CN112213668A

CN112213668A - Portable electrified identification device of cable of skinning

Info

Publication number: CN112213668A
Application number: CN202011053133.7A
Authority: CN
Inventors: 杨帆; 方健; 王红斌; 尹旷; 何嘉兴; 孙奇珍; 陈申宇; 代晓丰; 伍尚显
Original assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-01-12

Abstract

The application discloses portable electrified appraisal device of cable of skinning includes: a transmitter, a transmitting component, a receiver and a receiving clamp; the transmitting component is in communication connection with the transmitter; the transmitter is used for loading excitation signals to the cable to be identified through the transmitting assembly; the receiving clamp is detachably clamped on the cable to be identified and is in communication connection with the receiver; the receiver is used for receiving and identifying the state data of the cable to be identified loaded with the excitation signal through the receiving pliers so as to judge whether the cable to be identified is a stripped cable. Through such design, can realize inquiring whether the cable is skinned fast, the location is skinned some, in time discovers the problem and gets rid of the incident hidden danger. Moreover, the whole body is convenient to disassemble and assemble, and the portability is good.

Description

Portable electrified identification device of cable of skinning

Technical Field

The application relates to the technical field of cable identification, in particular to a portable electrified identification device for a peeled cable.

Background

The stripped cable is a three-core cable which enables an outer sheath, armor and copper shield of the stripped cable to be stolen and cut, and in recent years, tripping and accidents of a cable line caused by the stripped cable, even fire accidents of a pipe gallery emerge endlessly, so that huge economic losses are caused to a power supply department.

The cables currently used are three-core cables of, for example, 10kVYJV22 or ZRYJV22 type. For a three-core cable in normal operation, the high voltage of a cable core conductor belt is high, the stealing and cutting risk is high, the induction voltage on an armor layer (steel belt) and a metal shielding layer (copper belt) is low, the stealing and cutting risk is low, the operation is easy, and the concealment is high, so that the three-core cable becomes a main target of stealing and cutting. The thief strips the oversheath, armor and the metallic shield layer of cable, remains the insulating layer, and the heart yearn keeps the intercommunication for the cable continues the power supply under the dangerous condition that lacks outer protection. The insulating layer of the peeled cable is directly exposed to the underground complex environment and is easily affected by external extrusion, water immersion, chemical corrosion, temperature, humidity and friction, so that the insulation is further damaged, and the service life of the cable is shortened. In the stealing and cutting process, the insulating layer of part of the cable is slightly damaged, and insulation breakdown, interphase short circuit fault and even cable duct fire can occur at any time. Therefore, it is necessary to perform comprehensive renovation work on the stripped cable.

Disclosure of Invention

In view of this, the purpose of this application is to provide a portable electrified appraisal device of cable of skinning, can realize fast investigation cable and whether be skinned, location skinning point, in time discover the problem and get rid of the potential safety accident hazard.

In order to achieve the above technical object, the present application provides a portable stripped cable hot-line identification device, including: a transmitter, a transmitting component, a receiver and a receiving clamp;

the transmitting component is in communication connection with the transmitter;

the transmitter is used for loading an excitation signal to the cable to be authenticated through the transmitting assembly;

the receiving clamp is detachably clamped on the cable to be authenticated and is in communication connection with the receiver;

the receiver is used for receiving and identifying the state data of the cable to be identified loaded with the excitation signal through the receiving pliers so as to judge whether the cable to be identified is a stripped cable.

Further, the transmitter comprises a first chassis, a first power module, a first control panel and a first signal processing module;

the first power module, the first control module and the first signal processing module are all installed in the first case, and the first power module is respectively used for supplying power to the first control module, the first control panel and the first signal processing module;

the first control panel is embedded in a front cover plate of the first case and is in communication connection with the first control module;

the first control module is in communication connection with the transmitting assembly through the first signal processing module.

Further, the transmitter further comprises a first wireless communication module;

the first wireless communication module is in communication connection with the first control module.

