CN103441439B - A kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed - Google Patents

A kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed Download PDF

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Publication number
CN103441439B
CN103441439B CN201310396908.4A CN201310396908A CN103441439B CN 103441439 B CN103441439 B CN 103441439B CN 201310396908 A CN201310396908 A CN 201310396908A CN 103441439 B CN103441439 B CN 103441439B
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China
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switch
cabinet
cam
operating
push rod
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CN103441439A (en
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苏水郑
房帅
王清鑫
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XIAMEN MINGUANG ELECTRICAL INDUSTRIAL Co Ltd
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XIAMEN MINGUANG ELECTRICAL INDUSTRIAL Co Ltd
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Abstract

The present invention discloses a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed, and comprise cabinet, cabinet door, an operating sleeve is connected with isolator operation axle, corresponding first procedure lock of operating sleeve; One drives the operating axis of earthed switch divide-shut brake to be contained on cabinet, and it is corresponding with operating axis that cabinet is provided with handle hole, corresponding second procedure lock of operating axis; First procedure lock and the second procedure lock share one opening lock not from the key of lock; The first mutual interlocking gear of cabinet door and earthed switch is equipped with in the front side of cabinet, first mutual interlocking gear comprises the snap close be fixed on cabinet door, be contained in the first fanning strip on operating axis and the first limiting plate, be contained in the first support on cabinet, be contained in the latch hook on the first support, match with latch hook and the L shape gag lever post fixed with the first limiting plate; Described operating axis is also opened earthed switch combined floodgate limit second procedure lock by the second cam, the second limiting plate; Interlock function of the present invention is perfect, simple to operate, fail safe is high.

Description

A kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed
Technical field
The present invention relates to switch cubicle, especially a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed.
Background technology
Switch cubicle is controller switching equipment conventional in electric power system, switch cubicle will comprise cabinet usually, circuit breaker, isolating switch, the mechanisms such as earthed switch, fail safe is one of most important technical indicator of switch cubicle, switch cubicle is in order to reach the requirement of " five prevent ", namely prevent on-load from closing a floodgate, prevent mistakenly entering charged chamber, prevent line with ground from closing a floodgate, prevent on-load broaching tool lock, prevent live connection of ground wire, each manufacturer devises various mutual interlocking gear in switch cubicle, but there is subject matter is at present, the interlock function imperfection of partial switch cabinet, Reliability of Microprocessor is lower, there are some potential safety hazards, the mutual interlocking gear of another part switch cubicle is complicated, complex operation, poor universality.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed, and its interlock function is perfect, simple to operate, fail safe is high.
For achieving the above object, technical scheme of the present invention is: a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed, comprise cabinet, isolating switch is equipped with on the top of cabinet, vacuum circuit-breaker is equipped with at the middle part of cabinet, earthed switch is equipped with in the bottom of cabinet, top on front side of cabinet is provided with isolator operation room, bottom on front side of cabinet is provided with cabinet door, one operating sleeve is connected with isolator operation axle and is in isolator operation indoor, and the first procedure lock is equipped with in isolator operation indoor;
One operating axis is contained on cabinet, and it is corresponding with operating axis that the front downside of cabinet is provided with a handle hole, and the second procedure lock is equipped with on described handle hole limit, and operating axis rotates clockwise and drives earthed switch to close a floodgate, and operating axis rotates counterclockwise drive grounding switch tripping;
First procedure lock and the second procedure lock share one opening lock not from the key of lock, after first procedure lock takes out key, its dead bolt stretches out and blocks the through hole of described operating sleeve front end, after second procedure lock takes out key, its dead bolt stretches out and blocks described handle hole on the downside of cabinet, after first procedure lock inserts key turns, its dead bolt bounces back and departs from the through hole of described operating sleeve front end, and after the second procedure lock inserts key turns, its dead bolt bounces back and departs from described handle hole on the downside of cabinet;
The first mutual interlocking gear is equipped with in the front side of cabinet, described first mutual interlocking gear comprises the snap close be contained in inside cabinet door, be contained in the first fanning strip on operating axis and the first limiting plate, the first support cabinet below operating axis is equipped with, the latch hook moved up and down first support is equipped with, the gag lever post of a L shape is fixed in the bottom of described first limiting plate, match with described snap close in the front end of gag lever post, the first stage clip applies reach power to described first limiting plate operating axis is equipped with, a vertical bearing pin first support is equipped with, the rear end of latch hook is enclosed within bearing pin, the bottom of bearing pin is equipped with the second stage clip and is applied with the power of moving to latch hook, move after the front end that when cabinet door is closed, described snap close withstands L shape gag lever post makes the first limiting plate, the rotation of the first fanning strip is not interrupted, operating axis rotates counterclockwise the first fanning strip described in when driving grounding switch tripping and follows operating axis rotation pressure latch hook and make the front end of latch hook hook described snap close, operating axis rotates clockwise the first fanning strip described in when driving earthed switch to close a floodgate and departs from latch hook, latch hook under the second stage clip effect on move, the front end of latch hook departs from described snap close, cabinet door is opened rear described snap close and is departed from L shape gag lever post, described first limiting plate moves forward under the first stage clip effect, described first limiting plate front end limits the first fanning strip and rotates,
Described operating axis is fixed with the second cam, the second limiting plate first support is equipped with, match with the lower end of the dead bolt of the second procedure lock in one end of second limiting plate, the other end of the second limiting plate matches with the second cam, when operating axis rotates and earthed switch is closed a floodgate, operating axis drives the second cam to withstand one end of the second limiting plate, the second limiting plate other end withstands moving down of dead bolt restriction dead bolt, when operating axis rotates and makes grounding switch tripping, operating axis drives one end of the second cam disengages second limiting plate, and the second limiting plate removes the restriction to dead bolt.
