CN206022653U - A kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction - Google Patents
A kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction Download PDFInfo
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- CN206022653U CN206022653U CN201621078593.4U CN201621078593U CN206022653U CN 206022653 U CN206022653 U CN 206022653U CN 201621078593 U CN201621078593 U CN 201621078593U CN 206022653 U CN206022653 U CN 206022653U
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- sleeve
- metal sleeve
- copper core
- copper
- column
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- 238000000605 extraction Methods 0.000 title claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 138
- 229910052802 copper Inorganic materials 0.000 claims abstract description 80
- 239000010949 copper Substances 0.000 claims abstract description 80
- 229910052751 metal Inorganic materials 0.000 claims abstract description 66
- 239000002184 metal Substances 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000012544 monitoring process Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction, including ground connection lid, end shield ground connection copper post, insulated porcelain sleeve, copper sheathing, column copper core, copper sheathing bottom open up blind hole, and column copper core is connected by spring with blind hole top；Insulating sleeve is arranged with outside copper sheathing, column copper core, metal sleeve on the outside of insulating sleeve, is provided with；Boss is provided with column copper core, and metal sleeve inner bottom surface arranges the convex set of insulation, and metal sleeve lateral surface arranges insulating washer；First sealing ring is set between the ground connection lid and metal sleeve, the second sealing ring is set on the convex contact surface covered with metal sleeve of the insulation, the 3rd sealing ring is set on the insulating washer and the contact surface of metal sleeve.The utility model is realized guaranteeing insulation effect while improving the purpose of sealing property in order to solve the problems, such as that the easy poor sealing of end shield earthing or grounding means causes end shield to be made moist in prior art.
Description
Technical field
The utility model is related to end shield ground connection field, relates in particular to a kind of end shield of sleeve pipe Leakage Current signal extraction
Earthing or grounding means.
Background technology
At present, with the development of intelligent grid and electric network state intelligence examination and repair system, the on-line monitoring technique application of electrical network
More and more extensive.The on-line monitoring of sleeve pipe Leakage Current can reflect sleeve pipe Leakage Current in operation, dielectric loss and electric capacity in real time
Amount, finds casing imperfection in time, can be prevented effectively from the main transformer failure caused because of sleeve pipe failure.In operation, bottom shielding of bushing leads to
Cross end shield ground connection copper post and end shield lid be joined directly together.Existing, sleeve pipe Leakage Current how is extracted, while reach good again
Sealing effectiveness be difficult point in sleeve pipe Leakage Current on-line monitoring technique.If poor sealing is good, end shield is easily caused to make moist,
Reliable extraction Leakage Current signal is unable to if insulation effect is bad, not only causes on-line monitoring to judge by accident, in some instances it may even be possible to because connecing
Touch bad cause end shield discharge.
Utility model content
The purpose of this utility model is to provide a kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction, to solve
In prior art, the easy poor sealing of end shield earthing or grounding means causes the problem that end shield is made moist, and realizes guaranteeing insulation effect while carrying
The purpose of high sealing performance.
The utility model is achieved through the following technical solutions：
A kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction, connects including ground connection lid, through the end shield of ground connection lid
Ground copper post and the insulated porcelain sleeve around end shield ground connection copper post, end shield ground connection copper post lower end arrange copper sheathing, copper sheathing lower end connecting pole
Shape copper core, the copper sheathing bottom offer blind hole, and in column copper core insertion blind hole, column copper core is connected by spring with blind hole top
Connect；Pin-and-hole is additionally provided with the column copper core, and copper sheathing lower end arranges the cotter way matched with the pin-and-hole, sells by insertion
Pin connection column copper core and copper sheathing in hole, cotter way；Insulating sleeve is arranged with outside the copper sheathing, column copper core, described exhausted
Metal sleeve is provided with the outside of edge sleeve, the metal sleeve is threadedly coupled with ground connection lid；The column copper core is passed to metal
On the outside of sleeve；The part that the column copper core is located in blind hole is additionally provided with a circle boss, and metal sleeve inner bottom surface is by absolutely
The convex set of edge is coated to column copper core, and metal sleeve lateral surface is entered to the column copper core for passing metal sleeve by insulating washer
Row cladding；First sealing ring, the insulation convex contact surface covered with metal sleeve are set between the ground connection lid and metal sleeve
The second sealing ring of upper setting, arranges the 3rd sealing ring on the insulating washer and the contact surface of metal sleeve.
