CN102646543A - Interlocking device used for high-voltage switch equipment - Google Patents
Interlocking device used for high-voltage switch equipment Download PDFInfo
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- CN102646543A CN102646543A CN2012101236351A CN201210123635A CN102646543A CN 102646543 A CN102646543 A CN 102646543A CN 2012101236351 A CN2012101236351 A CN 2012101236351A CN 201210123635 A CN201210123635 A CN 201210123635A CN 102646543 A CN102646543 A CN 102646543A
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Abstract
The invention discloses an interlocking device used for high-voltage switch equipment. The interlocking device comprises an isolation switch operation mechanism and a circuit breaker on-off mechanism and also comprises a transmission mechanism, wherein one end of the transmission mechanism is connected with a shifting fork of the isolation switch operation mechanism, the other end of the transmission mechanism is arranged at the bottom of a circuit breaker and is connected with the circuit breaker on-off mechanism, and the transmission mechanism comprises a link mechanism arranged at the outer side of the circuit breaker and a lever mechanism arranged at the inner side of a circuit breaker. The interlocking device used for the high-voltage switch equipment is arranged at the bottom of the circuit breaker, and therefore, compared with the existing interlocking device, the interlocking device used for the high-voltage switch equipment is simple in structure, flexible in transmission, safety in use, reliable in interlocking and convenient in manufacturing, installation and debugging.
Description
Technical field
The invention belongs to the high-tension distribution equipment technical field, relate in particular to a kind of interlock of fixed high-voltage switch cubicle.
Background technology
Interlock between existing fixed high-voltage switch cubicle circuit breaker (mechanism and switch integrated) and the isolating switch mainly is to satisfy that the user can not break off or breaker open operation isolating switch by the disconnecting switch operation operating mechanism when breaker closing; When breaker open operation, the user can the disconnecting switch operation operating mechanism make circuit breaker when " maintenance position ", can closing by hand, when " disjunction locking position ", keep gate-dividing state.
Existing high-tension switch cabinet adopts dual mode mostly with interlock, and a kind of is with steel wire rope shift fork on the lock operation panel and circuit breaker tripping device to be connected together, i.e. the steel wire rope interlocking.Another kind utilizes the main shaft on the circuit breaker and is installed in the mode that the kinematic link of breaker mechanism box top links to each other with operation board on the lock operation panel, i.e. main shaft top interlocking.Wherein, steel wire rope interlocking is passive interlocking, and operating personnel are often improper or operation sequence mistaken because of operating physical force, are easy to make wire cable rupture, and interlock lost efficacy then.Main shaft top interlock is because it is installed in the breaker mechanism box top, and after circuit breaker and lock operation panel being installed in the switch cubicle, structural design is compact, and when the assembling and setting personnel installed this kind interlock, the space ten minutes was limited, is unfavorable for Installation and Debugging.And behind switch cubicle and the cabinet, if interlock damages, the difficulty of replacing is very big.For example; The disclosed fixed metal-enclosed high voltage switch-gear of Chinese patent document CN201758086U promptly belongs to the mode of main shaft top interlocking with safety interlock for overhead; It comprises isolation knife operating mechanism and import VD4 circuit-breaker switching on-off operating axis; Be provided with safety interlock between isolation knife operating mechanism and the import VD4 circuit-breaker switching on-off operating axis, wherein, safety interlock is: import VD4 circuit-breaker switching on-off operating axis is connected an end of round connecting rod; The other end of circle connecting rod is connected the end of lever connecting rod; The other end of lever connecting rod is arranged on an end that connects bent plate, and the other end that connects bent plate is connected with guide post, and guide post acts on the isolation knife operating mechanism handle.Drive the isolation knife operating mechanism confinement plate and freely slide up and down through its operating axis, circle connecting rod, lever connecting rod, connection bent plate during the divide-shut brake of the import VD4 circuit breaker of this kind safety interlock for overhead, realized each operating mechanism interlocking.But the kinematic link of this device is installed in the breaker mechanism box top, and its installing space is limited, is unfavorable for installing and maintenance.
