CN110047689A - A kind of grading shield and disconnecting switch - Google Patents
A kind of grading shield and disconnecting switch Download PDFInfo
- Publication number
- CN110047689A CN110047689A CN201910199274.0A CN201910199274A CN110047689A CN 110047689 A CN110047689 A CN 110047689A CN 201910199274 A CN201910199274 A CN 201910199274A CN 110047689 A CN110047689 A CN 110047689A
- Authority
- CN
- China
- Prior art keywords
- lower cover
- hole
- grading shield
- cover
- inner stopper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
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- Details Of Indoor Wiring (AREA)
Abstract
The present invention relates to a kind of grading shield and disconnecting switch.Grading shield includes upper outlet body and lower cover, one of them of upper outlet body and lower cover are equipped with inner stopper structure, another can be inserted into the fastening that upper and lower cover is realized in inner stopper structure, connecting hole is correspondingly provided in the equitant cover wall of upper and lower cover, and upper and lower cover realizes releasable connection by the connector being installed in corresponding connecting hole, upper and lower cover is integrally in mushroom-shaped after being fastened and connected, the bottom of lower cover is equipped with the through hole that portion is inserted into the inner for support insulator, is equipped in lower cover for the connection structure with support insulator direct or indirect connection.Grading shield in the present invention passes through inner stopper structure during installation accurately to position upper lower cover, and connector can directly be put into from outside and be attached to upper and lower cover, and assembling process is simple and convenient, reduces installation difficulty, improve installation effectiveness.
Description
Technical field
The present invention relates to a kind of grading shield and disconnecting switch.
Background technique
The high voltage electric equipments such as extra-high-voltage isolated switch generally use the grading ring with a fixed-caliber as electric field shielding
Efficient apparatus, for high-voltage charged body is shielded generally using up and down or the grading ring group of left and right arrangement is by electrification in high voltage as far as possible
Body is wrapped in centre, with homogeneous space electric field, avoids local electric field strength prominent, influences the electrical equipments such as extra-high-voltage isolated switch
Insulation performance；But reach the equipment such as 800-1100kV or more, and disconnecting switch in voltage class to need to be mounted on indoor environment
When, to save indoor place, equipment electric clearance is extremely compact, all very tight between equipment and between equipment and wall and roof
It gathering, common cyclic annular pressure-equalizing device causes the electrification bulk electric field such as intermediate equipment fitting prominent due to intermediate large area cavity,
It can occur to discharge suddenly under biggish overvoltage, seriously affect high-voltage fence stable operation.Therefore for this electric field environment ten
The case where dividing saturation, it is accordingly required in particular to a kind of screening arrangement for capableing of effectively shielding device high-voltage charged body, and this device
Mounting process and difficulty needs are suitable with grading ring, not will cause installation trouble and difficulty.
Application publication number is that the Chinese invention patent application of CN108922820A discloses a kind of shielding case.The shielding case packet
Upper outlet body and lower cover are included, is provided with the first hole passed through for support insulator on shielding case, the first hole, that is, through hole,
The side of shielding case, which is equipped with, is used for moving contact the second hole passed through and the third hole passed through for external connection bus, the
One, second and third hole be inner bead structure.It is welded with lower connection bent plate on the inside of the upper edge of the lower cover of the shielding case,
The top of lower connection bent plate is extend out to above the upper edge of lower cover；It is welded with connection bent plate on the inside of the lower edge of upper outlet body,
The top of lower connection bent plate bends and is equipped with waist round hole, and the lower part of upper connection bent plate bends and be equipped with waist round hole, and upper and lower cover leads to
It crosses the bolt being placed in two waist round hole and realizes connection.
Above-mentioned shielding case is attached by being set to the connection bent plate inside shielding case, after upper and lower cover fastening, is needed
To be extend by second, third hole inside cover can just screw bolt, result in assembly more inconvenient in this way, installation difficulty
Larger and installation effectiveness is low.
Summary of the invention
It is internal by being set to solve shielding case in the prior art the purpose of the present invention is to provide a kind of grading shield
Connection bent plate is attached, and assembly is more inconvenient, the problem that installation difficulty is larger and installation effectiveness is low；The purpose of the present invention also exists
In providing a kind of disconnecting switch, more inconvenient to solve disconnecting switch assembly in the prior art, installation difficulty is larger and installation is imitated
The low problem of rate.
