CN105428136A - Switch interlock device for earthing switch, breaker and rear door of switch cabinet - Google Patents
Switch interlock device for earthing switch, breaker and rear door of switch cabinet Download PDFInfo
- Publication number
- CN105428136A CN105428136A CN201510978584.4A CN201510978584A CN105428136A CN 105428136 A CN105428136 A CN 105428136A CN 201510978584 A CN201510978584 A CN 201510978584A CN 105428136 A CN105428136 A CN 105428136A
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- Prior art keywords
- interlocking
- fixed
- switch
- spring
- interlock
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/06—Interlocking mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
Abstract
The invention relates to a switch interlock device for an earthing switch, a breaker and a rear door of a switch cabinet. The switch interlock device comprises a shell, a breaker interlock mechanism, an earthing switch interlock mechanism and a rear door interlock mechanism, wherein the breaker interlock mechanism, the earthing switch interlock mechanism and the rear door interlock mechanism are arranged in the shell; the breaker interlock mechanism comprises an interlock pressure plate, a connecting rod, a connecting rod shaft, a spring mechanism, an interlock plate, the breaker and a guide rail; the earthing switch interlock mechanism comprises a first transmission shaft, a spline shaft sleeve, a second transmission shaft, the earthing switch, a worm and gear transmission mechanism, a first movable nut and an interlock guide rod; and the rear door interlock mechanism comprises a third transmission shaft, a screw seat, an upper guide rod, a lower guide rod, a slide block, a second movable nut, a second spring, a third spring, a first interlock sheet, a second interlock sheet, an interlock hook and the rear door. Opening and closing of the earthing switch and interlocking of the earthing switch, the breaker and the rear door can be achieved as the key of five-protection interlocking of a high-voltage switch cabinet; and the switch interlock device is simple to operate, safe and reliable.
Description
Technical field
The present invention relates to a kind of switch interlocking device, particularly the switch interlocking device of a kind of earthed switch, circuit breaker and rear door of switch cabinet.
Background technology
In whole high-voltage electric system, earthed switch deciliter be the key issue of the anti-interlocking of high-tension switch cabinet five with the interlocking problem at circuit breaker and back door because when circuit breaker is in test position, earthed switch can carry out deciliter, and back door can be opened; And when circuit breaker is in service position, earthed switch can not carry out deciliter, back door can not be opened, so just must guarantee the complete and reliable of this interlock when designing; Otherwise quality and safe handcart accident will be there is, the different kinds of drive, just have different transmission interlocking mechanisms to match with it, turbine and worm transmission mechanism transmission interlocking mechanism corresponding thereto, completely different from other interlocking device in design and work originally, and interlocking device is reliable and stable, convenient and strength-saving during operation.
Summary of the invention
The present invention is directed to the switch interlocking device that the problems referred to above propose a kind of earthed switch, circuit breaker and rear door of switch cabinet, what can be grounded switch deciliter is the anti-interlocking of high-tension switch cabinet five with the interlocking problem at circuit breaker and back door, simple to operate, safe and reliable.