Furthermore, the launching assembly is specifically launching tongs, and the detachable tongs are clamped on the cable to be identified;

the launching forceps comprise two half forceps jaws and a launching forceps lead;

the two half jaws are hinged in a crossed manner and respectively comprise a jaw part and a handle part;

the handle parts are integrally connected with the jaw parts, and the two handle parts are hinged and connected and used for controlling the opening and closing of the two jaw parts;

one end of the lead of the emission clamp is connected with one half clamp, and the other end of the lead of the emission clamp is connected with the emitter.

Further, the outer surface of the transmitting forceps is provided with a first indicating arrow for indicating the signal direction.

Furthermore, the receiver comprises a second chassis, a second power module, a second control module, a voltage acquisition module, a second control panel and a second signal processing module;

the second power module, the second control module, the voltage acquisition module and the second signal processing module are all installed in the second case, and the second power module is respectively used for supplying power to the second control module, the second control panel, the voltage acquisition module and the second signal processing module;

the second control panel is embedded in a front cover plate of the second case and is in communication connection with the second control module;

the second control module is in communication connection with the receiving clamp through the second signal processing module;

the voltage acquisition module is in communication connection with the second control module.

Further, the receiver further comprises a second wireless communication module;

the receiver is wirelessly connected with the transmitter through the second wireless communication module and is used for controlling the transmitter to transmit signals.

Further, the receiving clamp is one of a receiving flexible current clamp, a receiving flexible flat clamp and a Y-shaped receiving clamp.

Further, the receiving forceps are particularly receiving flexible flat forceps.

Further, the receiving forceps are specifically receiving flexible flat forceps;

the receiving flexible flat tongs comprise a framework, a coil, a shielding layer, an outer insulating layer and a coil lead;

the framework is in a flexible strip-shaped structure, and two ends of the framework are detachably connected;

the coil is wound outside the framework;

the shielding layer covers the coil;

the outer insulating layer is coated outside the shielding layer;

one end of the coil lead is connected with the coil.

According to the technical scheme, the transmitter loads the excitation signal to the cable to be identified through the transmitting assembly. The arranged receiver receives and identifies the state data of the cable to be identified loaded with the excitation signal through the receiving pliers, and then judges whether the cable to be identified is a stripped cable or not according to the identified state data. Through such design, can realize inquiring whether the cable is skinned fast, the location is skinned some, in time discovers the problem and gets rid of the incident hidden danger. And the structure is convenient to disassemble and assemble and good in portability.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic view of a first application structure of a portable stripped cable hot-line identification device provided in the present application;

fig. 2 is a schematic view of a structure of a portable stripped cable hot-line identification device provided in the present application, in which a transmitter and a pair of transmission tongs are cooperatively used;

fig. 3 is a schematic flow chart of a matching process between a transmitter and a transmitting clamp of the portable stripped cable electrified identification device provided in the present application;

fig. 4 is a schematic diagram of a first axial side structure of a transmitter of a portable stripped cable hot-line identification device provided in the present application;

FIG. 5 is a schematic second axial side view of a portable stripped cable hot line identification device transmitter provided herein;

FIG. 6 is a portable stripped cable hot line identification apparatus provided herein;

fig. 7 is a schematic structural view illustrating a matching application of a receiver of the portable stripped cable electrified identification device and a flexible receiving flat clamp provided in the present application;

fig. 8 is a schematic flow chart of a portable stripped cable hot-line identification device receiver and a flexible receiving flat clamp provided in the present application;

fig. 9 is a schematic diagram of a first axial side structure of a receiver of a portable stripped cable hot-line identification device provided in the present application;

FIG. 10 is a schematic second axial side view of a portable stripped cable hot line evaluation device receiver provided in the present application;

fig. 11 is a schematic view of a second application of a portable stripped cable hot-line identification device provided in the present application;

fig. 12 is a schematic view of a third application of a portable stripped cable hot-line identification device provided in the present application;

fig. 13 is a schematic view of a partially broken structure of a flexible receiving flat clamp of the portable stripped cable electrified identification device provided in the present application in an unfolded state;

fig. 14 is a schematic overall structure diagram of a flexible receiving flat clamp in an unfolded state of the portable stripped cable electrified identification device provided by the application;

