CN206098276U - Outdoor high voltage transmission lines automatic control structure - Google Patents

Abstract

The utility model discloses an outdoor high voltage transmission lines automatic control structure, 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

Outdoor high-voltage circuit automatic control structure

Technical field

This utility model is related to vacuum circuit breaker technical field, specifically refers to outdoor high-voltage circuit automatic control structure.

Background technology

On outdoor high-voltage circuit automatic control structure of the prior art, vacuum interrupter typically passes through upper bracket and lower Frame is arranged in insulating sleeve.This mounting structure and mounting means, due to the installation site of lower carriage itself need other zero Part is fixing so that vacuum interrupter after insulating sleeve inside is installed to, easily rock by lower end, to whole outdoor high-voltage circuit The normal work of automatic control structure has a great impact, and the installation process operation of vacuum interrupter of the prior art compared with For complexity, break down complex when changing, affect the work efficiency of outdoor high-voltage circuit automatic control structure.

Utility model content

The purpose of this utility model is to provide outdoor high-voltage circuit automatic control structure, 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：

Outdoor high-voltage circuit automatic control structure, including single injection-molded cylinder and match somebody with somebody with cylinder upper end screw thread The cover plate of conjunction, is provided with vacuum interrupter in the cylinder, and circular fastening block is placed in the top of vacuum interrupter, and in fastening Resilient hollow round table is installed on the outer circle wall of block, the card being engaged with hollow round table is provided with the inwall of cylinder upper end Groove, the vacuum interrupter upper surface are connected with fastening block by bolt, and the cylinder lower end inner wall is provided with support block, spacing Plate is fixed in support block, is connected to the lead column and push rod of inner hollow, institute's push rod at the vacuum interrupter two ends Upwardly extend after in the middle part of fastening block, and ball, the ball and the cover plate inwall are installed in the upper end of push rod Contact, is 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 extinction The movable feeler lever contact of room, the vacuum interrupter include housing, radome, corrugated tube, coaxial stationary contact bar are provided with housing With movable feeler lever, corrugated tube is fixed on inner walls lower end and is set in movable feeler lever epimere, and the movable feeler lever hypomere goes out through vacuum Extend in the lead column behind arc chamber lower end, radome is fixed between movable feeler lever, stationary contact bar and inner walls, in stationary contact bar Lower 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 spiral with moving contact The horizontal magnetic of groove, 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.

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, touched as dynamic from the horizontal magnetic of helicla flute Head, static contact, in disjunction short circuit current, can result from the magnetic field of electrode axis perpendicular, between its electrode enough In the presence of transverse magnetic field, vacuum arc is along the surface of contact constantly high-speed motion, and then avoids seriously melting for contact surface Change, after current over-zero can convalescent period dielectric strength rapidly, while being conducive to arc extinction, greatly reduce to moving contact And the loss of static contact, reduce the replacement frequency to vacuum interrupter, and extend the service life of chopper.Also, In vacuum extinction room, corrugated tube can guarantee that fully sealing inside vacuum interrupter, again can be in vacuum extinction outdoor actuating When make moving contact and static contact do division campaign, and when electric arc is produced, moving contact and quiet when radome can adsorb arcing The metallic vapour evaporated on contact, prevents from causing dielectric strength to reduce and insulation breakdown in housing because of the pollution of metallic vapour, And be conducive to the rapid recovery of the penetrating arc gap dielectric strength of blow-out, similarly, in vacuum extinction room, radome is by corrugated tube Cover, scaling loss degree of the corrugated tube by metallic vapour can be reduced, and then increase 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, 3- elastic sheet metals, 4- lead columns, 5- limiting plates, 6- support blocks, 7- insulated tension poles, 8- are tight Gu block, 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 24,27 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.

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, 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 (3)

1. the cylinder of outdoor high-voltage circuit automatic control structure, including single injection-molded（1）And and cylinder（1）Upper end spiral shell The cover plate that stricture of vagina coordinates（9）, it is characterised in that：In the cylinder（1）Vacuum interrupter is provided with inside（2）, the fastening block of circle（8）Put In vacuum interrupter（2）Top, and in fastening block（8）Outer circle wall on resilient hollow round table is installed, in cylinder（1） The draw-in groove being engaged with hollow round table, the vacuum interrupter are provided with the inwall of upper end（2）Upper surface passes through bolt and fastening block （8）Connection, the cylinder（1）Lower end inner wall is provided with support block（6）, limiting plate（5）It is fixed on support block（6）On, described Vacuum interrupter（2）Two ends are connected to the lead column of inner hollow（4）And push rod（10）, the push rod（10）Through fastening Block（8）Upwardly extend behind middle part, and in push rod（10）Upper end ball is installed（11）, the ball（11）With the lid Plate（9）Inwall is contacted, in the limiting plate（5）Middle part is provided with through hole, the vacuum interrupter（2）Including housing（27）, in shell Body（27）Radome is provided with inside（26）, corrugated tube（25）, coaxial stationary contact bar（21）With movable feeler lever（24）, corrugated tube（25）It is fixed In housing（7）Inwall lower end and it is set in movable feeler lever（24）Epimere, the movable feeler lever（24）Hypomere runs through vacuum interrupter（2）Under In the lead column behind end（4）Interior extension, radome（26）It is fixed on movable feeler lever（24）, stationary contact bar（21）With housing（27）Inwall Between, in stationary contact bar（21）Lower end is provided with static contact（22）, in movable feeler lever（24）Upper end is provided with and static contact（22）What is coordinated is dynamic Contact（23）, and static contact（22）With moving contact（23）It is the horizontal magnetic of helicla flute, insulated tension pole（7）Upper end sequentially passes through described logical Hole and movable feeler lever（24）Connection.

2. outdoor high-voltage circuit automatic control structure according to claim 1, it is characterised in that：In the cylinder（1）'s Upper end wire outlet seat is respectively equipped with the wall of side（12）With lower end wire outlet seat（13）.

3. outdoor high-voltage circuit automatic control structure according to claim 1, it is characterised in that：In the cylinder（1）'s Inwall is provided with elastic sheet metal（3）, and the elastic sheet metal（3）End and insulated tension pole（7）Upper end connection.