Concrete technical scheme is as follows:
A kind of earthed switch, the switch interlocking device of circuit breaker and rear door of switch cabinet, comprise housing, with the circuit breaker interlocking device be arranged in housing, earthed switch interlocking device and rear door interlocking mechanism, described circuit breaker interlocking device comprises interlocking pressing plate, connecting rod, pitman shaft, spring mechanism, interlock plate, circuit breaker and guide rail, described interlocking pressing plate comprises into pressing plate main body and the swinging plate of C shape structure, pressing plate main body is slidably fixed in inner walls, swinging plate is positioned at outside, described connecting rod one end is fixedly connected with interlocking pressing plate, the other end is fixed on pitman shaft, described interlock plate is fixed on pitman shaft, the cross section of interlock plate is n shape structure, described spring mechanism comprises spring base and the first spring, spring base is U-shaped structure, described guide rail is fixed on housing, circuit breaker is slidably fixed on guide rail, described first spring is fixed on guide rail, interlock plate is plug-type to be arranged in spring base, first spring one end is connected with interlock plate, the other end is connected with spring base, described pitman shaft is fixed on housing by the first rotating shaft is rotating,
Described earthed switch interlocking device comprises the first power transmission shaft, hub splines, second driving shaft, earthed switch, turbine and worm transmission mechanism, first travelling nut and interlocking guide rod, described first power transmission shaft is connected with second driving shaft by hub splines, first power transmission shaft is provided with external screw thread, first travelling nut is provided with external screw thread, first travelling nut is fixed on the first power transmission shaft by threaded engagement, described interlocking guide rod is fixed on the first travelling nut, described turbine and worm transmission mechanism comprises transmission mechanism housing, turbine and worm screw, transmission mechanism housing is fixed on the housing of switch interlocking device, cross section is that the turbine of sector structure is meshed with worm screw, described worm screw is connected with second driving shaft, turbine is connected with the main shaft of earthed switch by switching piece, make main shaft and the turbine synchronous axial system of earthed switch, described earthed switch is fixed on housing,
Described rear door interlocking mechanism comprises the 3rd power transmission shaft, screw rodb base, top guide bar, lower guide rod, slide block, second travelling nut, second spring, 3rd spring, first locking plate, second locking plate, interlocking hook and back door, what described top guide bar and lower guide rod were parallel to each other is fixed in screw rodb base, described 3rd power transmission shaft is through screw rodb base, 3rd power transmission shaft one end is fixedly connected with the worm screw of turbine and worm transmission mechanism, the other end is provided with external screw thread, external screw thread on 3rd power transmission shaft and the internal thread of the second travelling nut cooperatively interact, second travelling nut is movably fixed on the 3rd power transmission shaft, second travelling nut is connected with top guide bar, described slide block one end is fixedly connected with lower guide rod, the other end is slidably arranged on the 3rd power transmission shaft, described second spring housing is combined in lower guide rod outside, one end of second spring is fixed on screw rodb base, the other end is fixed on lower guide rod, described second locking plate is fixed on housing, interlocking hook and the first locking plate are fixed on the second locking plate by the second rotating shaft is rotating, make interlocking hook and the first locking plate can synchronous axial system, described first locking plate one end is connected with top guide bar, the other end is connected with the second locking plate by the 3rd spring, described interlocking hook agrees with mutually with the groove of taking be arranged on back door.
A switch interlocking device for earthed switch, circuit breaker and rear door of switch cabinet, wherein, described interlocking hook is arranged with the first locking plate is mutually vertical.
Beneficial effect of the present invention is:
When circuit breaker is in test position time, the swinging plate of interlocking pressing plate is pressed with hand, while interlocking pressing plate moves down, drivening rod moves down, and while connecting rod moves down, drivening rod axle is around the rotation of the first rotating shaft, and the interlock plate be arranged on pitman shaft moves up, exposed outside at spring mechanism, thus blocked the movement of circuit breaker, now the first spring is in extended state, and spring mechanism is used for auxiliary interlock apparatus plate and resets, simultaneously, rotate the first power transmission shaft, thus drive second driving shaft and rotate with the worm screw that second driving shaft fixes, worm screw drives turbine rotation, turbine drives the main axis of earthed switch, the folding of moving contact of grounding switch and fixed contact is controlled with the rotation of main shaft, thus deciliter earthed switch, achieve the interlocking to circuit breaker when deciliter earthed switch, when rotation the first power transmission shaft, the first travelling nut, by moving to pressing plate direction of interlocking with the threaded engagement of the first power transmission shaft, drives interlocking guide rod to move, and interlocking guide rod is pressed on interlocking pressing plate, interlocking pressing plate can not be moved up, thus realize interlocking, while rotation first power transmission shaft, the 3rd drive axis is driven again by turbine and worm mechanism, 3rd rotating shaft drives moves to direction, back door with the second travelling nut of its threaded engagement, second travelling nut drives the top guide bar that linked into an integrated entity by screw rodb base and lower guide rod synchronously to move, top guide bar withstands the downside of the first locking plate, the downside of the first locking plate is rotated to back door, due at the rotation of the first locking plate and the second spring, under the effect of the 3rd spring, interlocking hook is pulled to lift, interlocking hook can not be caught on back door takes groove, thus rear Xiamen can be opened, remove interlocking, thus realize when circuit breaker is in test position time, earthed switch can be rotated and back door can be opened.