FIG. 15 is a schematic structural view of a flexible receiving flat clamp of the portable stripped cable hot-line identification device provided in the present application in an unfolded state without an outer insulating layer and a shielding layer;

FIG. 16 is a structural schematic view of the self-rolling state of FIG. 15;

in the figure: 100. a launch tong; 101. half-clamping; 102. a clamping portion; 103. a handle portion; 104. a firing tong lead; 105. an aviation plug; 106. a first indication arrow; 200. a transmitter; 201. a first chassis; 202. a first power supply module; 203. a first control module; 204. a first filter shaping module; 205. a first signal amplification module; 206. a first panel body; 207. a first display module; 208. a first power switch; 209. a coupling method socket; 210. a direct connection method socket; 211. a first charging interface; 212. a first operation module; (213/316), 433MHz radio; (214/317), a GPRS network module; 300. a receiver; 301. a second chassis; 302. a second power supply module; 303. a second control module; 304. a voltage acquisition module; 305. a second signal amplification module; 306. a second filter shaping module; 307. a waveform separation module; 308. an AD conversion module; 309. a second panel body; 310. a second operation module; 311. a second display module; 312. a receiving socket; 313. a second charging interface; 314. an operation button; 315. a second power switch; 400. flexibly receiving flat tongs; 401. a framework; 402. a coil; 403. a shielding layer; 404. an outer insulating layer; 405. a coil lead; 406. a bump; 407. a concave block; 408. a magnet bar; 409. a sheet of iron alloy; 410. a BNC plug; 411. a second indication arrow; 500. a cable to be identified; 600. a Y-shaped receiving forceps; 601. a telescopic insulating rod; 700. a flexible receiving current clamp.

Detailed Description

The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The embodiment of the application discloses portable electrified appraisal device of cable of skinning.

Referring to fig. 1, an embodiment of a portable stripped cable hot-line identification apparatus provided in an embodiment of the present application includes:

transmitter 200, transmit components, receiver 300, and receive fingers; the transmitting component is in communication connection with the transmitter 200; the transmitter 200 is used for loading an excitation signal to the cable 500 to be authenticated through the transmitting component; the receiving clamp is detachably clamped on the cable 500 to be identified and is in communication connection with the receiver 300; the receiver 300 is configured to receive and recognize the status data loaded with the excitation signal through the receiving clamp to determine whether the cable 500 to be authenticated is a stripped cable.

As can be seen from the above technical solutions, the transmitter 200 of the present application loads the excitation signal to the cable 500 to be authenticated through the transmitting component. The receiver 300 is configured to receive and recognize the state of the cable 500 to be authenticated loaded with the excitation signal through the receiving clamp, and then determine whether the cable 500 to be authenticated is a stripped cable according to the recognized state data. Through such design, can realize inquiring whether the cable is skinned fast, the location is skinned some, in time discovers the problem and gets rid of the incident hidden danger. The state data may include, for example, signal frequency, current amplitude, current direction, loop resistance value, and composite pulse phase, and the data is comprehensively analyzed to determine more accurately. In addition, the structure is convenient to disassemble and assemble and good in portability.

The above is a first embodiment of the portable stripped cable electrification identifying device provided in the embodiments of the present application, and the following is a second embodiment of the portable stripped cable electrification identifying device provided in the embodiments of the present application, specifically please refer to fig. 1 to 16.

A portable stripped cable hot-line identification device comprising: transmitter 200, transmit components, receiver 300, and receive fingers; the transmitting component is in communication connection with the transmitter 200; the transmitter 200 is used for loading an excitation signal to the cable 500 to be authenticated through the transmitting component; the receiving clamp is detachably clamped on the cable 500 to be identified and is in communication connection with the receiver 300; the receiver 300 is configured to receive and recognize the status data loaded with the excitation signal through the receiving clamp to determine whether the cable 500 to be authenticated is a stripped cable.

