CN102332365A - Vacuum breaker isolation device and anti-maloperation method thereof - Google Patents
Vacuum breaker isolation device and anti-maloperation method thereof Download PDFInfo
- Publication number
- CN102332365A CN102332365A CN201110289397A CN201110289397A CN102332365A CN 102332365 A CN102332365 A CN 102332365A CN 201110289397 A CN201110289397 A CN 201110289397A CN 201110289397 A CN201110289397 A CN 201110289397A CN 102332365 A CN102332365 A CN 102332365A
- Authority
- CN
- China
- Prior art keywords
- breaker
- cross bar
- main shaft
- isolating switch
- open machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to a vacuum breaker isolation device and an anti-maloperation method thereof. The vacuum breaker isolation device comprises a vacuum circuit breaker (6), an isolation switch (4) and an interlocking device, wherein the interlocking device comprises a buffer mechanism for absorbing the acting force exerted on a circuit breaker spindle (12) in a breaker on-off mechanism due to maloperation and protecting the circuit breaker spindle (12). The vacuum breaker isolation device and the anti-maloperation method thereof are provided by the invention, so that the impact of the acting force due to maloperation on the vacuum circuit breaker spindle is greatly reduced, the normal work of the vacuum circuit breaker and the isolation switch can be ensured, and the sealing effect of the SF 6 vacuum circuit breaker can be ensured.
Description
Technical field
The present invention relates to technical field of electricity, especially a kind of vacuum circuit-breaker xegregating unit and method for preventing misoperation thereof.
Background technology
Vacuum circuit-breaker is meant that the dielectric in contact gap all is the circuit breaker of high vacuum behind arc-extinguishing medium and the arc extinguishing.Vacuum circuit-breaker have volume little, in light weight, be applicable to the advantage that frequent operation, arc extinguishing need not overhaul, in power distribution network, use comparatively universal.
As everyone knows, vacuum circuit-breaker in use need cooperate with isolating switch, behind separating brake, sets up reliable clearance for insulation, the equipment or the circuit of needs maintenance is separated with a tangible cut-off point with power supply, with the safety of assurance maintainer and equipment.For volume, the saving space that reduces integral device; A kind of band isolated vacuum breaker (being called the vacuum circuit-breaker xegregating unit) with vacuum circuit-breaker and the design of isolating switch one has appearred in the prior art; This equipment must be guaranteed when the vacuum circuit-breaker "on" position; Isolating switch can not separating brake, and only when the vacuum circuit-breaker separating brake, isolating switch just can be operated (separating brake or combined floodgate).
In order to prevent misoperation, the interlock that prevents misoperation need be set between vacuum circuit-breaker and isolating switch.As disclosing Mechanically programm's interlock of a kind of outdoor circuit breaker and isolating switch combiner among the Chinese patent document CN2935448Y; The fixed head of this device is sleeved on the isolating switch main shaft; Outside the position of isolating switch main shaft, be set with fanning strip near fixed head; Fixed head is being provided with long arc-shaped holes near the fanning strip lower right, is hinged with L shaped connecting lever in the long arc-shaped holes lower right.L shaped connecting lever one end is provided with a pin, can in long arc-shaped holes, slide, and the other end has slotted hole.Big connecting lever is arranged on the circuit breaker main shaft, on the big connecting lever bearing pin is arranged, hinged with L shaped connecting lever.During the circuit breaker action, the circuit breaker main shaft will rotate an angle, and the big connecting lever that is equipped with on the main shaft rotates simultaneously, and the bearing pin on the big connecting lever is stirred and is installed in L shaped connecting lever on the fixed head, make pin and fanning strip form strict procedure operation relation.When misoperation occurring, will stop the carrying out of operation by pin, and operating physical force will be transferred on the fixed head.
