CN112731195A - Sample power detection mechanism for outdoor emergency power supply research and development - Google Patents

Sample power detection mechanism for outdoor emergency power supply research and development Download PDF

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Publication number
CN112731195A
CN112731195A CN202011596745.0A CN202011596745A CN112731195A CN 112731195 A CN112731195 A CN 112731195A CN 202011596745 A CN202011596745 A CN 202011596745A CN 112731195 A CN112731195 A CN 112731195A
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CN
China
Prior art keywords
detection mechanism
power detection
power supply
outdoor emergency
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011596745.0A
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Chinese (zh)
Inventor
卫爱静
卫金贵
其他发明人请求不公开姓名
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Yancheng Leiji Environmental Protection Technology Co ltd
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Yancheng Leiji Environmental Protection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Yancheng Leiji Environmental Protection Technology Co ltd filed Critical Yancheng Leiji Environmental Protection Technology Co ltd
Priority to CN202011596745.0A priority Critical patent/CN112731195A/en
Publication of CN112731195A publication Critical patent/CN112731195A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40Testing power supplies
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00Arrangements for measuring electric power or power factor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/371Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385Arrangements for measuring battery or accumulator variables

Abstract

The invention relates to the technical field of power detection devices, in particular to a sample power detection mechanism developed by an outdoor emergency power supply, which reduces manual operation labor force, improves working efficiency, increases adaptability and reduces use limitation; still include the mount table, power detection mechanism, the display, the battery, the installation roof beam, receive the line roller, first motor frame, driving motor, the transmission shaft, the swing arm, a wire section of thick bamboo, protection bell and on-off controller, install at mount table top front side power detection mechanism bottom, detection line output end and power detection mechanism intercommunication, install the roof beam left end and install the right-hand member at power detection mechanism, the installation roof beam with receive line roller shaft hole cooperation fixed connection, transmission shaft left end coaxial arrangement is at driving motor right side output, the swing arm left end is fixed at the transmission shaft right-hand member, install on the swing arm top wire section of thick bamboo bottom, protection bell symmetry coaxial arrangement is at both ends about the wire section of thick bamboo, the front end at power detection mechanism is installed to.

