CN206023208U - A kind of overvoltage protection device - Google Patents
A kind of overvoltage protection device Download PDFInfo
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- CN206023208U CN206023208U CN201621025640.9U CN201621025640U CN206023208U CN 206023208 U CN206023208 U CN 206023208U CN 201621025640 U CN201621025640 U CN 201621025640U CN 206023208 U CN206023208 U CN 206023208U
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- protection device
- insulator
- overvoltage protection
- spark gap
- connection end
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Abstract
The utility model discloses a kind of overvoltage protection device; aim to provide a kind of radially fixed firm overvoltage protection device of draining ring; solve draining ring to rotate when external wind is larger; change the gap between the two ends of draining ring and insulator; affect the lightning-arrest performance of overvoltage protection device; its drip irrigation device includes draining ring and spark gap; fixture is provided with the draining ring, is provided with the fixing hole for fixing with spark gap and grafting is fixed on the locating convex block in the location hole at the top of spark gap on the fixture.
Description
Technical field
This utility model is related to electrical network lightning protection device, more particularly to a kind of overvoltage protection device.
Background technology
Thunder and lightning makes a kind of weather phenomenon for often occurring summer, and thunder calamity is to natural resourcess and environment structure for the survival of mankind
Into huge threat, the safety of serious crisis power generation.
Overvoltage protection device is a kind of device of power system high pressure equipment overvoltage protection, and the operation principle of the device is such as
Under：The drainage system of overvoltage protection device is in parallel with insulator, when thunderbolt shaft tower or lightning conducter, the high potential that lightning current causes
Make the series gap of line protector work, reduce the potential difference between tower arm and wire, it is ensured that insulator no longer flashover, from
And avoid line tripping from having a power failure.After series gap action, the residual voltage of overvoltage protection device body is not limited only to be far below
The interior flashover voltage of insulator, and under the system frequency voltage of overvoltage, oneself can extinguish power frequency continued flow, it is ensured that normal confession
Electricity.
The Chinese patent of Publication No. 202978256U discloses a kind of overvoltage protection device, and it is defeated that it includes that upper end is fixed on
Insulator on electric wire, the lower end of the insulator are fixedly linked by the lower end of support and spark gap, the upper end of spark gap with
One end of draining ring is fixedly linked, and the other end of draining ring is set in the top of insulator in open annular.This overvoltage is protected
Although shield device can pass through to install draining ring between spark gap and insulator so that be formed between draining ring and insulated power line
Series gap and current limiting element can synergism, can effectively block power frequency continued flow in moment, it is to avoid insulated power line occurs thunder
Hit line-outage contingency and reduce because the line switching that thunderbolt is caused trips, but draining ring may be rotated when external wind is larger,
Change the gap between the two ends of draining ring and insulator, affect the lightning-arrest performance of overvoltage protection device.
Utility model content
In view of the shortcomings of the prior art, to be to provide a kind of draining ring radially fixed firm for the purpose of this utility model
Overvoltage protection device.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of overvoltage protection
Device, including draining ring and spark gap, is provided with fixture, is provided with upper with spark gap on the fixture on the draining ring
The corresponding fixing hole of spliced eye and grafting are fixed on the locating convex block in the location hole at the top of spark gap.
By above-mentioned setting, bolt is threadedly secured on the spliced eye of spark gap through the fixing hole on fixture, right
The axial direction of draining ring is fixed；Locating convex block on fixture is plugged at the top of spark gap in fixing hole, is played to drain
The radially fixed effect of ring；Draining ring is made in the environment for being chronically at outside by the Dual positioning radial and axial to draining ring
When middle, can still keep stable, will not cause draining ring that radial displacement occurs affects because of outside wind is excessive or rain is excessive
The lightning-arrest performance of voltage protector.
It is further arranged to：The draining ring includes two drain semi-rings being oppositely arranged, two drain semi-rings one
Crotch section that body sets gradually, ring segment, linkage section, the fixture are fixed on linkage section.
By above-mentioned setting, it is not necessary to disposably process draining ring, draining ring is arranged to two drain semi-rings
Convenient processing；After two drain semi-rings are processed, the linkage section of two drain semi-rings is welded and fixed in horizontal plane, can just be made
Two drain semi-rings make ring segment and the gap of insulator make identical on horizontal plane.
It is further arranged to：Also include insulator, the ring segment is socketed in the outer end of insulator, the ring segment interior
Wall is provided with uniform gap with the outer end of insulator.
By above-mentioned setting, when spark gap is subject to effects of lightning, draining ring that high potential is transferred to insulation by ring segment
Son, the gap uniformity between ring segment and insulator make each point balance in receiving area's on insulator, and what reduction insulator was subject to damages
Evil, improves the life-span of insulator, also increases the maximum voltage that insulation can be born, and improves the lightning-arrest of overvoltage protection device
Property.