Further, as shown in fig. 2 to fig. 6, the transmitter 200 may include a first chassis 201, a first power module 202, a first control module 203, a first control panel, and a first signal processing module; the first power module 202, the first control module 203 and the first signal processing module are all installed in the first chassis 201, and the first power module 202 is used for supplying power to the first control module 203, the first control panel and the first signal processing module respectively; the first control panel is embedded in a front cover plate of the first case 201 and is in communication connection with the first control module 203; the first control module 203 is in communication connection with the transmitting assembly through the first signal processing module.

Specifically, as shown in fig. 4, the first housing 201 may be a square housing structure, or may be a housing structure of other shapes, and polypropylene plastic may be used as a raw material, and a novel composite filler is added to perform injection molding once, so that the first housing 201 has low density, high strength, high rigidity, high hardness, high wear resistance, high heat resistance, and high insulating property, and can bear a pressure of about 200kg, without limitation. The first power module 202 may be a conventional rechargeable lithium battery. The first control module 203 may be a conventional microprocessor or a PLC control board, etc., and is not limited in particular. The first signal processing module may specifically include a first filter-shaping module 204 and a first signal amplifying module 205; the first filter shaping module 204 is configured to shape the signal output by the first control module 203; the first signal amplifying module 205 is configured to amplify the shaped signal. The first filter shaping module 204 and the first signal amplifying module 205 may be integrally mounted on the first control module 203, and are not limited in particular.

Further, as shown in fig. 4, the first control panel may include a first panel main body 206, a first manipulation module 212, and a first display module 207; the first operation module 212 and the first display module 207 are both in communication connection with the first control module 203; the first operating module 212 is mounted on the first panel body 206 and includes a first power switch 208, a coupling socket 209, a direct connection socket 210, and a first charging interface 211; the first display module 207 is fitted in the first panel body 206.

Specifically, the front cover plate may be used as the first panel body 206, and the front cover plate may be provided with a corresponding mounting opening. The corresponding first power switch 208, the coupling socket 209 and the direct-connection socket 210 may be correspondingly disposed on the corresponding mounting ports. The coupling method socket 209 and the direct connection method socket 210 can provide connection transmission component selection, and therefore different interface connections can be selected for use according to actual identification requirements. The coupling socket 209 may be an aviation socket, and when the transmitting component is specifically the transmitting tong 100, the transmitting tong 100 may be connected through the coupling socket 209, and the transmitter 200 may send a preset variety of frequency signals, specifically, four frequency signals, for example, 625Hz, 1562Hz, 2500Hz, and 10kHz, to the transmitting tong 100 in a cyclic sweep frequency manner, so that the combination of low-frequency long-distance transmission and high-frequency short-distance transmission is realized, the cable 500 to be identified, which has different lengths and different interferences, may be adapted, and the accuracy of identifying whether the cable is peeled is improved.

As shown in fig. 4, the direct connection socket 210 may be composed of a pulse signal emitting positive electrode and a pulse signal emitting negative electrode. As shown in fig. 11, when the transmitter assembly is composed of a test wire and a ground pin, a direct connection socket 210 may be used, and the transmitter 200 may load an excitation signal to the cable 500 to be authenticated through the connection assembly composed of the test wire and the ground pin. Specifically, the positive pole of the direct connection method socket 210 can be connected with the cable 500 to be identified through the test wire, the negative pole of the direct connection method can be connected with one grounding pin through the test wire, the cable 500 to be identified is also connected with another grounding pin through the test wire, so that direct connection is realized, and the transmitter 200 directly loads the direct-current pulse signal for the cable 500 to be identified.

The first display module 207 may be a conventional LCD display screen, and may be used to display battery power/voltage information and frequency information of the transmission signal, without limitation. In addition, the rear cover plate of the first chassis 201 may be fixed by fasteners such as screws, and is not particularly limited.