Description

Sample power detection mechanism for outdoor emergency power supply research and development
Technical Field
The invention relates to the technical field of power detection devices, in particular to a sample power detection mechanism for outdoor emergency power supply research and development.
Background
As is well known, a sample power detection mechanism developed by an outdoor emergency power supply is an auxiliary device for detecting the sample power developed by the outdoor emergency power supply, and is widely used in the field of power detection devices; the sample power detection mechanism that current outdoor emergency power supply researched and developed discovers in using, power equipment is pivot and passageway in the transmission and distribution network, often need detect power in the outdoor emergency power supply research and development sample, find out these power safety hidden dangers and organize the manpower and in time get rid of, but these circumstances can not all lean on people's eye, staff's experience is got rid of one by one, must special power equipment detect could find out these power safety hidden dangers and organize the manpower and in time get rid of, current power detection mechanism is because adapt to different place and region, therefore the detection line all can be longer, lead to collecting and defence line labour to increase, work efficiency is relatively poor, the practicality is lower, use the limitation is higher.
Disclosure of Invention
In order to solve the technical problems, the invention provides the sample power detection mechanism researched and developed by the outdoor emergency power supply, which reduces the manual operation labor force, improves the working efficiency, increases the adaptability and reduces the use limitation.
The invention relates to a sample power detection mechanism developed by an outdoor emergency power supply, which further comprises a mounting table, a power detection mechanism, a display, a storage battery, a mounting beam, a wire take-up roller, a first motor frame, a driving motor, a transmission shaft, a swing arm, a wire guide cylinder, a protective conical opening and an on-off controller, wherein the bottom end of the power detection mechanism is arranged on the front side of the top end of the mounting table, the front end of the power detection mechanism is provided with the display, the output end of the detection wire is communicated with the power detection mechanism, the bottom end of the storage battery is arranged on the top end of the mounting table, the left end of the mounting beam is arranged on the right end of the power detection mechanism, the middle part of the wire take-up roller is provided with a shaft hole, the mounting beam is matched and fixedly connected with the shaft hole of the wire take-, the protection conical openings are symmetrically and coaxially arranged at the left end and the right end of the wire guide cylinder, the rear end of the switch controller is arranged at the front end of the power detection mechanism, the storage battery is electrically communicated with the switch controller through a wire, and the power detection mechanism and the driving motor are respectively communicated with the switch controller through wires.
The sample power detection mechanism for the research and development of the outdoor emergency power supply also comprises a second motor frame, a swing motor, a rotating disc, a connecting pin and a transmission mechanism, wherein the swing motor is arranged on the left side of the bottom end of the mounting beam through the second motor frame, the front end of the rotating disc is coaxially arranged at the output end of the rear side of the swing motor, the front end of the connecting pin is arranged at the rear end of the rotating disc, the connecting pin and a take-up roller are arranged and connected through the transmission mechanism, and the swing motor is electrically communicated with the switch controller through a large lead.
The invention discloses a sample power detection mechanism researched and developed by an outdoor emergency power supply.
The sample power detection mechanism developed by the outdoor emergency power supply further comprises limiting sliding rails and limiting sliding grooves, the limiting sliding rails are symmetrically arranged at the front end and the rear end of the mounting beam, the limiting sliding grooves are symmetrically arranged on the front wall and the rear wall of the groove cavity of the take-up roller, and the limiting sliding rails and the limiting sliding grooves are respectively matched and slidably connected.
The sample power detection mechanism developed by the outdoor emergency power supply further comprises a plurality of Frouhorse wheels, and the top ends of the Frouhorse wheels are installed at the bottom end of the installation table in a matching mode.
The sample power detection mechanism developed by the outdoor emergency power supply further comprises a push-pull handrail, and the right end of the push-pull handrail is fixed at the left end of the power detection mechanism.
The sample power detection mechanism developed by the outdoor emergency power supply further comprises a protective cover, wherein the bottom end of the protective cover is installed at the top end of the installation table, and the left end of the protective cover is installed at the right end of the power detection mechanism.
The sample power detection mechanism for the research and development of the outdoor emergency power supply further comprises a reinforcing rib, wherein the top end of the reinforcing rib is arranged at the bottom end of the wire guide cylinder, and the bottom end of the reinforcing rib is arranged at the right end of the swing arm.
Compared with the prior art, the invention has the beneficial effects that: the power detection mechanism and the storage battery are stably installed and supported through the installation platform, the data detected by the power detection mechanism are displayed through the display, the power detection mechanism is used for supplying electric quantity through the storage battery to increase the site adaptability, the wire take-up roller is stably supported at the right end of the power detection mechanism through the mounting beam, the detection data lines are collected in a centralized way through the line collecting roller, the driving motor is stably arranged at the right end of the mounting beam through the first motor frame, the driving motor rotates to drive the swing arm to rotate through the transmission shaft, the swing arm drives the wire guide cylinder to rotate so as to quickly collect the detection wires, the wire guide cylinder enables the detection wires to be wound and guided, make the wire carry out safety protection through the protection bell and prevent the cut wound, make device start control through the on-off controller, reduce the manual operation labour, improve work efficiency, increase adaptability, reduce and use the limitation.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic cross-sectional structural view of the present invention;
FIG. 3 is an enlarged partial schematic view of the present invention;
FIG. 4 is a schematic view of the construction of the components of the present invention;
