CN104767144A - Opening linkage device of GFC cabinet circuit breaker handcart - Google Patents
Opening linkage device of GFC cabinet circuit breaker handcart Download PDFInfo
- Publication number
- CN104767144A CN104767144A CN201510180174.5A CN201510180174A CN104767144A CN 104767144 A CN104767144 A CN 104767144A CN 201510180174 A CN201510180174 A CN 201510180174A CN 104767144 A CN104767144 A CN 104767144A
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- China
- Prior art keywords
- circuit breaker
- connecting rod
- cabinet
- inner sleeve
- circular
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- 238000009434 installation Methods 0.000 claims description 5
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Distribution Board (AREA)
Abstract
The invention discloses an opening linkage device of a GFC cabinet circuit breaker handcart. The opening linkage device comprises a crank, a rotary sleeve, a guide ring, a connecting rod, a vertical shaft and a rotary shaft. The crank is in linkage with a circuit breaker opening bent plate, so that the circuit breaker handcart follows the mode that opening is firstly performed for outage and then a crank arm rotates to break away from a guide rail through linkage in the power outage and circuit breaker pulling-out process. Time difference exists between the outage moment and the moment when the crank arm begins to move, accordingly the circuit breaker can move after being completely opened, and the risk caused by mistaken circuit breaker pulling in an electrified state is prevented. The opening linkage device adopts mechanical linkage, is simple in operation, is not limited by a secondary loop and is simple in manufacture, easy to operate and high in safety performance, and an original handcart structure is not changed. After the circuit breaker is opened, a cabinet body can be cranked inwards or outwards, and the safety during maintenance and overhauling is ensured.
Description
Technical field
The present invention relates to a kind of interlock of circuit breaker.
Background technology
When circuit breaker cart carries out repair and maintenance in GFC switch cubicle, circuit breaker pulls out the danger of switch cubicle under there is combined floodgate electriferous state, in order to prevent charged misoperation, circuit breaker cart is installed separating brake interlock, circuit breaker cart is interlocked by crank and breaker open operation bent plate, with the safety of support personnel and equipment.
Former GFC switch cabinet handcart is old-fashioned electromagnetic mechanism oil-minimum breaker, the existing oil-minimum breaker of development along with primary cut-out slowly replace by vacuum circuit-breaker, because the little interlocking of vacuum circuit-breaker volume generally adopts electrical interlock, electrical interlock is confined to secondary circuit power supply, when secondary side has a power failure, interlocking cannot realize becoming, in addition installing space is subject to certain restrictions, and assembles very inconvenient, therefore chain fail safe, reliability are not high.
Summary of the invention
Object of the present invention is just to provide a kind of safe and reliable, GFC board breaker handcart separating brake interlock easy for installation, and its technical scheme taked is:
Rotating shaft transverse horizontal is arranged, its two ends, left and right are each passed through the left and right sidewall of frame, and be fixed with the connecting lever erect and arrange respectively, guide collar is the semicircle platy structure that circular arc is given prominence to forward, guide collar along the circumferential direction has gathering sill, the mid portion of gathering sill is rectangular hole shape, top and the bottom are circle hole shape, and the groove width of top and the bottom is greater than the groove width of mid portion, the upper and lower side of guide collar is fixed in frame, rotating shaft is through the circular arc space of guide collar, pivoted housing is the inverse-T-shaped structure be made up of horizontal cylinder and vertical cylinder, the bottom surface and the end face that are positioned at the horizontal cylinder bottom pivoted housing are plane, its front and back sides is arc surface, the right-hand member antetheca of horizontal cylinder has rectangular indentation, rotating shaft is through horizontal cylinder, the front side wall of rotating shaft is fixed with alignment pin, alignment pin is positioned at breach, the vertical cylinder being positioned at pivoted housing top is provided with inner sleeve, inside put cover and have spring, the circular nosing being positioned at inner sleeve top may be stuck on the madial wall of vertical cylinder, Spring Card to be connected in circular nosing and vertical cylinder between diapire, the top of inner sleeve can be embedded in gathering sill, crank