CN118226182B - Fault matching detection device for power distribution network - Google Patents
Fault matching detection device for power distribution network Download PDFInfo
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- CN118226182B CN118226182B CN202410644166.0A CN202410644166A CN118226182B CN 118226182 B CN118226182 B CN 118226182B CN 202410644166 A CN202410644166 A CN 202410644166A CN 118226182 B CN118226182 B CN 118226182B
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- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention is suitable for the technical field of power engineering, and provides a fault matching detection device for a power distribution network, which comprises a handle control assembly, an upper clamping seat, a lower clamping seat, a fixed ring, a follow-up column and a mutual inductance detector, wherein the upper clamping seat, the lower clamping seat, the fixed ring and the mutual inductance detector are concentric and are of a split structure, and the fault matching detection device also comprises: the centering clamping assembly is provided with a plurality of groups, and the centering clamping assemblies are circumferentially distributed in the upper clamping seat and the lower clamping seat and are connected with the fixing ring. According to the fault matching detection device for the power distribution network, the centering clamping assembly is matched with the fixed ring, the follow-up column, the mutual inductance detector and the handle control assembly, so that not only can the electric wire to be detected be centered and clamped, but also the tensile force can be applied to the two ends of the electric wire to be detected, the electric wire to be detected is straightened, the electric wire to be detected is concentric with the mutual inductance detector, the detection precision of the mutual inductance detector on the electric wire to be detected is improved, and the accuracy of detection data is ensured.
Description
Technical Field
The invention belongs to the technical field of power engineering, and particularly relates to a power distribution network fault matching detection device.
Background
The distribution network is a power network which receives electric energy from a power transmission network or a regional power plant, distributes the electric energy to various users in situ through a distribution facility or distributes the electric energy to various users step by step according to voltage, and mainly comprises overhead lines, cables, towers, distribution transformers, isolating switches, reactive compensators, a plurality of auxiliary facilities and the like. After the power distribution network processing center determines the approximate fault area, the operation site is required to conduct one-by-one investigation and detection, and when the electric wires are subjected to investigation, the electric wires are generally detected and subjected to one-by-one investigation through an insulating operation rod provided with a mutual inductance detector.
The existing power distribution network fault matching detection device comprises a handheld insulating telescopic rod and an arc-shaped clamp seat which is arranged on the telegraph pole and used for being lapped on the insulating telescopic rod, a mutual inductance detection clamp used for sleeving and buckling a wire is arranged at the top end of the insulating telescopic rod, and a fault detection device matched with the mutual inductance detection clamp to detect the wire is arranged at the bottom end of the insulating telescopic rod.
Because mutual inductance detection pincers measure the electric current through electromagnetic induction, when the electric wire that awaits measuring appears any deviation central point's action, all probably lead to mutual inductance detection pincers to sense the magnetic field intensity and change, and then influence measurement accuracy, therefore whether the electric wire that awaits measuring is accurate to be located mutual inductance detection pincers's central point put one of the important factors of determining measurement accuracy, and current device is only with the electric wire that awaits measuring in mutual inductance detection pincers's detection area, and can not guarantee that the electric wire that awaits measuring is concentric with mutual inductance detection pincers, can't guarantee promptly that the electric wire that awaits measuring is accurate to be located mutual inductance detection pincers's central point put when detecting.
Therefore, in view of the above situation, there is an urgent need to develop a power distribution network fault matching detection device to overcome the shortcomings in the current practical application.