But if misoperation appears in isolating switch in the vacuum circuit-breaker making process, the fanning strip of above-mentioned Mechanically programm interlock will bump against with pin, and fanning strip and pin are stuck each other, and circuit breaker and isolating switch be operate as normal more all; And; Though the active force that produces part can be transferred on the fixed head; But the residue active force will finally act on the circuit breaker main shaft through L shaped connecting lever and big connecting lever, when this active force is bigger, still can exert an influence to the circuit breaker main shaft; When serious even can cause the circuit breaker spindle deformation, influence the useful life of circuit breaker.In addition, for SF
6Vacuum circuit-breaker (SF
6Be full of SF in the casing of vacuum circuit-breaker
6Gas; The air-tightness of this casing requires very high); The position of passing the box of the circuit breaker body sidewall at interlock can be provided with sealing device, if adopt existing interlock, in case receive serious external force effect; The sealing effectiveness of interlock and box of the circuit breaker body sidewall will be affected, and can cause SF when serious
6Gas leakage, pollutant atmosphere.
Summary of the invention
If technical problem to be solved by this invention is in the prior art that misoperation appears in isolating switch in the vacuum circuit-breaker making process, the vacuum circuit-breaker main shaft will receive the external force effect, and then have influence on the operate as normal of vacuum circuit-breaker and isolating switch, for SF
6Vacuum circuit-breaker also can influence the technical problem of its sealing property, and provide a kind of reduce greatly since the active force that misoperation produces to the influence of vacuum circuit-breaker main shaft, guarantee that vacuum circuit-breaker and isolating switch can operate as normal, for SF
6Vacuum circuit-breaker can also be guaranteed the vacuum circuit-breaker xegregating unit and the method for preventing misoperation thereof of its sealing effectiveness.
For solving the problems of the technologies described above, the present invention realizes through following technical scheme:
A kind of vacuum circuit-breaker xegregating unit comprises
Vacuum circuit-breaker, its box house is provided with breaker close/open machine;
Isolating switch, the said casing that is fixed on said vacuum circuit-breaker is outside, and said isolating switch has the isolating switch close/open machine;
Interlock is arranged between said breaker close/open machine and the said isolating switch close/open machine, makes said breaker close/open machine and the interlocking/release of said isolating switch close/open machine;
Said interlock comprises the active force that is used for absorbing said breaker close/open machine circuit breaker main shaft and receives owing to misoperation, the buffer gear of the said circuit breaker main shaft of protection.
In the above-mentioned vacuum circuit-breaker xegregating unit, said interlock comprises the trace with said circuit breaker main shaft interlock, and the end that said trace passes said casing cooperates realization interlocking/release through said buffer gear with said isolating switch close/open machine.
In the above-mentioned vacuum circuit-breaker xegregating unit, said trace is horizontally disposed with and can be around its axial rotation under the drive of said circuit breaker main shaft; Said buffer gear comprises connecting rod, cross bar and flexible member;
Said cross bar level frame is located on two supporting brackets of fixing with said casing; The length direction of said cross bar is vertical with the length direction of said trace; Said cross bar can be in the support lower edge of said supporting bracket the length direction of said cross bar slide, the end that said cross bar stretches out said supporting bracket is suitable for said isolating switch close/open machine locking/unlocking;
Said flexible member is set on the said cross bar and between two said supporting brackets, said cross bar is provided with limiting component, and it is spacing to it near an end of said isolating switch close/open machine to be used to prop up said flexible member;
Said connecting rod vertically is provided with; Its lower end is fixedly connected with the end that said trace stretches out said casing; Under the drive of said trace; Said connecting rod can be in perpendicular towards near/away from the direction reciprocally swinging of said isolating switch close/open machine, the upper end of said connecting rod is suitable for contact with said flexible member and the direction of the said isolating switch close/open machine of court applies active force to said flexible member.
In the above-mentioned vacuum circuit-breaker xegregating unit, the upper end of said connecting rod is the fork-shaped that opening makes progress; Said limiting component is a limited bolt, and said limited bolt is arranged on said cross bar between two said supporting brackets and near the position of said isolating switch close/open machine; Said cross bar is provided with first baffle plate, second baffle and said limited bolt from its unlocked position to its latched position along its length direction; Said flexible member is arranged between said first baffle plate and the said second baffle; Said first baffle plate and said second baffle can slide on said cross bar, and said second baffle contacts the back with said limited bolt limited; The upper end of said connecting rod is suitable for being inserted in the side of said first baffle plate away from said isolating switch close/open machine, and said connecting rod applies active force through promoting said first baffle plate to said flexible member, and the upper end of said connecting rod does not contact with said cross bar.