To achieve the above object, the technical solution of grading shield of the invention is:
One of them of grading shield, including upper outlet body and lower cover, upper outlet body and lower cover are equipped with inner stopper structure, another
It can be inserted into the fastening for realizing upper and lower cover in inner stopper structure, be correspondingly provided with connection in the upper and lower equitant cover wall of cover
Hole, and upper and lower cover realizes releasable connection by the connector being installed in corresponding connecting hole, upper and lower cover is fastened and connected
Entirety is in mushroom-shaped afterwards, and the bottom of lower cover is equipped with the through hole that portion is inserted into the inner for support insulator, is equipped with use in lower cover
In the connection structure with support insulator direct or indirect connection.
The beneficial effect of grading shield of the invention is: the grading shield in the present invention is in one of them of upper outlet body and lower cover
It is equipped with inner stopper structure, another can be inserted into the fastening that upper and lower cover is realized in inner stopper structure, and in upper and lower cover
It is attached at equitant cover wall by the connector being arranged in connecting hole.It can be to upper by inner stopper structure when installation
Lower cover is accurately positioned, and connector can directly be put into from outside and be attached to upper and lower cover, and assembling process is simple
It is convenient, installation difficulty is reduced, installation effectiveness is improved.
Further, for the inner stopper structure setting on lower cover, upper and lower cover outer surface at closed position is flat
Together.Integrally in mushroom-shaped after being fastened and connected due to upper and lower cover, by inner stopper structure setting on lower cover after, inner stopper knot
Structure is more convenient when upper outlet body fastens downwards towards lower cover inner inclination, and upper and lower cover outer surface at closed position is flat
It can be improved the shield effectiveness of grading shield together.
Further, one of them of upper outlet body and lower cover are welded on the inside of abutting edge extends along abutting edge
Connection strap, part connection strap protrudes the end face of abutting edge and constitutes the inner stopper structure with abutting edge.By direct
Item is welded to connect in one of them of upper outlet body and lower cover to form inner stopper structure, upper outlet body or lower cover can be simplified
The production process of body, production easy to produce.
Further, in the connecting hole being correspondingly arranged in the equitant cover wall of upper and lower cover, the connecting hole positioned at outside is
Counterbore, the connecting hole positioned inside are threaded hole, and the connector is sunk screw.Matched by the counterbore in dormant bolt and outside
Conjunction can make dormant bolt end and grading shield cover flush with outer surface, improve grading shield shield effectiveness.
Further, the through hole is located within the scope of the vertical projection of the upper end opening of lower cover.Under through hole is located at
It is convenient for that support insulator being installed by upper end opening within the scope of the vertical projection of the upper end opening of cover.
Further, there are three the through hole settings, and through hole is evenly arranged around the axis of lower cover.Through hole is equal
Cloth three can make to support son support absolutely more stable.
Further, the through hole is interior hole flanging, and the outer edge of interior hole flanging is provided with for fixing with support insulator
The connecting flange of frame connection.It is more convenient that fixed support insulator is installed by connecting flange.
To achieve the above object, the technical solution of disconnecting switch of the invention is:
Disconnecting switch, including dynamic side unit and quiet side unit, dynamic side unit and quiet side unit include pedestal and are arranged in machine
Support insulator on frame, the upper end of support insulator are equipped with grading shield, and grading shield includes upper outlet body and lower cover, upper outlet body
It is equipped with inner stopper structure with one of them of lower cover, another, which can be inserted into inner stopper structure, realizes upper and lower cover
It fastens, connecting hole is correspondingly provided in the upper and lower equitant cover wall of cover, and upper and lower cover is by being installed on corresponding connection
Connector in hole realizes after releasable connection, upper and lower cover are fastened and connected that integrally the bottom of lower cover is equipped with for branch in mushroom-shaped
Column insulator inserts into the inner the through hole in portion, is equipped in lower cover for the connection knot with support insulator direct or indirect connection
Structure.