Otherwise when circuit breaker is in service position time, due to the effect of spring mechanism, can not rotate inwards, interlocking pressing plate can not move down, interlocking guide rod now is also in below interlocking pressing plate, also can ensure that interlocking pressing plate can not move down, first power transmission shaft can not rotate, time earthed switch is in gate-dividing state, due to the movement of slide block and travelling nut, in drive, the movement of lower guide rod, first locking plate is moved to the direction away from back door, hook of now interlocking catches on back door, back door can not be opened, thus reach five anti-requirements, thus realize when circuit breaker is in service position time, earthed switch can not be shaken, the effect that back door can not be opened.
In sum, what the present invention can be grounded switch deciliter is the anti-interlocking of high-tension switch cabinet five with the interlocking problem at circuit breaker and back door, simple to operate, safe and reliable.
Accompanying drawing explanation
Fig. 1 is cutaway view of the present invention.
Fig. 2 is circuit breaker interlocking device of the present invention cutaway view.
Fig. 3 is earthed switch interlocking device of the present invention cutaway view.
Fig. 4 is rear door interlocking mechanism cutaway view of the present invention.
Fig. 5 is A portion of the present invention enlarged drawing.
Fig. 6 is turbine and worm transmission mechanism structure chart of the present invention.
Fig. 7 is B portion of the present invention enlarged drawing.
Embodiment
For making technical scheme of the present invention clear and definite more, below in conjunction with accompanying drawing, the present invention is described further, and any technical characteristic to technical solution of the present invention carries out the scheme that equivalencing and conventional reasoning draw and all falls into scope.
A kind of earthed switch as shown in the figure, the switch interlocking device of circuit breaker and rear door of switch cabinet, comprise housing 1, with the circuit breaker interlocking device 2 be arranged in housing, earthed switch interlocking device 3 and rear door interlocking mechanism 4, described circuit breaker interlocking device 2 comprises interlocking pressing plate 21, connecting rod 22, pitman shaft 23, spring mechanism 24, interlock plate 25, circuit breaker 26 and guide rail 27, described interlocking pressing plate 21 comprises into pressing plate main body 28 and the swinging plate 29 of C shape structure, pressing plate main body 28 is slidably fixed on housing 1 inwall, it is outside that swinging plate 29 is positioned at housing 1, described connecting rod 22 one end is fixedly connected with interlocking pressing plate 21, the other end is fixed on pitman shaft 23, described interlock plate 25 is fixed on pitman shaft 23, the cross section of interlock plate 25 is n shape structure, described spring mechanism 24 comprises spring base 210 and the first spring 211, spring base 210 is U-shaped structure, described guide rail 27 is fixed on housing 1, circuit breaker 26 is slidably fixed on guide rail 27, described first spring 211 is fixed on guide rail 27, interlock plate 25 is plug-type to be arranged in spring base 210, first spring 211 one end is connected with interlock plate 25, the other end is connected with spring base 210, described pitman shaft 23 is fixed on housing 1 by the first rotating shaft 212 is rotating,
Described earthed switch interlocking device 3 comprises the first power transmission shaft 31, hub splines 32, second driving shaft 33, earthed switch 34, turbine and worm transmission mechanism 35, first travelling nut 36 and interlocking guide rod 37, described first power transmission shaft 31 is connected with second driving shaft 33 by hub splines 32, first power transmission shaft 31 is provided with external screw thread, first travelling nut 36 is provided with external screw thread, first travelling nut 36 is fixed on the first power transmission shaft 31 by threaded engagement, described interlocking guide rod 37 is fixed on the first travelling nut 36, described turbine and worm transmission mechanism 35 comprises transmission mechanism housing 38, turbine 39 and worm screw 310, transmission mechanism housing 38 is fixed on the housing 1 of switch interlocking device, cross section is that the turbine 39 of sector structure is meshed with worm screw 310, described worm screw 310 is connected with second driving shaft 33, turbine 39 is connected with the main shaft 312 of earthed switch by switching piece 311, make main shaft 312 and turbine 39 synchronous axial system of earthed switch, thus control the folding of moving contact of grounding switch and fixed contact, described earthed switch 34 is fixed on housing 1,
