CN113125841A - Detection device - Google Patents

Detection device Download PDF

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Publication number
CN113125841A
CN113125841A CN202110523061.6A CN202110523061A CN113125841A CN 113125841 A CN113125841 A CN 113125841A CN 202110523061 A CN202110523061 A CN 202110523061A CN 113125841 A CN113125841 A CN 113125841A
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China
Prior art keywords
assembly
detection
detection device
piece
component
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Granted
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CN202110523061.6A
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Chinese (zh)
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CN113125841B (en
Inventor
林立标
陈韧
周纯
刘粤
谢晓明
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Guangdong Power Grid Co Ltd
Jieyang Power Supply Bureau of Guangdong Power Grid Co Ltd
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Guangdong Power Grid Co Ltd
Jieyang Power Supply Bureau of Guangdong Power Grid Co Ltd
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Priority to CN202110523061.6A priority Critical patent/CN113125841B/en
Publication of CN113125841A publication Critical patent/CN113125841A/en
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Publication of CN113125841B publication Critical patent/CN113125841B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145Indicating the presence of current or voltage
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention discloses a detection device, and belongs to the technical field of high-voltage electroscopy. The detection device comprises a supporting component, a detection component and an adjusting component, wherein the detection component is used for detecting a piece to be detected; the adjusting component rotates and locates on the supporting component, the adjusting component includes telescopic machanism, telescopic machanism's flexible end with the determine module rotates and links to each other, in order to adjust determine module with contained angle between the supporting component with determine module with contained angle between the piece that awaits measuring. In the detection device, the telescopic end of the telescopic mechanism of the adjusting assembly is rotatably connected with the detection assembly to adjust the included angle between the detection assembly and the supporting assembly and the included angle between the detection assembly and the piece to be detected, so that the space posture of the detection assembly is changed, the applicability of the detection device is improved, and the accuracy of a detection result is also improved.

Description

Detection device
Technical Field
The invention relates to the technical field of high-voltage electroscopy, in particular to a detection device.
Background
When electrical equipment or a high-voltage line is overhauled, in order to ensure the personal safety of workers, the situation that safety accidents easily occur due to the fact that a ground wire is installed in an electrified mode or a disconnecting link is connected in an electrified mode needs to be avoided, and therefore electricity inspection needs to be conducted on the high-voltage line of the electrical equipment after power failure.
Because there can be the dead angle that awaits measuring in the actual testing process, consequently prior art provides the electroscope device that includes contact electroscope angle modulation wantonly, through adjusting the contained angle between electroscope and the bracing piece in order to improve electroscope device's suitability.
The non-contact electroscope realizes electroscopy through the principle of gathering the electric field intensity of the piece that awaits measuring near the piece that awaits measuring, and the testing result of non-contact electroscope depends on the position relation between the face that awaits measuring of the detection face of electroscope and the piece that awaits measuring, and the face that detects is close to more parallel with the face that awaits measuring more, and the testing result that obtains is more accurate. In the actual detection process, the shape and the installation position of the to-be-detected piece are limited, the position relation between the detection surface and the to-be-detected surface has uncertainty, and the detection result is low in accuracy. When the existing electroscope is applied to the non-contact electroscope, the included angle between the electroscope and the supporting rod can only be changed, the applicability of the electroscope is improved, and the accuracy of a detection result cannot be influenced.
Therefore, it is desirable to provide a detection device to solve the above problems.
Disclosure of Invention
The invention aims to provide a detection device, which adjusts the spatial posture of a detection assembly through an adjusting assembly, ensures the applicability of the detection device and solves the problem that the prior art cannot ensure the accuracy of a detection result.
In order to realize the purpose, the following technical scheme is provided:
a detection device, comprising:
a support assembly;
the detection assembly is used for detecting a piece to be detected;
the adjusting assembly is rotatably arranged on the supporting assembly; the adjusting component comprises a telescopic mechanism, and the telescopic end of the telescopic mechanism is connected with the detection component in a rotating mode so as to adjust the included angle between the detection component and the supporting component and the included angle between the detection component and the piece to be detected.
As an optional implementation of the above detection apparatus, the adjusting assembly further includes a first connecting piece, the first connecting piece includes a first end and a second end, and the first end and the second end of the first connecting piece are respectively rotatably connected to the detecting assembly and the supporting assembly;
the telescopic mechanism comprises a first telescopic mechanism, the output end of the first telescopic mechanism is rotatably connected with the first end of the first connecting piece, and the other end of the first telescopic mechanism and the second end of the first connecting piece are arranged on the supporting component at intervals.