In the above-mentioned vacuum circuit-breaker xegregating unit, form installing hole on the said supporting bracket, said installing hole inwall is provided with antirust sleeve, and said cross bar can slide along its length direction in said installing hole.
In the above-mentioned vacuum circuit-breaker xegregating unit, the end of said trace in said casing has guide finger, and said guide finger is arranged on the cylinder of said trace and the radially setting of the said trace in axial edge of said guide finger; Said circuit breaker main shaft is horizontally disposed with and is parallel with said cross bar; One end of said circuit breaker main shaft is fixedly connected with connecting lever; Plane, said connecting lever place is vertical with the length direction of said circuit breaker main shaft; Said connecting lever can be under the drive of said circuit breaker main shaft in perpendicular the tie point with said connecting lever and said circuit breaker main shaft be that rotate at the center; The other end of said connecting lever forms pilot hole, and said pilot hole is suitable for cooperating with said guide finger, to convert said connecting lever into said trace around its axial rotation in the rotation of perpendicular.
In the above-mentioned vacuum circuit-breaker xegregating unit; Said isolating switch close/open machine comprises the limiting plate that is arranged on isolation main shaft one end and links with said isolation main shaft; Said isolation main shaft is horizontally disposed with and is parallel with said cross bar; Plane, said limiting plate place is vertical with the length direction of said isolation main shaft, and said cross bar is suitable for being stuck in the stopper slot of said limiting plate with said isolation spindle lock towards an end of said isolating switch close/open machine.
In the above-mentioned vacuum circuit-breaker xegregating unit, said vacuum circuit-breaker is SF
6Vacuum circuit-breaker, the position that said interlock passes said wall box is provided with sealing device.
A kind of method for preventing misoperation that utilizes above-mentioned vacuum circuit-breaker xegregating unit; In the making process of vacuum circuit-breaker; Said circuit breaker main shaft rotates; Drive trace and rotate towards isolating switch close/open machine direction, connecting rod is swung towards the direction near said isolating switch close/open machine in perpendicular under the effect of said trace, and then flexible member is applied active force; Limited, compression that said flexible member contacts with limited bolt, and then promote said cross bar to moving near said isolating switch close/open machine direction; If isolating switch generation misoperation this moment; The isolation main shaft of said isolating switch close/open machine is in the position between separating brake and the combined floodgate; With the plane of the limiting plate of said isolation main shaft interlock facing to said cross bar, the end of said cross bar will bump against on the plane of said limiting plate and the direct of travel of said cross bar is blocked by the plane of said limiting plate, and this moment, said vacuum circuit-breaker still closed a floodgate; Said circuit breaker main shaft is rotated further; Said connecting rod continues said flexible member is applied active force, because said cross bar can not be pushed the stressed further compression of said flexible member again; Absorb the active force of said connecting rod and the impact on said cross bar and said limiting plate plane, thereby protect said circuit breaker main shaft.
In the above-mentioned method for preventing misoperation, said flexible member through first baffle plate contact with said limited bolt limited, compress, and then promote said cross bar and move to said isolating switch close/open machine direction.
Technique scheme of the present invention is compared prior art and is had the following advantages:
1. vacuum circuit-breaker xegregating unit provided by the invention and method for preventing misoperation thereof; Vacuum circuit-breaker and the design of isolating switch one; Have interlock, compared with prior art, in interlock, be provided with buffer gear; This buffer gear can absorb the active force that the circuit breaker main shaft receives owing to misoperation in the breaker close/open machine effectively; The protective circuit breaker main shaft, greatly reduce since the active force that misoperation produces to the influence of circuit breaker main shaft, thereby guarantee vacuum circuit-breaker and isolating switch ability operate as normal.
2. vacuum circuit-breaker xegregating unit provided by the invention and method for preventing misoperation thereof are being applied to SF
6In the time of in the vacuum circuit-breaker; Because interlock can effectively absorb the active force that the circuit breaker main shaft receives owing to misoperation in the breaker close/open machine; Reduced because misoperation to the influence of circuit breaker main shaft, makes circuit breaker main shaft and wall box can keep sealing, effectively prevented SF
6Gas leakage, thus its overall sealing performance guaranteed.