Described rear door interlocking mechanism 4 comprises the 3rd power transmission shaft 41, screw rodb base 42, top guide bar 43, lower guide rod 44, slide block 45, second travelling nut 46, second spring 47, 3rd spring 48, first locking plate 49, second locking plate 410, interlocking hook 411 and back door 412, what described top guide bar 43 and lower guide rod 44 were parallel to each other is fixed in screw rodb base 42, described 3rd power transmission shaft 41 is through screw rodb base 42, 3rd power transmission shaft 41 one end is fixedly connected with the worm screw 310 of turbine and worm transmission mechanism 35, the other end is provided with external screw thread, the internal thread of the external screw thread on the 3rd power transmission shaft 41 and the second travelling nut 46 cooperatively interacts, second travelling nut 46 is movably fixed on the 3rd power transmission shaft 41, second travelling nut 46 is connected with top guide bar 43, described slide block 45 one end is fixedly connected with lower guide rod 44, the other end is slidably arranged on the 3rd power transmission shaft 41, it is outside that described second spring 47 is linked in lower guide rod 44, one end of second spring 47 is fixed on screw rodb base 42, the other end is fixed on lower guide rod 44, described second locking plate 410 is fixed on housing 1, interlocking hook 411 and the first locking plate 49 are fixed on the second locking plate 410 by the second rotating shaft 413 is rotating, make interlocking hook 411 and the first locking plate 49 can synchronous axial system, described interlocking hook 411 is arranged with the first locking plate 49 is mutually vertical, described first locking plate 49 one end is connected with top guide bar 43, the other end is connected with the second locking plate 410 by the 3rd spring 48, described interlocking hook 411 agrees with mutually with the groove 414 of taking be arranged on back door 412.
When circuit breaker is in test position time, the swinging plate of interlocking pressing plate is pressed with hand, while interlocking pressing plate moves down, drivening rod moves down, and while connecting rod moves down, drivening rod axle is around the rotation of the first rotating shaft, and the interlock plate be arranged on pitman shaft moves up, exposed outside at spring mechanism, thus blocked the movement of circuit breaker, now the first spring is in extended state, and spring mechanism is used for auxiliary interlock apparatus plate and resets, simultaneously, rotate the first power transmission shaft, thus drive second driving shaft and rotate with the worm screw that second driving shaft fixes, worm screw drives turbine rotation, turbine drives the main axis of earthed switch, the folding of moving contact of grounding switch and fixed contact is controlled with the rotation of main shaft, thus deciliter earthed switch, achieve the interlocking to circuit breaker when deciliter earthed switch, when rotation the first power transmission shaft, the first travelling nut, by moving to pressing plate direction of interlocking with the threaded engagement of the first power transmission shaft, drives interlocking guide rod to move, and interlocking guide rod is pressed on interlocking pressing plate, interlocking pressing plate can not be moved up, thus realize interlocking, while rotation first power transmission shaft, the 3rd drive axis is driven again by turbine and worm mechanism, 3rd rotating shaft drives moves to direction, back door with the second travelling nut of its threaded engagement, second travelling nut drives the top guide bar that linked into an integrated entity by screw rodb base and lower guide rod synchronously to move, top guide bar withstands the downside of the first locking plate, the downside of the first locking plate is rotated to back door, due at the rotation of the first locking plate and the first spring, under the effect of the second spring, interlocking hook is pulled to lift, interlocking hook can not be caught on back door takes groove, thus rear Xiamen can be opened, remove interlocking, thus realize when circuit breaker is in test position time, earthed switch can be rotated and back door can be opened.
