CN111624541A - Calibration device of ground fault detection device - Google Patents
Calibration device of ground fault detection device Download PDFInfo
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- CN111624541A CN111624541A CN202010458180.3A CN202010458180A CN111624541A CN 111624541 A CN111624541 A CN 111624541A CN 202010458180 A CN202010458180 A CN 202010458180A CN 111624541 A CN111624541 A CN 111624541A
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- fixing plate
- electric telescopic
- plate
- telescopic rod
- fixedly connected
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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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
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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
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
Abstract
The invention discloses a calibration device of a ground fault detection device, which comprises a first fixing plate and a second fixing plate, wherein the cross sections of the first fixing plate and the second fixing plate are semi-annular, a plurality of aligned through holes are formed in the surface of the first fixing plate, a shell aligned with the through holes is arranged on the periphery of the first fixing plate, a first electric telescopic rod is arranged inside the shell, the telescopic end of the first electric telescopic rod is fixedly connected with the second fixing plate, clamping mechanisms are arranged on the inner peripheries of the first fixing plate and the second fixing plate, a circle of guide rail is arranged on the peripheries of the first fixing plate and the second fixing plate, a plurality of linear motors are arranged on the guide rail, a second electric telescopic rod is arranged on the linear motors, a hanging mechanism is arranged at the telescopic end of the second electric telescopic rod, driving mechanisms are arranged on the first fixing plate and the second fixing plate, a detection mechanism for detecting fault points of a power transmission, the power transmission lines in different directions can be moved according to requirements, and detection of different power transmission lines is achieved.
Description
Technical Field
The invention relates to a transmission line fault detection device, in particular to a calibration device of a ground fault detection device.
Background
The conventional power transmission line fault detection device outputs a pulsating direct current signal to a fault line of a transmitter, and current flows through the fault line and flows into the ground at a fault point. The sensor is hung on a detected line, detects the current on the line and transmits the acquired signal to the receiver in a wireless mode. The receiver receives the signal sent by the sensor in a wireless mode, the measured data is visually displayed on the liquid crystal screen, before the fault point, the current continuously exists, after the fault point, the current disappears, the fault point is searched according to the current change, the function of fault location is realized, but when the fault location device is actually used, because the power transmission line is not only a single power transmission line, the power transmission line to be detected needs to be replaced by manual operation, the use is troublesome, and the power transmission line can not be switched to different power transmission lines for detection according to the requirement, because the power transmission line is often located the high sky, it is too troublesome to utilize the manual work to install, in addition, because often can be because the installation quality is too poor when using, lead to the contained angle between this device and the power transmission line too big, caused the straightness that hangs down to receive serious influence to lead to follow-up can not be with the better installation of this device on the power transmission line.
Disclosure of Invention
The invention aims to solve the problem that the position and the angle of the device can be adjusted as required before the device is used, the device can climb to different heights of a power transmission pole as required to detect a plurality of power transmission lines, and the device can move to different power transmission line positions in different directions as required, so that the detection of different power transmission lines is realized.
The invention relates to a calibration device of a ground fault detection device, which comprises a first fixing plate and a second fixing plate, wherein the cross sections of the first fixing plate and the second fixing plate are semi-annular, a plurality of aligned through holes are formed in the surface of the first fixing plate, a shell aligned with the through holes is arranged on the periphery of the first fixing plate, a first electric telescopic rod fixedly connected with the shell is arranged inside the shell, the telescopic end of the first electric telescopic rod is fixedly connected with the end part of the second fixing plate, clamping mechanisms are arranged on the inner peripheries of the first fixing plate and the second fixing plate, a circle of first guide rail is arranged on the peripheries of the first fixing plate and the second fixing plate, a plurality of first linear motors are arranged on the first guide rail, a second electric telescopic rod is arranged on the first linear motor, a hanging mechanism is arranged on the telescopic end of the second electric telescopic rod, and driving mechanisms are arranged on the first fixing plate and the second fixing plate, the first fixing plate is provided with a detection mechanism for detecting a fault point of the power transmission line, the detection mechanism further comprises an elastic plate, the top of the elastic plate is provided with a protrusion, the top of the protrusion is provided with a second guide rail, the second guide rail is provided with a second linear motor, the top of the second linear motor is provided with a connecting mechanism connected with the first fixing plate, two sides of the elastic plate are provided with first driving motors fixedly connected with the elastic plate, the output end of each first driving motor is provided with a roller, the elastic plate is provided with a locking mechanism for locking the power transmission line pole, the bottom of the elastic plate is provided with a pipeline fixedly connected with the elastic plate, the inner wall of the pipeline is provided with a plurality of first conducting strips arranged at intervals, the surface of the elastic plate is provided with a plurality of bulbs, different bulbs are electrically connected with the first conducting strips, and the bottom of the elastic plate is provided, the hanging rope is provided with a second conducting strip, the first conducting strip, the second conducting strip and the bulb are electrically connected, the bulb, the first driving motor, the first electric telescopic rod, the first linear motor, the second electric telescopic rod and the driving mechanism are all electrically connected with an external power supply, and the first driving motor, the first electric telescopic rod, the first linear motor, the second electric telescopic rod and the driving mechanism are all controlled through external signals.