Further improvement, the both sides in described cabinet face are behind the door provided with multiple draw-in groove from top to bottom, and on front side of cabinet, both sides are provided with multiple grab from top to bottom, on multiple grabs that cabinet door utilizes described multiple draw-in groove to be plugged on described in cabinet.The plug-in type realizing cabinet door and cabinet is installed, and facilitates the entirety of cabinet door to shift out.
Further improvement, described earthed switch is provided with ground connection rotating shaft, ground connection rotating shaft is fixed the first connecting lever, described operating axis is fixed with the second connecting lever, and the free end of the first connecting lever is connected by first connecting rod with the free end of the second connecting lever.To facilitate the position arranging earthed switch.
Further improvement, described first fanning strip is connected with operating axis by the first cam, and the first fanning strip is provided with fan groove, and a screw is fixed on the first cam through fan groove and also the first cam and the first fanning strip is clamped together.The relative position of the first fanning strip and operating axis can be adjusted, improve the reliability of action.
Preferably described first procedure lock comprises bearing, key, pedestal mounted dead bolt, and bearing is provided with the spliced eye of key, and described second procedure lock is identical with the first procedure lock structure.
Further improvement, described operating axis is fixed with the 3rd cam, the outer peripheral face of the 3rd cam is provided with an arc groove, and the first support is provided with spacing preiection, and described arc groove matches to limit the rotational angle that operating axis rotates and reverse with described spacing preiection.Better can control the rotational angle of operating axis when earthed switch combined floodgate and separating brake, improve the reliability of divide-shut brake action.
Further improvement, described L shape gag lever post is also equipped with back-moving spring.L shape gag lever post is made more reliably to drive the first limiting plate to reset.
Further improvement, the second mutual interlocking gear is equipped with in described isolator operation indoor, described second mutual interlocking gear comprises the four-cam and the 5th cam that are fixed on operating sleeve outer peripheral face, four-cam and the 5th cam are circumferentially interspersed, second support is set below operating sleeve, the first push rod, the second push rod and a pull bar second support be equipped with, first push rod, the second push rod and pull bar be parallel to each other and with the axis perpendicular of operating sleeve, match with four-cam and the 5th cam respectively in the top of the first push rod and the second push rod;
After second support, a rotating shaft is set, the 3rd connecting lever is fixed in rotating shaft one end, the other end fixes the 4th connecting lever, 3rd connecting lever swinging end is connected with the lower end of pull bar, the operating mechanism of vacuum circuit-breaker is provided with combined floodgate axle, one end of combined floodgate axle is fixed with the 5th connecting lever, the swinging end of the 5th connecting lever is connected by second connecting rod with the 4th connecting lever swinging end, and when vacuum circuit-breaker closes a floodgate, the 5th connecting lever pulls second connecting rod to move down;
The operating mechanism of vacuum circuit-breaker is also provided with trip shaft, one end of trip shaft is fixed with the 6th connecting lever, the swinging end of the 6th connecting lever is connected by third connecting rod with the lower end of the second push rod, move down when the second push rod top and the 5th cam contact, then make trip shaft turn to trip status by third connecting rod and the 6th connecting lever;
A upper cover plate is fixed in the upper end of pull bar, and upper cover plate is in before operating sleeve;
Cabinet door is fixed with a lock dog to match with the lower end of the first push rod, when closing Over-The-Counter door, lock dog matches with the lower end of the first push rod and pulls the first push rod to move down, and when four-cam withstands the first push rod top, it is dead that the lower end of the first push rod inserts cabinet door knob cabinet door lock further;
3rd stage clip is housed between the first push rod and the second support, the 4th stage clip is housed between the second push rod and the second support, the 5th stage clip is housed between the first pull bar and the second support.Realize the interlocking of isolating switch, vacuum circuit-breaker and cabinet door.