The beneficial effect of disconnecting switch of the invention is: grading shield in the present invention in upper outlet body and lower cover wherein one
A to be equipped with inner stopper structure, another can be inserted into the fastening that upper and lower cover is realized in inner stopper structure, and cover above and below
It is attached at the equitant cover wall of body by the connector being arranged in connecting hole.It can be right by inner stopper structure when installation
Upper lower cover is accurately positioned, and connector can directly be put into from outside and be attached to upper and lower cover, assembling process letter
Folk prescription just, reduces installation difficulty, improves installation effectiveness.
Further, for the inner stopper structure setting on lower cover, upper and lower cover outer surface at closed position is flat
Together.Integrally in mushroom-shaped after being fastened and connected due to upper and lower cover, by inner stopper structure setting on lower cover after, inner stopper knot
Structure is more convenient when upper outlet body fastens downwards towards lower cover inner inclination, and upper and lower cover outer surface at closed position is flat
It can be improved the shield effectiveness of grading shield together.
Further, one of them of upper outlet body and lower cover are welded on the inside of abutting edge extends along abutting edge
Connection strap, part connection strap protrudes the end face of abutting edge and constitutes the inner stopper structure with abutting edge.By direct
Item is welded to connect in one of them of upper outlet body and lower cover to form inner stopper structure, upper outlet body or lower cover can be simplified
The production process of body, production easy to produce.
Further, in the connecting hole being correspondingly arranged in the equitant cover wall of upper and lower cover, the connecting hole positioned at outside is
Counterbore, the connecting hole positioned inside are threaded hole, and the connector is sunk screw.Matched by the counterbore in dormant bolt and outside
Conjunction can make dormant bolt end and grading shield cover flush with outer surface, improve grading shield shield effectiveness.
Further, the through hole is located within the scope of the vertical projection of the upper end opening of lower cover.Under through hole is located at
It is convenient for that support insulator being installed by upper end opening within the scope of the vertical projection of the upper end opening of cover.
Further, there are three the through hole settings, and through hole is evenly arranged around the axis of lower cover.Through hole is equal
Cloth three can make to support son support absolutely more stable.
Further, the through hole is interior hole flanging, and the outer edge of interior hole flanging is provided with for fixing with support insulator
The connecting flange of frame connection.It is more convenient that fixed support insulator is installed by connecting flange.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the specific embodiment of disconnecting switch of the invention；
Fig. 2 is the structural schematic diagram of grading shield in the specific embodiment of disconnecting switch of the invention；
Fig. 3 is the schematic diagram of inner stopper structure in the specific embodiment of disconnecting switch of the invention；
Fig. 4 is the top view of lower cover in the specific embodiment of disconnecting switch of the invention；
Fig. 5 be Fig. 4 in along C to through hole side view；
Description of symbols: 1- upper outlet body；The outer connecting hole of 11-；2- lower cover；21- connection strap；22- through hole；Connection in 23-
Hole；The rotating insulated sub- perforation of 24-；25- connecting flange；The perforation of 3- moving contact；The perforation of 4- bus；5- dormant bolt；6- pedestal；7-
Support insulator；8- grading shield.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of disconnecting switch of the invention, as shown in Figure 1, disconnecting switch includes the dynamic side unit positioned at right side
With the quiet side unit for being located at left side, dynamic side unit and quiet side unit include pedestal 6 and the post insulator that is arranged on pedestal 6
Son 7, the upper end of support insulator 7 is equipped with grading shield 8.As shown in Fig. 2, grading shield 8 includes upper outlet body 1 and lower cover 2, upper cover
Body 1 and lower cover 2 are generally hollow mushroom-shaped after being closed.Upper outlet body 1 is fastened by the inner stopper structure being located on lower cover 2
Together.
