CN206098272U - Automatic switch for high voltage transmission lines - Google Patents
Automatic switch for high voltage transmission lines Download PDFInfo
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- CN206098272U CN206098272U CN201620934138.3U CN201620934138U CN206098272U CN 206098272 U CN206098272 U CN 206098272U CN 201620934138 U CN201620934138 U CN 201620934138U CN 206098272 U CN206098272 U CN 206098272U
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- vacuum interrupter
- cylinder
- contact
- feeler lever
- fastening block
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Abstract
The utility model discloses an automatic switch for high voltage transmission lines, including barrel and apron, be equipped with vacuum interrupter in the barrel, vacuum interrupter's top is arranged in to the fastening block, install hollow round platform on the external circumferential wall of fastening block, open on the inner wall of barrel upper end have with hollow round platform matched with draw -in groove, vacuum interrupter is connected with the fastening block, be equipped with the supporting shoe on the cylinder bottom inner wall, the limiting plate is fixed on the supporting shoe, be connected with inside hollow guide post and ejector pin respectively at vacuum interrupter both ends, install the rubber ball in the upper end of ejector pin, rubber ball up end and the contact of apron inner wall, it has the through -hole to open in the middle part of the limiting plate, the through -hole is run through in proper order to insulating pull rod upper end, movable contact pole with vacuum interrupter behind the guide post contacts. When breaking down, only need open the apron, utilize the clearance fit between hollow round platform and the draw -in groove, can take out fixed block and vacuum interrupter in the lump, abandon the complicated installation disassembly step of traditional circuit breaker, greatly reduced staff's intensity of labour.
Description
Technical field
This utility model is related to vacuum circuit breaker technical field, specifically refers to a kind of high-tension line automatic switch.
Background technology
In a kind of high-tension line automatic switch of the prior art, vacuum interrupter typically passes through upper bracket and lower carriage
In insulating sleeve.This mounting structure and mounting means, as the installation site of lower carriage itself needs other parts
To fix so that vacuum interrupter after insulating sleeve inside is installed to, easily rock by lower end, a kind of whole high-tension line is used
The normal work of automatic switch has a great impact, and the installation process operation of vacuum interrupter of the prior art is more multiple
It is miscellaneous, break down complex when changing, affect a kind of work efficiency of high-tension line automatic switch.
Utility model content
The purpose of this utility model is to provide a kind of high-tension line automatic switch, it is to avoid vacuum interrupter occurs to shake
It is dynamic, effectively improve mounting stability of the vacuum interrupter in cylinder.
The purpose of this utility model is achieved through the following technical solutions：
A kind of high-tension line automatic switch, including single injection-molded cylinder and with cylinder upper end screw thread coordinate
Cover plate, be provided with vacuum interrupter in the cylinder, circular fastening block is placed in the top of vacuum interrupter, and in fastening block
Outer circle wall on resilient hollow round table is installed, the draw-in groove being engaged with hollow round table is provided with the inwall of cylinder upper end,
The vacuum interrupter upper surface is connected with fastening block by bolt, and the cylinder lower end inner wall is provided with support block, limiting plate
Being fixed in support block, the lead column and push rod of inner hollow being connected at the vacuum interrupter two ends, institute's push rod is passed through
Upwardly extend after wearing in the middle part of fastening block, and ball is installed in the upper end of push rod, the ball is connect with the cover plate inwall
Touch, be provided with through hole in the middle part of the limiting plate, insulated tension pole upper end sequentially pass through after the through hole, lead column with vacuum interrupter
Movable feeler lever contact, the vacuum interrupter includes housing, be provided with housing radome, corrugated tube, coaxial stationary contact bar with
Movable feeler lever, corrugated tube are fixed on inner walls lower end and are set in movable feeler lever epimere, and the movable feeler lever hypomere runs through vacuum extinction
Extend in the lead column behind the lower end of room, radome is fixed between movable feeler lever, stationary contact bar and inner walls, under stationary contact bar
End is provided with static contact, the moving contact coordinated with static contact is provided with movable feeler lever upper end, and static contact is helicla flute with moving contact
Horizontal magnetic, insulated tension pole upper end are connected with movable feeler lever after sequentially passing through the through hole, lead column and vacuum interrupter lower end, in institute
Stating and groove is provided with the middle part of moving contact upper surface, the columnar protrusions with groove fit are provided with the middle part of static contact lower surface.