3. vacuum circuit-breaker xegregating unit provided by the invention and method for preventing misoperation thereof, wherein interlock comprises trace, buffer gear comprises connecting rod, cross bar and flexible member; When isolating switch generation misoperation, promptly the isolation main shaft of isolating switch close/open machine be in separating brake and close a floodgate between the position, with the plane of the limiting plate of isolating the main shaft interlock facing to cross bar; The end of cross bar will bump against on the plane of limiting plate and the cross bar direct of travel blocks the plane of limited plate; And vacuum circuit-breaker is still closing a floodgate, and the circuit breaker main shaft is rotated further, and cross bar continues flexible member is applied active force; Because cross bar can not be pushed again; Flexible member receives force compresses, absorbs the active force of connecting rod and the impact on cross bar and limiting plate plane, thus the protective circuit breaker main shaft.Above-mentioned design is ingenious rationally, does not have at xegregating unit under the situation of opening and closing in place, and the setting of flexible member makes trace and circuit breaker main shaft all obtain fine protection, guarantees its useful life, the misoperation active force is dropped to the influence of circuit breaker main shaft minimum, for SF
6Vacuum circuit-breaker can also guarantee its integral sealing effect.
4. vacuum circuit-breaker xegregating unit provided by the invention and method for preventing misoperation thereof, wherein the upper end of connecting rod is designed to the fork-shaped that opening makes progress, and makes not contact between connecting rod and the cross bar; Interact and only produce through the limiting component that is provided with on elastomeric element and the cross bar; This is because the active force that produces when misoperation when very big, and cross bar might deform because of receiving impulsive force, but does not contact owing between connecting rod and the cross bar; Even if cross bar generation moderate finite deformation; Also can produce any active force to connecting rod hardly, also just can not exert an influence the circuit breaker main shaft, thus the useful life of having guaranteed the circuit breaker main shaft.
5. vacuum circuit-breaker xegregating unit provided by the invention and method for preventing misoperation thereof; Wherein in the installing hole of supporting bracket, be provided with antirust sleeve; Cross bar can slide in antirust sleeve, can guarantee cross bar reciprocating motion and can rust corrosion in installing hole for a long time, has guaranteed the useful life of cross bar.
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 front view of vacuum circuit-breaker xegregating unit of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the right view of Fig. 1;
Fig. 4 is an A part enlarged drawing among Fig. 1;
Fig. 5 is a B part enlarged drawing among Fig. 2;
Fig. 6 is a C part enlarged drawing among Fig. 3.
Reference numeral is expressed as among the figure: 1-guide finger, 2-trace, 3-casing, 4-isolating switch, 5-connecting rod; The 6-vacuum circuit-breaker, 7-supporting bracket, 8-connecting lever, 9-cross bar, 10-first baffle plate; The 11-limited bolt, 12-circuit breaker main shaft, 13-antirust sleeve, 14 limiting plates, 15-second baffle; The 16-pilot hole, 17-isolates main shaft, 18-elastomeric element, 19-the 3rd baffle plate, 20-the 4th baffle plate.
Embodiment
Shown in Fig. 1-3, be the preferred embodiment of vacuum circuit-breaker xegregating unit of the present invention.Comprise vacuum circuit-breaker 6, isolating switch 4 and interlock at said vacuum circuit-breaker xegregating unit.In the present embodiment, said vacuum circuit-breaker 6 is SF
6Vacuum circuit-breaker.
Be provided with breaker close/open machine in the casing 3 of said vacuum circuit-breaker 6, said breaker close/open machine comprises horizontally disposed circuit breaker main shaft 12, and the rotation of said circuit breaker main shaft 12 is closed a floodgate or separating brake said vacuum circuit-breaker 6.
Said isolating switch 4 is fixed on said casing 3 outsides of said vacuum circuit-breaker 6; Said isolating switch 4 comprises the isolating switch close/open machine; Said isolating switch close/open machine comprises horizontally disposed isolation main shaft 17 and limiting plate 14, and the rotation of said isolation main shaft 17 is closed a floodgate or separating brake said isolating switch 4.Said limiting plate 14 is arranged on an end of said isolation main shaft 17 and links with said isolation main shaft 17, and plane, said limiting plate 14 place is vertical with the length direction of said isolation main shaft 17.