The problem that end shield is made moist, the utility model is caused to carry for the easy poor sealing of end shield earthing or grounding means in prior art
Go out a kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction.This device include existing ground connection lid, end shield ground connection copper post,
Insulated porcelain sleeve, end shield ground connection copper post lower end arrange copper sheathing, and copper sheathing lower end connects column copper core.The copper sheathing is used for keeping end shield to connect
It is electrically connected between ground copper post and column copper core, it is ensured that electric current proper flow.The copper sheathing is preferably tube structure, the blind hole position
Contact with copper sheathing in copper sheathing bottom, column copper core insertion blind hole.Spring is fixed on column copper core top, and the other end of spring is fixed
In blind hole inside top surface, i.e., the top of column copper core and copper sheathing are coupled together by spring.Also set up in the column copper core
There are pin-and-hole, copper sheathing lower end that the cotter way matched with the pin-and-hole is set, by inserting the pin in pin-and-hole, cotter way, by column copper
Core bottom is coupled together with copper sheathing, and enables column copper core to carry out relative movement with copper sheathing in the range of cotter way.Described
Insulating sleeve is arranged with outside copper sheathing, column copper core, is that copper sheathing, column copper core are arranged on inside insulating sleeve, by insulation
Sleeve is hedged off from the outer world, it is to avoid electric current dissipates overflow and loses.Conventional metal sleeve is arranged on the outside of insulating sleeve.The column copper core
The part being located in blind hole is additionally provided with a circle boss, and boss is that a circumferentially outside circle in column copper core is raised.This
During utility model use, the screw thread between metal sleeve and ground connection lid is tightened, metal sleeve is moved upwards, and extruding first is close
The sealing between metal sleeve and ground connection lid is realized in seal.Simultaneously drive the convex set of insulation to move upwards, the convex set that insulate move to
Boss is contacted, and applies power upwards to boss, that is, promote column copper core to move upwards, and spring stress compresses, and applies court to copper sheathing
To the power that end shield is grounded copper post, so that it is guaranteed that being in close contact between end shield ground connection copper post and copper sheathing, it is ensured that electrical connection properties are good.
Moved under the convex drive for being enclosed within metal sleeve of insulation, therefore insulate and be in close contact between convex set and metal sleeve, extruding the
Two sealing rings, realize the sealing between the convex set of insulation and metal sleeve.Set on the insulating washer and the contact surface of metal sleeve
Put the 3rd sealing ring, for from outside again to column copper core around seal, the 3rd sealing ring coordinated insulation packing ring reaches
Arrive moisture effect.In sum, the utility model guarantees the effect of insulation against ground by insulating sleeve, insulate convex set, insulating washer
Really, by portions such as the metal sleeve of the first sealing ring, the second sealing ring, the 3rd sealing ring and supporting threaded connection, springs
Part, realizes the purpose for improving sealing property.
Further, the boss arranges the 4th sealing ring with the convex inner room of insulation.Metal sleeve is being tightened with ground connection lid
Between screw thread when, metal sleeve is moved upwards, drives the convex set of insulation to move upwards, and the convex set that insulate is moved to and contact with boss, crowded
The 4th sealing ring is pressed, boss is realized and being insulated seal between convex set, further improve moisture seal performance of the present utility model.
Further, the metal sleeve is made for aluminum alloy materials.Aluminum alloy corrosion resistant intensity is high, for this reality
Be conducive to improving service life with new middle making metal sleeve.
Further, the insulation is convex covers the convex shape being made for insulating materials, arranges along its axis direction logical
Hole, the through hole are matched with column copper core, and column copper core is passed through from through hole.
Further, the column copper core is located at the end on the outside of metal sleeve and is arranged with nut, column copper core outer surface
It is provided with the external screw thread matched with the nut.Be by tightening nut, then can will be equal to insulating washer, the 3rd sealing ring
Metal sleeve surface is squeezed in, to reach more excellent moisture seal effect.
Further, the column copper core is electrically connected with copper sheathing also by annealed copper wire.Column copper core is guaranteed by annealed copper wire
Electrical connection effect between copper sheathing, the situation for being prevented from electrically connecting failure occur.
The utility model compared with prior art, has the following advantages and advantages：
A kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction of the utility model, by tightening metal sleeve and connecing
Screw thread between ground lid, metal sleeve are moved upwards, are extruded the first sealing ring and are realized the sealing between metal sleeve and ground connection lid；
The convex set of insulation is driven to move upwards simultaneously, the convex set that insulate is moved to and contacted with boss, applies power upwards to boss, that is, promote post
Shape copper core is moved upwards, and spring stress compresses, and applies the power for being grounded copper post towards end shield to copper sheathing, so that it is guaranteed that end shield grounding copper
It is in close contact between post and copper sheathing, it is ensured that electrical connection properties are good.Moved under the convex drive for being enclosed within metal sleeve of insulation, because
It is in close contact between the convex set of this insulation and metal sleeve, extrudes the second sealing ring, realizes between the convex set of insulation and metal sleeve
Sealing.3rd sealing ring is set on the contact surface of the insulating washer and metal sleeve, for from outside again to column copper core
Around sealed, the 3rd sealing ring coordinated insulation packing ring reaches moisture effect.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part, does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Structural representations of the Fig. 1 for the utility model specific embodiment；
Fig. 2 is the structural representation of copper sheathing in the utility model specific embodiment；
Fig. 3 is the structural representation of column copper core in the utility model specific embodiment；
Structural representations of the Fig. 4 for the convex set that insulate in the utility model specific embodiment.
