CN102842446A - Interlocking device of three circuit breakers - Google Patents
Interlocking device of three circuit breakers Download PDFInfo
- Publication number
- CN102842446A CN102842446A CN2012102993965A CN201210299396A CN102842446A CN 102842446 A CN102842446 A CN 102842446A CN 2012102993965 A CN2012102993965 A CN 2012102993965A CN 201210299396 A CN201210299396 A CN 201210299396A CN 102842446 A CN102842446 A CN 102842446A
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- plate
- driving member
- interlocking device
- stay cord
- follower plate
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Abstract
The invention relates to an interlocking device of three circuit breakers, and the interlocking device comprises a first interlocking mechanism, a second interlocking mechanism and a third interlocking mechanism, wherein each interlocking mechanism comprises an interlocking plate, a driving shaft and a driven shaft, which are installed on the interlocking plate, the driving shaft is linked with a driving plate, the driven shaft is linked with a driven plate, the driving plate is provided with a first pull rope and a second pull rope respectively corresponding two ends of the driving shaft, and the interlocking device is characterized in that the driven plate of each interlocking mechanism is provided with a first return element for driving the driven plate to rotate in the clockwise direction, each driven plate is hinged with a transmission member, the transmission member is provided with a second return element for driving the transmission member to rotate in the clockwise direction, and a connection structure is arranged between the drive plate and the transmission member and capable of making the transmission member drive the driven plate to rotate in the counterclockwise direction but making the driven plate be unable to drive the transmission member to rotate in the counterclockwise direction. Due to adopting the interlocking device, switching-on of two circuits of switches can be realized, and the interlocking device can be applied to an electric power system with two circuits of power supplies for alternate use and is simple in structure and reliable to use.
Description
Technical field
The present invention relates to a kind of interlock of circuit breaker, particularly a kind of two-way power supply power supply centre that is used for is the mechanical interlocks between three circuit breakers of the low-voltage distribution system of bus.
Background technology
At present the common circuit breaker interlock is mechanical interlocking and the mechanical interlocking of realizing between two circuit breakers of two-way power supply between three circuit breakers of three-way power; Its requirement is two circuit breaker interlockings; Can only close wherein one, all the other circuit breaker lockings can not be closed a floodgate; Three circuit breaker interlockings also can only close wherein one, and all the other two circuit breaker lockings can not be closed a floodgate.But what in the low-voltage distribution system of some outbalances, adopt is to be the low-voltage distribution of bus in the middle of the power supply of two-way power supply; Mechanical interlocking between three circuit breakers requires; One or two circuit breakers can close arbitrarily; Behind two circuit breakers that close, the 3rd circuit breaker locking can not be closed a floodgate.Such supply power mode is more flexible, and reliable, extensively adopts in low-voltage distribution system, and this patent can provide a kind of so simple and reliable mechanical interlocks.
Summary of the invention
In order to overcome disadvantages of background technology,, the present invention can be used for the interlock between three circuit breakers in the subsequent use each other electric power system of two-way power supply thereby providing a kind of simple in structure, service-strong can realize that two-way switch closes a floodgate.
Technical scheme of the present invention is: the interlock between a kind of three circuit breakers; Comprise first, second and third interlocking device; Every interlocking device includes interlock plate, is installed in driving shaft and driven shaft on the interlock plate; Active plate has been connected on the driving shaft; Follower plate has been connected on the driven shaft; Active plate is connected with first stay cord and second stay cord respectively with respect to the two ends of driving shaft, it is characterized in that: the follower plate of described each interlocking device is provided with and orders about first return unit of follower plate to the trend of turning clockwise, and on each follower plate, is hinged with driving member; Driving member is provided with and orders about second return unit of driving member to the trend of turning clockwise; Be provided with between follower plate and the driving member can make from being provided with between follower plate and the driving member and can make driving member drive that follower plate is rotated counterclockwise and follower plate can not drive the syndeton that driving member is rotated counterclockwise, first stay cord on the active plate of described first interlocking device connects the driving member of second interlocking device, and second stay cord on the active plate of first interlocking device connects the follower plate of tri-interlocking device; First stay cord on the active plate of described second interlocking device connects the driving member of tri-interlocking device; Second stay cord on the active plate of second interlocking device connects the follower plate of first interlocking device, and first stay cord on the active plate of described tri-interlocking device connects the driving member of first interlocking device, and second stay cord on the active plate of tri-interlocking device connects the follower plate of second interlocking device.
Described driving member is provided with the stay cord guide, the stay cord that connects follower plate earlier through and this stay cord guide of side of being close to this stay cord guide connect again to follower plate and constitute described syndeton.
Described stay cord guide is first directive wheel.
Also be provided with second directive wheel on the described driving member, stay cord even is pulled on the driving member through this second directive wheel.
It is the arc guide barrel in the center of circle that described driving member is provided with the jointed shaft that is hinged with driving member and follower plate, and this described first, second directive wheel is installed in the arc guide barrel through trip bolt respectively.
Jointed shaft and the coaxial setting of driven shaft that driving member and follower plate are hinged.
Described first return unit is first extension spring, and the one of which end is connected on the interlock plate, and the other end is connected on the follower plate; Described second return unit is second extension spring, and the one of which end is connected on the interlock plate, and the other end is connected on the driving member.
The rotation of the active plate of first interlocking device of the present invention is during promptly with first breaker closing that this interlocking device is connected; Active plate drives the rotation of second driving member on the one hand, drives the rotation of the 3rd follower plate simultaneously again, and the rotation of second driving member then drives the rotation of second follower plate simultaneously; But the angle of follower plate rotation also deficiency so that the driven shaft rotation put in place to the dropout position; Therefore second release also can not threaded off, and not enough so that the 3rd driven shaft rotates to the dropout position during rotation of the 3rd follower plate yet, in addition because the relation of syndeton; The 3rd follower plate can not drive the rotation of the 3rd driving member; Therefore the stay cord that passes the part adjunction with second active plate and the 3rd of second interlocking device still is in and collapses tight state, thus can not influence action next time, at this state; The one of which circuit breaker that the one of which active plate of the second or the 3rd interlock plate can also rotate also in i.e. the second or the 3rd circuit breaker can also close a floodgate; Its second or the active plate of tri-interlocking device when rotating to closing position, the follower plate that promptly can drive the 3rd or second interlocking device rotates to the dropout position, another active plate just can not close a floodgate again like this; Remaining a circuit breaker can not close a floodgate again, thereby realizes that the two-way switch combined floodgate promptly can be used for the subsequent use each other occasion of two-way power supply.The present invention is simple in structure, easy to assembly.
Description of drawings
Sketch map when Fig. 1 is in open position for the three-way power of the embodiment of the invention.
Fig. 2 is the sketch map when wherein one road power supply is handled combined floodgate in the embodiment of the invention.
Fig. 3 is that two road power supplys are handled the sketch map when closing a floodgate in the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Like Fig. 1,2, shown in 3; The embodiment of the interlock between a kind of three circuit breakers of the present invention; Comprise first, second and third interlocking device 100,200,300; Each interlocking device respectively connects a withdrawable circuit breaker; Every interlocking device includes interlock plate 1, is installed in driving shaft 3 and driven shaft 8 on the interlock plate 1; Active plate 2 has been connected on the driving shaft 3; Follower plate 4 has been connected on the driven shaft 8; Active plate 2 is connected with first stay cord 400 and second stay cord 600 respectively with respect to the two ends of driving shaft 3, and the follower plate 4 of described each interlocking device is provided with and orders about first return unit 11 of follower plate 4 to the trend of turning clockwise, and on each follower plate, is hinged with driving member 5; Driving member 5 is provided with and orders about second return unit 7 of driving member 5 to the trend of turning clockwise; Be provided with between follower plate 4 and the driving member 5 can make from being provided with between follower plate 4 and the driving member 5 and can make driving member 5 drive that follower plates 4 are rotated counterclockwise and follower plate 4 can not drive the syndeton that driving member 5 is rotated counterclockwise, first stay cord 600 on the active plate 2 of described first interlocking device 100 connects the follower plate 2 that second stay cord 400 on the active plate 2 of driving member 5, the first interlocking devices 100 of second interlocking device 200 connects tri-interlocking devices 300; First stay cord 800 on the active plate 2 of described second interlocking device 200 connects the driving member 5 of tri-interlocking device 300; Second stay cord 500 on the active plate 2 of second interlocking device 200 connects the follower plate 4 of first interlocking device 100, and second stay cord 900 on the active plate 2 of driving member 5, the tri-interlocking devices 300 of first stay cord, 700 connections, first interlocking device 100 on the active plate 2 of described tri-interlocking device 300 connects the follower plate 4 of second interlocking device 200.Being connected here can be known by figure, is to be connected with the mode of square hole through square shaft, and the mode that is connected of the two realization is a lot of certainly, and those skilled in the art obviously can expect other substitute mode.Owing to be provided with return unit and syndeton, like this can follower plate can not drive the syndeton that driving member is rotated counterclockwise so that driving member can drive that follower plate is rotated counterclockwise, thus first breaker closing drives active plate when being rotated counterclockwise; Active plate drives the rotation of second driving member on the one hand; Drive simultaneously the rotation of the 3rd follower plate again, the rotation of second driving member then drives the rotation of second follower plate simultaneously, but the angle of follower plate rotation also deficiency so that the driven shaft rotation put in place to the dropout position; Therefore second release also can not threaded off; And in the 3rd follower plate when rotation, is also not enough so that the 3rd driven shaft rotates to the dropout position, in addition because the relation of syndeton can not drive the rotation of the 3rd driving member; Therefore the stay cord that is connected with second active plate and the 3rd biography part of second interlocking device still is in the tight state that collapses; So can not influence action next time, at this state, the one of which circuit breaker that the one of which active plate of the second or the 3rd interlock plate can also rotate also in i.e. the second or the 3rd circuit breaker can also close a floodgate; It is second or the active plate of tri-interlocking device when rotating to closing position years old; The follower plate that promptly can drive the 3rd or second interlocking device rotates to the dropout position, and another active plate just can not close a floodgate again like this, and remaining a circuit breaker can't close a floodgate again.
