CN105629036A - Electric leakage detector with replaceable detection clamp - Google Patents

Abstract

The invention discloses an electric leakage detector with a replaceable detection clamp, and the detector comprises a detection clamp with a magnetic ring, and a body which is used for fixing the detection clamp. The left and right half parts of the detection clamp are respectively in rotating connection with two rotating shafts on the body. The rotating shafts are in detachable connection with the body. The detector enables a detection ring to be changed into a replaceable part, and achieves the low cost and high efficiency of the production and maintenance of detectors with different aperture diameters.

Description

A kind of leakage detector of replaceable detection folder

Technical field

The present invention relates to current sensing means, particularly relate to the leakage detector of a kind of replaceable detection folder with magnet ring.

Background technology

In power grid operation management works, it is necessary to checking the drain conditions of power circuit, leakage detector of the prior art is all open type.

Prior art discloses the current sensing means on civilian transmission line of electricity and detection method thereof, it disclose in detail the structure of leakage detector of open type, the leakage detector of this open type can be clipped on cable to leak hunting electric current, but owing to field condition is varied, generally it is likely to the leakage detector needing to use different bore. The leakage detector of each bore is required for carrying out independent die sinking, causes that production cost is significantly high.

Summary of the invention

The present invention is to solve above-mentioned problem of the prior art, the leakage detector of a kind of replaceable detection folder is proposed, including the detection folder with magnet ring with for fixing the body of described detection folder, a left side half folder and right half folder of detection folder rotate axle with two on body respectively and are rotationally connected, and described rotation axle and body removably connect.

In further detail, detection folder includes two clamping limbs of composition Guan Bi magnet ring, respectively two clamping limbs and two being rotated two moving blocks that axle connects, the opposite flank of two moving blocks is provided with the engaging tooth of linkage mutually, is connected the cursor for opening described Guan Bi magnet ring with moving block. Clamping limb includes semicircular shell, the left semi-ring of described magnet ring and right semi-ring it is respectively equipped with in the housing of two clamping limbs, for fixing the plastic inner shell of left and right semi-ring, it is wrapped in the coil on plastic inner shell outer wall, is wrapped in the metal screen layer outside coil and plastic inner shell.

Described magnet ring is made up of soft magnetic bodies. The left semi-ring of magnet ring and right semi-ring are laminated by multi-disc semicircle magnetic sheet respectively, the head and the tail two ends respectively arc end of described magnetic sheet and breach end, arrange on the contrary in the head and the tail two ends of two groups of neighbouring magnetic sheets, often being provided with at least one block of magnetic sheet in group magnetic sheet, the butt end of every two blocks of magnetic sheets that left and right semi-ring docks mutually carries out seamless spliced respectively through arc end and breach end.

Preferably, the inner periphery side of plastic inner shell is interval with several positive stop strips along its circumferencial direction, and the position of the inner circumferential side correspondence positive stop strip of described magnetic sheet is provided with several breach.

Body is provided with two cylindrical positioning convex column, described positioning convex column is provided with and rotates the thread groove that male thread is connected, a described left side half folder and right half folder are provided with and are available for the circular locating slot that positioning convex column is inserted, described locating slot center is provided with the through hole being available for rotating axle traverse, and described through hole, locating slot, positioning convex column concentric are arranged.

Body is provided with fixing post, and described fixing post is cased with torsion spring, and two elastic arms of described torsion spring prop up cursor makes magnet ring be in closure state.

The present invention devises the earth detector of a kind of detachable detection ring, it is interchangeable that leakage detector is designed to magnet ring, it is modular, main part is consistent, Curve guide impeller in structure, make to change different size magnet ring and constitute different model leakage detector, solve low-cost high-efficiency design leakage detector problem, and be the maintenance reduction cost in later stage.

Accompanying drawing explanation

Fig. 1 is the schematic appearance of the present invention.

Fig. 2 is the structural representation of detection folder.

Fig. 3 is the B-B sectional view of Fig. 1.

Fig. 4 is the structural representation of magnetic sheet.

Fig. 5 is the circuit block diagram of the present invention.

In figure, 1-detects folder, 2-body, 11-the first arc clamping limb, 12-the second arc clamping limb, 13-spring, 14-the first moving block, 15-the second moving block, 16-rotates axle, 17-cursor, 21-detection folder cabinet, 22-metal screen layer, 23-detection folder plastic inner shell, 24-magnet ring, 241-magnetic sheet, 242-arc end, 243-breach end.

Detailed description of the invention

Below in conjunction with drawings and Examples, describe structure and the principle of the present invention in detail.