Specifically, abutting edge is the opening as shown in figure 3, lower cover 2 is docked by the opening of top with upper outlet body
Edge.The edge being open above is welded with connection strap 21, and 21 lower part of connection strap welds together with lower cover 2, and top is convex
For the opening of lower cover 2, and connection strap 21 is located at the parts of 2 overthe openings of lower cover and has also been evenly arranged interconnecting hole
23, outer connecting hole 11 is provided at position corresponding with interconnecting hole 23 after upper outlet body 1 is fastened on lower cover 2.Wherein, interior company
Connecing hole 23 is threaded hole, and outer connecting hole 11 is the counterbore that flaring structure is provided with close to outer surface, and dormant bolt 5 passes through counterbore
It is threadedly engaged afterwards with interconnecting hole 23, and then upper outlet body 1 and lower cover 2 is fixed together.By dormant bolt 5 and outside
The counterbore cooperation of side can make 2 outer surface of lower cover more concordant, improve grading shield shield effectiveness.In other embodiments, outside
Connecting hole is also possible to the identical straight hole of both ends diameter, and the screw of selected outer surface smoother transition is needed install admittedly at this time
It is fixed.In other embodiments, interconnecting hole and outer connecting hole can also be disposed as straight hole, upper and lower cover by with inside and outside company
The elastic cylindrical pin for connecing hole interference fit is fixed.
Connection strap 21 is located at the part of 2 overthe openings of lower cover and constitutes with the end face of 2 opening of lower cover in the present embodiment
Inner stopper structure for snapping together upper and lower cover, it is outer on the interconnecting hole 23 and upper outlet body 1 on connection strap 21
Connecting hole 11 constitutes the connecting hole for installing connector, and dormant bolt 5 constitutes connector.In other embodiments, interior
Fixing structure integrally formed directly on lower cover can also come out, i.e. the lower cover edge that is open above bends out Step-edge Junction
Structure, which first inwardly extend horizontally away after horizontal plane extends stationary plane, interior company according still further to lower cover shape upwards
It connects hole to be arranged on stationary plane, which constitutes inner stopper structure.
As shown in Figure 4 and Figure 5, the side of the cover of grading shield 8 is provided with the perforation of the moving contact for passing through for moving contact 3
With the bus perforation 4 for passing through for external connection bus, moving contact perforation 3 and bus perforation 4 are by upper outlet body 1 and lower cover 2
Notch pairing positioned at edge is constituted.There are three from 2 bottom of lower cover to upper overturning for 2 bottom of the lower cover setting of grading shield 8
The interior hole flanging formed, interior hole flanging are constituted for protruding into the through hole 22 inside grading shield for support insulator 7.Three through holes 22
Axis around lower cover 2 is evenly arranged, and can make to support son support absolutely more stable after through hole 22 is uniformly distributed, and through hole 22 is equal
Within the scope of the vertical projection of the upper end opening of lower cover 2, in this case, pillar is carried out by the upper end opening of lower cover 2
The installation operation of insulator 7 is more convenient.Through hole 22 is also arranged with connecting flange 25 on the outside of hole wall, and connecting flange 25 welds
On the hole wall of through hole 22, for being fixedly connected with support insulator 7.Rotation is additionally provided at 2 bottom centre position of lower cover
Turn insulator perforation 24, rotating insulated sub- 24 structure of perforation is identical as 22 structure of through hole.
Grading shield 8 in the present invention is equipped with inner stopper structure on lower cover 2, and upper outlet body 1 can be inserted into inner stopper structure
The upper fastening for realizing upper and lower cover, and the dormant bolt at the equitant cover wall of upper and lower cover by being arranged in connecting hole
It is attached.Upper and lower cover can accurately be positioned when installation by inner stopper structure, connector can be directly from outer
Side, which is put into, is attached upper and lower cover, and assembling process is simple and convenient, reduces installation difficulty, improves installation effectiveness.
The embodiment of grading shield of the invention, the specific implementation of the structure and above-mentioned disconnecting switch of grading shield in the present embodiment
The structure of grading shield is identical in example, and details are not described herein.
Claims (8)
1. grading shield, including upper outlet body and lower cover, it is characterised in that: one of them of upper outlet body and lower cover are equipped with interior stop
Mouth structure, another can be inserted into the fastening that upper and lower cover is realized in inner stopper structure, in the upper and lower equitant cover wall of cover
It is correspondingly provided with connecting hole, and upper and lower cover realizes releasable connection by the connector being installed in corresponding connecting hole, above,
Lower cover be fastened and connected after integrally in mushroom-shaped, the bottom of lower cover is equipped with the through hole that portion is inserted into the inner for support insulator,
It is equipped in lower cover for the connection structure with support insulator direct or indirect connection.