Can know by figure; The syndeton of present embodiment is to constitute like this: on driving member 5, be provided with stay cord guide 9; The stay cord 400,500,900 that connects follower plate 4 earlier through and the side of being close to this stay cord guide 9 connect again to follower plate 4 and constitute described syndeton, the diagram medium pulling rope is that the right side through stay cord guide 9 connects to the directive wheel that is positioned at follower plate 4 left sides again.The directive wheel that guide preferably can roll is lighter when the stay cord pull-up comes like this.And stay cord connects to follower plate through the stay cord guide on the driving member again, with regard to having realized very simply that driving member can drive that follower plate is rotated counterclockwise and follower plate can not drive the syndeton that driving member is rotated counterclockwise.Certainly thereby the present invention also can adopt other syndeton to realize that follower plate can drive that driving member is rotated counterclockwise and driving member can not drive follower plate and is rotated counterclockwise, such as being connected through unilateral bearing with follower plate through driving member.
In the present embodiment, also be provided with second directive wheel 10 on the described driving member 5, stay cord 600,700,800 even is pulled on the driving member 5 through this second directive wheel 10.In fact, also can know by figure, stay cord all to be connected with active plate, follower plate and driving member all be that mode through directive wheel connects because directive wheel can rotate, help the change of stay cord direction.
In the present embodiment; It is the arc guide barrel 51 in the center of circle that described driving member 5 is provided with the jointed shaft that is hinged with driving member 5 and follower plate 4; And the preferably jointed shaft and the driven shaft 8 coaxial settings that are hinged of driving member and follower plate, this described first, second directive wheel 9,10 is installed in the arc guide barrel 51 through trip bolt respectively.Through arc guide barrel 51; Can conveniently regulate the position of first and second directive wheel 9,10; Present embodiment is also established second arc guide barrel 52; When needed directive wheel is arranged in this second arc guide barrel, so just can regulate the distance of stay cord link and jointed shaft, thereby can regulate the anglec of rotation of the moving driven shaft of angle adjustable band that drives this driving member rotation when initiatively changeing rotation.
Claims (7)
1. the interlock between three circuit breakers; Comprise first, second and third interlocking device; Every interlocking device includes interlock plate, is installed in driving shaft and driven shaft on the interlock plate; Active plate has been connected on the driving shaft; Follower plate has been connected on the driven shaft; Active plate is connected with first stay cord and second stay cord respectively with respect to the two ends of driving shaft, it is characterized in that: the follower plate of described each interlocking device is provided with and orders about first return unit of follower plate to the trend of turning clockwise, and on each follower plate, is hinged with driving member; Driving member is provided with and orders about second return unit of driving member to the trend of turning clockwise; Be provided with between follower plate and the driving member can make to be provided with between follower plate and the driving member and can make driving member drive that follower plate is rotated counterclockwise and follower plate can not drive the syndeton that driving member is rotated counterclockwise, first stay cord on the active plate of described first interlocking device connects the driving member of second interlocking device, and second stay cord on the active plate of first interlocking device connects the follower plate of tri-interlocking device; First stay cord on the active plate of described second interlocking device connects the driving member of tri-interlocking device; Second stay cord on the active plate of second interlocking device connects the follower plate of first interlocking device, and first stay cord on the active plate of described tri-interlocking device connects the driving member of first interlocking device, and second stay cord on the active plate of tri-interlocking device connects the follower plate of second interlocking device.
2. the interlock between three circuit breakers according to claim 1; It is characterized in that: described driving member is provided with the stay cord guide, the stay cord that connects follower plate earlier through and the side of being close to this stay cord guide connect again to follower plate and constitute described syndeton.
3. the interlock between three circuit breakers according to claim 1 is characterized in that: described stay cord guide is first directive wheel.