Fig. 1 is the leakage detector that one embodiment of the invention provides, including the detection folder 1 with magnet ring and the body 2 for fixed test folder. The feature of this detection folder is a left side half folder of detection folder 1 and right half folder rotates axles 16 with two be fixed on body 2 respectively and is rotationally connected, and these two rotate axles 16 and removably connect with body 2. So detection folder 1 and body 2 can be separated, if needing the detection folder of different bore, it is possible to individually die sinking, it is not necessary to be whole leakage detector die sinking again, be greatly saved production cost. Magnet ring diameter provided by the invention is 35mm or 85mm, and those skilled in the art can also produce the magnet ring of other different bores as required.

As in figure 2 it is shown, detection folder 1 includes clamping limb, moving block and cursor. Two clamping limb respectively the first arc clamping limb 11 and the second arc clamping limbs 12, they semicirculars in shape, two ends are docking together respectively and form Guan Bi magnet ring, and the first butt end of first, second arc clamping limb is connected by spring 13, operation cursor, moving block is made to rotate around rotating axle, it is possible to make the second butt end of first, second arc clamping limb open. Two moving block respectively the first moving block 14 and the second moving blocks 15, two clamping limbs and two are rotated what axle connected by them, the opposite flank of two moving blocks is provided with the engaging tooth of linkage mutually, rotates one of them moving block, i.e. another moving block of linkage. Further, the first moving block 14 and the first arc clamping limb 11 are one-body molded, and second moving block the 15, second arc clamping limb 12 and cursor 17 are one-body molded.

As shown in Figure 3, the concrete structure of first/second arc clamping limb includes semicircle detection folder cabinet 21, it is respectively equipped with the left semi-ring of magnet ring and right semi-ring in two detection folder cabinets 21, left/right semi-ring outer package is in detection folder plastic inner shell 23, detection folder plastic inner shell outer wall is wrapped coil, it is provided with metal screen layer 22 between coil and cabinet, is used for the magnetic field shielding between magnet ring and the external world, it is to avoid with extraneous electromagnetic interference.

As shown in Figure 4, the magnet ring 24 of the present invention adopts soft magnetic bodies to make, its concrete structure is to be laminated by multi-disc arc magnetic sheet, the head and the tail two ends of these magnetic sheets 241 respectively arc end 242 and breach end 243, the butt end of every two blocks of magnetic sheets that left and right semi-ring docks mutually is spliced respectively through arc end and breach end. Owing to the two ends of plastic inner shell 23 are all openings, in order to prevent magnetic sheet from along the circumferential direction sliding, the inner periphery side of plastic inner shell 23 is interval with several positive stop strip (not shown)s along its circumferencial direction, the position of the inner circumferential side correspondence positive stop strip of magnetic sheet 241 arranges several breach 243, after assembling, breach 243 blocks positive stop strip, thus fixing magnetic sheet 241.

Because multi-pass operation detection folder in prior art, it is crooked that the external force of generation is easily caused rotation axle, is no longer normal to body surface, and this will make first, second butt end cannot Dock With Precision Position again, it is impossible to forms an of completely closed magnet ring. Therefore, in order to make the left and right semi-ring of clamping limb middle magnetic ring can again dock accurately after opening operation, reduce the error in operation, body is provided with two cylindrical positioning convex column, positioning convex column is provided with and rotates, with two, the thread groove that axle 16 is threadeded, the moving block of left half folder and right half folder is provided with and is available for the circular locating slot that positioning convex column is inserted, and locating slot center is provided with the through hole being available for rotating axle traverse, and through hole, locating slot, positioning convex column concentric are arranged. So under external force, operate cursor, open the second butt end of two clamping limbs, be possible not only to carry out back rotation for axle center rotating axle, and circular locating slot also can overlap positioning convex column rotates, it is to avoid it is crooked that external force makes rotation axle produce. Will not producing crooked owing to rotating axle, unclamp cursor and make, clamping limb can close up again according to the track opened, and is spliced into complete magnet ring, solves the problems of the prior art well.

Additionally, when detecting folder and being clipped on wire to be measured, some interference can be subject to, for instance wind blows detector, causes under the interference of the active forces such as gravity, and magnet ring cannot be of completely closed. Therefore, the body of the present invention is provided with fixing post, and fixing post is cased with torsion spring, and two elastic arms of torsion spring prop up cursor makes magnet ring be in closure state.