Disclosure of Invention
Aiming at the defects existing in the prior art, the embodiment of the invention aims to provide a power distribution network fault matching detection device so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a distribution network trouble match detection device, includes accuse subassembly, control the both sides of subassembly and all install the last holder and lower holder of ring structure, one side of going up the holder is rotated with one side of lower holder through the hinge and is connected, go up the holder and the opposite side of lower holder all are fixed with the engaging lug board, just go up the holder and the lower holder all link to each other through the installing support with accuse subassembly, two sets of engaging lug board will go up the holder and be cylindric whole with lower holder through the mode with locking screw matched with, just go up all slidable mounting has solid fixed ring on the inner wall of holder and lower holder, be close to on the solid fixed ring to one side of accuse subassembly and be fixed with the follow-up post, the one end of follow-up post links to each other with the mutual inductance detector fixed connection of split structure, the output that is controlling the subassembly links to each other with the mutual inductance detector that distributes in its both sides respectively, still includes:
The centering clamping assemblies are provided with a plurality of groups, the centering clamping assemblies are positioned in the upper clamping seat and the lower clamping seat, and the centering clamping assemblies are circumferentially distributed on the outer wall of the fixed ring and are respectively connected with the inner walls of the upper clamping seat and the lower clamping seat;
The centering clamping assembly comprises a deflection unit and a clamping unit, one end of the deflection unit is circumferentially distributed on the outer wall of the fixed ring, the other end of the deflection unit is respectively connected with the inner walls of the upper clamping seat and the lower clamping seat, the clamping unit is rotatably installed at one end, close to the axis of the fixed ring, of the deflection unit, and the inner wall of the clamping unit is an arc-shaped surface;
the fixed ring, the upper clamping seat, the lower clamping seat and the mutual inductance detector are concentric;
When the electric wire to be tested of the power distribution network needs to be tested, the fixing ring, the upper clamping seat, the lower clamping seat and the mutual inductance detector are arranged in the multiple groups of clamping units in a relatively rotating mode, the connecting lug plates connect the upper clamping seat and the lower clamping seat into a whole, the mutual inductance detectors on two sides of the control assembly are driven to move in opposite directions, the mutual inductance detectors on two sides simultaneously drive the fixing ring on the same side of the control assembly to slide on the inner walls of the upper clamping seat and the lower clamping seat, the fixing ring drives the multiple groups of deflection units which are circumferentially distributed on the fixing ring to rotate simultaneously in a sliding mode, the multiple groups of deflection units drive the clamping units on the fixing ring to rotate simultaneously in a direction close to the electric wire to be tested, the multiple groups of clamping units clamp the electric wire to be tested in a centering mode and straighten two ends of the electric wire to be tested in a simultaneous rotating mode, and the electric wire to be tested is concentric with the mutual inductance detectors in a centering mode and the two ends of the electric wire to be tested.
As a further aspect of the present invention, the deflection unit includes:
The connecting pieces are circumferentially distributed on the outer wall of the fixed ring and are rotationally connected with the outer wall of the fixed ring;
mounting rods circumferentially distributed on the inner walls of the upper clamping seat and the lower clamping seat; and
The V-shaped rotating piece is rotatably arranged on the mounting rod, one end of the V-shaped rotating piece is rotatably connected with the connecting piece, and the clamping unit is rotatably arranged at the other end of the V-shaped rotating piece.
As a further technical solution of the present invention, the clamping unit includes:
the mounting seat is rotatably arranged at the other end of the V-shaped rotating piece;
Guide posts are slidably arranged at the upper end and the lower end of the mounting seat; and
The clamping piece is fixed on one side of the guide post, a spring is arranged between the outer wall of the clamping piece and the mounting seat, the clamping piece adopts an arc-shaped block structure, the inner wall of the clamping piece is provided with an arc-shaped surface, and anti-slip grooves are distributed on the inner wall of the clamping piece.
As a further technical scheme of the invention, the inside of the mutual inductance detector is provided with the installation ring groove, the installation ring groove is used for placing a winding structure and a sensor for detecting the electric wire to be detected, and one side of the mutual inductance detector is also provided with the limit ring groove matched with the handle control component.
As a further technical solution of the present invention, the handle control assembly includes:
the fixed seat is positioned between the two groups of mutual inductance detectors;
A handle control unit arranged at one side of the fixed seat; and
Two groups of connecting units which are symmetrically and slidably arranged on the fixing seat, one ends of the two groups of connecting units are in sliding fit with the handle control unit, and the other ends of the two groups of connecting units are respectively connected with two groups of mutual inductance detectors positioned on two sides of the fixing seat and are respectively matched with the two groups of limiting ring grooves.
As a further technical solution of the present invention, the handle control unit includes:
the screw rod is rotatably arranged on one side of the fixed seat, and a rotating wheel is fixed at one end of the screw rod; and
The lifting plate is slidably mounted on one side of the fixing seat and is in threaded connection with the screw rod, and two groups of adjusting chute which are respectively in sliding fit with the two groups of connecting units are symmetrically arranged on the lifting plate.