lower end athwart gathering sill grafting puts in being fixed on, the installation bent plate rolled over before frame being fixed with right flank, the front end of connecting rod is hinged on installs on bent plate, the separating brake bent plate that cabinet internal fixtion is rolled over before having end face, the lower end of vertical pivot is located at above separating brake bent plate, its upper end is hinged through the rear end of cabinet end face and connecting rod, the upper portion side wall of connecting rod is fixed with shotpin, on connecting rod, cover has back-moving spring, back-moving spring is connected between shotpin and cabinet end face, when circuit breaker is in "on" position, spring and back-moving spring are in stretched condition, and the circular nosing of inner sleeve is stuck in the circular hole of gathering sill top, and the planar base surface of the horizontal cylinder of pivoted housing is attached on the roof of connecting rod, alignment pin is positioned on the diapire of breach, and the lower end of connecting lever is stuck on cabinet guide rail, when circuit breaker is at gate-dividing state, spring is in stretched condition, the circular nosing of inner sleeve is stuck in the circular hole of gathering sill bottom, the roof of the arc leading flank top pressure connecting rod of the horizontal cylinder of pivoted housing, the rear end of connecting rod has a down dip, and back-moving spring is in compressive state, and the lower end of vertical pivot moves down the end face of top pressure separating brake bent plate, alignment pin is positioned on the roof of breach, and the lower end of connecting lever and cabinet guide rail depart from.
The present invention is interlocked by crank and breaker open operation bent plate, and when the action of circuit breaker crank, circuit breaker directly trips, and also can shake out circuit breaker, thus prevent hot line job, ensure that use safety when emergency case secondary side has a power failure.In power failure pull-out circuit breaker process, this interlocking makes circuit breaker cart follow first separating brake power-off, then connecting lever rotates getaway, between power-off and connecting lever setting in motion, life period is poor, thus circuit breaker could move after ensureing the complete separating brake of circuit breaker, pull out circuit breaker under preventing electriferous state by mistake and cause danger.The present invention is mechanical interlocking, simple to operate, does not limit by secondary circuit, does not change former handcart structure, and make simple, easy to operate, security performance is high; Just shaking into shaking out cabinet after breaker open operation, ensure that the fail safe of Maintenance and Repair.
Accompanying drawing explanation
Fig. 1 is the structural representation when circuit breaker is in "on" position;
Fig. 2 is the right view of Fig. 1;
Fig. 3 when circuit breaker is at gate-dividing state right view;
Fig. 4 is the schematic diagram of pivoted housing and shaft portion when circuit breaker is in "on" position;
Fig. 5 is the right view of Fig. 4;
Fig. 6 is the schematic diagram of pivoted housing and shaft portion when circuit breaker is at gate-dividing state;
Fig. 7 is the right view of Fig. 6;
Fig. 8 is the cutaway view of crank and pivoted housing part.
Embodiment
below in conjunction with accompanying drawing, the present invention is further described.
As Figure 1-3, rotating shaft 15 transverse horizontal is arranged, its two ends, left and right are each passed through the left and right sidewall of frame 16, and being fixed with the connecting lever 11 erect and arrange respectively, the semicircle platy structure that guide collar 3 is given prominence to forward for circular arc, guide collar 3 along the circumferential direction has gathering sill 17, the mid portion of gathering sill 17 is rectangular hole shape, top and the bottom are circle hole shape, and the groove width of top and the bottom is greater than the groove width of mid portion, and the upper and lower side of guide collar 3 is fixed in frame 16.The installation bent plate 9 rolled over before frame 16 being fixed with right flank, the front end of connecting rod 4 is hinged on by pivot pin 10 installs on bent plate 9, the separating brake bent plate 8 that cabinet 19 internal fixtion is rolled over before having end face, the lower end of vertical pivot 7 is located at above separating brake bent plate 8, its upper end is hinged through the rear end of cabinet 19 end face and connecting rod 4, the upper portion side wall of connecting rod 4 is fixed with shotpin 5, on connecting rod 4, cover has back-moving spring 6, back-moving spring 6 is connected between shotpin 5 and cabinet 19 end face, can according to the decrement of shotpin 5 installation site adjustment movement stroke and back-moving spring 6.
