CN218213370U

CN218213370U - Electric leakage detection device for electric power construction

Info

Publication number: CN218213370U
Application number: CN202222077720.0U
Authority: CN
Inventors: 罗焱彬; 陈勇; 李治威
Original assignee: Sichuan Jinxing Electric Power Design Consulting Co ltd
Current assignee: Sichuan Jinxing Electric Power Design Consulting Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-01-03
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses an electric leakage detection device for electric power construction, including non-contact detection mechanism, mechanism and shell that opens and shuts, non-contact detection mechanism includes: the magnetic circuit comprises a first magnetic conductive ring, a second magnetic conductive ring and a magnetic core, wherein the first magnetic conductive ring is a U-shaped magnetic ring, and a coil is wound on the first magnetic conductive ring; the second magnetic conduction ring is a semicircular magnetic ring; the control board is electrically connected with the coil; the opening and closing mechanism comprises a movable block, the second magnetic conduction ring is fixed on the movable block, and a sliding rod is integrally formed on the right side of the lower end of the movable block; the shell comprises a lower shell and an upper shell, the first magnetic conduction ring is fixed at the front parts of the lower shell and the upper shell, and the sliding rod is connected in the lower shell and the upper shell in a sliding mode. The utility model discloses a current magnitude that the setting can detect the earth connection circulation of overhead tower determines whether overhead power line is to built on stilts electric leakage, can realize online non-contact measurement, and then can judge whether there is electric leakage phenomenon.

Description

Electric leakage detection device for electric power construction

Technical Field

The utility model relates to an electric power construction detection device technical field especially relates to an electric leakage detection device for electric power construction.

Background

In the electric power construction process, need install some supervisory equipment or alarm equipment on the overhead tower of power line additional usually, need the workman to climb the construction position on the overhead tower and install when installing, need detect before installing whether there is the electric leakage phenomenon power line to the overhead tower between, and then guarantee constructor's safety, can also accomplish the electric leakage detection to power line simultaneously, in time discover the problem, and then guarantee electric power system's safety and stability operation.

For the detection of the electric leakage of the power line, the change situation of the current value monitored on the relay protection system is mostly used for determining whether the electric leakage phenomenon exists or not by means of comparison between an algorithm and a typical fault current value, but because the load on the power line is changed constantly, when the electric leakage phenomenon generated by the power line passing through an overhead tower is not serious, the electric leakage phenomenon can be mistakenly recognized as normal electric power fluctuation by the relay protection circuit, and the protection action cannot be carried out.

The common leakage detection equipment detects the resistance value between a lead and an object to be detected, when the resistance value is large enough, the insulation between the lead and the object to be detected is good, the leakage phenomenon does not exist, but the method is obviously not suitable for the overhead power line which runs at any time; therefore, there is a need for a non-contact leakage detection device capable of detecting whether or not there is a leakage phenomenon between an overhead power line and an overhead tower in a normal power-on state of the overhead power line.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the electric leakage detection device for electric power construction who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an electric leakage detection device for electric power construction, includes non-contact detection mechanism, mechanism and shell that opens and shuts, non-contact detection mechanism includes:

the first magnetic conductive ring is a U-shaped magnetic ring, and a coil is wound on the first magnetic conductive ring;

the second magnetic conductive ring is a semicircular magnetic ring;

the control board is electrically connected with the coil;

the opening and closing mechanism comprises a moving block, the second magnetic conduction ring is fixed on the moving block, and a sliding rod is integrally formed on the right side of the lower end of the moving block;

the shell comprises a lower shell and an upper shell, the first magnetic conduction ring is fixed at the front parts of the lower shell and the upper shell, and the sliding rod is connected in the lower shell and the upper shell in a sliding mode.

As the utility model discloses further scheme again: the upside of movable block is fixed with the gland, it has the second mounting groove to integrate the shaping in movable block and the gland, second magnetic ring is fixed in the second mounting groove.

As a further aspect of the present invention: the upper end integrated into one piece of inferior valve has first mounting groove, the middle part integrated into one piece of inferior valve has the installation cavity, the right side integrated into one piece of inferior valve has the second spout, integrated into one piece has the spacing piece in the second spout, integrated into one piece has first spout on the right flank of inferior valve, first spout communicates in the right side of second spout, the structure and the inferior valve symmetry of epitheca, still be fixed with the touch-control screen on the top surface of epitheca.

As a further aspect of the present invention: first magnetic ring is fixed in first mounting groove, the control panel is fixed in the installation cavity, the middle part of installation cavity is fixed with the battery.

As a further aspect of the present invention: the slide bar is connected in the second sliding groove in a sliding mode, a push block is integrally formed on the right side of the slide bar, and the push block is connected in the first sliding groove in a sliding mode.

As a further aspect of the present invention: the middle part integrated into one piece of slide bar has the third spout, install the spring in the third spout, spring elastic connection is between the bottom and the stopper of third spout.

As a further aspect of the present invention: the top of inferior valve and epitheca, movable block and the bottom of gland all integrated into one piece have semi-circular recess, constitute the inspection hole jointly with above semi-circular recess.

As a further aspect of the present invention: the left side of installation cavity is fixed with the switch, the downside of installation cavity is fixed with the hole of charging, touch-control screen, switch, the equal electric connection in control panel of hole, battery charge.

The utility model has the advantages that:

1. the utility model discloses a current magnitude that the setting can detect the earth connection circulation of overhead tower determines whether overhead power line is to built on stilts electric leakage, can realize online non-contact measurement, and then can judge whether there is electric leakage phenomenon.

2. The utility model discloses a mechanism that opens and shuts that the setting can drive the magnetic ring body and open and shut for the magnetic ring body can conveniently detain the earth connection outside of establishing at the overhead tower, and then can be convenient for detect.

3. The utility model discloses a whether have the electric current in the detection earth connection and judge whether there is the electric leakage phenomenon, need not to cut off overhead power line's electric power transmission when detecting, can carry out electrified detection, avoid having a power failure the inconvenience of bringing.

Drawings

Fig. 1 is a schematic view of the overall structure of an electric leakage detection device for electric power construction according to the present invention;

fig. 2 is an exploded view of the leakage detecting device for power construction according to the present invention;

fig. 3 is a schematic structural view of a lower casing of the electric leakage detecting device for electric power construction provided by the present invention;

fig. 4 is the utility model provides a moving block schematic structure of electric leakage detection device for electric power construction.

In the figure: 1-lower shell, 2-push block, 3-first chute, 4-upper shell, 5-moving block, 6-gland, 7-detection hole, 8-touch screen, 9-first magnetic conductive ring, 10-coil, 11-switch, 12-charging hole, 13-control panel, 14-battery, 15-slide bar, 16-second magnetic conductive ring, 17-limit block, 18-second chute, 19-first mounting groove, 20-mounting cavity, 21-third chute, 22-spring, 23-second mounting groove.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, 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 drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the figures, which are based on the orientations and positional relationships shown in the figures, and are used for convenience in describing the patent and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

An electric leakage detection device for electric power construction is shown in figures 1-4 and comprises a non-contact detection mechanism, an opening and closing mechanism and a shell;

in order to facilitate non-contact electric leakage detection of the overhead tower; the non-contact detection mechanism includes: a first magnetic conductive ring 9, a second magnetic conductive ring 16 and a control plate 13; the first magnetic conductive ring 9 is a U-shaped magnetic ring, and a coil 10 is wound on the first magnetic conductive ring 9; the second magnetic conductive ring 16 is a semicircular magnetic ring; the cross sections of the openings of the first magnetic conductive ring 9 and the second magnetic conductive ring 16 are the same, so that the first magnetic conductive ring 9 and the second magnetic conductive ring 16 can be overlapped to form a closed magnetic conductive ring body through the openings;

the control board 13 is electrically connected to the coil 10; the control board 13 is provided with a relevant circuit capable of detecting the induced voltage value generated at two ends of the coil 10;

through arranging the first magnetic conductive ring 9, the second magnetic conductive ring 16, the coil 10 wound on the first magnetic conductive ring 9 and the control board 13, the first magnetic conductive ring 9 and the second magnetic conductive ring 16 can be buckled outside the ground wire of the overhead tower during detection, when electric leakage occurs, leakage current can flow in the ground wire, an induction magnetic field can exist around the ground wire according to the magnetic effect of current, the buckled first magnetic conductive ring 9 and the second magnetic conductive ring 16 can guide the magnetic field to pass through the inside of the coil 10, and further, according to the Faraday's law of electromagnetic induction, induction voltage can be generated at two ends of the coil 10, and the magnitude of the leakage current can be calculated by detecting the magnitude of the induction constant voltage; therefore, whether the overhead power line leaks electricity through the overhead tower or not can be judged under the condition of non-contact with the overhead power line.

In order to control the opening and closing of the first magnetic conduction ring 9 and the second magnetic conduction ring 16 conveniently, the first magnetic conduction ring and the second magnetic conduction ring are buckled outside the grounding wire of the overhead tower conveniently; the opening and closing mechanism comprises a moving block 5, a gland 6 is fixed on the upper side of the moving block 5, a second mounting groove 23 is integrally formed in the moving block 5 and the gland 6, and the second magnetic conductive ring 16 is fixed in the second mounting groove 23;

a first mounting groove 19 is integrally formed at the upper end of the lower shell 1, and the first magnetic conductive ring 9 is fixed in the first mounting groove 19;

the shell comprises a lower shell 1 and an upper shell 4, a mounting cavity 20 is integrally formed in the middle of the lower shell 1, a second sliding groove 18 is integrally formed in the right side of the lower shell 1, a limiting block 17 is integrally formed in the second sliding groove 18, a first sliding groove 3 is integrally formed in the right side of the lower shell 1, the first sliding groove 3 is communicated with the right side of the second sliding groove 18, the upper shell 4 is symmetrical to the lower shell 1 in structure, and a touch screen 8 is further fixed on the top surface of the upper shell 4;

a sliding rod 15 is integrally formed on the right side of the lower end of the moving block 5; the sliding rod 15 is connected in the second sliding groove 18 in a sliding manner, a pushing block 2 is integrally formed on the right side of the sliding rod 15, and the pushing block 2 is connected in the first sliding groove 3 in a sliding manner; the middle part integrated into one piece of slide bar 15 has third spout 21, install spring 22 in the third spout 21, spring 22 elastic connection is between the bottom of third spout 21 and stopper 17.

Through setting up slide bar 15 and spring 22 of sliding connection in inferior valve 1 and epitheca 4 for can drive slide bar 15 upwards to slide when upwards promoting ejector pad 2, and then make the second magnetic ring 16 that is fixed in movable block 5 upwards remove and part with first magnetic ring 9, can arrange the earth connection of overhead tower in between first magnetic ring 9 and second magnetic ring 16 through the breach this moment, when loosening ejector pad 2, slide bar 15 can be under the spring action of spring 22's downward slip, and then make first magnetic ring 9 and second magnetic ring 16 lock, the follow-up detection of being convenient for.

The top of inferior valve 1 and epitheca 4, the bottom of movable block 5 and gland 6 all integrated into one piece have semicircular groove, and above semicircular groove constitutes inspection hole 7 jointly.

The control board 13 is fixed in the installation cavity 20, the battery 14 is fixed in the middle of the installation cavity 20, the switch 11 is fixed on the left side of the installation cavity 20, the charging hole 12 is fixed on the lower side of the installation cavity 20, and the switch 11 and the charging hole 12 are both fixed on the lower shell 1 and the upper shell 4; the touch screen 8, the switch 11, the charging hole 12 and the battery 14 are all electrically connected to the control board 13.

The working principle is as follows: this embodiment is when using, outwards promote ejector pad 2 earlier and make movable block 5 outwards stretch out, detain the device on the earth connection of overhead tower through the space between movable block 5 and inferior valve 1 and epitheca 4 again, unclamping ejector pad 2 and making movable block 5 reset, and then make first magnetic ring 9 and second magnetic ring 16 form closed ring body, reopen switch 11, the device can be with the voltage automatic conversion that coil 10 both ends produced this moment leak current value display on touch-control screen 8, can also carry out more accurate measurement through touch-control screen 8 adjusting device's detection range.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a leakage detection device for electric power construction, includes non-contact detection mechanism, mechanism and shell that opens and shuts, its characterized in that, non-contact detection mechanism includes:

the magnetic circuit comprises a first magnetic conductive ring (9), wherein the first magnetic conductive ring (9) is a U-shaped magnetic ring, and a coil (10) is wound on the first magnetic conductive ring (9);

the second magnetic conductive ring (16), the said second magnetic conductive ring (16) is a semicircular magnetic ring;

a control board (13), wherein the control board (13) is electrically connected to the coil (10);

the opening and closing mechanism comprises a moving block (5), the second magnetic conductive ring (16) is fixed on the moving block (5), and a sliding rod (15) is integrally formed on the right side of the lower end of the moving block (5);

the shell includes inferior valve (1) and epitheca (4), first magnetic ring (9) are fixed in the front portion of inferior valve (1) and epitheca (4), slide bar (15) sliding connection is in inferior valve (1) and epitheca (4).

2. The electric leakage detection device for electric power construction as claimed in claim 1, wherein a gland (6) is fixed on the upper side of the movable block (5), a second mounting groove (23) is integrally formed in the movable block (5) and the gland (6), and the second magnetic conductive ring (16) is fixed in the second mounting groove (23).

3. The electric leakage detection device for electric power construction according to claim 2, wherein a first mounting groove (19) is integrally formed at the upper end of the lower casing (1), a mounting cavity (20) is integrally formed at the middle part of the lower casing (1), a second sliding groove (18) is integrally formed at the right side of the lower casing (1), a limiting block (17) is integrally formed in the second sliding groove (18), a first sliding groove (3) is integrally formed on the right side surface of the lower casing (1), the first sliding groove (3) is communicated with the right side of the second sliding groove (18), the structure of the upper casing (4) is symmetrical to the lower casing (1), and a touch screen (8) is further fixed on the top surface of the upper casing (4).

4. An electric leakage detection device for electric power construction according to claim 3, wherein the first magnetic conductive ring (9) is fixed in a first installation groove (19), the control plate (13) is fixed in an installation cavity (20), and a battery (14) is fixed in the middle of the installation cavity (20).

5. The electric leakage detection device for electric power construction as claimed in claim 4, wherein the slide rod (15) is slidably connected in the second sliding groove (18), the push block (2) is integrally formed at the right side of the slide rod (15), and the push block (2) is slidably connected in the first sliding groove (3).

6. The electric leakage detection device for electric power construction as claimed in claim 5, wherein a third sliding groove (21) is integrally formed in the middle of the sliding rod (15), a spring (22) is installed in the third sliding groove (21), and the spring (22) is elastically connected between the bottom end of the third sliding groove (21) and the limiting block (17).

7. The electric leakage detection device for electric power construction as claimed in claim 6, wherein the top ends of the lower casing (1) and the upper casing (4) and the bottom ends of the movable block (5) and the gland (6) are integrally formed with semicircular grooves, and the semicircular grooves jointly form the detection hole (7).

8. The electric leakage detection device for electric power construction as claimed in claim 7, wherein a switch (11) is fixed to the left side of the installation cavity (20), a charging hole (12) is fixed to the lower side of the installation cavity (20), and the touch screen (8), the switch (11), the charging hole (12) and the battery (14) are all electrically connected to the control board (13).