As a further technical scheme of the invention, the inclined directions of the two groups of the adjusting chute face to the central position close to the lifting plate, and the two groups of the adjusting chute drive the two groups of the connecting units to move towards the directions close to each other in a vertical moving mode.
As a further technical solution of the present invention, the connection unit includes:
the transverse moving strip is symmetrically and slidably arranged at one side of the fixed seat; and
Two groups of L-shaped connecting columns respectively fixed on the two groups of transverse moving strips, one ends of the two groups of L-shaped connecting columns are respectively in sliding fit with the two groups of adjusting chute, the other ends of the two groups of L-shaped connecting columns are respectively connected with two groups of mutual inductance detectors positioned on two sides of the fixing seat, and connecting rings matched with the limiting ring grooves are respectively fixed on the other ends of the two groups of L-shaped connecting columns.
Compared with the prior art, the invention has the beneficial effects that:
In the invention, the fixing ring, the upper clamping seat, the lower clamping seat and the mutual inductance detector are all of split structures, so that the electric wire to be detected can be rapidly positioned in the plurality of groups of clamping components and the mutual inductance detector, the rapid positioning of the electric wire to be detected is realized, the plurality of groups of clamping components are convenient to clamp the electric wire to be detected, and the mutual inductance detector is convenient to detect the magnetic field intensity change when the electric wire to be detected is electrified;
The centering clamping assembly is matched with the fixed ring, the follow-up column, the mutual inductance detector and the handle control assembly, centering clamping can be carried out on the electric wire to be detected, tension can be applied to two ends of the electric wire to be detected, and accordingly straightening of the electric wire to be detected is achieved, the electric wire to be detected is concentric with the mutual inductance detector, the center position of the mutual inductance detector is the optimal measuring position for detecting the electric wire to be detected, because the mutual inductance detector measures current through electromagnetic induction, any action of the electric wire to be detected deviating from the center position of the mutual inductance detector can affect magnetic field intensity change sensed by the mutual inductance detector, and further the measuring accuracy of the electric wire to be detected is affected, and therefore it is important to ensure concentricity of the electric wire to be detected and the mutual inductance detector, and the detecting accuracy of the electric wire to be detected and the detecting data can be improved.
In order to more clearly illustrate the structural features and efficacy of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of a first view angle of a fault matching detection device for a power distribution network according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second view angle of a fault matching detection device for a power distribution network according to an embodiment of the present invention.
Fig. 3 is an enlarged view of the structure of the upper and lower holders in fig. 2 in a closed state.
Fig. 4 is an enlarged view of the structure of the upper and lower holders in fig. 3 in an opened state.
Fig. 5 is an enlarged view of the structure at a in fig. 4.
Fig. 6 is an enlarged view of the structure at B in fig. 4.
Fig. 7 is an enlarged view of the structure at C in fig. 3.
Fig. 8 is an enlarged view of the structure at D in fig. 4.
Reference numerals: the device comprises a 1-upper clamping seat, a 2-lower clamping seat, a 3-fixed ring, a 4-mutual inductance detector, a 41-mounting ring groove, a 42-limiting ring groove, a 5-handle control component, a 51-fixed seat, a 52-connecting unit, a 521-traversing bar, a 522-L-shaped connecting column, a 523-connecting ring, a 53-handle control unit, a 531-rotating wheel, a 532-screw rod, a 533-lifting plate, a 534-adjusting chute, a 6-centering clamping component, a 61-deflection unit, a 611-connecting piece, a 612-V-shaped rotating piece, a 613-mounting rod, a 62-clamping unit, a 621-mounting seat, a 622-guiding column, a 623-clamping piece, a 624-spring, a 625-anti-skid groove, a 7-connecting lug plate, an 8-follow-up column and a 9-hinge.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1 to 6, as an embodiment of the present invention, a fault matching detection device for a power distribution network includes a handle control assembly 5, an upper clamping seat 1 and a lower clamping seat 2 having a circular ring structure are installed on both sides of the handle control assembly 5, one side of the upper clamping seat 1 is rotatably connected with one side of the lower clamping seat 2 through a hinge 9, connection lugs 7 are fixed on the other sides of the upper clamping seat 1 and the lower clamping seat 2, the upper clamping seat 1 and the lower clamping seat 2 can be connected with the handle control assembly 5 through mounting brackets, so that the upper clamping seat 1 and the lower clamping seat 2 are stationary relative to the handle control assembly 5, only can carry out relative rotation to can not carry out displacement motion, two sets of connecting lug 7 through with locking screw matched with mode, can be with go up cartridge 1 and lower cartridge 2 and be cylindric whole, just go up all slidable mounting has solid fixed ring 3 on the inner wall of cartridge 1 and lower cartridge 2, gu be close to on the fixed ring 3 one side of accuse subassembly 5 and be fixed with follow-up post 8, follow-up post 8's one end and the mutual inductance detector 4 fixed connection of components of a whole that can function independently structure, the output that is accuse subassembly 5 links to each other with mutual inductance detector 4 that distributes in its both sides respectively, still includes:
The centering clamping assemblies 6 are provided with a plurality of groups, the centering clamping assemblies 6 are positioned in the upper clamping seat 1 and the lower clamping seat 2, and the centering clamping assemblies 6 are circumferentially distributed on the outer wall of the fixed ring 3 and are respectively connected with the inner walls of the upper clamping seat 1 and the lower clamping seat 2;
The centering clamping assembly 6 comprises a deflection unit 61 and a clamping unit 62, one end of the deflection unit 61 is circumferentially distributed on the outer wall of the fixed ring 3, the other end of the deflection unit 61 is respectively connected with the inner walls of the upper clamping seat 1 and the lower clamping seat 2, the clamping unit 62 is arranged at one end, close to the axis of the fixed ring 3, of the deflection unit 61, and the inner wall of the clamping unit 62 is an arc surface;
The fixed ring 3, the upper clamping seat 1, the lower clamping seat 2 and the mutual inductance detector 4 are concentric.
As shown in fig. 1 to 6, as a preferred embodiment of the present invention, the deflection unit 61 includes a connection member 611, a V-shaped rotation member 612, and a mounting rod 613, the connection member 611 is circumferentially distributed on the outer wall of the fixed ring 3 and is rotatably connected with the outer wall of the fixed ring 3, the mounting rod 613 is circumferentially distributed on the inner walls of the upper and lower holders 1 and 2, the V-shaped rotation member 612 is rotatably mounted on the mounting rod 613, one end of the connection member 611 is rotatably connected with one end of the V-shaped rotation member 612, and the other end of the V-shaped rotation member 612 is mounted with the clamping unit 62.
As shown in fig. 1 to 6, as a preferred embodiment of the present invention, the clamping unit 62 includes a mounting seat 621, a guide post 622, a clamping member 623 and a spring 624, wherein the mounting seat 621 is rotatably mounted at the other end of the V-shaped rotating member 612, the guide post 622 fixedly connected to the outer wall of the clamping member 623 is slidably mounted at both the upper and lower ends of the mounting seat 621, the spring 624 is mounted between the outer wall of the clamping member 623 and the mounting seat 621, and the clamping member 623 preferably adopts an arc-shaped block structure, the inner wall of the clamping member 623 is provided with an arc-shaped surface, and anti-slip grooves 625 are distributed on the inner wall of the clamping member 623.
In this embodiment, in the original state, the fixing ring 3, the upper clamping seat 1, the lower clamping seat 2 and the mutual inductance detector 4 are all in a split state, so that the electric wire to be tested can be rapidly located inside the multiple groups of clamping elements 623 and the mutual inductance detector 4, rapid pre-positioning of the electric wire to be tested is realized, the multiple groups of clamping elements 623 are convenient to clamp the electric wire, and the mutual inductance detector 4 is convenient to detect the magnetic field intensity change when the electric wire is electrified;
when the electric wire to be tested moves to the appointed position, the upper clamping seat 1 and the lower clamping seat 2 are connected into a whole through the connecting lug plate 7, so that the electric wire to be tested can be always positioned in the inner parts of the multiple groups of clamping pieces 623 and the mutual inductance detectors 4 in the detection process, the mutual inductance detectors 4 on two sides of the control assembly 5 are driven to move in opposite directions, the mutual inductance detectors 4 on two sides synchronously drive the fixed rings 3 on the same sides of the mutual inductance detectors through the follow-up columns 8 to slide on the inner walls of the upper clamping seat 1 and the lower clamping seat 2, the fixed rings 3 can drive the connecting piece 611 on the fixed rings to move in a sliding movement mode, the connecting piece 611 can drive the V-shaped rotating piece 612 to rotate in a moving movement mode, the V-shaped rotating piece 612 drives the clamping units 62 on the V-shaped rotating piece 612 to rotate towards the direction close to the electric wire to be tested, namely, the electric wire to be tested can be centered and clamped by the multiple groups of clamping pieces 623 in a synchronous rotating mode towards the axis position of the mutual inductance detector 4, and because the mounting seat 621 is rotatable relative to the V-shaped rotating piece 612, after the inner wall of the multiple groups of clamping pieces 623 is in contact with the outer wall of the electric wire to be tested, the V-shaped rotating piece 612 drives the mounting seat 621 to continuously rotate, so that the clamping piece 623 can center and clamp the electric wire to be tested, the mounting seat 621 can be driven to rotate relative to the V-shaped rotating piece 612, the mounting seat 621 drives the clamping piece 623 to rotate, and the rotation can enable the multiple groups of clamping pieces 623 to apply tension to the two ends of the electric wire to be tested, so that the electric wire to be tested is straightened, and the electric wire to be tested is concentric with the mutual inductance detector 4;
The center position of the mutual inductance detector 4 is the optimal measurement position for detecting the electric wire to be detected, because the mutual inductance detector 4 measures current through electromagnetic induction, any behavior of the electric wire to be detected deviating from the center position of the mutual inductance detector 4 can influence the magnetic field intensity change induced by the mutual inductance detector 4, and further influence the measurement accuracy of the electric wire to be detected, so that ensuring the concentricity of the electric wire to be detected and the mutual inductance detector 4 is important, the detection accuracy of the electric wire to be detected by the mutual inductance detector 4 can be improved, and the accuracy of detection data can be ensured.
In a preferred embodiment, the connection 611 and the V-shaped rotation member 612 are each preferably a rod-like structure.
As shown in fig. 1 to 8, as a preferred embodiment of the present invention, the inside of the mutual inductance detector 4 is provided with a mounting ring groove 41, the mounting ring groove 41 is used for placing a winding structure and related sensors for detecting the electric wire to be detected, and one side of the mutual inductance detector 4 is also provided with a limiting ring groove 42 matched with the handle control assembly 5.
As shown in fig. 1, 2, 7 and 8, as a preferred embodiment of the present invention, the handle control assembly 5 includes a fixing seat 51, a connection unit 52 and a handle control unit 53, wherein the connection unit 52 and the handle control unit 53 are respectively installed at one side of the fixing seat 51, the connection unit 52 is symmetrically and slidingly installed on the fixing seat 51, one ends of two groups of connection units 52 are respectively slidingly matched with the handle control unit 53, and the other ends of two groups of connection units 52 are respectively connected with two groups of mutual inductance detectors 4 located at two sides of the fixing seat 51 and are respectively matched with two groups of limiting ring grooves 42.
As shown in fig. 1,2, 7 and 8, as a preferred embodiment of the present invention, the handle control unit 53 includes a runner 531, a screw rod 532, a lifting plate 533 and an adjusting chute 534, where the runner 531 is fixed at one end of the screw rod 532, the screw rod 532 is rotatably installed at one side of the fixed seat 51, the screw rod 532 is in threaded connection with the lifting plate 533 slidably installed at the same side of the fixed seat 51, and two groups of adjusting chutes 534 respectively slidably matched with the two groups of connecting units 52 are symmetrically opened on the lifting plate 533.
As shown in fig. 1,2, 7 and 8, as a preferred embodiment of the present invention, the inclined directions of the two sets of adjusting chutes 534 are toward the center position close to the lifting plate 533, and the two sets of adjusting chutes 534 can drive the two sets of connecting units 52 to move in directions close to each other by means of a vertically moving motion.