For solving the problems of the technologies described above; Chinese patent document CN200959290Y discloses a kind of high pressure ring cabinet anti-misoperation mechanical interlocks; Comprise a high pressure ring cabinet cabinet and isolating switch, the vacuum circuit-breaker summation current transformer be located in the cabinet; Its circuit breaker side is provided with make progress vertically arranged dropout activity push rod and closed bite restrictor bar; The iron core of the release electromagnet of said dropout activity push rod and circuit breaker joins, and the closing locking isolating switch connecting lever of said closed bite restrictor bar and circuit breaker joins; The opposite side of said transmission levers is provided with the vertically arranged drive rod that makes progress, and this drive rod is connected with the isolating-switch locking handle through a crank.This interlock is simple in structure; But this interlock has following problem: 1. this interlock is only realized transmission through activation lever and a transmission levers, and the transmission underaction can have influence on the layout of functional unit; 2. this transmission mechanism can not be adjusted according to the size of cabinet; For dissimilar cabinets; Again the transmission requirement could be satisfied in the position of the length of design driven lever and transmission levers and balance pivot, and because the arm of force of this lever is longer, causes its driving force lower; For the switch cabinet that isolating switch and circuit breaker are separated by far away, the drawback of this interlock shows particularly evidently; In case design inadequately rationally the time, will cause closed bite restrictor bar and the dropout activity push rod can not reliable action; Since the iron core of the release electromagnet of its interlock and circuit breaker join; It can only realize electronic sub-switching operation; Can not realize mechanical separating brake; The joint defence rank of interlock is not high enough, so this interlock only is applicable to the terminal incoming line cabinets such as high pressure ring cabinet that capacity is less, security level required is low slightly, and the scope of application of this interlocking device is narrower.
Summary of the invention
For this reason, technical problem to be solved by this invention is the problem of the interlock transmission underaction of existing fixed high-voltage switch cubicle, and then a kind of interlock of high voltage switchgear of ensuring smooth transmission is provided.
For solving the problems of the technologies described above; High voltage switchgear of the present invention is used interlock; It comprises; Isolator operating mechanism, it comprises the operating grip of control isolating switch deciliter and is arranged at the inner shift fork of lock operation panel that said operating grip is fixedly connected through the rotating shaft that is arranged in said lock operation panel with said shift fork; Circuit breaker deciliter mechanism, it comprises combined floodgate axle and the combined floodgate bent plate of controlling breaker closing, and the dropout semiaxis and the dropout bent plate of control breaker open operation; Transmission mechanism, the one of which end is connected with the shift fork of said isolator operating mechanism, and the other end is connected with a circuit breaker deciliter mechanism; Said transmission mechanism comprises the linkage that is arranged at circuit breaker outside below and is arranged in the said circuit breaker and is positioned at the leverage of said circuit breaker bottom; Wherein, said leverage comprises: be arranged at respectively on the lever of balance pivot both sides, control the closed bite restrictor bar of said combined floodgate bent plate action and the dropout activity push rod of the said dropout bent plate action of control; Said linkage comprises: be fixed in the guide plate on the circuit breaker sidewall, be equipped with rotation axis on the said guide plate, be fixedly connected with respectively in the both sides of said rotation axis and drive connecting lever and interlock connecting lever; The said driving connecting lever other end is through being connected with said shift fork with its hinged drive rod; Said interlock connecting lever drives a fanning strip that is articulated on the support through the gangbar hinged with it and rotates; Said support is fixed on the diapire of said circuit breaker; The pushing tow position of corresponding said fanning strip also is equipped with movable push rod on the diapire of said circuit breaker, and the rotation of said fanning strip drives the flexible up and down of said movable push rod; Said movable push rod penetrates and pushes said leverage in the said circuit breaker.
Above-mentioned high voltage switchgear is with in the interlock, and said drive rod comprises: with the hinged lower contact of said driving connecting lever; The top connection that is fixedly connected with said shift fork; And the drive rod adjusting rod that is arranged at the said drive rod length of adjusting between said top connection and the said lower contact.
Above-mentioned high voltage switchgear is with in the interlock, and said gangbar comprises: the connecting lever joint hinged with said interlock connecting lever; The fanning strip joint hinged with said fanning strip; And the gangbar adjusting rod that is arranged at the said drive rod length of adjusting between said connecting lever joint and the said fanning strip joint.