Further, the transmitter 200 further includes a first wireless communication module; the first wireless communication module is communicatively coupled to the first control module 203. The first wireless communication module may be added with a wireless control means, for example, the transmitter 200 may be wirelessly controlled by a smart terminal such as a mobile phone. The first wireless communication module may include a 433MHz wireless module 213, a 2G/3G/4G/5G GPRS network module 214, or a wireless WiFi module, and the like, which is not limited in particular.

Further, taking the launching assembly, specifically the launching forceps 100 as an example, the detachable forceps are clamped to the cable 500 to be authenticated; firing tong 100 includes two jaw halves 101, and firing tong leads 104; the two half-clamp parts 101 are hinged in a crossed manner and respectively comprise a clamp part 102 and a handle part 103; the handle part 103 is integrally connected with the jaw part 102, and the two handle parts 103 are hinged and connected and used for controlling the opening and closing of the two jaw parts 102; the firing tong leads 104 are connected at one end to one half of the jaws 101 and at the other end to the transmitter 200.

Specifically, the half-clamp 101 may be hinged by a fixing member such as a screw/pin, and a torsion spring may be sleeved on the screw/pin to increase the clamping force, and the specific structure may refer to an existing elastic clamp, such as a clothes peg, without limitation. The emitter clamp lead 104 may be provided with a longer length, for example 5m, for ease of use. One end of which is connected to one half of the jaws 101 and the other end of which is provided with an aviation plug 105 which is in connection fit with a coupling socket 209.

Further, to increase the launch coupling power, the launch clamp 100 may be made of permalloy material, which may be formed with a jaw size of 125 mm. In addition, since the transmitting forceps 100 have directivity, a first indication arrow 106 indicating the inflow direction of the transmitting signal can be marked on the outer surface of the transmitting forceps 100, which is more convenient for use.

Further, as shown in fig. 7 to 10, the receiver 300 may include a second chassis 301, a second power module 302, a second control module 303, a voltage acquisition module 304, a second control panel, and a second signal processing module; the second power module 302, the second control module 303, the voltage acquisition module 304 and the second signal processing module are all installed in the second chassis 301, and the second power module 302 is respectively used for supplying power to the second control module 303, the second control panel, the voltage acquisition module 304 and the second signal processing module; the second control panel is embedded in the front cover plate of the second case 301 and is in communication connection with the second control module 303; the second control module 303 is in communication connection with the receiving clamp through a second signal processing module; the voltage acquisition module 304 is communicatively coupled to the second control module 303.

Specifically, as shown in fig. 9 and 10, the second chassis 301 may be a square box structure, or a box structure with other shapes, or polypropylene plastic may be used as a raw material, and a novel composite filler is added to perform injection molding at one time, so that the density is low, and the strength, the rigidity, the hardness, the wear resistance, the heat resistance, and the insulation performance are more excellent, without any limitation. The second signal processing module may specifically include a second signal amplifying module 305, a second filter shaping module 306, a waveform separating module 307, and an AD converting module 308; the second signal amplification module 305 is configured to amplify a signal received by the receiving clamp; the second filter shaping module 306 is configured to shape the amplified signal; the waveform separation module 307 is used for separating the shaped signals; the AD conversion module 308 is configured to convert the separated signals, and finally send the converted signals to the second control module 303 for analysis. The voltage acquisition module 304 may be configured to cooperate with the receiving clamp to acquire information such as voltage, and is configured to provide data analysis basis such as current amplitude. The second power module 302 may be a conventional lithium battery, and is not particularly limited. The second control module 303 may be a conventional microprocessor, a PLC control board, etc., and is not limited in particular.

Further, the second control panel includes a second panel main body 309, a second operation module 310, and a second display module 311; the second operation module 310 and the second display module 311 are both in communication connection with the second control module 303; the second panel body 309 is mounted to the front cover of the second chassis 301; the second operation module 310 includes a receiving socket 312, a second charging interface 313, an operation button 314, and a second power switch 315; the receiving socket 312 and the second charging interface 313 are disposed on the top of the second housing 301; the second display module 311 is disposed on the second panel body 309; the operation button 314 and the power switch are disposed below the second panel body 309 and the second display module 311.