During use, cover plate is threaded connection to realize the sealing on vacuum interrupter top, in cylinder with cylinder upper end
Portion is provided with support block, and limiting plate is fixed in support block, to realize sealing to vacuum interrupter bottom, i.e., goes out ensureing vacuum
On the premise of arc chamber normal work, the dust-proof grade of vacuum interrupter in cylinder is reached.Fastening block is provided with cylinder upper end simultaneously,
And resilient hollow round table is set on the outer circle wall of fastening block, the draw-in groove phase interworking that hollow round table is started with cylinder inboard wall
Close, and push rod is provided with the ball contacted with cover plate inwall through the middle part of fastening block in push rod upper end, and vacuum extinction
The upper end of room is connected with fastening block, i.e., contacted using the mutual support between ball and cover plate so that vacuum interrupter it is upper
Portion is stably fixed；And in the middle part of cylinder, the limiting plate in support block provides support for vacuum interrupter, and then ensure that vacuum is gone out
The entirety of arc chamber is in cylinder by stable holding, it is to avoid vacuum interrupter shakes, and effectively improves vacuum interrupter in cylinder
Interior mounting stability.Wherein, break down need to change vacuum interrupter when, only need to open cover plate, using hollow round table
Fixed block and vacuum interrupter can be taken out by clearance fit between draw-in groove in the lump, abandon traditional chopper complicated
Installing/dismounting step, greatly reduce the labor intensity of staff.
Further, from the horizontal magnetic of helicla flute as moving contact, static contact, can be in disjunction short circuit current, can be in its electricity
Interpolar results from the magnetic field of electrode axis perpendicular, and in the presence of enough transverse magnetic fields, vacuum arc is along the surface of contact
Constantly high-speed motion, and then avoid the serious thawing of contact surface, after current over-zero can convalescent period dielectric strength rapidly,
While being conducive to arc extinction, the loss to moving contact and static contact is greatly reduced, reduced to vacuum interrupter more
Frequency is changed, and extends the service life of chopper.Also, during prolonged use, moving contact and static contact exist
Constantly during disjunction short circuit current, both contact portions can engender loss, i.e., in moving contact or the contact of static contact
Occur depression on end face, and then cause, after arc extinction, occur loose contact between moving contact and static contact, to cause line
There is breaking phenomena in road, and inventor opens up groove in moving contact upper surface, and arranges and groove fit in static contact lower surface
Columnar protrusions, and the axial length of the columnar protrusions is in the range of 6 ~ 8 ㎜, is not affecting moving contact with static contact disjunction short circuit electricity
On the premise of stream, it is ensured that possess enough contacts area between moving contact and static contact all the time, to ensure the unobstructed of whole circuit.
Wherein, in vacuum extinction room, corrugated tube can guarantee that fully sealing inside vacuum interrupter, again can be outside vacuum extinction room
Moving contact is made to do division campaign with static contact during portion's actuating, and when electric arc is produced, moving contact when radome can adsorb arcing
And the metallic vapour evaporated on static contact, prevent from housing, causing dielectric strength to reduce and insulate because of the pollution of metallic vapour
Destruction, and be conducive to the rapid recovery of the penetrating arc gap dielectric strength of blow-out, similarly, in vacuum extinction room, radome will
Corrugated tube is covered, and can be reduced scaling loss degree of the corrugated tube by metallic vapour, and then be increased the service life of vacuum interrupter.
Upper end wire outlet seat and lower end wire outlet seat are respectively equipped with the side wall of the cylinder.There is seat with in the upper end of setting
Hold wire outlet seat facilitate and enter row conductor connection to the stationary contact bar in vacuum extinction room, movable feeler lever, while in upper end wire outlet seat with
Using the higher wire outlet seat of classification of waterproof on the wire outlet seat of end, and then improve the waterproof in inner barrel, particularly vacuum extinction room
Dust-proof effect.
Elastic sheet metal is provided with the inwall of the cylinder, and the end of the elastic sheet metal is upper with insulated tension pole
End connection.When moving contact in vacuum interrupter is separated with static contact, movable feeler lever can drive insulated tension pole to move down, and work as vacuum electric
Arc disappear when, the back-moving spring on elastic sheet metal coordinated insulation pull bar together to insulated tension pole and movable feeler lever generation effect,
So that insulated tension pole and movable feeler lever Rapid reset.