As shown in fig. 1,2, 7 and 8, as a preferred embodiment of the present invention, the connection unit 52 includes a traversing bar 521, an L-shaped connection post 522 and a connection ring 523, where the traversing bar 521 is symmetrically and slidably mounted on one side of the fixing base 51, two groups of L-shaped connection posts 522 are fixed on the traversing bar 521, one ends of the two groups of L-shaped connection posts 522 are respectively slidably engaged with two groups of adjusting chute 534, the other ends of the two groups of L-shaped connection posts 522 are respectively connected with two groups of mutual inductance detectors 4 located on two sides of the fixing base 51, and a connection ring 523 engaged with the limiting ring groove 42 is fixed on the other ends of the two groups of L-shaped connection posts 522.
In this embodiment, when the wire to be tested moves to the designated position, the runner 531 drives the lead screw 532 to rotate, the lead screw 532 can drive the lifting plate 533 to move vertically on the fixed seat 51 in a rotating movement mode, the lifting plate 533 drives the L-shaped connecting posts 522 on two sides to move towards directions close to each other through the adjusting chute 534, the L-shaped connecting posts 522 on two sides drive the mutual inductance detectors 4 on two sides to move towards each other through the connecting ring 523, so that the mutual inductance detectors 4 on two sides synchronously drive the fixed ring 3 on the same side thereof through the follow-up posts 8, and further drive the centering clamping assemblies 6 on two sides through the fixed ring 3 to perform centering clamping on the wire to be tested, straighten two ends of the wire to be tested, ensure concentricity of the wire to be tested and the mutual inductance detectors 4, which is important for ensuring the detection accuracy of the wire to be tested and the mutual inductance detectors 4, and ensuring the accuracy of detection data.
In a preferred embodiment, the other side of the fixing seat 51 is connected to the upper holder 1 and the lower holder 2 through a mounting bracket, so that the upper holder 1 and the lower holder 2 are always in a stationary state relative to the fixing seat 51, that is, the upper holder 1 and the lower holder 2 can only rotate relatively and cannot perform displacement movement, and the other side of the fixing seat 51 can be provided with a hand-held handle or a strap according to actual needs, so that a user can conveniently move or use the detection device.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The utility model provides a distribution network trouble match detection device, includes accuse subassembly, control the both sides of subassembly and all install the last holder and lower holder of ring structure, one side of going up the holder is rotated with one side of lower holder through the hinge and is connected, go up the holder and the opposite side of lower holder all are fixed with the engaging lug board, just go up the holder and the lower holder all link to each other through the installing support with accuse subassembly, two sets of engaging lug board will go up holder and lower holder and be cylindric whole through the mode with locking screw matched with, just go up all slidable mounting on the inner wall of holder and lower holder and have solid fixed ring, be close to on the solid fixed ring to one side of accuse subassembly and be fixed with the follow-up post, the one end of follow-up post links to each other with the mutual inductance detector fixed connection of split structure, the output that is controlling the subassembly links to each other with the mutual inductance detector that distributes in its both sides respectively, its characterized in that still includes:
The centering clamping assemblies are provided with a plurality of groups, the centering clamping assemblies are positioned in the upper clamping seat and the lower clamping seat, and the centering clamping assemblies are circumferentially distributed on the outer wall of the fixed ring and are respectively connected with the inner walls of the upper clamping seat and the lower clamping seat;
The centering clamping assembly comprises a deflection unit and a clamping unit, one end of the deflection unit is circumferentially distributed on the outer wall of the fixed ring, the other end of the deflection unit is respectively connected with the inner walls of the upper clamping seat and the lower clamping seat, the clamping unit is rotatably installed at one end, close to the axis of the fixed ring, of the deflection unit, and the inner wall of the clamping unit is an arc-shaped surface;
the fixed ring, the upper clamping seat, the lower clamping seat and the mutual inductance detector are concentric;
When the electric wire to be tested of the power distribution network needs to be tested, the fixing ring, the upper clamping seat, the lower clamping seat and the mutual inductance detector are arranged in the multiple groups of clamping units in a relatively rotating mode, the connecting lug plates connect the upper clamping seat and the lower clamping seat into a whole, the mutual inductance detectors on two sides of the control assembly are driven to move in opposite directions, the mutual inductance detectors on two sides simultaneously drive the fixing ring on the same side of the control assembly to slide on the inner walls of the upper clamping seat and the lower clamping seat, the fixing ring drives the multiple groups of deflection units which are circumferentially distributed on the fixing ring to rotate simultaneously in a sliding mode, the multiple groups of deflection units drive the clamping units on the fixing ring to rotate simultaneously in a direction close to the electric wire to be tested, the multiple groups of clamping units clamp the electric wire to be tested in a centering mode and straighten two ends of the electric wire to be tested in a simultaneous rotating mode, and the electric wire to be tested is concentric with the mutual inductance detectors in a centering mode and the two ends of the electric wire to be tested.