Specifically, the front cover may be used as the second panel body 309 as it is, and a corresponding mounting opening may be formed in the front cover as it is. The corresponding second power switch 315, the receiving socket 312 and the second charging interface 313 may be correspondingly disposed on the corresponding mounting interfaces. The receiving socket 312 is used for connecting a receiving clamp, and may specifically be an aerial socket that mates with the receiving clamp. The second display module 311 may be a conventional LCD display screen, and may be configured to display information on whether the cable 500 to be authenticated is normal, current information, signal frequency information, a serial number of the cable 500 to be authenticated, and the like, which is not limited specifically. The operating button 314 may be used to select a different number of cables 500 to be authenticated for authentication. The back cover of the receiver 300 may be mounted to the second housing 301 by fasteners such as screws.

Further, the receiver 300 further includes a second wireless communication module; the receiver 300 is wirelessly connected with the transmitter 200 through a second wireless communication module, and is used for controlling the transmitter 200 to transmit signals.

Specifically, the second wireless communication module may be added with a wireless control means, for example, the receiver 300 may be wirelessly controlled by a smart terminal such as a mobile phone. The second wireless communication module may include a 433MHz wireless module 316, a 2G/3G/4G/5G GPRS network module 317, or a wireless WiFi module, and the like, which is not limited specifically. In this embodiment, the second wireless communication module is connected to the first wireless communication module in a communication manner, so that the receiver 300 can wirelessly control the transmitter 200. The receiver 300 in the application has the functions of identifying peeling and testing voltage, current and frequency, the range of the tested voltage can be AC 0.00V-600V (50Hz/60Hz), the range of the tested alternating current can be AC0.00A-5000A (50Hz/60Hz), and the frequency of the tested current can be 45 Hz-70 Hz.

The control process is, for example, as follows, the transmitter 200 first turns on the power supply, waiting for a transmission signal; the receiver 300 is turned on, and the receiver 300 first detects an interference signal of the cable 500 to be identified (the interference signal mainly includes unbalanced current, harmonic, interference frequency, and the like, and the interference signal); after the detection is completed, the receiver 300 adaptively determines how to process the interference signal; and then, sending an instruction through a 433MHz wireless communication module to inform the transmitter 200 of starting to send a signal, taking the example that the socket 209 is connected with the transmitting signal by the coupling method of the transmitter 200, the transmitter 200 circularly sweeps frequency to send signals with four frequencies of 625Hz, 1562Hz, 2500Hz and 10kHz, the receiver 300 sequentially receives and judges the signals and gives an analysis result, and if the frequency sweeping detection of the 4 frequencies is finished, the receiver 300 sends an instruction to the transmitter 200 to inform the device of stopping sending the signal.

The judgment principle is as follows:

the coupling socket 209 loads the signal: the armor of the cable 500 to be identified and the three-phase copper shield are simultaneously injected with a composite pulse signal. If the armor or the copper shield can form a loop, the comprehensive resistance value which comprises the resistance value of the metal conductor and the sum of the grounding resistance values formed by the armor grounding of the two ends of the cable 500 to be identified is detected, if the comprehensive resistance value is smaller, the armor grounding of the cable is good, the copper braid and the copper shield layer are intact, and the receiver 300 judges that the cable 500 to be identified is a normal cable which is not peeled; if the armor and the copper shield of the cable 500 to be identified have faults, the resistance value of the comprehensive loop is large, if the armoring at the two ends of the cable is well grounded, the copper braid or the copper shield layer in the middle of the cable is broken, the cable is judged to be stripped, and the stripping position is also positioned.

The direct connection method socket 210 loads a direct current pulse signal: the negative end of the direct current method interface is grounded, the positive end loads a signal to a copper braid or a copper shielding layer of the cable through a test wire clamp, the receiver 300 is connected with a receiving clamp and then receives and identifies, and the judgment basis can be judged according to the resistance value of the comprehensive loop. And will not be described in detail.