This utility model compared with prior art, has the following advantages and advantages：
1st, this utility model break down need to change vacuum interrupter when, only need to open cover plate, using hollow round table
Fixed block and vacuum interrupter can be taken out by clearance fit between draw-in groove in the lump, abandon traditional chopper complicated
Installing/dismounting step, greatly reduce the labor intensity of staff；
2nd, when moving contact of this utility model in vacuum interrupter is separated with static contact, movable feeler lever can drive insulated tension pole
Move down, when vacuum arc disappears, the back-moving spring on elastic sheet metal coordinated insulation pull bar to insulated tension pole and is moved together
Feeler lever generation effect so that insulated tension pole and movable feeler lever Rapid reset；
3rd, this utility model is provided with through hole in the middle part of ball so that vacuum interrupter moving contact separate with static contact or
When the applied stress produced when being contact again is transferred at cover plate, ball is by the deformation of itself and replys produced by deformation
Elastic force the applied stress is eliminated, and make ball have certain deformation empty in the middle part of which when compressed in opening up for through hole
Between, to avoid the mutually caused internal stress of extruding inside ball from concentrating, reduce the extent of deterioration of ball, prolonged with reaching
The purpose of long ball service life and reduction chopper frequency of maintenance.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding this utility model embodiment, constitutes the one of the application
Part, does not constitute the restriction to this utility model embodiment.In the accompanying drawings：
Fig. 1 is this utility model structural representation；
Sectional views of the Fig. 2 for vacuum interrupter；
Fig. 3 is the structural representation of static contact and moving contact.
Labelling and corresponding parts title in accompanying drawing：
1- cylinders, 2- vacuum interrupters, 21- stationary contact bars, 22- static contacts, 23- moving contacts, 24- movable feeler levers, 25- ripples
Pipe, 26- radomes, 27- shells, 28- projections, 29- grooves, 3- elastic sheet metals, 4- lead columns, 5- limiting plates, 6- support blocks,
7- insulated tension poles, 8- fastening blocks, 9- cover plates, 10- push rods, 11- ball, 12- upper ends wire outlet seat, 13- lower ends wire outlet seat.
Specific embodiment
To make 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
As shown in Fig. 1 ~ 3, the present embodiment is included the cylinder 1 of single injection-molded and is coordinated with 1 upper end screw thread of cylinder
Cover plate 9, be provided with vacuum interrupter 2 in the cylinder 1, circular fastening block 8 is placed in the top of vacuum interrupter 2, and
Resilient hollow round table is installed on the outer circle wall of fastening block 8, is provided with 1 upper end inwall of cylinder and is engaged with hollow round table
Draw-in groove, 2 upper surface of the vacuum interrupter is connected with fastening block 8 by bolt, and 1 lower end inner wall of the cylinder is provided with support
Block 6, limiting plate 5 are fixed in support block 6, are connected to 4 He of lead column of inner hollow at 2 two ends of the vacuum interrupter
Push rod 10, institute's push rod 10 are upwardly extended after running through in the middle part of fastening block 8, and are provided with ball 11 in the upper end of push rod 10, described
Ball 11 is contacted with 9 inwall of the cover plate, and through hole is provided with the middle part of the limiting plate 5, and 7 upper end of insulated tension pole sequentially passes through institute
Contact with the movable feeler lever of vacuum interrupter 2 after stating through hole, lead column 4, the vacuum interrupter 2 includes housing 27, in housing 27
Radome 26, corrugated tube 25, coaxial stationary contact bar 21 and movable feeler lever 24 are provided with inside, corrugated tube 25 is fixed on 7 inwall lower end of housing
And 24 epimere of movable feeler lever is set in, 24 hypomere of the movable feeler lever prolongs behind 2 lower end of vacuum interrupter in the lead column 4
Stretch, radome 26 is fixed between movable feeler lever 23,27 inwall of stationary contact bar 22 and housing, is provided with static contact in 21 lower end of stationary contact bar
22, the moving contact 23 coordinated with static contact 22 is provided with 24 upper end of movable feeler lever, and static contact 22 is helicla flute with moving contact 23
Horizontal magnetic, 7 upper end of insulated tension pole are sequentially passed through the through hole, lead column 4 and vacuum interrupter and are connected with movable feeler lever 24 behind 2 lower end
Connect, groove 28 is provided with the middle part of 23 upper surface of the moving contact, be provided with and match somebody with somebody with groove 28 in the middle part of 22 lower surface of static contact
The columnar protrusions 29 of conjunction.