As an optional implementation of the above detection device, the telescopic mechanism further includes a second telescopic mechanism, a telescopic end of the second telescopic mechanism and the first end of the first connecting member are disposed on the detection assembly at an interval, and the other end of the second telescopic mechanism is rotatably disposed at the second end of the first connecting member.
As an optional implementation of the above detection device, the first telescopic mechanism and the second telescopic mechanism both include a first driving member and a telescopic rod, and the telescopic rod is disposed at an output end of the first driving member.
As an optional implementation scheme of the detection device, the detection device comprises a mounting plate, one side of the mounting plate is connected with the adjusting component, and the other side of the mounting plate is connected with the detection component; an insulating layer is arranged between the mounting plate and the detection assembly.
As an optional embodiment of the above detection device, the support assembly comprises:
a support rod arranged along a vertical direction;
the rotating part is rotatably arranged at the top end of the supporting rod, the adjusting assembly is arranged on the rotating part, and the rotating part is used for driving the adjusting assembly to rotate around the axis of the supporting rod.
As an optional implementation of the above detection device, the support assembly further includes a lifting platform, and the support rod is disposed on the lifting platform.
As an optional implementation of the above detection device, the support assembly further includes a second driving element, the support rod is a telescopic rod, and the support rod is disposed at an output end of the second driving element.
As an optional implementation of the above detection device, the detection device further includes an observation component, and the observation component includes:
the camera is connected with the first connecting piece through a second connecting piece and is used for shooting an included angle between the detection assembly and the piece to be detected;
the display screen is located the bottom of bracing piece, and with the camera electricity is connected, is used for showing the determine module with the contained angle between the piece that awaits measuring.
As an optional implementation of the above detection apparatus, the detection apparatus further includes a moving member, the moving member includes a base and a universal wheel disposed under the base, and the support assembly is disposed on the base.
Compared with the prior art, the invention has the beneficial effects that:
according to the detection device, the adjusting assembly is rotatably arranged on the supporting assembly, the telescopic end of the telescopic mechanism in the adjusting assembly is rotatably connected with the detection assembly to adjust the included angle between the detection assembly and the supporting assembly and the included angle between the detection assembly and the piece to be detected, so that the space posture of the detection assembly is changed, the detection device can detect the piece to be detected at any position, the applicability of the detection device is improved, the detection surface of the detection assembly and the piece to be detected of the piece to be detected are relatively parallel, and the accuracy of a detection result is improved.
Drawings
FIG. 1 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention;
fig. 2 is a schematic view of a part of the structure of the detecting device in the embodiment of the present invention.
Reference numerals:
1. a support assembly; 2. a detection component; 3. an adjustment assembly; 4. mounting a plate; 5. an observation assembly; 6. a moving member;
11. a support bar; 12. a rotating member; 121. a rotating base; 122. a rotating shaft; 123. a mounting seat; 13. a lifting platform;
31. a telescoping mechanism; 311. a first telescoping mechanism; 3111. a first driving member; 3112. a telescopic rod; 312. a second telescoping mechanism; 32. a first connecting member; 321. a first end; 3211. a first mounting surface; 3212. a second mounting surface; 322. a second end; 3221. a third mounting surface; 3222. a fourth mounting surface;
41. an insulating layer;
51. a camera; 52. a second connecting member; 53. a display screen;
61. a base; 62. a universal wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "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 or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Example one
As shown in fig. 1-2, the present embodiment provides a detection apparatus, which includes a support assembly 1, a detection assembly 2, and an adjustment assembly 3; the detection assembly 2 is used for detecting a piece to be detected; the adjusting component 3 is rotatably arranged on the supporting component 1; the adjusting component 3 comprises a telescopic mechanism 31, and the telescopic end of the telescopic mechanism 31 is rotatably connected with the detecting component 2 so as to adjust the included angle between the detecting component 2 and the supporting component 1 and the included angle between the detecting component 2 and the piece to be detected.