It is further arranged to：Also include the mounting bracket that insulator is fixedly connected, the mounting bracket bag with spark gap
The first connecting plate and the second connecting plate for being shaped as L-shaped is included, first connecting plate includes the first fixing end and the first connection end,
Second connecting plate includes that the second fixing end and the second connection end, the insulator are fixed in the first fixing end, described keeps away
Thunder device is fixed in the second fixing end, and first connection end and the second connection end are detachably connected.
By above-mentioned setting, the first connecting plate and the second connecting plate are fixed by the first connection end and the second connection end, are made
The displacement of radial direction will not occur between the first connecting plate and the second connecting plate, make the space change between draining ring and insulator,
Reduce lightning-arrest performance.
It is further arranged to：First connection end be all uniformly arranged useful being fixedly connected on the length direction of the second connection end
Connecting hole, the length of first connection end is longer than the length of the second connection end, the number of connecting hole on first connection end
Mesh is four, and on second connection end, the number of connecting hole is three.
By above-mentioned setting, different from spark gap according to insulator, can pass through to connect different connecting holes, regulation keeps away
The height of thunder device, convenient draining ring is adjusted to height is adapted to, improve lightning-arrest performance, at the same fixation make can be to two connecting holes
It is fixed, plays radially fixed effect, prevents from rotating.
It is further arranged to：It is provided with second fixing end and is plugged in the groove of spark gap bottom, limits spark gap
The second projection for rotating.
By above-mentioned setting, the second projection is plugged in the bottom of spark gap, contradicts with the bottom surface of spark gap, limits spark gap
Rotate；Avoiding spark gap from rotating drives draining ring to rotate, and makes the space change between draining ring and insulator, reduces lightning-arrest property
Energy.
It is further arranged to：Wire casing and line ball power transmission line being fixed in wire casing is provided with the top of the insulator
Plate.
By above-mentioned setting, the top of insulator is fixed on power transmission line by tension disc, makes insulator and drainage system
Parallel connection, when thunderbolt shaft tower or lightning conducter, the high potential that lightning current causes makes the series gap of line protector work, and reduces
Potential difference between tower arm and wire, it is ensured that insulator no longer flashover, so as to avoid line tripping from having a power failure.
In sum, this utility model has the advantages that：A kind of radially fixed firm overvoltage of draining ring is protected
Shield device.
Description of the drawings
Front views of the Fig. 1 for the present embodiment；
Top views of the Fig. 2 for the present embodiment；
Fig. 3 is the structural representation of draining ring in the present embodiment；
Fig. 4 is the structural representation of mounting bracket in the present embodiment.
Reference in figure：1st, draining ring；11st, drain semi-ring；111st, crotch section；112nd, ring segment；113rd, linkage section；
12nd, fixture；121st, fixing hole；122nd, locating convex block；2nd, spark gap；3rd, insulator；31st, tension disc；32nd, wire casing；4th, install
Support；41st, the first connecting plate；411st, the first fixing end；412nd, the first connection end；42nd, the second connecting plate；421st, second fix
End；422nd, the second connection end；423rd, the second projection；43rd, connecting hole；5th, power transmission line.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, 2, a kind of overvoltage protection device includes the mounting bracket 4 for fixed insulation 3 and spark gap 2,
Mounting bracket 4 includes the first connecting plate 41 and the second connecting plate 42 for being shaped as L-shaped, and the bottom of insulator is fixed on the first fixation
On end 411, the bottom of spark gap 2 is fixed in the second fixing end 421, is provided with and 2 bottom of spark gap in the second fixing end 421
Second projection 423 of portion's clamping, prevents spark gap 2 from being rotated by external force effect；First connection end 412 and the second connection
End 422 is fastenedly connected radially fixed effect by two screw bolt and nut through connecting hole 43, prevents 41 phase of the first connecting plate
For the second connecting plate 42 is rotated；It is longer than the second connection end 422, the first connection end 412 to the length of wherein the first connection end 412
Length direction on be provided with four connecting holes 43, be provided with three connecting holes 43 on the second connection end 422, according to insulator 3
Different with the connection of the height of spark gap 2, the correspondence position of connecting hole 43 is adjusted, the height for adjusting insulator 3 and spark gap 2 is played
The effect of degree.
Power transmission line 5 is through in the wire casing 32 at the top of insulator 3, then passes through two bolts by the tension disc at the top of insulator 3
31 fastenings are pushed, and make to be fixed on power transmission line 5 at the top of insulator 3；Draining ring 1 is provided with the top of spark gap 2, and bolt is through fixation
Fixing hole 121 on part 12 is threadedly secured on spark gap 2, and the axial direction of draining ring 1 is fixed；Positioning on fixture 12
Projection 122 is plugged in 2 top fixing hole 121 of spark gap, plays the effect radially fixed to draining ring 1；By to draining ring 1
Radial and axial Dual positioning makes the ring segment 112 on draining ring 1 be socketed in 3 outer end of insulator, and the outer end with insulator 3
Uniform gap is provided with, each point balance in receiving area's on insulator 3 is made, what reduction insulator 3 was subject to damages, and improves insulator
3 life-span.