During use, cover plate 9 is threaded connection to realize the sealing on 2 top of vacuum interrupter, in cylinder with 1 upper end of cylinder
Support block 6 is provided with the middle part of in the of 1, limiting plate 5 is fixed in support block 6, to realize the sealing to 2 bottom of vacuum interrupter, that is, is being protected
On the premise of card 2 normal work of vacuum interrupter, the dust-proof grade of vacuum interrupter 2 in cylinder 1 is reached.Simultaneously on cylinder 1
End is provided with fastening block 8, and resilient hollow round table is set on the outer circle wall of fastening block 8, and hollow round table is opened with 1 inwall of cylinder
The draw-in groove of beginning cooperates, and push rod 10 is provided with 10 upper end of push rod and is connect with 9 inwall of cover plate through the middle part of fastening block 8
Tactile ball 11, and the upper end of vacuum interrupter 2 is connected with fastening block 8, i.e., using mutual between ball 11 and cover plate 9
Support contact so that the top of vacuum interrupter 2 is stably fixed；And in the middle part of cylinder 1, the limiting plate 5 in support block 6 is true
Empty arc-chutes 2 provide support, and then ensure the overall interior by stable holding in cylinder 1 of vacuum interrupter 2, it is to avoid vacuum interrupter
2 shake, and effectively improve mounting stability of the vacuum interrupter 2 in cylinder 1.Wherein, change true in the needs that break down
During empty arc-chutes 2, cover plate 9 need to be opened only, using the clearance fit between hollow round table and draw-in groove, can be by fixed block and vacuum
Arc-chutes 2 are taken out in the lump, have been abandoned the complicated installing/dismounting step of traditional chopper, have been greatly reduced the work of staff
Intensity.
Further, from the horizontal magnetic of helicla flute as moving contact 23, static contact 22, can be in disjunction short circuit current, can be
The magnetic field of electrode axis perpendicular is resulted between its electrode, in the presence of enough transverse magnetic fields, vacuum arc is along contact
Surface constantly high-speed motion, and then the serious thawing of contact surface is avoided, being capable of convalescent period insulation rapidly after current over-zero
Intensity, while being conducive to arc extinction, greatly reduces the loss to moving contact 23 and static contact 22, and reduction is gone out to vacuum
The replacement frequency of arc chamber, and extend the service life of chopper.Also, during prolonged use, moving contact 23 with
And static contact 22 is in constantly disjunction short circuit current, both contact portion can engender loss, i.e., in moving contact 23 or
It is depression on the contact end face of static contact 22, occur, and then causes after arc extinction, between moving contact 23 and static contact 22
There is loose contact, breaking phenomena occur to cause circuit, inventor opens up groove 28 in 23 upper surface of moving contact, and in stationary contact
22 lower surfaces arrange the columnar protrusions 29 coordinated with groove 28, and the axial length of the columnar protrusions 29 is in the range of 6 ~ 8 ㎜,
On the premise of moving contact 23 and 22 disjunction short circuit current of static contact is not affected, it is ensured that between moving contact 23 and static contact 22 all the time
Possess enough contacts area, to ensure the unobstructed of whole circuit.Wherein, in vacuum interrupter 2, corrugated tube 25 can guarantee that
Fully sealing inside vacuum interrupter 2, can be such that moving contact 23 divides with static contact 22 again in 2 outside actuating of vacuum interrupter
Resultant motion, and when electric arc is produced, the metal evaporated on moving contact 23 and static contact 22 when radome 26 can adsorb arcing
Steam, prevents from causing because of the pollution of metallic vapour dielectric strength to reduce and insulation breakdown in housing 27, and is conducive to blow-out
The rapid recovery of penetrating arc gap dielectric strength, similarly, in vacuum interrupter 2, corrugated tube 25 is covered by radome 27, can
Scaling loss degree of the corrugated tube 25 by metallic vapour is reduced, and then increases the service life of vacuum interrupter 2.
Upper end wire outlet seat 12 and lower end wire outlet seat 13 are respectively equipped with the side wall of the cylinder 1.The upper end of setting occurs
Seat can facilitate the stationary contact bar in vacuum interrupter 2, movable feeler lever are entered row conductor and be connected with lower end wire outlet seat 13, while bringing out upper
Using the wire outlet seat that classification of waterproof is higher on line seat 12 and lower end wire outlet seat 13, and then improve inside cylinder 1, particularly vacuum is gone out
Water proof and dust proof effect in arc chamber 2.