2. The distribution network fault matching detection device of claim 1, wherein the deflection unit comprises:
The connecting pieces are circumferentially distributed on the outer wall of the fixed ring and are rotationally connected with the outer wall of the fixed ring;
mounting rods circumferentially distributed on the inner walls of the upper clamping seat and the lower clamping seat; and
The V-shaped rotating piece is rotatably arranged on the mounting rod, one end of the V-shaped rotating piece is rotatably connected with the connecting piece, and the clamping unit is rotatably arranged at the other end of the V-shaped rotating piece.
3. The power distribution network fault matching detection device of claim 2, wherein the clamping unit comprises:
the mounting seat is rotatably arranged at the other end of the V-shaped rotating piece;
Guide posts are slidably arranged at the upper end and the lower end of the mounting seat; and
The clamping piece is fixed on one side of the guide post, a spring is arranged between the outer wall of the clamping piece and the mounting seat, the clamping piece adopts an arc-shaped block structure, the inner wall of the clamping piece is provided with an arc-shaped surface, and anti-slip grooves are distributed on the inner wall of the clamping piece.
4. The power distribution network fault matching detection device according to claim 1, wherein an installation ring groove is formed in the mutual inductance detector, the installation ring groove is used for placing a winding structure and a sensor for detecting an electric wire to be detected, and a limit ring groove matched with the handle control assembly is further formed in one side of the mutual inductance detector.
5. The power distribution network fault matching detection device of claim 4, wherein the handle control assembly comprises:
the fixed seat is positioned between the two groups of mutual inductance detectors;
A handle control unit arranged at one side of the fixed seat; and
Two groups of connecting units which are symmetrically and slidably arranged on the fixing seat, one ends of the two groups of connecting units are in sliding fit with the handle control unit, and the other ends of the two groups of connecting units are respectively connected with two groups of mutual inductance detectors positioned on two sides of the fixing seat and are respectively matched with the two groups of limiting ring grooves.
6. The power distribution network fault matching detection device of claim 5, wherein the handle control unit comprises:
the screw rod is rotatably arranged on one side of the fixed seat, and a rotating wheel is fixed at one end of the screw rod; and
The lifting plate is slidably mounted on one side of the fixing seat and is in threaded connection with the screw rod, and two groups of adjusting chute which are respectively in sliding fit with the two groups of connecting units are symmetrically arranged on the lifting plate.
7. The power distribution network fault matching detection device according to claim 6, wherein the inclined directions of the two groups of the adjusting chute face to the central position close to the lifting plate, and the two groups of the adjusting chute drive the two groups of the connecting units to move towards the direction close to each other through a vertically moving movement mode.
8. The power distribution network fault matching detection device of claim 7, wherein the connection unit comprises:
the transverse moving strip is symmetrically and slidably arranged at one side of the fixed seat; and
Two groups of L-shaped connecting columns respectively fixed on the two groups of transverse moving strips, one ends of the two groups of L-shaped connecting columns are respectively in sliding fit with the two groups of adjusting chute, the other ends of the two groups of L-shaped connecting columns are respectively connected with two groups of mutual inductance detectors positioned on two sides of the fixing seat, and connecting rings matched with the limiting ring grooves are respectively fixed on the other ends of the two groups of L-shaped connecting columns.
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| CN111693749A (en) * | 2020-06-23 | 2020-09-22 | 广东电网有限责任公司 | Distribution network fault positioning detection device |
| CN220340320U (en) * | 2023-07-27 | 2024-01-12 | 杭州华创高科有限公司 | Fault indicator with temperature alarm function |
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| CN111693749A (en) * | 2020-06-23 | 2020-09-22 | 广东电网有限责任公司 | Distribution network fault positioning detection device |
| CN220340320U (en) * | 2023-07-27 | 2024-01-12 | 杭州华创高科有限公司 | Fault indicator with temperature alarm function |
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