As shown in figure 3, draining ring 1 includes two drain semi-rings 11 being oppositely arranged, therefore need not be disposable by drain
Ring 1 is processed, convenient processing；Crotch section 111 that two drain semi-rings 11 integrally set gradually, ring segment 112, linkage section
113, the curved end of the side of fixture 12 is integrally connected to the bottom surface of linkage section 113, and the centre position of fixture 12 is arranged
There is fixing hole 121, on the bottom surface of the curved end of the opposite side of fixture 12, be provided with the locating convex block 122 of truncated cone-shaped, round platform
The locating convex block 122 of shape is plugged on more firm in the fixing hole 121 at the top of spark gap 2.
As shown in figure 4, mounting bracket 4 includes the first connecting plate 41 and the second connecting plate 42 for being shaped as L-shaped, insulator 3
It is fixed in the first fixing end 411, spark gap 2 is fixed in the second fixing end 421, the first connection end 412 and the second connection end
422 are fixedly connected by connecting hole 43, and the length of wherein the first connection end 412 is longer than the length of the second connection end 422, and first connects
The number for connecing connecting hole 43 on end 412 is four, and on the second connection end 422, the number of connecting hole 43 is three.
This specific embodiment is only which is not to restriction of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification without creative contribution after this specification is read as needed to the present embodiment, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (8)
1. a kind of overvoltage protection device, including draining ring (1) and spark gap (2), it is characterised in that：Set on draining ring (1)
Be equipped with fixture (12), be provided with fixture (12) fixing hole (121) corresponding with the upper spliced eye of spark gap (2) and
Grafting is fixed on the locating convex block (122) in the location hole at the top of spark gap (2).
2. overvoltage protection device according to claim 1, it is characterised in that：Described draining ring (1) is symmetrically set including two
The drain semi-ring (11) that puts, drain semi-ring (11) include being sequentially connected crotch section（111）, ring segment (112), linkage section (113),
Fixture (12) are fixed on linkage section (113).
3. overvoltage protection device according to claim 2, it is characterised in that：Also include insulator (3), the ring segment
(112) outer end of insulator (3) is socketed in, and the inwall of ring segment (112) is provided with uniformly with the outer end of insulator (3)
Gap.
4. overvoltage protection device according to claim 3, it is characterised in that：Also include insulator (3) and spark gap (2)
The mounting bracket (4) being fixedly connected, described mounting bracket (4) include the first connecting plate (41) for being shaped as L-shaped and the second connection
Plate (42), described first connecting plate (41) include the first fixing end (411) and the first connection end (412), second connecting plate
(42) the second fixing end (421) and the second connection end (422) are included, insulator (3) are fixed on the first fixing end (411)
On, spark gap (2) are fixed in the second fixing end (421), the first connection end (412) and the second connection end (422)
It is detachably connected.
5. overvoltage protection device according to claim 4, it is characterised in that：First connection end (412) and the second connection end
(422) the useful connecting hole (43) being fixedly connected, the length of the first connection end (412) are all uniformly arranged on length direction
It is longer than the length of the second connection end (422).
6. overvoltage protection device according to claim 5, it is characterised in that：Described first connection end (412) upper connecting hole
(43) number is four, and the number of described second connection end (422) upper connecting hole (43) is three.
7. according to claim 4 overvoltage protection device, it is characterised in that：It is provided with second fixing end (421)
It is plugged in the groove of spark gap (2) bottom, limits the second projection (423) that spark gap (2) is rotated.
8. according to claim 3 overvoltage protection device, it is characterised in that：The top of insulator (3) arranges wired
Groove (32), the tension disc (31) power transmission line (5) being fixed in wire casing (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621025640.9U CN206023208U (en) | 2016-08-31 | 2016-08-31 | A kind of overvoltage protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621025640.9U CN206023208U (en) | 2016-08-31 | 2016-08-31 | A kind of overvoltage protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023208U true CN206023208U (en) | 2017-03-15 |
Family
ID=58258408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621025640.9U Active CN206023208U (en) | 2016-08-31 | 2016-08-31 | A kind of overvoltage protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206023208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311345A (en) * | 2019-06-18 | 2019-10-08 | 浙江伏尔特电器有限公司 | Over-voltage protector and its mounting rack |
| CN112928724A (en) * | 2021-01-26 | 2021-06-08 | 芜湖市凯鑫避雷器有限责任公司 | High-safety combined lightning arrester |
-
2016
- 2016-08-31 CN CN201621025640.9U patent/CN206023208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311345A (en) * | 2019-06-18 | 2019-10-08 | 浙江伏尔特电器有限公司 | Over-voltage protector and its mounting rack |
| CN112928724A (en) * | 2021-01-26 | 2021-06-08 | 芜湖市凯鑫避雷器有限责任公司 | High-safety combined lightning arrester |
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| GR01 | Patent grant |