Mark and corresponding component names in accompanying drawing：
1- ground connection lids, 2- end shields ground connection copper post, 3- insulated porcelain sleeves, 4- copper sheathings, 41- blind holes, 42- cotter ways, 5- column copper cores,
51- pin-and-holes, 6- springs, 7- insulating sleeves, 8- metal sleeves, 9- boss, the convex set of 10- insulation, 101- through holes, 11- insulating washers,
The first sealing rings of 12-, the second sealing rings of 13-, the 3rd sealing rings of 14-, the 4th sealing rings of 15-, 16- nuts.
Specific embodiment
For making the purpose of this utility model, technical scheme and advantage become more apparent, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, is not intended as to restriction of the present utility model.
Embodiment 1：
A kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction as shown in Figures 1 to 4, including being grounded lid 1, wearing
The end shield ground connection copper post 2 for crossing ground connection lid 1 and the insulated porcelain sleeve 3 for being grounded copper post 2 around end shield, 2 lower end of end shield ground connection copper post sets
Copper sheathing 4 is put, 4 lower end of copper sheathing connects column copper core 5, and 4 bottom of the copper sheathing offers blind hole 41, and column copper core 5 inserts blind hole 41
Interior, column copper core 5 is connected by spring 6 with 41 top of blind hole；Pin-and-hole 51,4 lower end of copper sheathing is additionally provided with the column copper core 5
The cotter way 42 matched with the pin-and-hole 51 is set, column copper core 5 and copper are connected by the pin inserted in pin-and-hole 51, cotter way 42
Set 4；Insulating sleeve 7 is arranged with outside the copper sheathing 4, column copper core 5, is provided with metal sleeve 8 on the outside of the insulating sleeve 7,
The metal sleeve 8 is threadedly coupled with ground connection lid 1；The column copper core 5 is passed to metal sleeve 8；The column copper core 5
The part being located in blind hole 41 is additionally provided with a circle boss 9, and 8 inner bottom surface of metal sleeve is by the 10 pairs of column copper cores of convex set that insulate
5 are coated, and 8 lateral surface of metal sleeve is coated by the column copper core 5 that insulating washer 11 pairs passes metal sleeve 8；Institute
State and between ground connection lid 1 and metal sleeve 8 first sealing ring 12 is set, on the convex set 10 of the insulation and the contact surface of metal sleeve 8
Second sealing ring 13 is set, the 3rd sealing ring 14 is set on the insulating washer 11 and the contact surface of metal sleeve 8.The boss
Between 9 and the convex set 10 of insulation, the 4th sealing ring 15 is set.The metal sleeve 8 is made for aluminum alloy materials.The insulation is convex
The convex shape that set 10 is made for insulating materials, arranges through hole 101, the through hole 101 and column copper along its axis direction
Core 5 matches, and column copper core 5 is passed through from through hole 101.The column copper core 5 is located at the end on the outside of metal sleeve 8.Described
Column copper core 5 is electrically connected with copper sheathing 4 also by annealed copper wire.
During the utility model use, the screw thread between metal sleeve 8 and ground connection lid 1 is tightened, metal sleeve 8 is transported upwards
Dynamic, extrude the first sealing ring 12 and realize the sealing between metal sleeve 8 and ground connection lid 1.The convex set 10 of insulation is driven to transport upwards simultaneously
Dynamic, the convex set 10 that insulate is moved to and is contacted with boss 9, applies power upwards to boss 9, that is, promote column copper core 5 to move upwards, bullet
6 forced compression of spring, applies the power for being grounded copper post 2 towards end shield to copper sheathing 4, so that it is guaranteed that between end shield ground connection copper post 2 and copper sheathing 4
It is in close contact, it is ensured that electrical connection properties are good.The convex set 10 of insulation is moved to and is contacted with boss 9, can also extrude the 4th sealing ring 15,
Realize boss 9 and insulate sealing between convex set 10, further improve moisture seal performance of the present utility model.The convex set 10 of insulation exists
Moved under the drive of metal sleeve 8, therefore insulate and be in close contact between convex set 10 and metal sleeve 8, extruding second is sealed
Circle 13, realizes the sealing between the convex set 10 of insulation and metal sleeve 8.On the contact surface of the insulating washer 11 and metal sleeve 8
3rd sealing ring 14 is set, for from outside again to column copper core 5 around seal, 14 coordinated insulation of the 3rd sealing ring
Packing ring 11 reaches moisture effect.