Detection device in this embodiment rotates on supporting component 1 and is equipped with adjusting part 3, telescopic machanism 31's flexible end rotates with detecting component 2 in adjusting part 3 and links to each other, with contained angle and detecting component 2 between adjusting detecting component 2 and supporting component 1 and the contained angle between the piece that awaits measuring, thereby change detecting component 2's space gesture, not only make detecting device can detect the piece that awaits measuring of optional position, detection device's suitability has been improved, can also make detecting component 2's the face that awaits measuring of face and the piece that awaits measuring relatively parallel, the accurate nature of testing result has been improved.
As shown in fig. 1-2, optionally, the adjusting assembly 3 further includes a first connecting member 32, the first connecting member 32 includes a first end 321 and a second end 322, and the first end 321 and the second end 322 of the first connecting member 32 are rotatably connected to the detecting assembly 2 and the supporting assembly 1, respectively; the telescopic mechanism 31 includes a first telescopic mechanism 311, an output end of the first telescopic mechanism 311 is rotatably connected with a first end 321 of the first connecting member 32, and the other end of the first telescopic mechanism 311 and a second end 322 of the first connecting member 32 are spaced on the supporting assembly 1, so that when the first telescopic mechanism 311 is telescopic, the first connecting member 32 can be driven to rotate, and an included angle between the detecting assembly 2 and the supporting assembly 1 is changed. Further optionally, the first end 321 of the first connecting member 32 is a U-shaped structure, and includes a first mounting surface 3211 and a second mounting surface 3212 which are arranged in parallel, and the output end of the first telescopic mechanism 311 and the detection component 2 are arranged between the first mounting surface 3211 and the second mounting surface 3212 at an interval, so as to realize connection of the first telescopic mechanism 311, the first connecting member 32 and the detection component 2.
Further optionally, telescopic machanism 31 still includes second telescopic machanism 312, the flexible end of second telescopic machanism 312 and the first end 321 interval of first connecting piece 32 are located on detecting element 2, the other end of second telescopic machanism 312 rotates the second end 322 department of locating first connecting piece 32, so that the rotation of first connecting piece 32 can drive the rotation of second telescopic machanism 312, the flexible interference that causes second telescopic machanism 312 of the flexible of first telescopic machanism 311 has been avoided, still when making second telescopic machanism 312 flexible, detecting element 2 can rotate in first end 321 department of first connecting piece 32, thereby change the contained angle between detecting element 2 and the piece that awaits measuring. Further optionally, the second end 322 of the first connecting element 32 is a Y-shaped structure, and includes a mounting rod, and a third mounting surface 3221 and a fourth mounting surface 3222 arranged at an interval, the mounting rod connects the third mounting surface 3221 and the fourth mounting surface 3222, and the second telescopic mechanism 312 is rotatably disposed on the mounting rod, so as to implement stable connection of the second telescopic mechanism 312 on the first connecting element 32. Further, in this embodiment, the above-mentioned rotation connection modes are all hinged.
As can be seen from the above, the first telescoping mechanism 311 telescopes, and the rotation of the first link 32 coarsely adjusts the detecting assembly 2 to the first position; the second telescopic machanism 312 is flexible, finely tunes the detecting component 2 to the second position, and the detecting surface of the detecting component 2 of second position department is parallel with the face that awaits measuring of the piece that awaits measuring, and adjusting part 3 can adjust the space gesture of detecting component 2 promptly to improve the precision of detection effect.
Further optionally, the first telescopic mechanism 311 and the second telescopic mechanism 312 both include a first driving part 3111 and a telescopic rod 3112, and the telescopic rod 3112 is disposed at an output end of the first driving part 3111 to realize the extension and retraction of the telescopic mechanism 31. In this embodiment, the first driver 3111 is a cylinder.
Further, the detection device further comprises a flow regulating valve, and the flow of the external input gas is controlled through the flow regulating valve, so that the expansion amount of the expansion mechanism 31 is changed, and the adjustment of different space postures of the detection assembly 2 is realized.
As shown again in fig. 1-2, optionally, the detection device includes a mounting plate 4, one side of the mounting plate 4 being connected to the adjustment assembly 3 and the other side being connected to the detection assembly 2; an insulating layer 41 is arranged between the mounting plate 4 and the detection component 2 to prevent the detection component 2 and the support component 1 from being electrified to cause personal harm to workers, and the safety performance of the detection device is improved. Further optionally, a protrusion is convexly arranged at a position on one side of the mounting plate 4 connected with the adjusting assembly 3 in a direction away from the detecting assembly 2, and the protrusion is rotatably connected with the first connecting piece 32 to realize stable connection between the detecting assembly 2 and the first connecting piece 32. Further, in this embodiment, the mounting plate 4 is a circular structure, the protrusion is disposed at a center of the mounting plate 4, and the output end of the second telescoping mechanism 312 is disposed on the outer circumference of the detecting assembly 2.
Referring to fig. 1, optionally, the supporting assembly 1 includes a supporting rod 11 and a rotating member 12, the supporting rod 11 is arranged in a vertical direction, the structure of the detecting device is optimized, and the occupied space of the detecting device is reduced; the rotating piece 12 is rotatably arranged on the top end of the supporting rod 11; the adjusting component 3 is arranged on the rotating component 12, and the rotating component 12 is used for driving the adjusting component 3 to rotate around the axis of the supporting rod 11, so that the detection range of the detecting component 2 is enlarged. Specifically, the rotating member 12 includes a rotating base 121, a rotating shaft 122 and a mounting base 123, the bottom end of the rotating shaft 122 is disposed at the driving end of the rotating base 121, the rotating base 121 drives the rotating shaft 122 to rotate around the axis thereof, and the mounting base 123 is fixedly disposed at the top end of the rotating shaft 122, so as to achieve synchronous rotation of the mounting base 123 and the rotating base 121. Further optionally, the mounting seat 123 is provided with an accommodating cavity for accommodating the rotating shaft 122, a protrusion is circumferentially arranged on an outer surface of the top end of the rotating shaft 122, and a groove matched with the protrusion is correspondingly arranged in the accommodating cavity, so as to fixedly connect the mounting seat 123 and the rotating shaft 122. In other embodiments, the connection between the mounting seat 123 and the rotating shaft 122 can also be realized by a threaded connection.
Further optionally, the supporting assembly 1 further includes a lifting platform 13, and the supporting rod 11 is disposed on the lifting platform 13 to realize the adjustment of the detecting assembly 2 in the vertical direction. The mechanism of the lift table 13 is not limited in this embodiment. Or further optionally, the supporting assembly 1 further includes a second driving member, the supporting rod 11 is a telescopic rod, and the supporting rod 11 is disposed at an output end of the second driving member, so as to achieve adjustment of the detecting assembly 2 in the vertical direction.
Further optionally, the detecting device further includes a moving member 6, the moving member 6 includes a base 61 and a universal wheel 62 disposed under the base 61, and the supporting assembly 1 is disposed on the base 61 to facilitate movement of the detecting device.
With reference to fig. 1 and fig. 2, further optionally, the detection apparatus further includes an observation assembly 5, where the observation assembly 5 includes a camera 51 and a display 53, and the camera 51 is connected to the first connecting member 32 through a second connecting member 52 and is used for shooting an included angle between the detection assembly 2 and the to-be-detected member; the bottom of bracing piece 11 is located to display screen 53 to be connected with camera 51 electricity, be used for showing the detection subassembly 2 and the contained angle that awaits measuring, solved the high altitude and detected time measuring, whether the inconvenient problem of adjusting target in place of observing detection subassembly 2 and the piece that awaits measuring of staff, so that the staff controls telescopic machanism 31's flexible volume according to above-mentioned positional information, further improves the accurate nature of testing result. Further, the second connecting member 52 is an L-shaped structure to avoid the detecting assembly 2 and the object to be detected.
Example two
In this embodiment, compared with the first embodiment, the basic structure of the detection apparatus provided in this embodiment is the same as that of the first embodiment, except that the detection apparatus further includes an illumination assembly disposed on the second connecting member 52, and the structure the same as that of the first embodiment is not repeated in this embodiment.
Optionally, the detection device further comprises an illumination assembly disposed on the second connecting member 52, so as to photograph the position relationship between the object to be detected and the detection assembly 2 under the condition of dim light. Further optionally, the lighting assembly comprises a light sensing sensor and a lighting element, and the light sensing sensor is electrically connected with the lighting element to control the opening and closing of the lighting element.
It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A detection device, comprising:
a support assembly (1);
the detection assembly (2) is used for detecting a piece to be detected;
the adjusting component (3) is rotatably arranged on the supporting component (1); adjusting part (3) include telescopic machanism (31), telescopic machanism (31) flexible end with determine module (2) rotate and link to each other, in order to adjust determine module (2) with contained angle between supporting component (1) with determine module (2) with contained angle between the piece that awaits measuring.