Elastic sheet metal 3, and the end of the elastic sheet metal 3 and insulated tension pole 7 are provided with the inwall of the cylinder 1
Upper end connection.When moving contact in vacuum interrupter 2 is separated with static contact, movable feeler lever can drive insulated tension pole 7 to move down, when
When vacuum arc disappears, the back-moving spring on 3 coordinated insulation pull bar 7 of elastic sheet metal is together to insulated tension pole 7 and movable feeler lever
Generation is acted on so that insulated tension pole 7 and movable feeler lever Rapid reset.
Above-described specific embodiment, is entered to the purpose of this utility model, technical scheme and beneficial effect
One step is described in detail, be should be understood that to the foregoing is only specific embodiment of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all any modifications within spirit of the present utility model and principle, made, equivalent are replaced
Change, improve, should be included within protection domain of the present utility model.
Claims (1)
1. a kind of cylinder (1) of high-tension line automatic switch, including single injection-molded and with cylinder (1) upper end screw thread
The cover plate (9) of cooperation, it is characterised in that：Vacuum interrupter (2) is provided with the cylinder (1), circular fastening block (8) is placed in
The top of vacuum interrupter (2), and resilient hollow round table is installed on the outer circle wall of fastening block (8), on cylinder (1)
The draw-in groove being engaged with hollow round table is provided with the inwall of end, vacuum interrupter (2) upper surface is by bolt and fastening block (8)
Connection, cylinder (1) lower end inner wall are provided with support block (6), and limiting plate (5) is fixed in support block (6), in the vacuum
Arc-chutes (2) two ends are connected to the lead column (4) and push rod (10) of inner hollow, and the push rod (10) is through fastening block
(8) upwardly extend after in the middle part of, and ball (11), the ball (11) and the cover plate are installed in the upper end of push rod (10)
(9) inwall contact, through hole is provided with the middle part of the limiting plate (5), the vacuum interrupter (2) including housing (27), in housing
(27) radome (26), corrugated tube (25), coaxial stationary contact bar (21) and movable feeler lever (24) are provided with, corrugated tube (25) is fixed on
Housing (7) inwall lower end and movable feeler lever (24) epimere is set in, movable feeler lever (24) hypomere runs through vacuum interrupter (2) lower end
Extend in the lead column (4) afterwards, radome (26) be fixed on movable feeler lever (24), stationary contact bar (22) and housing (27) inwall it
Between, static contact (22) is provided with stationary contact bar (21) lower end, be provided with dynamic tactile with what static contact (22) coordinated in movable feeler lever (24) upper end
Head (23), and static contact (22) is the horizontal magnetic of helicla flute with moving contact (23), insulated tension pole (7) upper end sequentially passes through described logical
It is connected with movable feeler lever (24) behind hole, lead column (4) and vacuum interrupter (2) lower end, in the moving contact (23) upper surface
Middle part is provided with groove (28), and the columnar protrusions (29) coordinated with groove (28) are provided with the middle part of static contact (22) lower surface；
Upper end wire outlet seat (12) and lower end wire outlet seat (13) are respectively equipped with the side wall of the cylinder (1)；In the inwall of the cylinder (1)
Elastic sheet metal (3) is provided with, and the end of the elastic sheet metal (3) is connected with the upper end of insulated tension pole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620934138.3U CN206098272U (en) | 2016-08-25 | 2016-08-25 | Automatic switch for high voltage transmission lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620934138.3U CN206098272U (en) | 2016-08-25 | 2016-08-25 | Automatic switch for high voltage transmission lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206098272U true CN206098272U (en) | 2017-04-12 |
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ID=58468848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620934138.3U Active CN206098272U (en) | 2016-08-25 | 2016-08-25 | Automatic switch for high voltage transmission lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206098272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002237A (en) * | 2017-11-30 | 2018-05-08 | 无锡翔煌电气有限公司 | A kind of crane travelling limiter |
-
2016
- 2016-08-25 CN CN201620934138.3U patent/CN206098272U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002237A (en) * | 2017-11-30 | 2018-05-08 | 无锡翔煌电气有限公司 | A kind of crane travelling limiter |
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