Otherwise when circuit breaker is in service position time, due to the effect of spring mechanism, can not rotate inwards, interlocking pressing plate can not move down, interlocking guide rod now is also in below interlocking pressing plate, also can ensure that interlocking pressing plate can not move down, first power transmission shaft can not rotate, time earthed switch is in gate-dividing state, due to the movement of slide block and travelling nut, in drive, the movement of lower guide rod, first locking plate is moved to the direction away from back door, hook of now interlocking catches on back door, back door can not be opened, thus reach five anti-requirements, thus realize when circuit breaker is in service position time, earthed switch can not be shaken, the effect that back door can not be opened.
In sum, what the present invention can be grounded switch deciliter is the anti-interlocking of high-tension switch cabinet five with the interlocking problem at circuit breaker and back door, simple to operate, safe and reliable.
Claims (2)
1. an earthed switch, the switch interlocking device of circuit breaker and rear door of switch cabinet, it is characterized by, comprise housing, with the circuit breaker interlocking device be arranged in housing, earthed switch interlocking device and rear door interlocking mechanism, described circuit breaker interlocking device comprises interlocking pressing plate, connecting rod, pitman shaft, spring mechanism, interlock plate, circuit breaker and guide rail, described interlocking pressing plate comprises into pressing plate main body and the swinging plate of C shape structure, pressing plate main body is slidably fixed in inner walls, swinging plate is positioned at outside, described connecting rod one end is fixedly connected with interlocking pressing plate, the other end is fixed on pitman shaft, described interlock plate is fixed on pitman shaft, the cross section of interlock plate is n shape structure, described spring mechanism comprises spring base and the first spring, spring base is U-shaped structure, described guide rail is fixed on housing, circuit breaker is slidably fixed on guide rail, described first spring is fixed on guide rail, interlock plate is plug-type to be arranged in spring base, first spring one end is connected with interlock plate, the other end is connected with spring base, described pitman shaft is fixed on housing by the first rotating shaft is rotating,
Described earthed switch interlocking device comprises the first power transmission shaft, hub splines, second driving shaft, earthed switch, turbine and worm transmission mechanism, first travelling nut and interlocking guide rod, described first power transmission shaft is connected with second driving shaft by hub splines, first power transmission shaft is provided with external screw thread, first travelling nut is provided with external screw thread, first travelling nut is fixed on the first power transmission shaft by threaded engagement, described interlocking guide rod is fixed on the first travelling nut, described turbine and worm transmission mechanism comprises transmission mechanism housing, turbine and worm screw, transmission mechanism housing is fixed on the housing of switch interlocking device, cross section is that the turbine of sector structure is meshed with worm screw, described worm screw is connected with second driving shaft, turbine is connected with the main shaft of earthed switch by switching piece, make main shaft and the turbine synchronous axial system of earthed switch, described earthed switch is fixed on housing,
Described rear door interlocking mechanism comprises the 3rd power transmission shaft, screw rodb base, top guide bar, lower guide rod, slide block, second travelling nut, second spring, 3rd spring, first locking plate, second locking plate, interlocking hook and back door, what described top guide bar and lower guide rod were parallel to each other is fixed in screw rodb base, described 3rd power transmission shaft is through screw rodb base, 3rd power transmission shaft one end is fixedly connected with the worm screw of turbine and worm transmission mechanism, the other end is provided with external screw thread, external screw thread on 3rd power transmission shaft and the internal thread of the second travelling nut cooperatively interact, second travelling nut is movably fixed on the 3rd power transmission shaft, second travelling nut is connected with top guide bar, described slide block one end is fixedly connected with lower guide rod, the other end is slidably arranged on the 3rd power transmission shaft, described second spring housing is combined in lower guide rod outside, one end of second spring is fixed on screw rodb base, the other end is fixed on lower guide rod, described second locking plate is fixed on housing, interlocking hook and the first locking plate are fixed on the second locking plate by the second rotating shaft is rotating, make interlocking hook and the first locking plate can synchronous axial system, described first locking plate one end is connected with top guide bar, the other end is connected with the second locking plate by the 3rd spring, described interlocking hook agrees with mutually with the groove of taking be arranged on back door.
2. the switch interlocking device of a kind of earthed switch as claimed in claim 1, circuit breaker and rear door of switch cabinet, is characterized by, and described interlocking hook is arranged with the first locking plate is mutually vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510978584.4A CN105428136A (en) | 2015-12-24 | 2015-12-24 | Switch interlock device for earthing switch, breaker and rear door of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510978584.4A CN105428136A (en) | 2015-12-24 | 2015-12-24 | Switch interlock device for earthing switch, breaker and rear door of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105428136A true CN105428136A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510978584.4A Pending CN105428136A (en) | 2015-12-24 | 2015-12-24 | Switch interlock device for earthing switch, breaker and rear door of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105428136A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788947A (en) * | 2016-04-27 | 2016-07-20 | 厦门明翰电气股份有限公司 | Disconnecting switch closing and opening interlocking mechanism |
| CN106206146A (en) * | 2016-08-31 | 2016-12-07 | 华仪电气股份有限公司 | The earthed switch of a kind of switch cubicle and the interlock of door |
| CN108847605A (en) * | 2018-09-06 | 2018-11-20 | 华仪电气股份有限公司 | A kind of five-prevention interlocking device and the hands injured with it |
| CN108878190A (en) * | 2017-05-08 | 2018-11-23 | 镇江大全伊顿电器有限公司 | Earthing switch and rear door of switch cabinet interlocking gear |
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| CN202855668U (en) * | 2012-09-21 | 2013-04-03 | 北海银河开关设备有限公司 | Circuit breaker interlocking device |
| CN204740969U (en) * | 2015-06-09 | 2015-11-04 | 向荣集团有限公司 | Turbine worm mechanism's earthing switch and circuit breaker front axle interlocking device |
| CN204760302U (en) * | 2015-06-30 | 2015-11-11 | 向荣集团有限公司 | Turbine worm mechanism's earthing switch and back door interlocking device |
| CN205335157U (en) * | 2015-12-24 | 2016-06-22 | 向荣集团有限公司 | Switch interlocking device at earthing switch , circuit breaker and cubical switchboard back door |
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2015
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Patent Citations (5)
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| CN201336239Y (en) * | 2008-11-20 | 2009-10-28 | 镇江大全伊顿电器有限公司 | Error-preventive operation interlocking mechanism for grounding switch |
| CN202855668U (en) * | 2012-09-21 | 2013-04-03 | 北海银河开关设备有限公司 | Circuit breaker interlocking device |
| CN204740969U (en) * | 2015-06-09 | 2015-11-04 | 向荣集团有限公司 | Turbine worm mechanism's earthing switch and circuit breaker front axle interlocking device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788947A (en) * | 2016-04-27 | 2016-07-20 | 厦门明翰电气股份有限公司 | Disconnecting switch closing and opening interlocking mechanism |
| CN105788947B (en) * | 2016-04-27 | 2017-11-21 | 厦门明翰电气股份有限公司 | A kind of disconnecting switch on/off switch interlocking mechanism |
| CN106206146A (en) * | 2016-08-31 | 2016-12-07 | 华仪电气股份有限公司 | The earthed switch of a kind of switch cubicle and the interlock of door |
| CN106206146B (en) * | 2016-08-31 | 2018-09-25 | 华仪电气股份有限公司 | A kind of interlock of the earthing switch and door of switchgear |
| CN108878190A (en) * | 2017-05-08 | 2018-11-23 | 镇江大全伊顿电器有限公司 | Earthing switch and rear door of switch cabinet interlocking gear |
| CN108847605A (en) * | 2018-09-06 | 2018-11-20 | 华仪电气股份有限公司 | A kind of five-prevention interlocking device and the hands injured with it |
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| PB01 | Publication | ||
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Application publication date: 20160323 |