Furthermore, the clamping mechanism comprises a plurality of pressing plates with elasticity, and the pressing plates are fixedly connected with the inner walls of the two sides of the first fixing plate and the second fixing plate respectively.
Further, articulate the mechanism and include that the cross-section is first fixture block and second fixture block of semi-annular, be equipped with fixed connection's dead lever on second electric telescopic handle's the flexible end, it is adjacent on the second electric telescopic handle the dead lever orientation is opposite, first fixture block and one of them on the second electric telescopic handle dead lever fixed connection, second fixture block and another on the second electric telescopic handle dead lever fixed connection, first fixture block with the second fixture block is reverse setting.
Furthermore, actuating mechanism includes a plurality of bracing pieces, be equipped with second driving motor on the bracing piece, one of them the bracing piece with first fixed plate fixed connection, another the bracing piece with second fixed plate fixed connection, second driving motor's output is equipped with first wheel, second driving motor is connected with external power supply electricity.
Further, detection mechanism includes first current sensor, second current sensor, transmitter and receiver, be equipped with branch on the first fixed plate, the other end of branch is equipped with first backup pad, first current sensor locates on the first backup pad, be equipped with third electric telescopic handle in the first backup pad, the flexible end of third electric telescopic handle is equipped with the second backup pad, be equipped with in the second backup pad second current sensor, the transmitter is connected with the power transmission line electricity, first current sensor and second current sensor respectively with receiver signal connection.
Further, still include the controller, the controller is located the second fixed plate is inboard, the controller respectively with first driving motor, first electric telescopic handle, first linear electric motor, second electric telescopic handle and second driving motor signal connection, the controller is connected with external power supply electricity.
Furthermore, the periphery of the first wheel is provided with a circle of groove.
Further, coupling mechanism includes the fixed block and locates lug on the first fixed plate, the fixed block with second linear electric motor's top fixed connection, the surface of fixed block is equipped with fixed connection's sleeve with it, the lug with sleeve looks joint, the sleeve with interference fit between the lug.
Further, locking mechanism includes a plurality of ropes and locates a plurality of solid fixed rings of elastic plate one side, the one end of rope with elastic plate fixed connection, the rope winding is in gu fixed ring is last, the surface of rope is equipped with a plurality of second wheels.
Further, the space between the first conducting strips is provided with an insulating sheet, the insulating sheet is fixedly connected with the inner wall of the pipeline, and four corners of the second conducting strip are provided with conducting bulges.