4. the interlock between three circuit breakers according to claim 1 is characterized in that: also be provided with second directive wheel on the described driving member, stay cord even is pulled on the driving member through this second directive wheel.
5. the interlock between three circuit breakers according to claim 4; It is characterized in that: it is the arc guide barrel in the center of circle that described driving member is provided with the jointed shaft that is hinged with driving member and follower plate, and this described first, second directive wheel is installed in the arc guide barrel through trip bolt respectively.
6. the interlock between three circuit breakers according to claim 1 is characterized in that: jointed shaft and the coaxial setting of driven shaft that driving member and follower plate are hinged.
7. the interlock between three circuit breakers according to claim 1 is characterized in that: described first return unit is first extension spring, and the one of which end is connected on the interlock plate, and the other end is connected on the follower plate; Described second return unit is second extension spring, and the one of which end is connected on the interlock plate, and the other end is connected on the driving member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210299396.5A CN102842446B (en) | 2012-08-22 | 2012-08-22 | Interlocking device of three circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210299396.5A CN102842446B (en) | 2012-08-22 | 2012-08-22 | Interlocking device of three circuit breakers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102842446A true CN102842446A (en) | 2012-12-26 |
| CN102842446B CN102842446B (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210299396.5A Active CN102842446B (en) | 2012-08-22 | 2012-08-22 | Interlocking device of three circuit breakers |
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| Country | Link |
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| CN (1) | CN102842446B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578811A (en) * | 2013-10-30 | 2014-02-12 | 遵义长征电器制造有限公司 | Circuit breaker interlocking mechanism |
| CN106952791A (en) * | 2017-05-18 | 2017-07-14 | 南京大全电气研究院有限公司 | Interlocking device for circuit breaker and circuit breaker group with interlocking device |
| CN109036966A (en) * | 2015-04-29 | 2018-12-18 | 浙江正泰电器股份有限公司 | The linkage structure of contactor |
| CN114597085A (en) * | 2022-03-18 | 2022-06-07 | 江苏大全凯帆开关股份有限公司 | Mechanical interlock with clutch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5436415A (en) * | 1994-07-19 | 1995-07-25 | Eaton Corporation | Interlock for electrical switches |
| CN101101821A (en) * | 2006-07-03 | 2008-01-09 | 浙江正泰电器股份有限公司 | Circuit breaker set with interlocking apparatus |
| CN202373534U (en) * | 2011-11-28 | 2012-08-08 | 常熟开关制造有限公司(原常熟开关厂） | Interlocking device of circuit breaker group |
| CN202695214U (en) * | 2012-08-22 | 2013-01-23 | 浙江天正电气股份有限公司 | Interlocking apparatus among three breakers |
-
2012
- 2012-08-22 CN CN201210299396.5A patent/CN102842446B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5436415A (en) * | 1994-07-19 | 1995-07-25 | Eaton Corporation | Interlock for electrical switches |
| CN101101821A (en) * | 2006-07-03 | 2008-01-09 | 浙江正泰电器股份有限公司 | Circuit breaker set with interlocking apparatus |
| CN202373534U (en) * | 2011-11-28 | 2012-08-08 | 常熟开关制造有限公司(原常熟开关厂） | Interlocking device of circuit breaker group |
| CN202695214U (en) * | 2012-08-22 | 2013-01-23 | 浙江天正电气股份有限公司 | Interlocking apparatus among three breakers |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578811A (en) * | 2013-10-30 | 2014-02-12 | 遵义长征电器制造有限公司 | Circuit breaker interlocking mechanism |
| CN103578811B (en) * | 2013-10-30 | 2016-03-30 | 遵义长征电器制造有限公司 | Circuit breaker interlocking device |
| CN109036966A (en) * | 2015-04-29 | 2018-12-18 | 浙江正泰电器股份有限公司 | The linkage structure of contactor |
| CN106952791A (en) * | 2017-05-18 | 2017-07-14 | 南京大全电气研究院有限公司 | Interlocking device for circuit breaker and circuit breaker group with interlocking device |
| CN106952791B (en) * | 2017-05-18 | 2019-04-09 | 江苏大全凯帆开关有限公司 | Interlocking device for circuit breaker and circuit breaker group with interlocking device |
| CN114597085A (en) * | 2022-03-18 | 2022-06-07 | 江苏大全凯帆开关股份有限公司 | Mechanical interlock with clutch |
| CN114597085B (en) * | 2022-03-18 | 2023-12-29 | 江苏大全凯帆开关股份有限公司 | Mechanical interlock with clutch |
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| Publication number | Publication date |
|---|---|
| CN102842446B (en) | 2014-08-27 |
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