2. grading shield according to claim 1, it is characterised in that: the inner stopper structure setting is on lower cover, above and below
Cover flush with outer surface at closed position.
3. grading shield according to claim 1 or 2, it is characterised in that: one of them of upper outlet body and lower cover are being docked
Be welded on the inside of edge along abutting edge extend connection strap, part connection strap protrude abutting edge end face and and butt joint edge
Edge constitutes the inner stopper structure.
4. grading shield according to claim 1 or 2, it is characterised in that: be correspondingly arranged in the equitant cover wall of upper and lower cover
Connecting hole in, positioned at outside connecting hole be counterbore, positioned inside connecting hole be threaded hole, the connector be countersunk head spiral shell
Nail.
5. grading shield according to claim 1 or 2, it is characterised in that: the through hole is located at the upper end opening of lower cover
Vertical projection within the scope of.
6. grading shield according to claim 5, it is characterised in that: there are three the through hole settings, and through hole is under
The axis of cover is evenly arranged.
7. grading shield according to claim 1 or 2, it is characterised in that: the through hole is interior hole flanging, the outside of interior hole flanging
Along the connecting flange being provided with for being connect with support insulator fixed frame.
8. disconnecting switch, including dynamic side unit and quiet side unit, dynamic side unit and quiet side unit include that pedestal and setting exist
Support insulator on pedestal, it is characterised in that: the upper end of the support insulator is equipped with any one of the claims 1-7
Described in grading shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199274.0A CN110047689A (en) | 2019-03-15 | 2019-03-15 | A kind of grading shield and disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199274.0A CN110047689A (en) | 2019-03-15 | 2019-03-15 | A kind of grading shield and disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110047689A true CN110047689A (en) | 2019-07-23 |
Family
ID=67273758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910199274.0A Pending CN110047689A (en) | 2019-03-15 | 2019-03-15 | A kind of grading shield and disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110047689A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3527875A (en) * | 1967-11-08 | 1970-09-08 | Anderson Electric Corp | High voltage bus connectors shielded against corona discharge |
| CN202268663U (en) * | 2011-10-25 | 2012-06-06 | 北京网联直流工程技术有限公司 | Bridging over-current hardware of CT (Current Transformer) equipment and tubular bus bar for converter station |
| CN103296622A (en) * | 2013-05-27 | 2013-09-11 | 国家电网公司 | Shield ball fitting for converter station valve hall |
| CN105337230A (en) * | 2015-11-27 | 2016-02-17 | 平高集团有限公司 | Jumper wire connecting metal fitting for tubular bus bar |
| CN106229207A (en) * | 2016-08-23 | 2016-12-14 | 国家电网公司 | Shield gold utensil and use the disconnecting switch of this shielding gold utensil |
| CN108922820A (en) * | 2018-09-29 | 2018-11-30 | 湖南长高高压开关有限公司 | The extra-high-voltage isolated switch split type shielding case of large-scale suspension aperture and fastening method |
-
2019
- 2019-03-15 CN CN201910199274.0A patent/CN110047689A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3527875A (en) * | 1967-11-08 | 1970-09-08 | Anderson Electric Corp | High voltage bus connectors shielded against corona discharge |
| CN202268663U (en) * | 2011-10-25 | 2012-06-06 | 北京网联直流工程技术有限公司 | Bridging over-current hardware of CT (Current Transformer) equipment and tubular bus bar for converter station |
| CN103296622A (en) * | 2013-05-27 | 2013-09-11 | 国家电网公司 | Shield ball fitting for converter station valve hall |
| CN105337230A (en) * | 2015-11-27 | 2016-02-17 | 平高集团有限公司 | Jumper wire connecting metal fitting for tubular bus bar |
| CN106229207A (en) * | 2016-08-23 | 2016-12-14 | 国家电网公司 | Shield gold utensil and use the disconnecting switch of this shielding gold utensil |
| CN108922820A (en) * | 2018-09-29 | 2018-11-30 | 湖南长高高压开关有限公司 | The extra-high-voltage isolated switch split type shielding case of large-scale suspension aperture and fastening method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190723 |