in the drawings, the reference numbers: 1. an installation table; 2. a power detection mechanism; 3. a display; 4. a storage battery; 5. mounting a beam; 6. a wire take-up roller; 7. a first motor mount; 8. a drive motor; 9. a drive shaft; 10. a swing arm; 11. a wire guide cylinder; 12. protecting the cone-shaped opening; 13. a switch controller; 14. a second motor mount; 15. a swing motor; 16. rotating the disc; 17. a connecting pin; 18. a drive arm; 19. a bearing; 20. a hinge; 21. a limiting slide rail; 22. a limiting chute; 23. a fortune wheel; 24. pushing and pulling the handrail; 25. a protective cover; 26. and (5) reinforcing ribs.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the sample power detection mechanism developed by the outdoor emergency power supply of the invention further comprises a mounting table 1, a power detection mechanism, a display 3, a storage battery 4, a mounting beam 5, a take-up roller 6, a first motor frame 7, a driving motor 8, a transmission shaft 9, a swing arm 10, a wire guide cylinder 11, a protective cone 12 and an on-off controller 13, wherein the bottom end of the power detection mechanism is mounted at the front side of the top end of the mounting table 1, the display 3 is arranged at the front end of the power detection mechanism, the output end of the detection wire is communicated with the power detection mechanism, the bottom end of the storage battery 4 is mounted at the top end of the mounting table 1, the left end of the mounting beam 5 is mounted at the right end of the power detection mechanism, a shaft hole is arranged at the middle part of the take-up roller 6, the mounting beam 5 is fixedly connected with the shaft hole of the take, the left end of a swing arm 10 is fixed at the right end of a transmission shaft 9, the bottom end of a wire guide cylinder 11 is installed at the top end of the swing arm 10, protective conical openings 12 are symmetrically and coaxially installed at the left end and the right end of the wire guide cylinder 11, the rear end of a switch controller 13 is installed at the front end of a power detection mechanism, a storage battery 4 is electrically communicated with the switch controller 13 through a wire, and the power detection mechanism and a driving motor 8 are respectively communicated with the switch controller 13 through wires; the power detection mechanism and the storage battery 4 are stably installed and supported through the installation platform 1, the detection data of the power detection mechanism are displayed through the display 3, the power detection mechanism is supplied with electricity through the storage battery 4 to increase the site adaptability, the take-up roller 6 is stably supported at the right end of the power detection mechanism through the installation beam 5, the detection data wires are intensively collected through the take-up roller 6, the driving motor 8 is stably installed at the right end of the installation beam 5 through the first motor frame 7, the driving motor 8 rotates to drive the swing arm 10 to rotate through the transmission shaft 9, the guide wire barrel 11 is driven to rotate through the swing arm 10 to quickly collect the detection wires, the detection wires are wound and guided through the guide wire barrel 11, the wires are safely protected through the protection conical opening 12 to prevent cutting, the device is started and controlled through the switch controller 13 to reduce the manual operation labor force, the work efficiency is improved, the adaptability is increased, and the use limitation is reduced.
The sample power detection mechanism for the research and development of the outdoor emergency power supply also comprises a second motor frame 14, a swing motor 15, a rotating disc 16, a connecting pin 17 and a transmission mechanism, wherein the swing motor 15 is installed on the left side of the bottom end of the installation beam 5 through the second motor frame 14, the front end of the rotating disc 16 is coaxially installed at the output end of the rear side of the swing motor 15, the front end of the connecting pin 17 is installed at the rear end of the rotating disc 16, the connecting pin 17 and the wire receiving roller 6 are installed and connected through the transmission mechanism, and the swing motor 15 is electrically communicated with the switch controller 13 through a large lead; make swing motor 15 stable mounting in installation roof beam 5 bottom through second motor frame 14, swing motor 15 rotates and drives connecting pin 17 through rolling disc 16 and rotates, makes connecting pin 17 be connected with receipts line roller 6 transmission through drive mechanism, receives line roller 6 and connecting pin 17 and is connected through drive mechanism and makes receipts line roller 6 provide swing power, makes the detection line evenly collect through receiving line roller 6 swing, improves and collects stability, increases adaptability, reduces and uses the limitation.
The invention discloses a sample power detection mechanism developed by an outdoor emergency power supply, which comprises a transmission arm 18, a bearing 19 and a hinge 20, wherein the bearing 19 is arranged in a shaft hole at the left side of the transmission arm 18, a connecting pin 17 is coaxially matched and connected with the bearing 19, the right side of the hinge 20 is fixedly arranged at the left end of a wire take-up roller 6, and the right end of the transmission arm 18 is connected with the left end of the hinge 20; make driving arm 18 and connecting pin 17 rotate through bearing 19 and be connected, make driving arm 18 rotate with receiving line roller 6 through hinge 20 and be connected, make receiving line roller 6 provide reciprocal swing power through driving arm 18, increase job stabilization nature, improve the adaptability, reduce the use limitation.
The sample power detection mechanism developed by the outdoor emergency power supply further comprises a limiting slide rail 21 and a limiting slide groove 22, wherein the limiting slide rail 21 is symmetrically arranged at the front end and the rear end of the mounting beam 5, the limiting slide groove 22 is symmetrically arranged on the front wall and the rear wall of the groove cavity of the wire take-up roller 6, and the limiting slide rail 21 and the limiting slide groove 22 are respectively matched and slidably connected; make and receive line roller 6 slip orbit spacing through spacing slide rail 21 and the cooperation of spacing spout 22, increase and receive line roller 6 mobility stability, improve the cooperation precision, reduce and use the limitation.
The sample power detection mechanism developed by the outdoor emergency power supply further comprises a plurality of horsewheels 23, and the top ends of the horsewheels 23 are installed at the bottom end of the installation table 1 in a matching mode; make device stable support through the cooperation of a plurality of good fortune horse wheels 23, reduce the device and remove the degree of difficulty, improve and detect the use convenience, reduce and use the limitation.
The sample power detection mechanism developed by the outdoor emergency power supply further comprises a push-pull handrail 24, wherein the right end of the push-pull handrail 24 is fixed at the left end of the power detection mechanism; the device is convenient to push by pushing and pulling the handrail 24, the moving convenience of the device is increased, and the operation difficulty is reduced.