The invention has the beneficial effects that:
the calibration device of the ground fault detection device of the invention is characterized in that before detection, the second conducting strip is contacted with the first conducting strip through the inclination between the hanging rope and the vertical shaft, when one of the bulbs is electrified and lightened, the calibration device can be adjusted according to the direction corresponding to each bulb, so as to realize the calibration and adjustment of levelness, when the detection of a fault point is needed, the calibration device firstly locks the power transmission pole through the cooperation of the elastic plate and the locking mechanism, then drives the roller through the first driving motor, so that the calibration device can move upwards on the power transmission pole, when the calibration device moves to a position which is level with the power transmission line, the first fixing plate and the second fixing plate can be butted with the power transmission line through the movement of the second linear motor on the second guide rail, the trouble of manual operation is greatly reduced, the device is also suitable for power transmission poles with different heights, the first fixing plate and the second fixing plate enclose the power transmission line, then the first electric telescopic rod is contracted to ensure that the distance between the first fixing plate and the second fixing plate is gradually reduced until the first fixing plate and the second fixing plate are fixed together, then the first power transmission line to be detected can be clamped through the clamping mechanism, the shaking is reduced, the power transmission line on the power transmission line is generally uniformly distributed, the hooking mechanism can be hooked on another power transmission line above the fixed power transmission line through the extension of the second electric telescopic rod, so that the device can be effectively stabilized, and then the power transmission line in the fixed state can be detected as a fault point through the matching of the detection mechanism and the driving mechanism, in addition, when different power transmission lines need to be detected, the connecting mechanism can be separated, when the power transmission lines need to be detected, the second electric telescopic rod contracts and is separated from the hooked power transmission line, the linear motor is controlled to move on the guide rail through an external control signal, when the power transmission lines move to a proper angle, the hooking mechanism can be hooked on another power transmission line above the power transmission line to be detected through the extension of the second electric telescopic rod, then the first fixing plate and the second fixing plate are separated from the first detected power transmission line through the extension of the first electric telescopic rod, due to the action of gravity, the second electric telescopic rod can be in a sagging state on another power transmission line above the power transmission line to be detected, and then the power transmission line to be detected can be clamped through the matching of the first fixing plate, the second fixing plate and the first electric telescopic rod, then the transmission line to be detected is clamped through the clamping mechanism, the situation of shaking is reduced, at the moment, the transmission line in a fixed state can be detected through the matching of the detection mechanism and the driving mechanism, the transmission line at different positions can be detected through the device, and the transmission line can be switched to different transmission lines according to actual needs, so that the transmission line can be switched in the vertical direction, and can be directionally switched to different transmission lines in different directions to perform detection, and the detection efficiency and the use flexibility are effectively improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a perspective view of a first view of a calibration device of a ground fault detection apparatus of the present invention;
FIG. 2 is a perspective view of a second view of a calibration device of the ground fault detection apparatus of the present invention;
fig. 3 is a structural view of the inside of a pipe of a verifying unit of a ground fault detecting apparatus according to the present invention.
In the drawings, 1 is a first fixing plate, 2 is a second fixing plate, 3 is a through hole, 4 is a housing, 5 is a first electric telescopic rod, 6 is a first guide rail, 7 is a first linear motor, 8 is a second electric telescopic rod, 9 is a pressing plate, 10 is a second supporting plate, 11 is a controller, 12 is a groove, 13 is a first fixture, 14 is a second fixture, 15 is a fixing rod, 16 is a supporting rod, 17 is a second driving motor, 18 is a first wheel, 19 is a first current sensor, 20 is a second current sensor, 21 is a transmitter, 22 is a receiver, 23 is a supporting rod, 24 is a first supporting plate, 25 is a third electric telescopic rod, 26 is an elastic plate, 27 is a protrusion, 28 is a second guide rail, 29 is a second linear motor, 30 is a first driving motor, 31 is a roller, 32 is a fixing block, 33 is a protrusion, 34 is a sleeve, 35 is a rope, 36 is a fixing ring, 37 is a second wheel, 38 is a pipe, 39 is a first conductive sheet, 40 is a bulb, 41 is a hanging rope, 42 is a second conductive sheet, 43 is an insulating sheet, and 44 is a conductive protrusion.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the calibration apparatus for a ground fault detection apparatus of the present invention includes a first fixing plate 1 and a second fixing plate 2, both of which have semi-circular cross sections, a plurality of aligned through holes 3 are formed on a surface of the first fixing plate 1, a housing 4 aligned with the through holes 3 is formed on an outer periphery of the first fixing plate 1, a first electric telescopic rod 5 fixedly connected to the housing 4 is disposed inside the housing 4, a telescopic end of the first electric telescopic rod 5 is fixedly connected to an end of the second fixing plate 2, a clamping mechanism is disposed on inner peripheries of the first fixing plate 1 and the second fixing plate 2, a circle of first guide rail 6 is disposed on outer peripheries of the first fixing plate 1 and the second fixing plate 2, a plurality of first linear motors 7 are disposed on the first guide rail 6, a second electric telescopic rod 8 is disposed on the first linear motor 7, and a hanging mechanism is disposed on a telescopic end of the second electric telescopic rod 8, the first fixing plate 1 and the second fixing plate 2 are both provided with a driving mechanism, the first fixing plate 1 is provided with a detection mechanism for detecting a fault point of the power transmission line, the first fixing plate 1 further comprises an elastic plate 26, the top of the elastic plate 26 is provided with a protrusion 27, the top of the protrusion 27 is provided with a second guide rail 28, the second guide rail 28 is provided with a second linear motor 29, the top of the second linear motor 29 is provided with a connecting mechanism connected with the first fixing plate 1, two sides of the elastic plate 26 are provided with first driving motors 30 fixedly connected with the elastic plate 26, the output end of the first driving motor 30 is provided with a roller 31, the elastic plate 26 is provided with a locking mechanism for locking the power transmission line pole, the bottom of the elastic plate 26 is provided with a pipeline 38 fixedly connected with the elastic plate, the inner wall of the pipeline 38 is provided with a plurality of first conducting strips 39 arranged at intervals, the surface of the elastic plate 26 is provided with a, different bulbs 40 are electrically connected with the first conducting strip 39, a hanging rope 41 is arranged at the bottom of the elastic plate 26, a second conducting strip 42 is arranged on the hanging rope 41, the first conducting strip 39, the second conducting strip 42 and the bulbs 40 are electrically connected, the bulbs 40, the first driving motor 30, the first electric telescopic rod 5, the first linear motor 7, the second linear motor 29, the second electric telescopic rod 8 and the driving mechanism are all electrically connected with an external power supply, the first driving motor 30, the first electric telescopic rod 5, the first linear motor 7, the second linear motor 29, the second electric telescopic rod 8 and the driving mechanism are all controlled by external signals, before detection is carried out, the second conducting strip 42 is contacted with the first conducting strip 39 through the inclination between the hanging rope 41 and a vertical shaft, when one of the bulbs 40 is electrified and lightened, the device can be adjusted according to the corresponding direction of each bulb 40, so as to realize levelness verification and adjustment work, when the detection of a fault point needs to be carried out, the device is firstly locked on a power transmission pole by the cooperation of the elastic plate 26 and the locking mechanism, then the roller 31 is driven by the first driving motor 30, so that the device can move upwards on the power transmission pole, when the device moves to a position flush with the power transmission line, the first fixing plate 1 and the second fixing plate 2 can be butted with the power transmission line by the movement of the second linear motor 29 on the second guide rail 28, the manual operation trouble is greatly reduced, and the device can also be suitable for power transmission poles with different heights, the power transmission line is surrounded by the first fixing plate 1 and the second fixing plate 2, then, the first electric telescopic rod 5 is contracted to gradually reduce the distance between the first fixing plate 1 and the second fixing plate 2 until the first fixing plate and the second fixing plate are fixed together, then the first power transmission line to be detected can be clamped through the clamping mechanism, the shaking situation is reduced, as the power transmission lines on the power transmission line are generally uniformly distributed, the hanging mechanism can be hung on the other power transmission line above the power transmission line in the fixed state through the extension of the second electric telescopic rod 8, so that the device can be effectively stabilized, then the fault point detection can be carried out on the power transmission line in the fixed state through the matching of the detection mechanism and the driving mechanism, in addition, when the device is driven by the driving mechanism, the connection mechanism can be separated, when different power transmission lines need to be detected, the second electric telescopic rod 8 contracts and is separated from the hooked power transmission line, the linear motor is controlled to move on the guide rail through an external control signal, when the linear motor moves to a proper angle, the hooking mechanism can be hooked on another power transmission line above the power transmission line to be detected through the extension of the second electric telescopic rod 8, then the first electric telescopic rod 5 extends to separate the first fixing plate 1 from the second fixing plate 2 and separate the first power transmission line to be detected, the second electric telescopic rod 8 can be in a sagging state on the other power transmission line above the power transmission line to be detected due to the action of gravity, then the power transmission line to be detected can be clamped through the matching of the first fixing plate 1, the second fixing plate 2 and the first electric telescopic rod 5, and then the power transmission line to be detected is clamped through the clamping mechanism, the situation that rocks appears in the reduction takes place, then at this moment, then can be through detection mechanism with actuating mechanism's cooperation carries out the detection of fault point to being in the power transmission line under the fixed state, through the use of this device, can detect the power transmission line that is located different positions, and can switch to different power transmission lines according to actual need in addition, not only can carry out the switching of power transmission line in the vertical direction, can also face the not equidirectional orientation of going on to switch to different power transmission lines and carry out detection achievement, effectively improved detection efficiency and flexibility of use.
Specifically, chucking mechanism includes a plurality of elastic clamp plates 9 that have, clamp plate 9 respectively with first fixed plate 1 and the both sides inner wall fixed connection of second fixed plate 2, through the effect of clamp plate 9 is followed as the power transmission line first fixed plate 1 and when the breach between the second fixed plate 2 entered, can pass through clamp plate 9 blocks the power transmission line comparatively stably.
Specifically, the hanging mechanism includes a first fixture block 13 and a second fixture block 14, the cross section of which is semi-annular, a fixing rod 15 is provided at the telescopic end of the second electric telescopic rod 8, the fixing rods 15 of the adjacent second electric telescopic rods 8 are opposite in direction, the first fixture block 13 is fixedly connected to the fixing rod 15 of one of the second electric telescopic rods 8, the second fixture block 14 is fixedly connected to the fixing rod 15 of the other second electric telescopic rod 8, the first fixture block 13 and the second fixture block 14 are arranged in opposite directions, when hanging work is required, the second electric telescopic rod 8 of one of the first linear motors 7 extends to separate the first fixture block 13 from the power transmission line, and then the first linear motor 7 moves on the guide rail, when the first linear motor 7 moves to a proper position, the first clamping block 13 can be hung on a power transmission line through the extension of the second electric telescopic rod 8, then the other first linear motor 7 moves to the side surface of one first linear motor 7 on the guide rail, and then the second clamping block 14 can move to the first clamping block 13 through the extension of the second electric telescopic rod 8 on the other first linear motor 7, and meanwhile, the power transmission line can be clamped through the cooperation of the second clamping block 14 and the first clamping block 13, so that the slipping of the device is avoided.
Specifically, actuating mechanism includes a plurality of bracing pieces 16, be equipped with second driving motor 17 on the bracing piece 16, one of them bracing piece 16 with 1 fixed connection of first fixed plate, another bracing piece 16 with 2 fixed connection of second fixed plate, the output of second driving motor 17 is equipped with first wheel 18, second driving motor 17 is connected with external power supply electricity, through the cooperation of second driving motor 17 and first wheel 18, can make this device come and go back the motion on the power transmission line to conveniently adjust and detect the position.
Specifically, the detection mechanism includes a first current sensor 19, a second current sensor 20, a transmitter 21 and a receiver 22, a support rod 23 is arranged on the first fixing plate 1, a first support plate 24 is arranged at the other end of the support rod 23, the first current sensor 19 is arranged on the first support plate 24, a third electric telescopic rod 25 is arranged on the first support plate 24, a second support plate 10 is arranged at the telescopic end of the third electric telescopic rod 25, the second current sensor 20 is arranged on the second support plate 10, the transmitter 21 is electrically connected with a power transmission line, the first current sensor 19 and the second current sensor 20 are respectively in signal connection with the receiver 22, and the first current sensor 19, the first support plate 24, the second current sensor 20, The transmitter 21 and the receiver 22 are coupled to detect a fault point of the fixed power transmission line, and the first support plate 24, the third electric telescopic rod 25, the second support plate 10 and the second current sensor 20 are coupled to detect a fault point of the hooked power transmission line.