As Figure 4-8, rotating shaft 15 is through the circular arc space of guide collar 3, pivoted housing 2 is the inverse-T-shaped structure be made up of horizontal cylinder and vertical cylinder, the bottom surface and the end face that are positioned at the horizontal cylinder bottom pivoted housing 2 are plane, its front and back sides is arc surface, the right-hand member antetheca of horizontal cylinder has rectangular indentation 18, rotating shaft 15 is through horizontal cylinder, the front side wall of rotating shaft 15 is fixed with alignment pin 12, alignment pin 12 is positioned at breach 18, the vertical cylinder being positioned at pivoted housing 2 top is provided with inner sleeve 13, in inner sleeve 13, cover has spring 14, the circular nosing being positioned at inner sleeve 13 top may be stuck on the madial wall of vertical cylinder, spring 14 to be connected in circular nosing and vertical cylinder between diapire, the top of inner sleeve 13 can be embedded in gathering sill 17, crank 1 lower end athwart gathering sill 17 grafting is fixed in inner sleeve 13.
When circuit breaker is in "on" position, spring 14 and back-moving spring 6 are in stretched condition, the circular nosing of inner sleeve 13 is stuck in the circular hole of gathering sill 17 top, prevent 15 motions around the shaft voluntarily under self gravitation of crank 1 and pivoted housing 2, the planar base surface of the horizontal cylinder of pivoted housing 2 is attached on the roof of connecting rod 4, alignment pin 12 is positioned on the diapire of breach 18, and the lower end of connecting lever 11 is stuck on cabinet guide rail.When needs are from cabinet pull-out circuit breaker, press under crank 1 is axial along pivoted housing 2, pressing spring 14 under the circular nosing of now inner sleeve 13, inner sleeve 13 throws off guide collar 3 top circular hole, then crank 1 need rotate counterclockwise from top to bottom along gathering sill 17, when this process starts, pivoted housing 2 first follows crank 1 to rotate one section of idle stroke, now connecting lever 11 keeps original state motionless (circuit breaker maintenance service position is motionless), become arc leading flank contact with connecting rod 4 when the horizontal cylinder of pivoted housing 2 to be contacted with connecting rod 4 from original planar base surface, and the roof of top pressure connecting rod 4, connecting rod 4 is made to do clockwise circular motion around pivot pin 10, the rear end of connecting rod 4 is had a down dip, thus drive vertical pivot 7 vertical downward movement top voltage breaker separating brake bent plate 8, make breaker open operation power-off, now back-moving spring 6 is in compressive state.Then along with crank 1 is drop-down, after the roof of the breach 18 of pivoted housing 2 to contact with the alignment pin 12 in rotating shaft 15 and pushes up and press, rotating shaft 15 starts synchronously to be rotated counterclockwise with pivoted housing 2, thus drives connecting lever 11 to deviate from cabinet guide rail, thus pulls out handcart safely.When crank 1 is pulled down to the bottom of gathering sill 17, decontrols crank 1, under the elastic force of spring 14, inner sleeve 13 is moved, its circular nosing is stuck in the circular hole of gathering sill 17 bottom, is now in circuit breaker at gate-dividing state.
When circuit breaker will close a floodgate, press under crank 1 is axial along pivoted housing 2, pressing spring 14 under the circular nosing of now inner sleeve 13, inner sleeve 13 throws off guide collar 3 bottom circular hole, then crank 1 need along gathering sill 17 from top to bottom clockwise pivoted housing 2 follow crank 1 rotary motion, gradually become planar base surface contact with connecting rod 4 when the horizontal cylinder of pivoted housing 2 to be contacted with connecting rod 4 by arc leading flank, counterclockwise circular motion is done around pivot pin 10 under lever principle, and then under the elastic force of back-moving spring 6, drive vertical pivot 7 upward vertical movement, breaker open operation bent plate 8 resets under breaker spring, handcart can be electronic, closing by hand, thus ensure that circuit breaker could safety closing after arriving assigned address.Now advance during circuit breaker and do not mate cannot enter cabinet with cabinet guide rail due to connecting lever 11, push cabinet under preventing "on" position and cause danger.Along with crank 1 continues pull-up, after the diapire of the breach 18 of pivoted housing 2 to contact with the alignment pin 12 in rotating shaft 15 and pushes up and press, rotating shaft 15 starts synchronously to turn clockwise with pivoted housing 2, thus drive connecting lever 11 blocks cabinet guide rail, thus makes handcart enter cabinet safely.
Claims (1)
1. a GFC board breaker handcart separating brake interlock, comprise crank (1), pivoted housing (2), guide collar (3), connecting rod (4), vertical pivot (7) and rotating shaft (15), it is characterized in that: rotating shaft (15) transverse horizontal is arranged, its two ends, left and right are each passed through the left and right sidewall of frame (16), and be fixed with the connecting lever (11) erect and arrange respectively, the semicircle platy structure that guide collar (3) is given prominence to forward for circular arc, guide collar (3) along the circumferential direction has gathering sill (17), the mid portion of gathering sill (17) is rectangular hole shape, top and the bottom are circle hole shape, and the groove width of top and the bottom is greater than the groove width of mid portion, the upper and lower side of guide collar (3) is fixed in frame (16), rotating shaft (15) is through the circular arc space of guide collar (3), pivoted housing (2) is the inverse-T-shaped structure be made up of horizontal cylinder and vertical cylinder, the bottom surface and the end face that are positioned at the horizontal cylinder of pivoted housing (2) bottom are plane, its front and back sides is arc surface, the right-hand member antetheca of horizontal cylinder has rectangular indentation (18), rotating shaft (15) is through horizontal cylinder, the front side wall of rotating shaft (15) is fixed with alignment pin (12), alignment pin (12) is positioned at breach (18), the vertical cylinder being positioned at pivoted housing (2) top is provided with inner sleeve (13), the upper cover of inner sleeve (13) has spring (14), the circular nosing being positioned at inner sleeve (13) top may be stuck on the madial wall of vertical cylinder, spring (14) to be connected in circular nosing and vertical cylinder between diapire, the top of inner sleeve (13) can be embedded in gathering sill (17), crank (1) lower end athwart gathering sill (17) grafting is fixed in inner sleeve (13), the installation bent plate (9) rolled over before frame (16) being fixed with right flank, the front end of connecting rod (4) is hinged on by pivot pin (10) installs on bent plate (9), the separating brake bent plate (8) that cabinet (19) internal fixtion is rolled over before having end face, the lower end of vertical pivot (7) is located at separating brake bent plate (8) top, its upper end is hinged through the rear end of cabinet (19) end face and connecting rod (4), the upper portion side wall of connecting rod (4) is fixed with shotpin (5), the upper cover of connecting rod (4) has back-moving spring (6), back-moving spring (6) is connected between shotpin (5) and cabinet (19) end face, when circuit breaker is in "on" position, spring (14) and back-moving spring (6) are in stretched condition, the circular nosing of inner sleeve (13) is stuck in the circular hole of gathering sill (17) top, the planar base surface of the horizontal cylinder of pivoted housing (2) is attached on the roof of connecting rod (4), alignment pin (12) is positioned on the diapire of breach (18), and the lower end of connecting lever (11) is stuck on cabinet guide rail, when circuit breaker is at gate-dividing state, spring (14) is in stretched condition, the circular nosing of inner sleeve (13) is stuck in the circular hole of gathering sill (17) bottom, the roof on arc leading flank top pressure connecting rod (4) of the horizontal cylinder of pivoted housing (2), the rear end of connecting rod (4) has a down dip, back-moving spring (6) is in compressive state, the lower end of vertical pivot (7) moves down the end face on top pressure separating brake bent plate (8), alignment pin (12) is positioned on the roof of breach (18), and the lower end of connecting lever (11) and cabinet guide rail depart from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180174.5A CN104767144B (en) | 2015-04-16 | 2015-04-16 | GFC board breaker handcart separating brake interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180174.5A CN104767144B (en) | 2015-04-16 | 2015-04-16 | GFC board breaker handcart separating brake interlock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104767144A true CN104767144A (en) | 2015-07-08 |
| CN104767144B CN104767144B (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510180174.5A Active CN104767144B (en) | 2015-04-16 | 2015-04-16 | GFC board breaker handcart separating brake interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104767144B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244920A (en) * | 2018-09-30 | 2019-01-18 | 山东泰开真空开关有限公司 | A kind of switchgear vacuum circuit-breaker handcart mechanical interlocks |
| CN113284749A (en) * | 2021-05-19 | 2021-08-20 | 广东电网有限责任公司 | Device for replacing brake separating buffer |
| CN118969572A (en) * | 2024-10-14 | 2024-11-15 | 西电宝鸡电气有限公司 | A phase-controlled circuit breaker and its emergency tripping device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002369321A (en) * | 2001-06-11 | 2002-12-20 | Yaskawa Electric Corp | Lock of draw out type electric apparatus unit |
| JP2008220070A (en) * | 2007-03-06 | 2008-09-18 | Fuji Electric Systems Co Ltd | Closed switchboard |
| JP2009011070A (en) * | 2007-06-27 | 2009-01-15 | Fuji Electric Systems Co Ltd | Interlock device |
| CN202737369U (en) * | 2012-05-22 | 2013-02-13 | 荣成市供电公司 | Breaker handcart interlocking device |
| CN103337802A (en) * | 2013-07-19 | 2013-10-02 | 国家电网公司 | Interlocking device arranged in switch cabinet and used for preventing trolley from being pushed in mistakenly after switching-on of earthing switch |
| CN203351524U (en) * | 2013-07-05 | 2013-12-18 | 河南森源电气股份有限公司 | Breaker emergency opening device |
| CN204497645U (en) * | 2015-04-16 | 2015-07-22 | 山东泰开真空开关有限公司 | GFC board breaker handcart separating brake interlock |
-
2015
- 2015-04-16 CN CN201510180174.5A patent/CN104767144B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002369321A (en) * | 2001-06-11 | 2002-12-20 | Yaskawa Electric Corp | Lock of draw out type electric apparatus unit |
| JP2008220070A (en) * | 2007-03-06 | 2008-09-18 | Fuji Electric Systems Co Ltd | Closed switchboard |
| JP2009011070A (en) * | 2007-06-27 | 2009-01-15 | Fuji Electric Systems Co Ltd | Interlock device |
| CN202737369U (en) * | 2012-05-22 | 2013-02-13 | 荣成市供电公司 | Breaker handcart interlocking device |
| CN203351524U (en) * | 2013-07-05 | 2013-12-18 | 河南森源电气股份有限公司 | Breaker emergency opening device |
| CN103337802A (en) * | 2013-07-19 | 2013-10-02 | 国家电网公司 | Interlocking device arranged in switch cabinet and used for preventing trolley from being pushed in mistakenly after switching-on of earthing switch |
| CN204497645U (en) * | 2015-04-16 | 2015-07-22 | 山东泰开真空开关有限公司 | GFC board breaker handcart separating brake interlock |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244920A (en) * | 2018-09-30 | 2019-01-18 | 山东泰开真空开关有限公司 | A kind of switchgear vacuum circuit-breaker handcart mechanical interlocks |
| CN109244920B (en) * | 2018-09-30 | 2024-03-15 | 山东泰开真空开关有限公司 | Mechanical interlocking device for switch cabinet vacuum circuit breaker handcart |
| CN113284749A (en) * | 2021-05-19 | 2021-08-20 | 广东电网有限责任公司 | Device for replacing brake separating buffer |
| CN113284749B (en) * | 2021-05-19 | 2022-11-29 | 广东电网有限责任公司 | Device for replacing brake separating buffer |
| CN118969572A (en) * | 2024-10-14 | 2024-11-15 | 西电宝鸡电气有限公司 | A phase-controlled circuit breaker and its emergency tripping device |
| CN118969572B (en) * | 2024-10-14 | 2025-02-14 | 西电宝鸡电气有限公司 | Phase control circuit breaker and emergency brake separating device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104767144B (en) | 2016-11-30 |
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| SE01 | Entry into force of request for substantive examination | ||
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Address after: 271000 Longtan South Road, high tech Zone, Tai'an City, Shandong Province Patentee after: SHANDONG TAIKAI VACUUM SWITCH Co.,Ltd. Address before: 271000 No. 5 Chuangye street, East District, high tech Zone, Tai'an City, Shandong Province Patentee before: SHANDONG TAIKAI VACUUM SWITCH Co.,Ltd. |