In the present embodiment, in body 2, it is provided with electronic signature capture analysis module 5, also with LED light, provides the battery 4 of power supply for detector. During detection, making electrified wire to be measured through magnet ring, can produce magnetic field in metal screen layer, this magnetic field is walked along magnet ring, and the coil being centered around on cabinet can be made to produce electric current, and electronic signature capture analysis module 5 can receive this signal and carry out analysis for current leakage. The electronic signature capture analysis module 5 real-time current according to the signal analysis currently detected cable of detection ring, via whether each tested measuring point of concentrator Macro or mass analysis exists leaky, then testing result is displayed at concentrator side, and produce detection archives.

Yet further, the present invention is also provided with electronic lock, presss from both sides for lock-in detection. Electronic lock includes locking plate 7, remote-control motor 8 and controls the remote-control key of remote-control motor. Locking plate 7 is arranged on the tip inside of cursor, clamping limb is opened for limiting cursor, remote-control motor 8 is connected with locking plate 7, locking plate can be driven to be perpendicular to the rotation with in surface of body surface, remote-control key then can remotely control remote-control motor, making electronic lock unblank or locking, LED then can be pointed out and unblank or blocking.

As shown in Figure 5, the present invention is also provided with wireless communication module 6, communication can be carried out with handheld terminal PDA, the result that magnetic induction ring in detection folder 1 detects is acquired analyzing by electronic signature capture analysis module 5, and then the result after analyzing can be transferred to corresponding handheld terminal PDA by wireless communication module 6 and antenna 3. The present invention can also download inter-related task information from handheld terminal PDA, such as device attribute, owner, Location, the circuit of administration, contact method, management unit etc., and once draw test result, can also combine with these information, become complete information aggregate, be then forwarded to handheld terminal PDA. The present invention is by the communication with handheld terminal PDA, it is possible to leakage point of electricity is named, and display ownership incidence relation is that operation maintenance personnel clearly overhauls direction and maintenance task.

It should be appreciated that the above-mentioned description for specific embodiment is comparatively detailed, therefore can not thinking the restriction to scope of patent protection of the present invention, the scope of patent protection of the present invention should be as the criterion with claims.

Claims (9)

1. the leakage detector of a replaceable detection folder, including the detection folder with magnet ring with for fixing the body of described detection folder, it is characterized in that, a left side half folder and right half folder of detection folder rotate axle with two on body respectively and are rotationally connected, and described rotation axle and body removably connect.

2. leakage detector as claimed in claim 1, it is characterized in that, described detection folder includes two clamping limbs of composition Guan Bi magnet ring, respectively two clamping limbs and two are rotated two moving blocks that axle connects, the opposite flank of two moving blocks is provided with the engaging tooth of linkage mutually, is connected the cursor for opening described Guan Bi magnet ring with moving block.

3. leakage detector as claimed in claim 1, it is characterized in that, described clamping limb includes semicircular shell, the left semi-ring of magnet ring and right semi-ring it is respectively equipped with in the semicircular shell of two clamping limbs, for fixing the plastic inner shell of left and right semi-ring, it is wrapped in the coil on plastic inner shell outer wall, is wrapped in the metal screen layer outside coil and plastic inner shell.

4. leakage detector as claimed in claim 3, it is characterized in that, the left semi-ring of described magnet ring and right semi-ring are laminated by multi-disc semicircle magnetic sheet respectively, the head and the tail two ends respectively arc end of described magnetic sheet and breach end, arrange on the contrary in the head and the tail two ends of two groups of neighbouring magnetic sheets, often being provided with at least one block of magnetic sheet in group magnetic sheet, the butt end of every two blocks of magnetic sheets that left and right semi-ring docks mutually carries out seamless spliced respectively through arc end and breach end.

5. leakage detector as claimed in claim 3, it is characterised in that the inner periphery side of described plastic inner shell is interval with several positive stop strips along its circumferencial direction, and the position of the inner circumferential side correspondence positive stop strip of described magnetic sheet is provided with several breach.

6. the leakage detector as described in claim 1 to 5 any one, it is characterized in that, described body is provided with two cylindrical positioning convex column, described positioning convex column is provided with and rotates the thread groove that male thread is connected, a described left side half folder and right half folder are provided with and are available for the circular locating slot that positioning convex column is inserted, described locating slot center is provided with the through hole being available for rotating axle traverse, and described through hole, locating slot, positioning convex column concentric are arranged.

7. leakage detector as claimed in claim 2, it is characterised in that described body is provided with fixing post, and described fixing post is cased with torsion spring, and two elastic arms of described torsion spring prop up cursor makes magnet ring be in closure state.

8. leakage detector as claimed in claim 6, it is characterised in that the diameter of described magnet ring is 35mm or 85mm.

9. leakage detector as claimed in claim 1, it is characterised in that described magnet ring is made up of soft magnetic bodies.