors at two ends of a power cable line are in short circuit and are grounded, namely a safety protection area is artificially arranged, and the safety of all workers can be ensured as long as the workers work in the safety protection area.
When detecting an accident of a buried power cable line, a maintainer cannot visually see grounding wires at two ends and the set safety protection range like the maintenance of an overhead line. Therefore, in the whole process of overhaul of the power cable line, the working state of the safety grounding wires at the two ends of the cable line can be intuitively monitored and monitored on line by the maintainers at the overhaul site in the whole process, and the method is particularly important. In the prior art, a universal meter, a megger and other measuring tools are generally used for detecting grounding, but the measuring means cannot determine whether a safety area is always in a grounding state or not, because cable accident maintenance time period is long and the cable accident maintenance time period is all operation on equipment in use, the cable accident maintenance time period is work with voltage once switching on, misoperation is caused, power is sent back, and the like, and personal safety of cable maintenance workers is directly threatened.
Therefore, it is necessary to design a cable maintenance safety detection device.
Disclosure of Invention
The invention provides a cable maintenance safety detection device which is convenient for workers to master the safety state of a grounding safety area in real time, and aims to solve the problem that whether the safety area is always in the grounding state cannot be determined by the conventional grounding detection mode in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cable maintenance safety detection device comprises a shell, a main board and a grounding electrode which are arranged in the shell, a base arranged on the bottom of the grounding electrode, an elastic buckle arranged on the bottom of the base, and electric control stroke actuators respectively arranged at the left end and the right end of the base; every automatically controlled stroke executor bottom all is equipped with the telescopic link, and every telescopic link bottom all is equipped with the backup pad, and mainboard and earthing pole electricity are connected, earthing pole and base fixed connection, and the mainboard includes pilot lamp circuit and auxiliary circuit, and auxiliary circuit is connected with the pilot lamp circuit electricity, is equipped with first controller in the base, and each automatically controlled stroke executor all is connected with first controller electricity.
The main board is provided with a power supply, the elastic buckle at the bottom of the base is used for enhancing the fixing effect of the grounding safety protection device on cable armor, the electric control stroke actuator is used for controlling the telescopic rod to stretch, the electric control stroke actuator, the telescopic rod and the supporting plate enhance the stability of the grounding safety protection device in grounding safety detection, and the indicating lamp circuit is used for indicating the safety state of a grounding safety area. The invention has the characteristics of facilitating the working personnel to master the safety state of the grounding safety area in real time and enhancing the stability of grounding safety detection.
Preferably, the inner wall of the elastic buckle is provided with a pressure sensor which is electrically connected with the first controller. When the elastic buckle buckles the armor of the cable and the pressure sensor detects that pressure is generated, the first controller controls each electric control stroke actuator to start working.
Preferably, the indicating lamp circuit comprises a light emitting diode D and a wiring port K, wherein a cathode of the light emitting diode D is electrically connected with one end of the wiring port K, the other end of the wiring port K is electrically connected with the auxiliary circuit, and an anode of the light emitting diode D is electrically connected with the auxiliary circuit. The wiring port K is used for leading out a detection wiring head, and safety detection of a grounding safety area is facilitated.
Preferably, the auxiliary circuit comprises a second controller, a photosensitive sensor, a buzzer, a current limiting circuit, a follow current inductor L, a switching circuit and a NOT gate circuit; the second controller is electrically connected with the photosensitive sensor, one end of the buzzer is grounded, the other end of the buzzer is connected to one end of the current limiting circuit, the other end of the current limiting circuit is connected to one end of the follow current inductor L, the other end of the follow current inductor L is connected to one end of the switch circuit, the other end of the switch circuit is connected to the controller, the control end of the switch circuit is connected to the output end of the NOT gate circuit, and the input end of the NOT gate circuit is connected to the second controller.
Preferably, each backup pad side round all is equipped with the gasbag, all is equipped with the air duct on every gasbag, all is equipped with gas generator on every air duct, and every gas generator all is located the base, and each gas generator all is connected with first controller electricity. The air bags on the lateral sides of the supporting plate are used for enhancing the stability of the supporting plate when the supporting plate falls on the ground, so that the phenomenon that the air bags move left and right when the safety detection of a grounding safety area is carried out is avoided.
Preferably, the base is trapezoidal in cross section, a conductor is arranged on the bottom surface of the base, the cross section of the conductor is inverted U-shaped, and the grounding electrode is electrically connected with the conductor through a lead.
Therefore, the invention has the following beneficial effects: (1) the safety state of the grounding safety area can be conveniently mastered by workers in real time; (2) the stability of grounding safety detection is enhanced; (3) the labor cost is saved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a circuit diagram of the present invention.
In the figure: the device comprises a shell 1, a mainboard 2, a grounding electrode 3, a base 4, an elastic buckle 5, an indicator light circuit 6, an auxiliary circuit 7, a conductor 8, an electric control stroke actuator 9, an expansion link 10 and a support plate 11.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings:
the cable maintenance safety detection device shown in fig. 1 comprises a shell 1, a mainboard 2 and a grounding electrode 3 which are arranged in the shell, a base 4 arranged on the bottom of the grounding electrode, an elastic buckle 5 arranged on the bottom of the base, and electric control stroke actuators 9 respectively arranged at the left end and the right end of the base; every automatically controlled stroke executor bottom all is equipped with telescopic link 10, and every telescopic link bottom all is equipped with backup pad 11, and mainboard and earthing electrode electricity are connected, earthing electrode and base fixed connection, and the mainboard includes pilot lamp circuit 6 and auxiliary circuit 7, and auxiliary circuit is connected with the pilot lamp circuit electricity, is equipped with first controller in the base, and each automatically controlled stroke executor all is connected with first controller electricity.
The inner wall of the elastic buckle is provided with a pressure sensor which is electrically connected with the first controller. When the elastic buckle buckles the armor of the cable and the pressure sensor detects that pressure is generated, the first controller controls each electric control stroke actuator to start working.
As shown in fig. 2, the indicator light circuit includes a light emitting diode D and a wiring port K, a negative electrode of the light emitting diode D is electrically connected to one end of the wiring port K, another end of the wiring port K is electrically connected to the auxiliary circuit, and a positive electrode of the light emitting diode D is electrically connected to the auxiliary circuit. The wiring port K is used for leading out a detection wiring head, and safety detection of a grounding safety area is facilitated.
The auxiliary circuit comprises a second controller, a photosensitive sensor, a buzzer, a current limiting circuit, a follow current inductor L, a switching circuit and a NOT gate circuit; the second controller is electrically connected with the photosensitive sensor, one end of the buzzer is grounded, the other end of the buzzer is connected to one end of the current limiting circuit, the other end of the current limiting circuit is connected to one end of the follow current inductor L, the other end of the follow current inductor L is connected to one end of the switch circuit, the other end of the switch circuit is connected to the controller, the control end of the switch circuit is connected to the output end of the NOT gate circuit, and the input end of the NOT gate circuit is connected to the second controller. The current limiting circuit shown in fig. 2 includes a resistor R8, a resistor R9, a resistor R10, and an NPN-type transistor Q2; the switch circuit comprises a resistor R6, a resistor R7 and a PNP type triode Q3.
In addition, each backup pad side round all is equipped with the gasbag, all is equipped with the air duct on every gasbag, all is equipped with gas generator on every air duct, and every gas generator all is located the base, and each gas generator all is connected with first controller electricity. The air bags on the lateral sides of the supporting plate are used for enhancing the stability of the supporting plate when the supporting plate falls on the ground, so that the phenomenon that the air bags move left and right when the safety detection of a grounding safety area is carried out is avoided.
The cross section of the base is trapezoidal, the bottom surface of the base is provided with a conductor, the cross section of the conductor is in an inverted U shape, and the grounding electrode is electrically connected with the conductor through a lead.
The working mode of the invention is as follows:
the elastic buckle of the base is utilized to fix the cable sheath, and when a pressure sensor on the inner wall of the elastic buckle detects that a pressure value is generated, the first controller controls each electric control stroke actuator to start working, and the electric control stroke actuators control the telescopic rod to stretch, so that a supporting rod at the bottom of the telescopic rod can be in contact with the ground; when the electric control stroke actuator controls the telescopic rod to stretch, the first controller controls each gas generating device to start working, and the gas guide pipe inflates the gas bag arranged on one circle of the side surface of the supporting plate to enhance the stability of the supporting plate when the supporting plate falls on the ground, so that the phenomenon that the supporting plate moves left and right when the ground safety area is safely detected is avoided.
In addition, a detection connector lug is led out from the connector lug K and is electrically connected with a lead led out from one end of the cable, the armor of the cable and the lead at the other end of the cable are grounded, if the light-emitting diode D emits light, the safety of a working area is indicated, if the light-emitting diode D is extinguished, the disconnection of a grounding circuit occurs in the working area, meanwhile, the photosensitive sensor transmits brightness change information detected in the shell to the second controller, and the second controller controls the buzzer to make a sound to remind a worker of leaving the working area immediately.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (4)
1. A cable maintenance safety detection device is characterized by comprising a shell (1), a mainboard (2) and a grounding electrode (3) which are arranged in the shell, a base (4) arranged on the bottom of the grounding electrode, an elastic buckle (5) arranged on the bottom of the base, and electric control stroke actuators (9) respectively arranged at the left end and the right end of the base; the bottom of each electric control stroke actuator is provided with a telescopic rod (10), and the bottom of each telescopic rod is provided with a supporting plate (11); the side surface of each supporting plate is provided with an air bag in a circle, each air bag is provided with an air duct, and each air duct is provided with a gas generating device; the main board is electrically connected with the grounding electrode, the grounding electrode is fixedly connected with the base, the main board comprises an indicator light circuit (6) and an auxiliary circuit (7), the auxiliary circuit is electrically connected with the indicator light circuit, a first controller is arranged in the base, and each electric control stroke actuator is electrically connected with the first controller; each gas generating device is positioned in the base and is electrically connected with the first controller; the inner wall of the elastic buckle is provided with a pressure sensor which is electrically connected with the first controller.