Said interlock is arranged between said breaker close/open machine and the said isolating switch close/open machine, makes said breaker close/open machine and the interlocking/release of said isolating switch close/open machine.Because said vacuum circuit-breaker 6 is SF
6Therefore vacuum circuit-breaker is provided with sealing device in the position that said interlock passes said casing 3 sidewalls, and said sealing device can be selected device for sealing magnetic fluid for use.Said interlock comprises connecting lever 8, trace 2 and buffer gear.
Said connecting lever 8 is fixedly connected with an end of said circuit breaker main shaft 12; Plane, said connecting lever 8 place is vertical with the length direction of said circuit breaker main shaft 12; Said connecting lever 8 can be under the drive of said circuit breaker main shaft 12 in perpendicular the tie point with said connecting lever 8 and said circuit breaker main shaft 12 be that rotate at the center; The other end of said connecting lever 8 forms pilot hole 16, and said pilot hole 16 is a slotted hole.
Said trace 2 is horizontally disposed with and passes said casing 3; Said trace 2 and said circuit breaker main shaft 12 interlocks; Said trace 2 can be around its axial rotation under the drive of said circuit breaker main shaft 12, and the end that said trace 2 passes said casing 3 cooperates realization interlocking/release through said buffer gear with said isolating switch close/open machine.The end of said trace 2 in said casing 3 has guide finger 1; Said guide finger 1 is arranged on the cylinder of said trace 2 and the radially setting of the said trace 2 in axial edge of said guide finger 1; Said guide finger 1 is suitable for cooperating with said pilot hole 16, to convert said connecting lever 8 into said trace 2 around its axial rotation in the rotation of perpendicular.
Said buffer gear is used to absorb the active force that said circuit breaker main shaft 12 receives owing to misoperation, thereby protects said circuit breaker main shaft 12.Said buffer gear comprises connecting rod 5, cross bar 9 and flexible member 18.Said in the present embodiment flexible member 18 is a spring.
Said cross bar 9 level frames are located on two supporting brackets 7 of fixing with said casing 3; Said cross bar 9 and said circuit breaker main shaft 12, said isolation main shaft 17 are parallel; Said cross bar 9 can be in the support lower edge of said supporting bracket 7 length direction of said cross bar 9 slide, the length direction of said cross bar 9 is vertical with the length direction of said trace 2.Form installing hole on the said supporting bracket 7; The inwall of said installing hole is provided with antirust sleeve 13; Said antirust sleeve 13 is fixed on the said supporting bracket 7 through nut; In the present embodiment, the material of said antirust sleeve 13 is a stainless steel, and said cross bar 9 can slide along its length direction in said installing hole.The end that said cross bar 9 stretches out said supporting bracket 7 is suitable for said isolating switch close/open machine locking/unlocking, and promptly said cross bar 9 is suitable for being stuck in the stopper slot of said limiting plate 14 with said isolation main shaft 17 lockings towards an end of said isolating switch close/open machine.Said flexible member 18 is set on the said cross bar 9 and between two said supporting brackets 7; Said cross bar 9 is provided with limiting component; Being used to prop up said flexible member 18 carries out spacing near an end of said isolating switch close/open machine to it; Said in the present embodiment limiting component is a limited bolt 11, and said limited bolt 11 is arranged on said cross bar 9 between two said supporting brackets 7 and near the position of said isolating switch close/open machine.Said cross bar 9 is provided with first baffle plate 10, second baffle 15 and said limited bolt 11 from its unlocked position to its latched position along its length direction, and said first baffle plate 10 can slide on said cross bar 9 with said the 2nd baffle plate 15; Said flexible member 18 is between said first baffle plate 10 and second baffle 15, and said second baffle 15 contacts the back with said limited bolt 11 limited.
Said connecting rod 5 vertically is provided with; Its lower end is fixedly connected with the end that said trace 2 stretches out casing 3; Under the drive of said trace 2; Said connecting rod 5 can be in perpendicular towards near/away from the direction reciprocally swinging of said isolating switch close/open machine, the upper end of said connecting rod 5 is suitable for contact with said flexible member 18 and the direction of the said isolating switch close/open machine of court applies active force to said flexible member 18.In the present embodiment; The upper end of said connecting rod 5 is the fork-shaped that opening makes progress; Its upper end is suitable for being inserted in the side of said first baffle plate 10 away from said isolating switch close/open machine, and the upper end of said connecting rod 5 does not contact with said cross bar 9, and said connecting rod 5 applies active force through promoting 10 pairs of said flexible members 18 of said first baffle plate; Said second baffle 15 contact with said limited bolt 11 limited after, said flexible member 18 compressions under the motive force effect of said connecting rod 5.