Above-mentioned high voltage switchgear is with in the interlock; Said support comprises two parallel support plates and bridges at two connecting plates between the said support plate; Be provided with hinge between the said support plate; Said fanning strip is articulated on the said hinge, and said connecting plate is fixed on the said circuit breaker diapire, and said connecting plate is equipped with said movable push rod at the pushing tow position of the said fanning strip of correspondence.
Above-mentioned high voltage switchgear is with in the interlock, and said leverage comprises: be arranged at the supporting bracket that is used for support lever on the said circuit breaker diapire, said closed bite restrictor bar and said dropout activity push rod are articulated and connected with said lever respectively; The top of said closed bite restrictor bar forms draw-in groove, and said draw-in groove cooperates the said combined floodgate bent plate of control to move up and down with lock pin on being fixedly connected on said combined floodgate bent plate; The top of said dropout activity push rod forms the control connecting lever, and the upper surface that said control connecting lever directly acts on said dropout bent plate is controlled said dropout bent plate and moved up and down.
Above-mentioned high voltage switchgear also is provided with the sensitive switch of control circuit breaker disjunction with in the interlock in said circuit breaker, the closing circuit of said sensitive switch and said circuit breaker is electrically connected in series; Form the crimp perpendicular to the body of rod on the said closed bite restrictor bar, said sensitive switch is arranged at the upside of said crimp, and said crimp moves up and pushes said sensitive switch and make its disjunction, realizes electronic separating brake.
Above-mentioned high voltage switchgear is arranged with back-moving spring with in the interlock on the said closed bite restrictor bar.
Above-mentioned high voltage switchgear is provided with the roller that is fixedly connected with said combined floodgate bent plate with in the interlock in said circuit breaker, when said combined floodgate bent plate was in the bottom, said roller was pressed and is located on the said closed bite restrictor bar connecting lever.
Technique scheme of the present invention is compared prior art and is had the following advantages:
1. interlock of the present invention is installed on the circuit breaker bottom, and is simple in structure, and Installation and Debugging are convenient; Its transmission mechanism that adopts comprises the linkage that is arranged at circuit breaker outside below and is arranged in the said circuit breaker and is positioned at the leverage of said circuit breaker bottom; It is than the transmission mechanism of prior art, ensuring smooth transmission, and it can be according to different cabinet sizes; And the layout of the inner functional unit of cabinet is provided with the position of transmission mechanism, and do not influence the effect of cabinet functional unit.
2. in the linkage of the present invention, the length of drive rod and gangbar all can be regulated, and it can adapt to different cabinets regulates, and simultaneously, being provided with of different length can also be regulated the driving force that finally is delivered on the said leverage; The interlocking of having avoided the driving force deficiency to cause is unreliable.
3. the divide-shut brake of circuit breaker of the present invention is through closed bite restrictor bar control combined floodgate bent plate, the mechanical separating brake that dropout activity push rod control dropout bent plate is realized; Interlock of separating brake is safe in utilization, interlocking is reliable with respect to carrying out through electronic mode in the prior art for it; Further; The sensitive switch that can realize electronic divide-shut brake also is set on this interlock, and it can further improve the reliability of this interlock.
Description of drawings
For content of the present invention is more clearly understood, below according to a particular embodiment of the invention and combine accompanying drawing, the present invention is done further detailed explanation, wherein
Fig. 1 is the structural representation of high voltage switchgear of the present invention with the linkage of interlock;
Fig. 2 is the stereogram of high voltage switchgear of the present invention with the linkage of interlock;
Fig. 3 is the structural representation of high voltage switchgear of the present invention with the leverage of interlock;
Fig. 4 is the stereogram of closed bite restrictor bar among the present invention;
Fig. 5 is the graph of a relation of medium-height trestle of the present invention and fanning strip and movable push rod.
Reference numeral is expressed as among the figure:
The 1-guide plate, 2-drives connecting lever, the 3-connecting lever that links, 4 drive rods, 41-top connection, 42-drive rod adjusting rod, 43-lower contact; The 5-rotation axis, 6-gangbar, 61-fanning strip joint, 62-gangbar adjusting rod, 63-connecting lever joint, 7-fanning strip, 8-support; 81-support plate, 82-connecting plate, 83-hinge, the movable push rod of 9-, 10-close a floodgate spool, 11-combined floodgate bent plate, 12-dropout semiaxis; 13-dropout bent plate, 14-closed bite restrictor bar, 141-closed bite restrictor bar connecting lever, the 142-crimp, the 143-draw-in groove, 15-dropout activity push rod, 151-controls connecting lever; The 16-supporting bracket, 17-lock pin, 18-operating grip, 19-sensitive switch, 20-back-moving spring, 21-roller, 22-lever.