Improve further again, operating sleeve outer peripheral face between four-cam and the 5th cam is also fixed with the 6th cam, second support is also provided with the 3rd push rod, match with the 6th cam in the upper end of the 3rd push rod, 6th stage clip is housed between the 3rd push rod and the second support, an indicating arm is fixed at the middle part of the 3rd push rod, and it is outer and " combined floodgate " and " separating brake " direction board is housed that the second support is stretched out in the front end of indicating arm.Can in switch cubicle conveniently find out that isolating switch is in outward " combined floodgate " state or " separating brake " state.
Improve further again, vacuum circuit-breaker is provided with motor-operating mechanism, described operating sleeve side is provided with the first travel switch, the power supply of motor-operating mechanism described in first stroke switch control rule, described operating sleeve outer peripheral face fixes a contact match with the first travel switch, when operating sleeve makes isolator operation axle turn to closing position, described contact contacts with the first travel switch and the power supply of described motor-operating mechanism is energized; Described first support is equipped with the second travel switch, the middle part of described latch hook is fixed a touch panel and is matched with the second travel switch, operating axis rotates counterclockwise the first fanning strip described in when driving grounding switch tripping and follows operating axis rotation pressure latch hook, touch panel in the middle part of latch hook depresses the second travel switch makes the second travel switch connect, and the second travel switch and the first travel switch are in series.Realize the electrical interlock of isolating switch, earthed switch and vacuum circuit-breaker further.
The present invention has following interlock function:
1, one is shared opening lock not from the key of lock by the first procedure lock and the second procedure lock, after first procedure lock takes out key, its dead bolt stretches out and blocks the through hole of described operating sleeve front end, after second procedure lock takes out key, its dead bolt stretches out and blocks described handle hole on the downside of cabinet, and isolating switch and earthed switch can not be operated simultaneously; When operating axis rotates and earthed switch is closed a floodgate simultaneously, operating axis drives the second cam to withstand one end of the second limiting plate, the second limiting plate other end withstands moving down of dead bolt restriction dead bolt, like this when earthed switch is in "on" position, the key of the second procedure lock cannot take out, first procedure lock just cannot be opened, and isolating switch just can not operate; Prevent from being in ground state close isolating switch or prevent live connection of ground wire, occur security incident;
2, operating axis rotates counterclockwise the first fanning strip described in when driving grounding switch tripping and follows operating axis and rotate pressure latch hook make the front end of latch hook hook described snap close, because snap close and cabinet door fix, therefore, when earthed switch is in gate-dividing state, cabinet door cannot be opened; Prevent mistakenly entering charged chamber;
3, when earthed switch combined floodgate cabinet door is opened, described snap close departs from L shape gag lever post, and described first limiting plate moves forward under the first stage clip effect, and described first limiting plate front end limits the first fanning strip and rotates; Therefore operating axis can not operate, and prevents opening cabinet door and carries out grounding switch tripping.
Further, by the second mutual interlocking gear, realize isolating switch, vacuum circuit-breaker and cabinet door and interlock, when namely vacuum circuit-breaker closes a floodgate, isolating switch is locked cannot operate; Isolating switch closes a floodgate, and cabinet door is locked cannot be opened; When cabinet door is opened, isolating switch is locked cannot be operated; During isolating switch separating brake, vacuum circuit-breaker is locked cannot close a floodgate.
Further again, by being provided with the first travel switch on described operating sleeve side, the motor-operating mechanism on the second travel switch that the first support is equipped with and vacuum circuit-breaker realizes electrical interlock.
Therefore interlock function of the present invention is perfect, simple to operate, fail safe is high.
Accompanying drawing explanation
Fig. 1 is stereogram of the present invention;
Fig. 2 is hidden cabinet door of the present invention, part cabinet stereogram;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the A place enlarged drawing of Fig. 2;
Fig. 5 is the B place enlarged drawing of Fig. 3;
Fig. 6 is the stereogram of cabinet door;
Fig. 7 is the syndeton front view of earthed switch and the first mutual interlocking gear, the second procedure lock;
Fig. 8 is the right parallax stereogram of Fig. 7;
Fig. 9 is the left parallax stereogram of Fig. 7.
Embodiment
Below in conjunction with accompanying drawing and concrete execution mode, the present invention is described in further detail.
Shown in Fig. 1 to Fig. 9, a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed, comprise cabinet 1, isolating switch 2 is equipped with on the top of cabinet 1, vacuum circuit-breaker 3 is equipped with at the middle part of cabinet 1, earthed switch 4 is equipped with in the bottom of cabinet 1, and the top on front side of cabinet 1 is provided with isolator operation room 1a, and the bottom on front side of cabinet 1 is provided with cabinet door 5;
One operating sleeve 6 is connected with isolating switch 2 operating axis 21 and is in the 1a of isolator operation room, and isolator operation room 1a is built with the first procedure lock 7;
One operating axis 8 is contained on cabinet 1, it is corresponding with operating axis 8 that the front downside of cabinet 1 is provided with a handle hole 1b, the second procedure lock 9 is equipped with on described handle hole 1b limit, and operating axis 8 rotates clockwise and drives earthed switch 4 to close a floodgate, and operating axis 8 rotates counterclockwise and drives earthed switch 4 separating brake;
First procedure lock 7 and the second procedure lock 9 share one opening lock not from the key 10 of lock, after first procedure lock 7 takes out key 10, its dead bolt stretches out and blocks the through hole of described operating sleeve 6 front end, after second procedure lock 9 takes out key 10, its dead bolt stretches out and blocks described handle hole 1b on the downside of cabinet 1, first procedure lock 7 insert key 10 rotate after its dead bolt bounce back and depart from the through hole of described operating sleeve 6 front end, the second procedure lock 9 inserts key 10 and rotates afterwards its dead bolt and bounce back and depart from described handle hole 1b on the downside of cabinet 1;
The first mutual interlocking gear 20 is equipped with in the front side of cabinet 1, described first mutual interlocking gear 20 comprises the snap close 51 be contained in inside cabinet door 5, be contained in the first fanning strip 81 and the first limiting plate 82 on operating axis 8, the first support 201 cabinet 1 below operating axis 8 is equipped with, the latch hook 202 moved up and down first support 201 is equipped with, the gag lever post 821 of a L shape is fixed in the bottom of the first limiting plate 82, match with described snap close 51 in the front end of gag lever post 821, the first stage clip 83 applies reach power to the first limiting plate 82 operating axis 8 is equipped with, a vertical bearing pin 203 first support 201 is equipped with, the rear end of latch hook 202 is enclosed within bearing pin 203, the bottom of bearing pin 203 is equipped with the second stage clip 204 and is applied with the power of moving to latch hook 202, move after the front end that when cabinet door 5 is closed, described snap close 51 withstands L shape gag lever post 821 makes the first limiting plate 82, the rotation of the first fanning strip 81 is not interrupted, operating axis 8 rotates counterclockwise the first fanning strip 81 described in when driving earthed switch 4 separating brake and follows operating axis 8 rotation pressure latch hook 202 and make the front end of latch hook 202 hook described snap close 51, operating axis 8 rotates clockwise the first fanning strip 81 described in when driving earthed switch 4 to close a floodgate and departs from latch hook 202, latch hook 202 second stage clip 204 act under on move, the front end of latch hook 202 departs from described snap close 51, cabinet door 5 is opened rear described snap close 51 and is departed from L shape gag lever post 821, first limiting plate 82 is reach under the first stage clip 83 acts on, first limiting plate 82 front end limits the first fanning strip 81 and rotates, the rotation of operating axis 8 is and then limited,
Described first limiting plate 82 is L shape limiting plate;
Described operating axis 8 is fixed with the second cam 85, the second limiting plate 206 first support 201 is equipped with, match with the lower end of the dead bolt 91 of the second procedure lock 9 in one end of second limiting plate 206, the other end of the second limiting plate 206 matches with the second cam 85, when operating axis 8 rotates and earthed switch 4 is closed a floodgate, operating axis 8 drives the second cam 85 to withstand one end of the second limiting plate 206, second limiting plate 206 other end withstands dead bolt 91 and limits moving down of dead bolt 91, when operating axis 8 rotates and makes earthed switch 4 separating brake, operating axis 8 drives the second cam 85 to depart from one end of the second limiting plate 206, second limiting plate 206 removes the restriction to dead bolt 91.
Described cabinet door 5 both sides are below provided with multiple draw-in groove 52 from top to bottom, and on front side of cabinet 1, both sides are provided with multiple grab 1c from top to bottom, on multiple grab 1c that cabinet door 5 utilizes described multiple draw-in groove 52 to be plugged on described in cabinet 1.