In the present invention; The latched position of said cross bar 9 is meant: in the vacuum circuit-breaker making process; Said cross bar 9 moves to said isolating switch close/open machine direction; And then insert in the said stopper slot of said limiting plate 14 said isolation main shaft 17 lockings, this moment, said cross bar 9 residing positions were the latched position of said cross bar 9.At this moment, said isolation main shaft 17 can not be operated.The unlocked position of said cross bar 9 is meant: in vacuum circuit-breaker separating brake process, said cross bar 9 withdraws from the said stopper slot of said limiting plate 14, and with said isolation main shaft 17 releases, this moment, said cross bar 9 residing positions were the unlocked position of said cross bar 9.At this moment, said isolation main shaft 17 can be operated.
The course of work of vacuum circuit-breaker xegregating unit according to the invention is narrated as follows:
(1) under the normal operation; In the vacuum circuit-breaker making process; Said circuit breaker main shaft 12 rotates, and said connecting lever 8 is that upwards rotate in perpendicular at the center with the tie point of said circuit breaker main shaft 12, drives said trace 2 and rotates towards the direction of said isolating switch close/open machine; Said connecting rod 5 is swung towards the direction near said isolating switch close/open machine in perpendicular under the effect of said trace 2; And then promote said first baffle plate 10 and move towards the direction near said isolating switch close/open machine, 10 pairs of said flexible members 18 of said first baffle plate apply active force, and said flexible member 18 and said second baffle 15 are to moving near said isolating switch close/open machine direction; When said second baffle 15 with limited after said limited bolt 11 contacts; This moment, said cross bar 9 was pushed, and said circuit breaker main shaft 12 continues to close a floodgate, and said second baffle 15 continues to apply motive force; Said flexible member 18 continues stressed (may compress); And then drive said cross bar 9 and continue to moving near said isolating switch close/open machine direction, be stuck in the said stopper slot of said limiting plate 14 said isolation main shaft 17 lockings towards an end of said isolating switch close/open machine until said cross bar 9, so far accomplished the interlocking of the said vacuum circuit-breaker 6 of making process with said isolating switch 4.
(2) under the normal operation; In vacuum circuit-breaker separating brake process; Said circuit breaker main shaft 12 rotates, and said connecting lever 8 is that rotate downwards in perpendicular at the center with the tie point of said circuit breaker main shaft 12, drives said trace 2 towards the direction rotation of said isolating switch close/open machine dorsad; Said connecting rod 5 is swung towards the direction away from said isolating switch close/open machine in perpendicular under the effect of said trace 2; The active force that is applied on the said elasticity original paper 18 reduces final disappearance gradually, and said elasticity original paper 18 restores gradually, and said cross bar 9 withdraws from from the said stopper slot of said limiting plate 14 under the restoring force effect of said flexible member 18; To said isolation main shaft 17 releases, so far accomplished of the release of the said vacuum circuit-breaker 6 of separating brake process with said isolating switch 4.