Embodiment
Fig. 1, Fig. 3 are that high voltage switchgear disclosed by the invention is used interlock, it comprise isolator operating mechanism, circuit breaker deciliter mechanism and be arranged at said isolator operating mechanism and said circuit breaker deciliter mechanism between transmission mechanism.
Said isolator operating mechanism comprises: be arranged at the operating grip 18 that lock operation panel outer end is used to control isolating switch deciliter; Also comprise being arranged at the inboard shift fork of said lock operation panel, said operating grip 18 is fixedly connected through the rotating shaft that is arranged in said lock operation panel with said shift fork.Said handle 18 drives said shift fork when rotating and rotates together.
Said circuit breaker deciliter mechanism comprises the combined floodgate axle 10 and combined floodgate bent plate 11 of controlling breaker closing, and the dropout semiaxis 12 and dropout bent plate 13 of control breaker open operation.Be arranged in 10 last times of said combined floodgate axle when said combined floodgate bent plate 11 moves up, this circuit breaker can not close a floodgate; When said combined floodgate bent plate 11 moved down, said circuit breaker can close a floodgate.Be arranged in 13 last times of said trip shaft when said dropout bent plate 13 moves down, this circuit breaker keeps gate-dividing state, and when dropout bent plate 13 moved up, this circuit breaker can separating brake.
Said transmission mechanism comprises the linkage that is arranged at circuit breaker outside below and is arranged in the said circuit breaker and is positioned at the leverage of said circuit breaker bottom.
Wherein, said leverage comprises the dropout activity push rod 15 that is arranged at closed bite restrictor bars 14 on the lever of balance pivot both sides, said combined floodgate bent plate 11 actions of control respectively and controls said dropout bent plate 13 actions.
As shown in Figure 2, said linkage comprises: be fixed in the guide plate 1 on the said circuit breaker sidewall, be equipped with rotation axis 5 on the said guide plate 1, be fixedly connected with respectively in the both sides of said rotation axis 5 and drive connecting lever 2 and interlock connecting lever 3.Said driving connecting lever 2 other ends are through being fixedly connected with said shift fork with its hinged drive rod 4; Said interlock connecting lever 3 drives a fanning strip 7 that is articulated on the support 8 through the gangbar hinged with it 6 and rotates; Said support 8 is fixed on the diapire of said circuit breaker; The pushing tow position of corresponding said fanning strip 7 also is equipped with movable push rod 9 on the diapire of said circuit breaker, and the rotation of said fanning strip 7 drives the flexible up and down of said movable push rod 9; Said movable push rod 9 penetrates and pushes said leverage in the said circuit breaker.
In the aforementioned link mechanism, said drive rod 4 comprises the lower contact 43 hinged with said driving connecting lever 2; The top connection 41 hinged with said isolator operating mechanism; And the drive rod adjusting rod 42 that is arranged between said top connection 41 and the said lower contact 43 and is threaded with said top connection 41 and said lower contact 43 respectively.
In the aforementioned link mechanism, said gangbar 6 comprises: the connecting lever joint 63 hinged with said interlock connecting lever 3; The fanning strip joint 61 hinged with said fanning strip 7; And be arranged between said connecting lever joint 63 and the said fanning strip joint 61 and the gangbar that is threaded with said connecting lever joint 63 and said fanning strip joint 61 is respectively regulated connecting rod 62.
As shown in Figure 5; In the present embodiment; Said support 8 comprises two parallel support plates 81 and bridges at two connecting plates 82 between the said support plate 81 that be provided with hinge 83 between the said support plate 81, said fanning strip 7 is articulated on the said hinge 83; Said connecting plate 82 is fixed on the said circuit breaker diapire, and said connecting plate 82 is equipped with said movable push rod 9 at the pushing tow position of the said fanning strip 7 of correspondence.