In order to improve the identification accuracy and reduce the misjudgment, the method can calibrate various signals such as 10 signals for the same cable, and then analyze and compare the signals. That is, the combination makes the transmitter 200 send different frequency and different gain signals to the cable 500 to be identified, the receiver 300 calibrates and stores these combined signals, and then performs actual measurement comparison and analysis to give a judgment result, so as to reduce the misjudgment.

Further, as shown in fig. 12, the receiving forceps body may be one of a flexible receiving current forceps 700, a flexible receiving flat forceps 400, and a Y-shaped receiving forceps 600. The flexible current clamp 700, which may be a rogowski coil 402, has excellent transient tracking capability, is used in conjunction with the receiver 300, can quickly identify the pulse-coded excitation current generated by the transmitter 200, and is suitable for thick cables or irregularly shaped conductors. The Y-shaped receiving clamp 600, as the name suggests, is a current clamp of a Y-shaped structure, can be made of permalloy material with high magnetic permeability, and is designed to connect with the telescopic insulating rod 601, wherein for convenient operation, the receiver 300 can be integrated with the current clamp of the Y-shaped structure, and then connected with the telescopic insulating rod 601, and can be operated on a wellhead, an operator does not need to go into a cable trench or a cable well, the receiving clamp different from a closed type is to completely close and clamp a tested cable, and the rough judgment and the peeling point positioning identification are very convenient, and when a closed loop is not formed due to the defect, the received signal is weaker. The skilled person can select an appropriate type of receiving clamp to use according to the actual application requirement, and the invention is not limited in particular.

Further, as shown in fig. 13 to 16, taking the receiving forceps body as a flexible receiving flat forceps 400 as an example; flexible receiving flat clamp 400 may include a backbone 401, a coil 402, a shield 403, an outer insulation 404, and coil leads 405; the framework 401 is of a flexible strip-shaped structure, and two ends of the framework are detachably connected; the coil 402 is wound outside the framework 401; the shielding layer 403 is wrapped outside the coil 402; the outer insulating layer 404 is wrapped outside the shielding layer 403; the coil lead 405 is connected at one end to the coil 402.

Specifically, the coil 402, the shielding layer 403 and the outer insulating layer 404 are sequentially arranged on the framework 401, wherein the framework 401 is flexible and has a strip-shaped structure, and can be integrally rolled to form a ferrule by combining the detachable connection effect between two ends of the framework, and can be sleeved outside a cable to be identified to receive signals. Due to the design, the installation and the disassembly are more flexible, the whole thickness is conveniently thinned, the cable 500 can be relatively tightly close to the cable to be identified through narrow gaps in a better adaptation mode, and the applicability is improved. When the cable identification device is used, the whole structure can be unfolded firstly, then the cable identification device penetrates through the gap between the adjacent cables 500 to be identified, and then the cable identification device is sleeved on the corresponding cable 500 to be identified in a self-rolling manner.

Further, skeleton 401's one end is equipped with first joint, and the other end is equipped with and connects the second of dismantling the connection with first joint. The detachable connection cooperation of the two ends is realized by respectively arranging a first joint and a second joint at the two ends of the framework 401.

Specifically, the first connector may include a bump 406; the bump 406 is arranged at one end of the framework 401; the second connector may include a female block 407; the concave block 407 is mounted at the other end of the frame 401, and the convex portion of the convex block 406 is movably inserted into the concave block. The external convex part of the convex block 406 and the internal concave part of the concave block 407 can be in interference insertion fit, and a certain external force is required to be applied to separate the connection between the convex block 406 and the concave block 407 during disassembly.

Of course, the protrusion 406 and the concave block 407 may also be magnetically engaged, and when the male portion of the protrusion 406 is engaged with the female portion of the concave block 407, the protrusion 406 and the concave block 407 are magnetically engaged.