Described earthed switch 4 is provided with ground connection rotating shaft 41, ground connection rotating shaft 41 is fixed the first connecting lever 411, and the free end described operating axis 8 being fixed with the second connecting lever 412, first connecting lever 411 is connected by first connecting rod 413 with the free end of the second connecting lever 412.
Described first fanning strip 81 is connected with operating axis 8 by the first cam 84, and the first fanning strip 81 is provided with fan groove 811, and a screw is fixed on the first cam 84 through fan groove 811 and also the first cam 84 and the first fanning strip 81 is clamped together.
Described first procedure lock 7 comprises bearing 71, the dead bolt 72 be contained on bearing 71, and bearing 71 is provided with the spliced eye 711 of key 10, and described second procedure lock 9 is identical with the first procedure lock 7 structure.
Described operating axis 8 is fixed with the 3rd cam 86, the outer peripheral face of the 3rd cam 86 is provided with an arc groove 861, first support 201 is provided with spacing preiection 205, and described arc groove 861 matches to limit the rotational angle that operating axis 8 rotates and reverse with described spacing preiection 205.
Described L shape gag lever post 821 is also equipped with back-moving spring 822.
Described isolator operation room 1a is built with the second mutual interlocking gear 30, described second mutual interlocking gear 30 comprises the four-cam 61 and the 5th cam 62 that are fixed on operating sleeve 6 outer peripheral face, four-cam 61 and the 5th cam 62 are circumferentially interspersed, second support 301 is set below operating sleeve 6, the first push rod 302 second support 301 is equipped with, second push rod 303 and a pull bar 304, first push rod 302, second push rod 303 and pull bar 304 be parallel to each other and with the axis perpendicular of operating sleeve 6, match with four-cam 61 and the 5th cam 62 respectively in the top of the first push rod 302 and the second push rod 303,
After second support 301, a rotating shaft 305 is set, the 3rd connecting lever 3051 is fixed in rotating shaft 305 one end, the other end fixes the 4th connecting lever, 3rd connecting lever 3051 swinging end is connected with the lower end of pull bar 304, the operating mechanism of vacuum circuit-breaker 3 is provided with combined floodgate axle 31, one end of combined floodgate axle 31 is fixed with the 5th connecting lever 32, the swinging end of the 5th connecting lever 32 is connected by second connecting rod 33 with the 4th connecting lever swinging end, and when vacuum circuit-breaker 3 closes a floodgate, the 5th connecting lever 32 pulls second connecting rod 33 to move down;
The operating mechanism of vacuum circuit-breaker 3 is also provided with trip shaft 34, one end of trip shaft 34 is fixed with the 6th connecting lever 35, the swinging end of the 6th connecting lever 35 is connected by third connecting rod 36 with the lower end of the second push rod 303, move down when the second push rod 303 top contacts with the 5th cam 62, then make trip shaft 34 turn to trip status by third connecting rod 36 and the 6th connecting lever 35;
A upper cover plate 3041 is fixed in the upper end of pull bar 304, and upper cover plate 3041 is in before operating sleeve 6;
Cabinet door 5 is fixed with a lock dog 53 to match with the lower end of the first push rod 302, when closing Over-The-Counter door 5, lock dog 53 matches with the lower end of the first push rod 302 and pulls the first push rod 302 to move down, when four-cam 61 withstands the first push rod 302 top, cabinet door 5 is inserted further locked for cabinet door 5 in the lower end of the first push rod 302;
Be equipped with between first push rod 302 and the second support 301 to be equipped with between the 4th stage clip 307, first pull bar 304 and the second support 301 between the 3rd stage clip 306, second push rod 303 and the second support 301 and the 5th stage clip 308 is housed.
Operating sleeve 6 outer peripheral face between four-cam 61 and the 5th cam 62 is also fixed with the 6th cam 63, second support 301 is also provided with the 3rd push rod 309, match with the 6th cam 63 in the upper end of the 3rd push rod 309, between 3rd push rod 309 and the second support 301, the 6th stage clip 310 is housed, an indicating arm 3091 is fixed at the middle part of the 3rd push rod 309, and it is outer and " combined floodgate " and " separating brake " direction board is housed that the second support 301 is stretched out in the front end of indicating arm 3091.