Above-described specific embodiment, is entered to the purpose of this utility model, technical scheme and beneficial effect
One step describe in detail, be should be understood that the foregoing is only specific embodiment of the present utility model, be not used to limit
Fixed protection domain of the present utility model, all any modifications that within spirit of the present utility model and principle, is made, equivalent are replaced
Change, improve, should be included within protection domain of the present utility model.
Claims (6)
1. a kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction, covers including ground connection（1）, through ground connection lid（1）End
Screen ground connection copper post（2）, and around end shield be grounded copper post（2）Insulated porcelain sleeve（3）, end shield ground connection copper post（2）Lower end arranges copper
Set（4）, copper sheathing（4）Lower end connects column copper core（5）, it is characterised in that：The copper sheathing（4）Bottom offers blind hole（41）, post
Shape copper core（5）Insertion blind hole（41）Interior, column copper core（5）With blind hole（41）Top passes through spring（6）Connection；The column copper core
（5）On be additionally provided with pin-and-hole（51）, copper sheathing（4）Lower end is arranged and the pin-and-hole（51）The cotter way for matching（42）, by insertion
Pin-and-hole（51）, cotter way（42）Interior pin connection column copper core（5）With copper sheathing（4）；The copper sheathing（4）, column copper core（5）Outside
It is arranged with insulating sleeve（7）, the insulating sleeve（7）Outside is provided with metal sleeve（8）, the metal sleeve（8）With ground connection
Lid（1）Threaded connection；The column copper core（5）Pass to metal sleeve（8）Outside；The column copper core（5）It is located at blind hole
（41）Interior part is additionally provided with a circle boss（9）, metal sleeve（8）Inner bottom surface is by the convex set that insulate（10）To column copper core
（5）Coated, metal sleeve（8）Lateral surface passes through insulating washer（11）To passing metal sleeve（8）Column copper core（5）Enter
Row cladding；The ground connection lid（1）With metal sleeve（8）Between the first sealing ring is set（12）, the convex set that insulate（10）With gold
Category sleeve（8）Contact surface on the second sealing ring is set（13）, the insulating washer（11）With metal sleeve（8）Contact surface on
3rd sealing ring is set（14）.
2. the end shield earthing or grounding means of a kind of sleeve pipe Leakage Current signal extraction according to claim 1, it is characterised in that：Institute
State boss（9）With the convex set that insulate（10）Between arrange the 4th sealing ring（15）.
3. the end shield earthing or grounding means of a kind of sleeve pipe Leakage Current signal extraction according to claim 1, it is characterised in that：Institute
State metal sleeve（8）It is made for aluminum alloy materials.
4. the end shield earthing or grounding means of a kind of sleeve pipe Leakage Current signal extraction according to claim 1, it is characterised in that：Institute
State the convex set of insulation（10）For the convex shape that insulating materials is made, through hole is set along its axis direction（101）, the through hole
（101）With column copper core（5）Match, column copper core（5）From through hole（101）In pass through.
5. the end shield earthing or grounding means of a kind of sleeve pipe Leakage Current signal extraction according to claim 1, it is characterised in that：Institute
State column copper core（5）It is located at metal sleeve（8）The end in outside is arranged with nut（16）, column copper core（5）Outer surface is provided with
With the nut（16）The external screw thread for matching.
6. the end shield earthing or grounding means of a kind of sleeve pipe Leakage Current signal extraction according to claim 1, it is characterised in that：Institute
State column copper core（5）Also by annealed copper wire and copper sheathing（4）It is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621078593.4U CN206022653U (en) | 2016-09-26 | 2016-09-26 | A kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621078593.4U CN206022653U (en) | 2016-09-26 | 2016-09-26 | A kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206022653U true CN206022653U (en) | 2017-03-15 |
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ID=58260597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621078593.4U Active CN206022653U (en) | 2016-09-26 | 2016-09-26 | A kind of end shield earthing or grounding means of sleeve pipe Leakage Current signal extraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206022653U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560436A (en) * | 2017-09-28 | 2018-01-09 | 山河智能特种装备有限公司 | One kind smashes stove car insulated working device |
| CN107677916A (en) * | 2017-09-04 | 2018-02-09 | 中国电力科学研究院 | End shield of high-voltage bushing ground shield and end shield of high-voltage bushing |
-
2016
- 2016-09-26 CN CN201621078593.4U patent/CN206022653U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677916A (en) * | 2017-09-04 | 2018-02-09 | 中国电力科学研究院 | End shield of high-voltage bushing ground shield and end shield of high-voltage bushing |
| CN107677916B (en) * | 2017-09-04 | 2020-07-14 | 中国电力科学研究院 | High-voltage bushing tap grounding protective cover and high-voltage bushing tap |
| CN107560436A (en) * | 2017-09-28 | 2018-01-09 | 山河智能特种装备有限公司 | One kind smashes stove car insulated working device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |