CN103227064B - Medium Voltage Switchgear earthed switch and circuit breaker interlocking device - Google Patents
Medium Voltage Switchgear earthed switch and circuit breaker interlocking device Download PDFInfo
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- CN103227064B CN103227064B CN201310141225.4A CN201310141225A CN103227064B CN 103227064 B CN103227064 B CN 103227064B CN 201310141225 A CN201310141225 A CN 201310141225A CN 103227064 B CN103227064 B CN 103227064B
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Abstract
The invention discloses a kind of Medium Voltage Switchgear earthed switch and circuit breaker interlocking device.It comprises the platform be arranged on below breaker assembly, platform is provided with a rectangular notch, the inner side of platform is provided with one piece of interlocking arm-tie, and be provided with an interlocking bolt in the L shape notch of interlocking arm-tie, interlocking bolt is connected with the interlocking latch below breaker assembly; The side of interlocking arm-tie is provided with a grounding switch main shaft, grounding switch main shaft is provided with an earthed switch interlocking connecting lever, earthed switch interlocking connecting lever is provided with a spacing edge-cut; Also comprise a platform interlocking connection, one end of platform interlocking connection is stuck in the draw-in groove of interlocking arm-tie, and the other end is pressed on earthed switch interlocking connecting lever or is positioned at spacing edge-cut; The oblique offside of the draw-in groove on interlocking arm-tie is provided with a spring, and the other end of spring is connected on the sidewall of platform.After adopting above-mentioned structure, it is simple to operation, reliability is high, and can ensure the personal safety of maintainer.
Description
Technical field
The present invention relates to a kind of in be pressed into interlocking device as earthed switch and circuit breaker in complete equipment, specifically a kind of Medium Voltage Switchgear earthed switch and circuit breaker interlocking device.
Background technology
Interlocking in complete equipment between circuit breaker and framework is pressed into mainly on platform in traditional, but there will be the situation (namely violence operation damages interlocking) of misoperation, under the state that earthed switch closes a floodgate, words circuit breaker being pushed into by mistake service position can cause serious accident, therefore one is needed can to ensure thoroughly after earthed switch closes a floodgate, circuit breaker just cannot shake to service position from test position, thus ensures the interlocking device of the personal safety of maintainer.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple to operation, Medium Voltage Switchgear earthed switch that can ensure the personal safety of maintainer that reliability is high and circuit breaker interlocking device.
In order to solve the problems of the technologies described above, Medium Voltage Switchgear earthed switch of the present invention and circuit breaker interlocking device, comprise the platform be arranged on below breaker assembly, platform is provided with a rectangular notch, the inner side of platform is provided with one piece of interlocking arm-tie with L shape notch that can move horizontally along mesa sidewalls, being provided with one in the L shape notch of interlocking arm-tie can along the interlocking bolt of the track movement of L shape notch, and interlocking bolt is connected with the interlocking latch below breaker assembly; The side of described interlocking arm-tie is provided with a grounding switch main shaft, grounding switch main shaft is provided with an earthed switch interlocking connecting lever, earthed switch interlocking connecting lever is provided with a spacing edge-cut; Also comprise one to be used for the transmission of power of grounding switch main shaft to the platform interlocking connection of interlocking arm-tie, one end of platform interlocking connection is stuck in the draw-in groove of interlocking arm-tie, and the other end of platform interlocking connection is optionally pressed on earthed switch interlocking connecting lever or is positioned at spacing edge-cut; The oblique offside of the draw-in groove on interlocking arm-tie is provided with a spring, and the other end of spring is connected on the sidewall of platform, and when platform interlocking connection is positioned at spacing edge-cut, the rectangular notch that platform is arranged coincides with the elongated slot in the L shape notch of interlocking arm-tie.
After adopting above-mentioned structure, due to the interlocking arm-tie with L shape notch arranged, the interlocking bolt be connected with interlocking latch is provided with in the L shape notch of interlocking arm-tie, interlocking arm-tie is by a platform interlocking connection and grounding switch main shaft transferring power, arrange when earthed switch is in gate-dividing state thus, circuit breaker just can shake to service position from test position, cannot operational grounding switch, only have when circuit breaker is retracted into test position by service position, can operational grounding switch, and after earthed switch closes a floodgate, circuit breaker just cannot shake to service position from test position, it is simple to operation, reliability is high, and the personal safety of maintainer can be ensured.
Accompanying drawing explanation
Fig. 1 is the perspective view of earthed switch of the present invention when being in gate-dividing state;
Fig. 2 is the planar structure schematic diagram of earthed switch of the present invention when being in gate-dividing state;
Fig. 3 is the perspective view of earthed switch of the present invention when being in "on" position;
Fig. 4 is the planar structure schematic diagram of earthed switch of the present invention when being in "on" position.
Embodiment
Below in conjunction with the drawings and specific embodiments, Medium Voltage Switchgear earthed switch of the present invention and circuit breaker interlocking device are described in further detail.
As shown in the figure, Medium Voltage Switchgear earthed switch of the present invention and circuit breaker interlocking device, comprise the platform 1 be arranged on below breaker assembly, platform 1 is provided with a rectangular notch, the inner side of platform 1 is provided with one piece of interlocking arm-tie 2 with L shape notch that can move horizontally along mesa sidewalls, being provided with one in the L shape notch of interlocking arm-tie 2 can along the interlocking bolt 3 of the track movement of L shape notch, and interlocking bolt 3 is connected with the interlocking latch below breaker assembly; The side of described interlocking arm-tie 2 is provided with a grounding switch main shaft 4, grounding switch main shaft 4 is provided with an earthed switch interlocking connecting lever 5, earthed switch interlocking connecting lever 5 is provided with a spacing edge-cut 8; Also comprise one to be used for the transmission of power of grounding switch main shaft 4 to the platform interlocking connection 6 of interlocking arm-tie 2, one end of platform interlocking connection 6 is stuck in the draw-in groove of interlocking arm-tie 2, and the other end of platform interlocking connection 6 is pressed on earthed switch interlocking connecting lever 5 according to the difference of grounding switch main shaft 4 state or is positioned at spacing edge-cut 8; The oblique offside of the draw-in groove on interlocking arm-tie 2 is provided with a spring 7, the other end of spring 7 is connected on the sidewall of platform 1, when platform interlocking connection 6 is positioned at spacing edge-cut 8, the rectangular notch that platform 1 is arranged coincides with the elongated slot in the L shape notch of interlocking arm-tie 2.
Its operation principle is as follows:
When earthed switch closes a floodgate, earthed switch interlocking connecting lever 5 rotates along with grounding switch main shaft 4, be with moving platform interlocking connection 6 to turn over equal angular simultaneously, because platform interlocking connection 6 is stuck in the draw-in groove of interlocking arm-tie 2, platform interlocking connection 6 drives interlocking bolt 3 to move to the left by spring 7, now, interlocking bolt 3 drops in the L shape notch of interlocking arm-tie 2, and interlocking bolt 3 forms interlocking by driving inside platform into the interlocking latch below leading screw and breaker assembly, because interlocking bolt 3 is stuck in the L shape notch of interlocking arm-tie 2, cannot move forward, like this, just can ensure that circuit breaker is when test position, cannot shake to service position by test position,
When earthed switch transfers separating brake to by combined floodgate, earthed switch interlocking connecting lever 5 rotates with grounding switch main shaft, now platform interlocking connection 6 is owing to losing the supporting role of earthed switch interlocking connecting lever 5, under the effect of spring 7, move to the right (reset), in the spacing edge-cut 8 fallen on tieback ground switch interlock connecting lever 5, the rectangular notch that elongated slot in the L shape notch of interlocking arm-tie 2 and platform 1 are arranged overlaps, now, interlocking bolt 3 just can move forward along with the interlocking latch below breaker assembly, such circuit breaker just can move to service position from test position, simultaneously earthed switch deciliter indicator board turns over equal angular together along with platform interlocking connection 6, circuit breaker still in test position time, earthed switch deciliter indicator board can drive interlocking bolt 3 to move left and right by platform interlocking connection 6, when circuit breaker shakes to service position from test position, interlocking bolt 3 can only be movable and can not move left and right in the short groove in the L shape notch of interlocking arm-tie 2, now earthed switch deciliter indicator board just cannot be opened, also just cannot operational grounding switch.
Can be found out by above-mentioned operation principle, when earthed switch is in gate-dividing state, circuit breaker just can shake to service position from test position, now earthed switch position indicator board is also locked, cannot operational grounding switch, only have when circuit breaker is retracted into test position by service position, earthed switch just position instruction sheet material can rotate, now can operational grounding switch, and after earthed switch closes a floodgate, circuit breaker just cannot shake to service position from test position, so just can ensure the safety of maintainer.
Claims (1)
1. a Medium Voltage Switchgear earthed switch and circuit breaker interlocking device, it is characterized in that: comprise the platform (1) be arranged on below breaker assembly, platform (1) is provided with a rectangular notch, the inner side of platform (1) is provided with one piece can along the interlocking arm-tie (2) with L shape notch of the sidewall horizontal movement of platform (1), being provided with one in the L shape notch of interlocking arm-tie (2) can along the interlocking bolt (3) of the track movement of L shape notch, and interlocking bolt (3) is connected with the interlocking latch below breaker assembly; The side of described interlocking arm-tie (2) is provided with a grounding switch main shaft (4), grounding switch main shaft (4) is provided with earthed switch interlocking connecting lever (5), earthed switch interlocking connecting lever (5) is provided with a spacing edge-cut (8); Also comprise one to be used for the transmission of power of grounding switch main shaft (4) to the platform interlocking connection (6) of interlocking arm-tie (2), one end of platform interlocking connection (6) is stuck in the draw-in groove of interlocking arm-tie (2), and the other end of platform interlocking connection (6) is optionally positioned at spacing edge-cut (8); The oblique offside of the draw-in groove on described interlocking arm-tie (2) is connected to one end of spring (7), the other end of spring (7) is connected on the sidewall of platform (1), when platform interlocking connection (6) is positioned at spacing edge-cut (8), the upper rectangular notch arranged of platform (1) coincides with the elongated slot in the L shape notch of interlocking arm-tie (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141225.4A CN103227064B (en) | 2013-04-23 | 2013-04-23 | Medium Voltage Switchgear earthed switch and circuit breaker interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141225.4A CN103227064B (en) | 2013-04-23 | 2013-04-23 | Medium Voltage Switchgear earthed switch and circuit breaker interlocking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103227064A CN103227064A (en) | 2013-07-31 |
| CN103227064B true CN103227064B (en) | 2015-08-19 |
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| CN201310141225.4A Active CN103227064B (en) | 2013-04-23 | 2013-04-23 | Medium Voltage Switchgear earthed switch and circuit breaker interlocking device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337802B (en) * | 2013-07-19 | 2015-11-18 | 国家电网公司 | The interlock that after preventing ground cutter from closing a floodgate in switch cubicle, handcart pushes by mistake |
| CN106098435B (en) * | 2016-08-08 | 2018-07-17 | 镇江大全伊顿电器有限公司 | Breaker misoperation-preventing closing interlocking mechanism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6339405A (en) * | 1986-07-30 | 1988-02-19 | 株式会社戸上電機製作所 | Enclosed switchboard |
| KR101036989B1 (en) * | 2009-12-23 | 2011-05-26 | 엘에스산전 주식회사 | Interlock apparatus of ground switch for vacuum circuit breaker |
| CN102646526B (en) * | 2012-05-11 | 2015-07-08 | 芜湖明远电力设备制造有限公司 | Vacuum circuit breaker and grounding switch interlocking mechanism |
| CN203218131U (en) * | 2013-04-23 | 2013-09-25 | 镇江大全伊顿电器有限公司 | Earthing switch and circuit breaker interlocking mechanism for intermediate-voltage cabinet |
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2013
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| CN103227064A (en) | 2013-07-31 |
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Address after: 212200 south side of Pearl Square, Yangzhong Development Zone, Zhenjiang City, Jiangsu Province Patentee after: Zhenjiang Daquan Intelligent Electric Co.,Ltd. Address before: 212200 south side of Pearl Square, Yangzhong Development Zone, Zhenjiang City, Jiangsu Province Patentee before: ZHENJIANG DAQO EATON ELECTRICAL Co.,Ltd. |