Vacuum circuit-breaker 3 is provided with motor-operating mechanism 3a, described operating sleeve 6 side is provided with the first travel switch 11, first travel switch 11 controls the power supply of described motor-operating mechanism 3a, described operating sleeve 6 outer peripheral face fixes a contact 64 match with the first travel switch 11, when operating sleeve 6 makes isolating switch 2 operating axis 21 turn to closing position, described contact 64 contacts with the first travel switch 11 and the power supply of described motor-operating mechanism 3a is energized;
Described first support 201 is equipped with the second travel switch 12, the middle part of described latch hook 202 is fixed a touch panel 2021 and is matched with the second travel switch 12, operating axis 8 rotates counterclockwise the first fanning strip 81 described in when driving earthed switch 4 separating brake and follows operating axis 8 rotation pressure latch hook 202, touch panel 2021 in the middle part of latch hook 202 depresses the second travel switch 12 makes the second travel switch connect, and the second travel switch 12 and the first travel switch 11 are in series.
The operation principle that the present embodiment mainly interlocks is as follows:
1, the first procedure lock 7 and the second procedure lock 9 share one opening lock not from the key 10 of lock, and when key 10 is on the first procedure lock 7, earthed switch 4 cannot operate, and when key 10 is on the second procedure lock 9, isolating switch 2 cannot operate; When operating axis 8 rotates and earthed switch 4 is closed a floodgate simultaneously, operating axis 8 drives the second cam 85 to withstand one end of the second limiting plate 206, second limiting plate 206 other end withstands dead bolt 91 and limits moving down of dead bolt 91, namely when earthed switch 4 closes a floodgate, key 10 cannot depart from the second procedure lock 9, first procedure lock 7 can not be opened, and isolating switch 2 cannot operate; Prevent earthed switch 4 mistiming of closing a floodgate from closing isolating switch 2 or closing isolating switch 2 mistiming live connection of ground wire;
2, operating axis 8 rotates counterclockwise the first fanning strip 81 described in when driving earthed switch 4 separating brake and follows operating axis 8 and rotate pressure latch hook 202 make the front end of latch hook 202 hook described snap close 51, and when therefore earthed switch 4 is in gate-dividing state, cabinet door 5 cannot be opened; Prevent mistakenly entering charged chamber;
3, earthed switch 4 closes a floodgate cabinet door 5 when opening, and described snap close 51 departs from L shape gag lever post 821, and described first limiting plate 82 is reach under the first stage clip 83 acts on, and described first limiting plate 82 front end limits the first fanning strip 81 and rotates; Therefore operating axis 8 can not operate, and prevents opening cabinet door 5 and carries out earthed switch 4 separating brake;
4, when vacuum circuit-breaker 3 closes a floodgate, isolating switch 2 is locked cannot operate; It pulls second connecting rod 33 to move down by the 5th connecting lever 32, second connecting rod 33 pulls pull bar 304 to move down by the 4th connecting lever, rotating shaft 305, the 3rd connecting lever 3051, the upper cover plate 3041 being fixed on pull bar 304 upper end moves down and just operating sleeve 6 front end is covered, operating sleeve 6 cannot operate, at this moment isolating switch 2 is locked, and prevents point isolating switch 2 by mistake;
5, the 2-in-1 lock of isolating switch, cabinet door 5 is locked cannot be opened; When the 2-in-1 lock of isolating switch, operating sleeve 6 rotates clockwise, and four-cam 61 withstands the top of the first push rod 302, and the first push rod 302 moves down, and cabinet door 5 is inserted further locked for cabinet door 5 in the lower end of the first push rod 302, and now cabinet door 5 is locked, and cannot open;
6, when cabinet door 5 is opened, isolating switch 2 is locked cannot be operated; Because of when now earthed switch 4 is in combined floodgate, key 10 cannot depart from the second procedure lock 9, first procedure lock 7 and cannot open, and isolating switch 2 just cannot operate;
7, during isolating switch 2 separating brake, vacuum circuit-breaker 3 is locked cannot close a floodgate; When isolating switch 2 separating brake, operating sleeve 6 rotates counterclockwise, 5th cam 62 withstands the upper end of the second push rod 303, second push rod 303 moves down, the lower end of the second push rod 303 just drives third connecting rod 36 to move down, third connecting rod drives trip shaft 34 to turn to trip status by the 6th connecting lever 35, and now the operating mechanism of vacuum circuit-breaker 3 cannot close a floodgate;
8, by being provided with the first travel switch 11 on described operating sleeve 6 side, the second travel switch 12 that the first support 210 is equipped with realizes electrical interlock with the motor-operating mechanism 3a on vacuum circuit-breaker 3.
The present embodiment power transmission order: close cabinet door 5, make earthed switch 4 separating brake, the second procedure lock 9 pins and takes out key 10, opens the second procedure lock 7, closes isolating switch 2, closes vacuum circuit-breaker 3.Power down sequence: point vacuum circuit-breaker 3, point isolating switch 2, pins the first procedure lock 7, takes out key 10, opens the second procedure lock, earthed switch 4 is closed a floodgate, now just can open cabinet door 5.
Below be only the present invention's preferred embodiment, those skilled in the art makes by claim the protection range that equivalent change all falls into this case.

Claims (10)

1. one kind is equipped with the switch cubicle of isolating switch, vacuum circuit-breaker and earthed switch, comprise cabinet, isolating switch is equipped with on the top of cabinet, vacuum circuit-breaker is equipped with at the middle part of cabinet, earthed switch is equipped with in the bottom of cabinet, top on front side of cabinet is provided with isolator operation room, and the bottom on front side of cabinet is provided with cabinet door, it is characterized in that:
One operating sleeve is connected with isolator operation axle and is in isolator operation indoor, and the first procedure lock is equipped with in isolator operation indoor;
One operating axis is contained on cabinet, and it is corresponding with operating axis that the front downside of cabinet is provided with a handle hole, and the second procedure lock is equipped with on described handle hole limit, and operating axis rotates clockwise and drives earthed switch to close a floodgate, and operating axis rotates counterclockwise drive grounding switch tripping;
First procedure lock and the second procedure lock share one opening lock not from the key of lock, after first procedure lock takes out key, its dead bolt stretches out and blocks the through hole of described operating sleeve front end, after second procedure lock takes out key, its dead bolt stretches out and blocks described handle hole on the downside of cabinet, after first procedure lock inserts key turns, its dead bolt bounces back and departs from the through hole of described operating sleeve front end, and after the second procedure lock inserts key turns, its dead bolt bounces back and departs from described handle hole on the downside of cabinet;
The first mutual interlocking gear is equipped with in the front side of cabinet, described first mutual interlocking gear comprises the snap close be contained in inside cabinet door, be contained in the first fanning strip on operating axis and the first limiting plate, the first support cabinet below operating axis is equipped with, the latch hook moved up and down first support is equipped with, the gag lever post of a L shape is fixed in the bottom of described first limiting plate, match with described snap close in the front end of gag lever post, the first stage clip applies reach power to described first limiting plate operating axis is equipped with, a vertical bearing pin first support is equipped with, the rear end of latch hook is enclosed within bearing pin, the bottom of bearing pin is equipped with the second stage clip and is applied with the power of moving to latch hook, move after the front end that when cabinet door is closed, described snap close withstands L shape gag lever post makes the first limiting plate, the rotation of the first fanning strip is not interrupted, operating axis rotates counterclockwise the first fanning strip described in when driving grounding switch tripping and follows operating axis rotation pressure latch hook and make the front end of latch hook hook described snap close, operating axis rotates clockwise the first fanning strip described in when driving earthed switch to close a floodgate and departs from latch hook, latch hook under the second stage clip effect on move, the front end of latch hook departs from described snap close, cabinet door is opened rear described snap close and is departed from L shape gag lever post, described first limiting plate moves forward under the first stage clip effect, described first limiting plate front end limits the first fanning strip and rotates,
Described operating axis is fixed with the second cam, the second limiting plate first support is equipped with, match with the lower end of the dead bolt of the second procedure lock in one end of second limiting plate, the other end of the second limiting plate matches with the second cam, when operating axis rotates and earthed switch is closed a floodgate, operating axis drives the second cam to withstand one end of the second limiting plate, the second limiting plate other end withstands moving down of dead bolt restriction dead bolt, when operating axis rotates and makes grounding switch tripping, operating axis drives one end of the second cam disengages second limiting plate, and the second limiting plate removes the restriction to dead bolt.
2. a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed according to claim 1, it is characterized in that: the both sides in described cabinet face are behind the door provided with multiple draw-in groove from top to bottom, on front side of cabinet, both sides are provided with multiple grab from top to bottom, on multiple grabs that cabinet door utilizes described multiple draw-in groove to be plugged on described in cabinet.
3. a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed according to claim 1, it is characterized in that: described earthed switch is provided with ground connection rotating shaft, ground connection rotating shaft is fixed the first connecting lever, described operating axis is fixed with the second connecting lever, the free end of the first connecting lever is connected by first connecting rod with the free end of the second connecting lever.
4. a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed according to claim 1, it is characterized in that: described first fanning strip is connected with operating axis by the first cam, first fanning strip is provided with fan groove, and a screw is fixed on the first cam through fan groove and also the first cam and the first fanning strip is clamped together.