Specifically, still include controller 11, controller 11 is located 2 inboards of second fixed plate, controller 11 respectively with first driving motor 30, first electric telescopic handle 5, first linear electric motor 7, second linear electric motor 29, second electric telescopic handle 8 and second driving motor 17 signal connection, controller 11 is connected with external power supply electricity, through controller 11's control effect can make this device degree of automation higher, and work efficiency is higher.
Specifically, the periphery of the first wheel 18 is provided with a circle of grooves 12, so that the power transmission line can be effectively clamped.
Specifically, the connecting mechanism comprises a fixing block 32 and a projection 33 arranged on the first fixing plate 1, the fixed block 32 is fixedly connected with the top of the second linear motor 29, a sleeve 34 fixedly connected with the fixed block 32 is arranged on the surface of the fixed block 32, the lug 33 is clamped with the sleeve 34, the sleeve 34 is in interference fit with the lug 33, and through the fit between the lug 33 and the sleeve 34, when the second driving motor 17 drives the first wheel 18 to move on the power line, the lug 33 and the sleeve 34 are gradually separated, thereby reducing the weight of the device on the power transmission line and facilitating the operation of the device, and simultaneously, after the detection operation is finished, through the butt joint between the lug 33 and the sleeve 34, the device can then be recovered by driving the first wheel 18 by the second drive motor 17.
Specifically, locking mechanism includes a plurality of ropes 35 and locates a plurality of solid fixed rings 36 of elastic plate 26 one side, the one end of rope 35 with elastic plate 26 fixed connection, rope 35 twines in gu fixed ring 36 is last, the surface of rope 35 is equipped with a plurality of second wheels 37, through rope 35 with gu fixed ring 36's cooperation, can conveniently fix this device on the transmission pole, and through second wheels 37 with gyro wheel 31's cooperation then can make things convenient for this device to move on the transmission pole.
Specifically, the gap between the first conducting strips 39 is provided with an insulating sheet 43, the insulating sheet 43 is fixedly connected with the inner wall of the pipeline 38, the four corners of the second conducting strip 42 are respectively provided with a conducting protrusion 44, through the blocking effect of the insulating sheet 43 and the effect of the conducting protrusion 44 on the second conducting strip 42, when the hanging rope 41 deviates from a vertical shaft, if one of the conducting protrusions 44 is in contact with the first conducting strip 39 and is electrified, the installation angle of the device can be adjusted first, after the adjustment is completed, if the hanging rope 41 continuously deviates from the vertical shaft, one of the conducting protrusions 44 is in contact with the first conducting strip 39 and is electrified, so that the installation angle of the device can be further adjusted, the device can be in a horizontal state as much as possible when being installed, the problem that the power transmission line cannot be clamped through the first fixing plate 1 and the second fixing plate 2 due to the installation angle is reduced, and the adjustment precision is better, can adjust gradually, reduces once adjustment range too big and cause the adjustment work to appear great error.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A calibration device of a ground fault detection device is characterized by comprising a first fixing plate and a second fixing plate, wherein the cross sections of the first fixing plate and the second fixing plate are semi-annular, a plurality of aligned through holes are formed in the surface of the first fixing plate, a shell is arranged on the periphery of the first fixing plate and aligned with the through holes, a first electric telescopic rod is fixedly connected with the shell and arranged inside the shell, the telescopic end of the first electric telescopic rod is fixedly connected with the end portion of the second fixing plate, clamping mechanisms are arranged on the inner peripheries of the first fixing plate and the second fixing plate, a circle of first guide rail is arranged on the peripheries of the first fixing plate and the second fixing plate, a plurality of first linear motors are arranged on the first guide rail, a second electric telescopic rod is arranged on the first linear motor, a hanging mechanism is arranged on the telescopic end of the second electric telescopic rod, and driving mechanisms are arranged on the first fixing plate and the second fixing plate, the first fixing plate is provided with a detection mechanism for detecting a fault point of the power transmission line, the detection mechanism further comprises an elastic plate, the top of the elastic plate is provided with a protrusion, the top of the protrusion is provided with a second guide rail, the second guide rail is provided with a second linear motor, the top of the second linear motor is provided with a connecting mechanism connected with the first fixing plate, two sides of the elastic plate are provided with first driving motors fixedly connected with the elastic plate, the output end of each first driving motor is provided with a roller, the elastic plate is provided with a locking mechanism for locking the power transmission line pole, the bottom of the elastic plate is provided with a pipeline fixedly connected with the elastic plate, the inner wall of the pipeline is provided with a plurality of first conducting strips arranged at intervals, the surface of the elastic plate is provided with a plurality of bulbs, different bulbs are electrically connected with the first conducting strips, and the bottom of the elastic plate is provided, the hanging rope is provided with a second conducting strip, the first conducting strip, the second conducting strip and the bulb are electrically connected, the bulb, the first driving motor, the first electric telescopic rod, the first linear motor, the second electric telescopic rod and the driving mechanism are all electrically connected with an external power supply, and the first driving motor, the first electric telescopic rod, the first linear motor, the second electric telescopic rod and the driving mechanism are all controlled through external signals.