Like this, said drive rod 4 all can carry out length adjustment according to the cabinet of different model with said gangbar 6, this interlock applied widely, and adaptive capacity is strong.
As shown in Figure 3; Said leverage comprises: be arranged at the supporting bracket 16 on the said circuit breaker diapire; Said supporting bracket 16 is provided with fulcrum, is used for support lever 22, and said closed bite restrictor bar 14 is articulated and connected through the end of closed bite restrictor bar connecting lever 141 with said lever 22; Said dropout activity push rod 15 is articulated and connected with the other end of said lever 22; As shown in Figure 4, the top of said closed bite restrictor bar 14 forms draw-in groove 143, and said draw-in groove 143 cooperates with lock pin 17 on being fixedly connected on said combined floodgate bent plate 11 realizes moving up and down of said combined floodgate bent plate 11; The top of said dropout activity push rod 15 forms control connecting lever 151, and the upper surface that said control connecting lever 151 directly acts on said dropout bent plate 13 realizes that said dropout bent plate 13 moves up and down.
Preferably, be arranged with back-moving spring 20 on the said closed bite restrictor bar 14, when movable push rod 9 did not push said closed bite restrictor bar connecting lever 141 in the bottom, under the effect of said back-moving spring 20, said closed bite restrictor bar 14 fell.
In said circuit breaker, also be provided with the normally closed sensitive switch 19 of control circuit breaker disjunction, said sensitive switch 19 is electrically connected in series with said breaker closing loop; Form the crimp 142 perpendicular to the body of rod on the said closed bite restrictor bar 14, said sensitive switch 19 is arranged at the upside of said crimp 142, and said crimp 142 moves up and pushes said sensitive switch 19 and make its disjunction, realizes electronic separating brake.
In said circuit breaker, be provided with the roller 21 that is fixedly connected with said combined floodgate bent plate 11, when said combined floodgate bent plate 11 was in the bottom, said roller 21 was pressed and is located on the said closed bite restrictor bar connecting lever 141.
Interlock of the present invention is provided with " working position ", " maintenance position " and " disjunction locking position " third gear control bit, makes the interactive interlocked control of isolating switch and circuit breaker ability, carries out isolating switch branch, closing operation.Be specially:
When circuit breaker is in "on" position, when promptly interlock was in " working position ", said roller 21 was in lowering position; Its pressure is located on the said closed bite restrictor bar 14; Stopped that said closed bite restrictor bar 14 moves upward, promptly said transmission mechanism can not move, and the said operating grip 18 in the said isolator operating mechanism is stiff; This interlock can not make 18 dozens of said operating grips to " disjunction locking position ", and promptly this interlock can not make said circuit breaker beat to the separating brake position.Simultaneously, the said crimp 142 that takes shape in said closed bite restrictor bar 14 middle parts keeps at a certain distance away with said sensitive switch 19, realizes electric switch-on simultaneously.
When circuit breaker was in gate-dividing state, because said combined floodgate bent plate 11 is arranged on the said combined floodgate axle 10, said roller 21 also was in and lifts the position, and it has discharged said closed bite restrictor bar 14.When said operating grip 18 was allocated to " disjunction locking position ", shift fork drove said drive rod 4, under the effect of said guide plate 1; Said driving connecting lever 2 is 90 ° with said interlock connecting lever 3 angles, drives said fanning strip 7 actions through said gangbar 6 then, and then said movable push rod 9 is extended upwardly; Stroke is about 13mm, pushes the inner said leverage of said circuit breaker, and said locking combined floodgate 14 is extended upwardly; Said draw-in groove 143 on the said closed bite restrictor bar 14 blocks the lock pin 17 on the said combined floodgate bent plate 11, said combined floodgate bent plate 11 is remained on be arranged in the position of the said axle 10 that closes a floodgate, and said combined floodgate axle 10 can not rotate; Said circuit breaker can not close a floodgate, and the said dropout activity push rod 15 that is arranged at the fulcrum opposite side simultaneously is to pressing down, and said control connecting lever 151 directly acts on the upper surface of said dropout bent plate 13; Said dropout bent plate 13 moves down; Be arranged on the said dropout semiaxis 12, said dropout semiaxis 12 can not be rotated, said circuit breaker remains on gate-dividing state.Simultaneously, when said closed bite restrictor bar 14 moved up, the said crimp 142 that takes shape in said closed bite restrictor bar 14 middle parts moved up and pushes said sensitive switch 19 and realize that simultaneously the breaker closing loop breaks off.Like this, can make said circuit breaker can not carry out manual and/or electronic closing operation, guarantee the safety of isolator operation.When said operating grip 18 was allocated to " maintenance position ", shift fork drove said drive rod 4, under the effect of said guide plate 1; Said driving connecting lever 2 rotates with said interlock connecting lever 3 each other; Drive said fanning strip 7 actions through said gangbar 6 then, and then make said movable push rod 9 be in the bottom, with the inner said leverage of the circuit breaker segment distance of being separated by; Said closed bite restrictor bar 14 is in the bottom; Said draw-in groove 143 and said lock pin 17 segment distance of being separated by discharges said combined floodgate bent plate 11, and said circuit breaker can carry out manual breaking-closing operating.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to execution mode.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the invention.
Claims (8)
1. a high voltage switchgear is used interlock, it is characterized in that: it comprises,
Isolator operating mechanism, it comprises the operating grip (18) of control isolating switch deciliter and is arranged at the inner shift fork of lock operation panel that said operating grip (18) is fixedly connected through the rotating shaft that is arranged in said lock operation panel with said shift fork;
Circuit breaker deciliter mechanism, it comprises combined floodgate axle (10) and the combined floodgate bent plate (11) of controlling breaker closing, and the dropout semiaxis (12) and the dropout bent plate (13) of control breaker open operation;
Transmission mechanism, the one of which end is connected with the said shift fork of said isolator operating mechanism, and the other end is connected with a said circuit breaker deciliter mechanism; Said transmission mechanism comprises the linkage that is arranged at circuit breaker outside below and is arranged in the said circuit breaker and is positioned at the leverage of said circuit breaker bottom;
Wherein, said leverage comprises: the dropout activity push rod (15) that is arranged at closed bite restrictor bar (14) on the lever of balance pivot both sides, the said combined floodgate bent plate of control (11) action and the said dropout bent plate of control (13) action respectively;
Said linkage comprises: be fixed in the guide plate (1) on the circuit breaker sidewall, be equipped with rotation axis (5) on the said guide plate (1), be fixedly connected with respectively in the both sides of said rotation axis (5) and drive connecting lever (2) and interlock connecting lever (3); Said driving connecting lever (2) other end is through being connected with said shift fork with its hinged drive rod (4); Said interlock connecting lever (3) drives a fanning strip (7) that is articulated on the support (8) through the gangbar hinged with it (6) and rotates; Said support (8) is fixed on the diapire of said circuit breaker; The pushing tow position of corresponding said fanning strip (7) also is equipped with movable push rod (9) on the diapire of said circuit breaker, and the rotation of said fanning strip (7) drives the flexible up and down of said movable push rod (9); Said movable push rod (9) penetrates and pushes said leverage in the said circuit breaker.
2. high voltage switchgear according to claim 1 is used interlock, it is characterized in that: said drive rod (4) comprising:
The lower contact (43) hinged with said driving connecting lever (2);
The top connection (41) that is fixedly connected with said shift fork;
And the drive rod adjusting rod (42) that is arranged at adjusting said drive rod (4) length between said top connection (41) and the said lower contact (43).
3. high voltage switchgear according to claim 1 and 2 is used interlock, it is characterized in that: said gangbar (6) comprising:
The connecting lever joint (63) hinged with said interlock connecting lever (3);
The fanning strip joint (61) hinged with said fanning strip (7);
And the gangbar adjusting rod (62) that is arranged at adjusting said drive rod (6) length between said connecting lever joint (63) and the said fanning strip joint (61).
4. use interlock according to the arbitrary described high voltage switchgear of claim 1-3, it is characterized in that:
Said support (8) comprises two parallel support plates (81) and bridges at the connecting plate (82) between two said support plates (81); Be provided with hinge (83) between the said support plate (81); Said fanning strip (7) is articulated on the said hinge (83); Said connecting plate (82) is fixed on the said circuit breaker diapire, and said connecting plate (82) is equipped with said movable push rod (9) at the pushing tow position of the said fanning strip of correspondence (7).