2. The cable repair safety detecting apparatus according to claim 1, wherein the indicator circuit includes a light emitting diode D and a wiring port K, a cathode of the light emitting diode D is electrically connected to one end of the wiring port K, the other end of the wiring port K is electrically connected to the auxiliary circuit, and an anode of the light emitting diode D is electrically connected to the auxiliary circuit.
3. The cable repair safety detecting apparatus as claimed in claim 1, wherein the auxiliary circuit includes a second controller, a photosensor, a buzzer, a current limiting circuit, a follow current inductor L, a switching circuit and a not gate circuit; the second controller is electrically connected with the photosensitive sensor, one end of the buzzer is grounded, the other end of the buzzer is connected to one end of the current limiting circuit, the other end of the current limiting circuit is connected to one end of the follow current inductor L, the other end of the follow current inductor L is connected to one end of the switch circuit, the other end of the switch circuit is connected to the controller, the control end of the switch circuit is connected to the output end of the NOT gate circuit, and the input end of the NOT gate circuit is connected to the second controller.
4. The cable maintenance safety detecting device according to claim 1, 2 or 3, wherein the base has a trapezoidal cross section, a conductor (8) is provided on the bottom surface of the base, the cross section of the conductor is inverted U-shaped, and the ground electrode is electrically connected to the conductor through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202196.0A CN109470980B (en) | 2018-03-12 | 2018-03-12 | Cable maintenance safety detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202196.0A CN109470980B (en) | 2018-03-12 | 2018-03-12 | Cable maintenance safety detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109470980A CN109470980A (en) | 2019-03-15 |
| CN109470980B true CN109470980B (en) | 2020-08-18 |
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ID=65659884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810202196.0A Active CN109470980B (en) | 2018-03-12 | 2018-03-12 | Cable maintenance safety detection device |
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| Country | Link |
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| CN (1) | CN109470980B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201035699Y (en) * | 2006-08-03 | 2008-03-12 | 施胜华 | Power cable maintenance safe area online monitoring circuit and the produced alarm device thereof |
| CN204964668U (en) * | 2015-09-17 | 2016-01-13 | 国家电网公司 | Detection device is assisted to cable inspection earthing state |
| CN205452959U (en) * | 2016-03-29 | 2016-08-10 | 国家电网公司 | Hand -held type communication cable overhauls device |
| CN206863162U (en) * | 2017-07-07 | 2018-01-09 | 国家电网公司 | A kind of console mode communication cable safety overhauling device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011164079A (en) * | 2010-02-12 | 2011-08-25 | Univ Of Ryukyus | Ground fault detection system, monorail safety operation system, and electric train safety operation system with rail contacting ground |
| CN201828671U (en) * | 2010-03-08 | 2011-05-11 | 胡晓剑 | Cable identifying probe |
| JP6224904B2 (en) * | 2013-03-29 | 2017-11-01 | 三菱航空機株式会社 | Wiring safety analysis system |
| CN204086422U (en) * | 2014-11-10 | 2015-01-07 | 国家电网公司 | Power failure cable detection identification device |
| CN204947474U (en) * | 2015-10-08 | 2016-01-06 | 国网山东海阳市供电公司 | A kind of electric power cable bracing or strutting arrangement |
| CN206057478U (en) * | 2016-08-24 | 2017-03-29 | 金英花 | A kind of contactless earth detector of high tension cable |
| CN106526411A (en) * | 2016-09-12 | 2017-03-22 | 国网浙江省电力公司文成县供电公司 | Auxiliary device for searching power distribution network grounding fault |
-
2018
- 2018-03-12 CN CN201810202196.0A patent/CN109470980B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201035699Y (en) * | 2006-08-03 | 2008-03-12 | 施胜华 | Power cable maintenance safe area online monitoring circuit and the produced alarm device thereof |
| CN204964668U (en) * | 2015-09-17 | 2016-01-13 | 国家电网公司 | Detection device is assisted to cable inspection earthing state |
| CN205452959U (en) * | 2016-03-29 | 2016-08-10 | 国家电网公司 | Hand -held type communication cable overhauls device |
| CN206863162U (en) * | 2017-07-07 | 2018-01-09 | 国家电网公司 | A kind of console mode communication cable safety overhauling device |
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| Publication number | Publication date |
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| CN109470980A (en) | 2019-03-15 |
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