2. The detection device according to claim 1, wherein the adjustment assembly (3) further comprises a first connecting member (32), the first connecting member (32) comprises a first end (321) and a second end (322), and the first end (321) and the second end (322) of the first connecting member (32) are respectively rotatably connected with the detection assembly (2) and the support assembly (1);
telescopic machanism (31) include first telescopic machanism (311), the output of first telescopic machanism (311) with first connecting piece (32) first end (321) rotate and link to each other, the other end of first telescopic machanism (311) with first connecting piece (32) second end (322) interval is located on supporting component (1).
3. The detection device according to claim 2, wherein the telescoping mechanism (31) further comprises a second telescoping mechanism (312), a telescoping end of the second telescoping mechanism (312) is spaced apart from the first end (321) of the first connecting member (32) on the detection assembly (2), and another end of the second telescoping mechanism (312) is rotatably disposed at the second end (322) of the first connecting member (32).
4. The detecting device according to claim 3, wherein the first telescoping mechanism (311) and the second telescoping mechanism (312) each include a first driving member (3111) and a telescopic rod (3112), and the telescopic rod (3112) is disposed at an output end of the first driving member (3111).
5. The detection device according to claim 1, characterized in that it comprises a mounting plate (4), said mounting plate (4) being connected to said adjustment assembly (3) on one side and to said detection assembly (2) on the other side; an insulating layer (41) is arranged between the mounting plate (4) and the detection assembly (2).
6. The detection device according to claim 2, characterized in that the support assembly (1) comprises:
a support bar (11) arranged in the vertical direction;
the rotating part (12) is rotatably arranged on the top end of the supporting rod (11), the adjusting component (3) is arranged on the rotating part (12), and the rotating part (12) is used for driving the adjusting component (3) to wind the axis of the supporting rod (11) to rotate.
7. The detection device according to claim 6, characterized in that the support assembly (1) further comprises a lifting table (13), the support bar (11) being provided on the lifting table (13).
8. The detection device according to claim 6, wherein the support assembly (1) further comprises a second driving member, the support rod (11) is a telescopic rod, and the support rod (11) is arranged at an output end of the second driving member.
9. The detection device according to claim 6, characterized in that it further comprises an observation assembly (5), said observation assembly (5) comprising:
the camera (51) is connected with the first connecting piece (32) through a second connecting piece (52) and is used for shooting an included angle between the detection assembly (2) and the piece to be detected;
display screen (53), locate the bottom of bracing piece (11), and with camera (51) electricity is connected, is used for showing determine module (2) with the contained angle between the piece that awaits measuring.
10. The detection device according to claim 1, characterized in that it further comprises a mobile element (6), said mobile element (6) comprising a base (61) and a universal wheel (62) arranged under said base (61), said support assembly (1) being arranged on said base (61).
CN202110523061.6A 2021-05-13 2021-05-13 Detection device based on non-contact electroscope Active CN113125841B (en)

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CN113804950A (en) * 2021-09-07 2021-12-17 江西电力职业技术学院 Automatic telescopic test pencil
CN113835041A (en) * 2021-09-22 2021-12-24 国网河北省电力有限公司武强县供电分公司 High-voltage line detects and tests electrical equipment with transformer
CN114827422A (en) * 2022-05-06 2022-07-29 广东电网有限责任公司 Device and method for checking power communication tower

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CN208935698U (en) * 2018-10-18 2019-06-04 青海民族大学 A kind of multi-angle acquisition device for image procossing
CN109786995A (en) * 2019-02-28 2019-05-21 广州供电局有限公司 Liftable high-tension line electricity-detection grounding device
CN110187150A (en) * 2019-05-29 2019-08-30 知为力(成都)科技有限公司 A kind of support rod and the measuring device with electricity with the support rod

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113804950A (en) * 2021-09-07 2021-12-17 江西电力职业技术学院 Automatic telescopic test pencil
CN113835041A (en) * 2021-09-22 2021-12-24 国网河北省电力有限公司武强县供电分公司 High-voltage line detects and tests electrical equipment with transformer
CN113835041B (en) * 2021-09-22 2024-04-19 国网河北省电力有限公司武强县供电分公司 Transformer electroscope for high-voltage line detection
CN114827422A (en) * 2022-05-06 2022-07-29 广东电网有限责任公司 Device and method for checking power communication tower
CN114827422B (en) * 2022-05-06 2023-08-15 广东电网有限责任公司 Inspection device and method for power communication tower

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