5. use interlock according to the arbitrary described high voltage switchgear of claim 1-4, it is characterized in that:
Said leverage comprises: be arranged at the supporting bracket (16) that is used for support lever (22) on the said circuit breaker diapire, said closed bite restrictor bar (14) and said dropout activity push rod (15) are articulated and connected with said lever (22) respectively;
The top of said closed bite restrictor bar (14) forms draw-in groove (143), and said draw-in groove (143) cooperates the said combined floodgate bent plate of control (11) to move up and down with lock pin (17) on being fixedly connected on said combined floodgate bent plate (11); The top of said dropout activity push rod (15) forms control connecting lever (151), and the upper surface that said control connecting lever (151) directly acts on said dropout bent plate (13) is controlled said dropout bent plate (13) and moved up and down.
6. use interlock according to the arbitrary described high voltage switchgear of claim 1-5, it is characterized in that:
In said circuit breaker, also be provided with the normally closed sensitive switch (19) of control circuit breaker disjunction, said sensitive switch (19) is electrically connected in series with the closing circuit of said circuit breaker;
Form crimp (142) on the said closed bite restrictor bar (14) perpendicular to the body of rod; Said sensitive switch (19) is arranged at the upside of said crimp (142); Said crimp (142) moves up and pushes said sensitive switch (19) and make its disjunction, realizes electronic separating brake.
7. use interlock according to the arbitrary described high voltage switchgear of claim 1-6, it is characterized in that:
Be arranged with back-moving spring (20) on the said closed bite restrictor bar (14).
8. use interlock according to the arbitrary described high voltage switchgear of claim 1-7, it is characterized in that:
In said circuit breaker, be provided with the roller (21) that is fixedly connected with said combined floodgate bent plate (11), said combined floodgate bent plate (11) is when being in the bottom, and said roller (21) is pressed and is located on the said closed bite restrictor bar connecting lever (141).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210123635.1A CN102646543B (en) | 2012-04-25 | 2012-04-25 | Interlocking device used for high-voltage switch equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210123635.1A CN102646543B (en) | 2012-04-25 | 2012-04-25 | Interlocking device used for high-voltage switch equipment |
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| Publication Number | Publication Date |
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| CN102646543A true CN102646543A (en) | 2012-08-22 |
| CN102646543B CN102646543B (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210123635.1A Active CN102646543B (en) | 2012-04-25 | 2012-04-25 | Interlocking device used for high-voltage switch equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016041520A1 (en) * | 2014-09-18 | 2016-03-24 | 国家电网公司 | Operating mechanism and locking device thereof |
| CN112165070A (en) * | 2020-11-10 | 2021-01-01 | 广州科通达信息科技有限公司 | Over-current prevention device of high-voltage circuit breaker |
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| CN101425419A (en) * | 2007-10-30 | 2009-05-06 | 上海中科电气(集团)有限公司 | Conversion operation mechanism for high-voltage switch cabinet isolation switch |
| EP2256773A1 (en) * | 2008-03-28 | 2010-12-01 | Kabushiki Kaisha Toshiba | Switch device and operating mechanism for switch device |
| CN201758086U (en) * | 2010-07-20 | 2011-03-09 | 安徽鑫龙电器股份有限公司 | Safety interlocking mechanism for fixed metal closed high-voltage switching device |
| CN202549692U (en) * | 2012-04-25 | 2012-11-21 | 浙江临高电气实业有限公司 | Interlocking device for high-voltage switch equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016041520A1 (en) * | 2014-09-18 | 2016-03-24 | 国家电网公司 | Operating mechanism and locking device thereof |
| CN112165070A (en) * | 2020-11-10 | 2021-01-01 | 广州科通达信息科技有限公司 | Over-current prevention device of high-voltage circuit breaker |
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| Publication number | Publication date |
|---|---|
| CN102646543B (en) | 2014-12-31 |
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Denomination of invention: Interlocking devices for high voltage switchgear Effective date of registration: 20210630 Granted publication date: 20141231 Pledgee: Industrial and Commercial Bank of China Limited Linhai Branch Pledgor: ZHEJIANG LINGAO ELECTRICAL INDUSTRIAL Co.,Ltd. Registration number: Y2021330000763 |
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