5. a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed according to claim 1, it is characterized in that: described first procedure lock comprises bearing, key, pedestal mounted dead bolt, bearing is provided with the spliced eye of key, and described second procedure lock is identical with the first procedure lock structure.
6. a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed according to claim 1, it is characterized in that: described operating axis is fixed with the 3rd cam, the outer peripheral face of the 3rd cam is provided with an arc groove, first support is provided with spacing preiection, and described arc groove matches to limit the rotational angle that operating axis rotates and reverse with described spacing preiection.
7. a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed according to claim 1, is characterized in that: described L shape gag lever post is also equipped with back-moving spring.
8. the one according to any one of claim 1 to 7 is equipped with isolating switch, the switch cubicle of vacuum circuit-breaker and earthed switch, it is characterized in that: the second mutual interlocking gear is equipped with in described isolator operation indoor, described second mutual interlocking gear comprises the four-cam and the 5th cam that are fixed on operating sleeve outer peripheral face, four-cam and the 5th cam are circumferentially interspersed, second support is set below operating sleeve, the first push rod second support is equipped with, second push rod and a pull bar, first push rod, second push rod and pull bar be parallel to each other and with the axis perpendicular of operating sleeve, match with four-cam in the top of the first push rod, match with the 5th cam in the top of the second push rod,
After second support, a rotating shaft is set, the 3rd connecting lever is fixed in rotating shaft one end, the other end fixes the 4th connecting lever, 3rd connecting lever swinging end is connected with the lower end of pull bar, the operating mechanism of vacuum circuit-breaker is provided with combined floodgate axle, one end of combined floodgate axle is fixed with the 5th connecting lever, the swinging end of the 5th connecting lever is connected by second connecting rod with the 4th connecting lever swinging end, and when vacuum circuit-breaker closes a floodgate, the 5th connecting lever pulls second connecting rod to move down;
The operating mechanism of vacuum circuit-breaker is also provided with trip shaft, one end of trip shaft is fixed with the 6th connecting lever, the swinging end of the 6th connecting lever is connected by third connecting rod with the lower end of the second push rod, move down when the second push rod top and the 5th cam contact, then make trip shaft turn to trip status by third connecting rod and the 6th connecting lever;
A upper cover plate is fixed in the upper end of pull bar, and upper cover plate is in before operating sleeve;
Cabinet door is fixed with a lock dog to match with the lower end of the first push rod, when closing Over-The-Counter door, lock dog matches with the lower end of the first push rod and pulls the first push rod to move down, and when four-cam withstands the first push rod top, it is dead that the lower end of the first push rod inserts cabinet door knob cabinet door lock further;
3rd stage clip is housed between the first push rod and the second support, the 4th stage clip is housed between the second push rod and the second support, the 5th stage clip is housed between the first pull bar and the second support.
9. a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed according to claim 8, it is characterized in that: the operating sleeve outer peripheral face between four-cam and the 5th cam is also fixed with the 6th cam, second support is also provided with the 3rd push rod, match with the 6th cam in the upper end of the 3rd push rod, 6th stage clip is housed between the 3rd push rod and the second support, an indicating arm is fixed at the middle part of the 3rd push rod, and it is outer and " combined floodgate " and " separating brake " direction board is housed that the second support is stretched out in the front end of indicating arm.
10. a kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed according to claim 8, it is characterized in that: vacuum circuit-breaker is provided with motor-operating mechanism, described operating sleeve side is provided with the first travel switch, the power supply of motor-operating mechanism described in first stroke switch control rule, described operating sleeve outer peripheral face fixes a contact match with the first travel switch, when operating sleeve makes isolator operation axle turn to closing position, described contact contacts with the first travel switch and the power supply of described motor-operating mechanism is energized;
Described first support is equipped with the second travel switch, the middle part of described latch hook is fixed a touch panel and is matched with the second travel switch, operating axis rotates counterclockwise the first fanning strip described in when driving grounding switch tripping and follows operating axis rotation pressure latch hook, touch panel in the middle part of latch hook depresses the second travel switch makes the second travel switch connect, and the second travel switch and the first travel switch are in series.
CN201310396908.4A 2013-09-04 2013-09-04 A kind of switch cubicle that isolating switch, vacuum circuit-breaker and earthed switch are housed Active CN103441439B (en)

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CN106898959A (en) * 2017-03-28 2017-06-27 珠海市可利电气有限公司 A kind of compact air insulation power distribution cabinet based on grid safety screen
CN109256289A (en) * 2017-07-14 2019-01-22 通用电气公司 The lock set of switching device for electric power distribution system

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