The sample power detection mechanism developed by the outdoor emergency power supply further comprises a protective cover 25, the bottom end of the protective cover 25 is installed at the top end of the installation table 1, and the left end of the protective cover 25 is installed at the right end of the power detection mechanism; make the device carry out dustproof safety protection through safety cover 25, increase the device safety in utilization, reduce and use the limitation.
The sample power detection mechanism for the research and development of the outdoor emergency power supply further comprises a reinforcing rib 26, wherein the top end of the reinforcing rib 26 is arranged at the bottom end of the wire guide cylinder 11, and the bottom end of the reinforcing rib 26 is arranged at the right end of the swing arm 10; the connection strength of the swing arm 10 and the wire guide cylinder 11 is increased through the reinforcing ribs 26, the service life of the device is prolonged, the working stability is improved, and the use limitation is reduced.
When the sample power detection mechanism developed by the outdoor emergency power supply works, the driving motor 8 is started through the switch controller 13, then the detection line is dragged to be connected with the power supply, then the power detection mechanism is started through the switch controller 13 to detect the power supply, and then the detection data can be read through the display 3.
The sample power detection mechanism developed by the outdoor emergency power supply is common in installation mode, connection mode or arrangement mode, and can be implemented as long as the beneficial effects of the sample power detection mechanism are achieved; the power detection mechanism, the storage battery 4, the driving motor 8, the switch controller 13 and the swing motor 15 of the sample power detection mechanism researched and developed by the outdoor emergency power supply are purchased from the market, and technicians in the industry only need to install and operate according to the attached operating instructions.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The sample power detection mechanism developed by an outdoor emergency power supply is characterized by further comprising a mounting table (1), a power detection mechanism, a display (3), a storage battery (4), a mounting beam (5), a take-up roller (6), a first motor frame (7), a driving motor (8), a transmission shaft (9), a swing arm (10), a wire guide cylinder (11), a protective cone-shaped opening (12) and a switch controller (13), wherein the bottom end of the power detection mechanism is mounted at the front side of the top end of the mounting table (1), the display (3) is arranged at the front end of the power detection mechanism, the output end of a detection wire is communicated with the power detection mechanism, the bottom end of the storage battery (4) is mounted at the top end of the mounting table (1), the left end of the mounting beam (5) is mounted at the right end of the power detection mechanism, a shaft hole is formed in the middle part of the take-up, driving motor (8) are installed at installation roof beam (5) right-hand member through first motor frame (7), transmission shaft (9) left end coaxial arrangement is at driving motor (8) right side output, swing arm (10) left end is fixed at transmission shaft (9) right-hand member, install on swing arm (10) top wire section of thick bamboo (11) bottom, both ends about protection cone mouth (12) symmetry coaxial arrangement is in wire section of thick bamboo (11), power detection mechanism front end is installed to switch controller (13) rear end, battery (4) pass through wire electric property intercommunication with switch controller (13), power detection mechanism and driving motor (8) pass through the wire intercommunication with switch controller (13) respectively.
2. The outdoor emergency power supply developed sample power detection mechanism according to claim 1, further comprising a second motor frame (14), a swing motor (15), a rotating disc (16), a connecting pin (17) and a transmission mechanism, wherein the swing motor (15) is installed on the left side of the bottom end of the installation beam (5) through the second motor frame (14), the front end of the rotating disc (16) is coaxially installed at the output end of the rear side of the swing motor (15), the front end of the connecting pin (17) is installed at the rear end of the rotating disc (16), the connecting pin (17) and the take-up roller (6) are installed and connected through the transmission mechanism, and the swing motor (15) is electrically communicated with the switch controller (13) through a large wire.
3. The outdoor emergency power supply developed sample power detection mechanism according to claim 2, wherein the transmission mechanism comprises a transmission arm (18), a bearing (19) and a hinge (20), the bearing (19) is installed inside a shaft hole on the left side of the transmission arm (18), the connecting pin (17) is coaxially matched and connected with the bearing (19), the hinge (20) is fixedly installed at the left end of the wire take-up roller (6) on the right side, and the right end of the transmission arm (18) is connected with the left end of the hinge (20).
4. The outdoor emergency power supply developed sample power detection mechanism according to claim 3, further comprising a limiting slide rail (21) and a limiting slide groove (22), wherein the limiting slide rail (21) is symmetrically installed at the front end and the rear end of the installation beam (5), the limiting slide groove (22) is symmetrically installed on the front wall and the rear wall of the groove cavity of the take-up roller (6), and the limiting slide rail (21) and the limiting slide groove (22) are respectively in sliding fit with each other.
5. The power detection mechanism for the samples developed by the outdoor emergency power supply is characterized by further comprising a plurality of Freques (23), wherein the top ends of the Freques (23) are matched and arranged at the bottom end of the mounting platform (1).
6. The power detection mechanism for samples developed by an outdoor emergency power supply according to claim 5, further comprising a push-pull armrest (24), wherein the right end of the push-pull armrest (24) is fixed at the left end of the power detection mechanism.
7. The power detection mechanism for samples developed by an outdoor emergency power supply according to claim 6, further comprising a protective cover (25), wherein the bottom end of the protective cover (25) is installed at the top end of the installation table (1), and the left end of the protective cover (25) is installed at the right end of the power detection mechanism.
8. The power detection mechanism for the samples developed by the outdoor emergency power supply according to claim 7, further comprising a reinforcing rib (26), wherein the top end of the reinforcing rib (26) is installed at the bottom end of the wire guide cylinder (11), and the bottom end of the reinforcing rib (26) is installed at the right end of the swing arm (10).
CN202011596745.0A 2020-12-29 2020-12-29 Sample power detection mechanism for outdoor emergency power supply research and development Pending CN112731195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011596745.0A CN112731195A (en) 2020-12-29 2020-12-29 Sample power detection mechanism for outdoor emergency power supply research and development