2. The calibration device for the ground fault detection device according to claim 1, wherein the clamping mechanism comprises a plurality of elastic pressing plates, and the pressing plates are fixedly connected with inner walls of two sides of the first fixing plate and the second fixing plate respectively.
3. The calibration device of claim 1, wherein the hooking mechanism comprises a first fixture block and a second fixture block with semi-circular cross-sections, the telescopic end of the second electric telescopic rod is provided with a fixing rod fixedly connected with the second electric telescopic rod, the fixing rods on the adjacent second electric telescopic rods are opposite in orientation, the first fixture block is fixedly connected with the fixing rod on one of the second electric telescopic rods, the second fixture block is fixedly connected with the fixing rod on the other second electric telescopic rod, and the first fixture block and the second fixture block are arranged in opposite directions.
4. The calibration device of claim 1, wherein the driving mechanism comprises a plurality of support rods, the support rods are provided with second driving motors, one of the support rods is fixedly connected with the first fixing plate, the other support rod is fixedly connected with the second fixing plate, the output end of the second driving motor is provided with a first wheel, and the second driving motor is electrically connected with an external power supply.
5. The calibration device of claim 1, wherein the detection mechanism comprises a first current sensor, a second current sensor, a transmitter and a receiver, a support rod is disposed on the first fixing plate, a first support plate is disposed at the other end of the support rod, the first current sensor is disposed on the first support plate, a third electric telescopic rod is disposed on the first support plate, a second support plate is disposed at the telescopic end of the third electric telescopic rod, the second current sensor is disposed on the second support plate, the transmitter is electrically connected to the power transmission line, and the first current sensor and the second current sensor are respectively in signal connection with the receiver.
6. The calibration device for the ground fault detection device according to claim 5, further comprising a controller, wherein the controller is disposed inside the second fixing plate, the controller is in signal connection with the first driving motor, the first electric telescopic rod, the first linear motor, the second electric telescopic rod and the second driving motor, and the controller is electrically connected with an external power source.
7. A verification device for a ground fault detection apparatus as claimed in claim 6, wherein the outer periphery of said first wheel is provided with a ring of grooves.
8. The calibration device of the ground fault detection device according to claim 6, wherein the connection mechanism comprises a fixed block and a convex block arranged on the first fixed plate, the fixed block is fixedly connected with the top of the second linear motor, a sleeve fixedly connected with the fixed block is arranged on the surface of the fixed block, the convex block is clamped with the sleeve, and the sleeve and the convex block are in interference fit.
9. The apparatus according to claim 6, wherein the locking mechanism comprises a plurality of ropes and a plurality of fixing rings disposed on one side of the elastic plate, one end of each rope is fixedly connected to the elastic plate, the ropes are wound around the fixing rings, and a plurality of second wheels are disposed on the surface of each rope.
10. The apparatus of claim 1, wherein an insulating plate is disposed in the gap between the first conductive plates, the insulating plate is fixedly connected to the inner wall of the pipeline, and each of the four corners of the second conductive plate is provided with a conductive protrusion.
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| CN111624541B (en) | 2022-04-19 |
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