Specifically, the first joint may include a magnet bar 408; the magnet bar 408 is clamped on the outer convex part of the convex block 406; the second joint may include a sheet of ferrous alloy 409; the iron alloy sheet 409 is embedded in the concave part of the concave block 407, so that magnetic attraction matching is realized. Those skilled in the art can make appropriate changes based on the above without limitation. The protrusion 406 and the concave block 407 may be formed by injection molding ABS plastic, and the magnet bar 408 and the iron alloy sheet 409 may be integrally injection molded on the protrusion 406 and the concave block 407, respectively.

Further, the coil lead 405 is embodied as a three-core shield wire, and may be of an appropriate length, for example, 5m, as needed. The coil leads 405 may be connected to the coil 402 at one end and may be connected to a BNC plug 410 that mates with the receiving receptacle 312 at the other end.

Further, in order to further enhance the shielding effect, the shielding layer 403 may be composed of a plurality of nickel-plated shielding films. Specifically, the nickel-plated shield layer 403 may preferably be three layers.

Further, a second indication arrow 411 for indicating the signal direction is disposed on the outer surface of the outer insulation layer 404. The number of arrows is not limited, and preferably three, and a second indication arrow 411 is provided to facilitate on-site inspection.

Further, the skeleton 401 and the outer insulating layer 404 are both made of silica gel material. The skeleton 401 and the outer insulating layer 404 may be injection molded, with sufficient flexibility and high moldability.

The specific application of the flexible receiving flat clamp 400 in this application can be, for example, as follows, the inner diameter of the ferrule formed by integral self-rolling can be designed to be kept at 200mm, the length after being unfolded can be 650mm, and the integral thickness can be 5 mm. The width of the coil 402 may be preferably 30mm, which may better improve the strength of the received signal, thereby better balancing the overall volume. The width of the coil 402 can be increased to increase the strength of the received signal while maintaining the thickness. The overall thickness of 5mm can be divided into the thickness of 1.5mm of the framework 401, the thickness of 1.5mm of the coil 402+ the shielding layer 403 and the thickness of 2mm of the outer insulating layer 404. The coil 402 may be wound with 0.15mm high temperature enameled wire, and wound uniformly around the entire bobbin 401. Those skilled in the art can make appropriate adjustments according to the above schemes, and do not specifically limit.

While the portable stripped cable hot-line identification apparatus provided in the present application has been described in detail, those skilled in the art will appreciate that the present disclosure is not limited thereto, and that the present disclosure may be modified in various embodiments and applications according to the concepts of the present application.

Claims

1. A portable electrified appraisal device of cable of skinning, its characterized in that includes: a transmitter, a transmitting component, a receiver and a receiving clamp;

the transmitting component is in communication connection with the transmitter;

2. The portable stripped cable hot line identification device of claim 1, wherein the transmitter comprises a first chassis, a first power module, a first control panel, and a first signal processing module;

3. The portable stripped cable hot line identification device of claim 2 wherein the transmitter further comprises a first wireless communication module;

4. The portable electrified stripped cable identification device of claim 1, wherein the launching assembly is a launching tong, and the launching tong is detachably clamped on a cable to be identified;

5. The portable stripped cable hot line identification device of claim 4, wherein the outer surface of the emission clamp is provided with a first indication arrow for indicating the signal direction.

6. The portable stripped cable electrified appraisal device of claim 1, wherein the receiver comprises a second case, a second power module, a second control module, a voltage acquisition module, a second control panel and a second signal processing module;

7. The portable stripped cable hot line identification device of claim 6, wherein the receiver further comprises a second wireless communication module;

8. The portable stripped cable hot line identification device of claim 7 wherein the receiving clamp is one of a receiving flexible current clamp, a receiving flexible flat clamp and a Y-shaped receiving clamp.

9. The portable stripped cable hot line identification device of claim 8, wherein the receiving clamp is a flexible receiving flat clamp.

10. The portable stripped cable hot line identification device of claim 9 wherein the receiving flexible flat clamp comprises a frame, a coil, a shielding layer, an outer insulating layer and a coil lead;

the coil is wound outside the framework;

the shielding layer covers the coil;

the outer insulating layer is coated outside the shielding layer;

one end of the coil lead is connected with the coil.