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011596745.0A CN112731195A (en) 2020-12-29 2020-12-29 Sample power detection mechanism for outdoor emergency power supply research and development

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207072710U (en) * 2017-08-07 2018-03-06 中国通信建设集团设计院有限公司第四分公司 A kind of communications cable neatly puts wire rolling machine
CN108535664A (en) * 2018-04-04 2018-09-14 广州供电局有限公司 Power emergency power source equipment movable type detection platform
CN108919024A (en) * 2018-05-17 2018-11-30 蔡锦文 A kind of cable leakage detection device
CN209872027U (en) * 2019-05-06 2019-12-31 高安市华鸿电器有限公司 Rolling type wire insulation layer detection device
CN110957675A (en) * 2019-11-22 2020-04-03 国家电网有限公司 Withstand voltage testing device for underground cable laying
CN210236719U (en) * 2019-06-14 2020-04-03 南京奥民斯特机电科技有限公司 Cable winding device for emergency power supply vehicle
CN210294495U (en) * 2019-07-04 2020-04-10 乔娟 Transformer substation storage battery direct current power supply testing device
CN211569703U (en) * 2019-09-25 2020-09-25 佛山市思特传导科技有限公司 Power line take-up device
CN212008958U (en) * 2020-05-15 2020-11-24 中国兵器工业北方勘察设计研究院有限公司 Earthquake monitoring device convenient to installation

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207072710U (en) * 2017-08-07 2018-03-06 中国通信建设集团设计院有限公司第四分公司 A kind of communications cable neatly puts wire rolling machine
CN108535664A (en) * 2018-04-04 2018-09-14 广州供电局有限公司 Power emergency power source equipment movable type detection platform
CN108919024A (en) * 2018-05-17 2018-11-30 蔡锦文 A kind of cable leakage detection device
CN209872027U (en) * 2019-05-06 2019-12-31 高安市华鸿电器有限公司 Rolling type wire insulation layer detection device
CN210236719U (en) * 2019-06-14 2020-04-03 南京奥民斯特机电科技有限公司 Cable winding device for emergency power supply vehicle
CN210294495U (en) * 2019-07-04 2020-04-10 乔娟 Transformer substation storage battery direct current power supply testing device
CN211569703U (en) * 2019-09-25 2020-09-25 佛山市思特传导科技有限公司 Power line take-up device
CN110957675A (en) * 2019-11-22 2020-04-03 国家电网有限公司 Withstand voltage testing device for underground cable laying
CN212008958U (en) * 2020-05-15 2020-11-24 中国兵器工业北方勘察设计研究院有限公司 Earthquake monitoring device convenient to installation

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Application publication date: 20210430