(3) in the vacuum circuit-breaker making process misoperation appears
Vacuum circuit-breaker begins to close a floodgate; Said circuit breaker main shaft 12 rotates; Said connecting lever 8 is that upwards rotate in perpendicular at the center with the tie point of said circuit breaker main shaft 12; Drive said trace 2 and rotate towards the direction of said isolating switch close/open machine, said connecting rod 5 under the effect of said trace 2 in perpendicular towards direction swing near said isolating switch close/open machine, and then promote said first baffle plate 10 and move towards direction near said isolating switch close/open machine; 10 pairs of said flexible members 18 of said first baffle plate apply active force; Said flexible member 18 and said second baffle 15 be to moving near said isolating switch close/open machine direction, when said second baffle 15 with limited after said limited bolt 11 contacts, said cross bar 9 is pushed at this moment; Said circuit breaker main shaft 12 continues to close a floodgate; Said second baffle 15 continues to apply motive force, and said flexible member 18 continues to receive force compresses (may compress), and then drives said cross bar 9 continuation to moving near said isolating switch close/open machine direction.If isolating switch generation misoperation this moment, said isolation main shaft 17 be in separating brake and close a floodgate between the position, with the plane of the said limiting plate 14 of said isolation main shaft 17 interlocks facing to said cross bar 9; The end of said cross bar 9 will bump against on the plane of said limiting plate 14; The direct of travel of said cross bar 9 will be blocked by the plane of said limiting plate 14, and this moment, said vacuum circuit-breaker 6 still closed a floodgate, and said circuit breaker main shaft 12 is rotated further; Said connecting rod 5 continues said flexible member 18 is applied active force; Said cross bar 9 can not be pushed again, because said cross bar 9 can not be pushed again, said flexible member 18 further receives force compresses; Thereby absorb the active force of said connecting rod 5 and the impact on said cross bar 9 and said limiting plate 14 planes, thereby protect said circuit breaker main shaft 12.
In other embodiments; Said limiting component also can be second baffle 15; Said second baffle 15 is fixed on the said cross bar 9; Under the thrust of said connecting rod 5, said flexible member 18 contacts with said second baffle 15 and then is limited, drives said cross bar 9 to moving near said isolating switch close/open machine direction.
In other embodiments, the 3rd subsequent use baffle plate 19 and the 4th baffle plate 20 can be set in addition also on the said cross bar 9, replacement is used when said first baffle plate 10 and/or 15 damages of said second baffle, guarantees the operate as normal of buffer gear.
In other embodiments, also can select material for use is the antirust sleeve 13 of copper.
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 (10)
1. a vacuum circuit-breaker xegregating unit comprises
Vacuum circuit-breaker (6), its casing (3) inside is provided with breaker close/open machine;
Isolating switch (4) is fixed on said casing (3) outside of said vacuum circuit-breaker (6), and said isolating switch (4) has the isolating switch close/open machine;
Interlock is arranged between said breaker close/open machine and the said isolating switch close/open machine, makes said breaker close/open machine and the interlocking/release of said isolating switch close/open machine;
It is characterized in that: said interlock comprises the active force that is used for absorbing said breaker close/open machine circuit breaker main shaft (12) and receives owing to misoperation, the buffer gear of the said circuit breaker main shaft of protection (12).
2. vacuum circuit-breaker xegregating unit according to claim 1; It is characterized in that: said interlock comprises the trace (2) with said circuit breaker main shaft (12) interlock, and the end that said trace (2) passes said casing (3) cooperates realization interlocking/release through said buffer gear with said isolating switch close/open machine.
3. vacuum circuit-breaker xegregating unit according to claim 2 is characterized in that: said trace (2) is horizontally disposed with and can be around its axial rotation under the drive of said circuit breaker main shaft (12); Said buffer gear comprises connecting rod (5), cross bar (9) and flexible member (18);
Said cross bar (9) level frame is located on two supporting brackets (7) of fixing with said casing (3); The length direction of said cross bar (9) is vertical with the length direction of said trace (2); Said cross bar (9) can slide at the length direction of the said cross bar in the support lower edge of said supporting bracket (7) (9), and the end that said cross bar (9) stretches out said supporting bracket (7) is suitable for said isolating switch close/open machine locking/unlocking;
Said flexible member (18) is set on the said cross bar (9) and is positioned between two said supporting brackets (7); Said cross bar (9) is provided with limiting component, and it is spacing to it near an end of said isolating switch close/open machine to be used to prop up said flexible member (18);
Said connecting rod (5) vertically is provided with; Its lower end is fixedly connected with the end that said trace (2) stretches out said casing (3); Under the drive of said trace (2); Said connecting rod (5) can be in perpendicular towards near/away from the direction reciprocally swinging of said isolating switch close/open machine, the upper end of said connecting rod (5) is suitable for contact with said flexible member (18) and the direction of the said isolating switch close/open machine of court applies active force to said flexible member (18).
4. vacuum circuit-breaker xegregating unit according to claim 3 is characterized in that: the upper end of said connecting rod (5) is the fork-shaped that opening makes progress; Said limiting component is limited bolt (11), and said limited bolt (11) is arranged on that said cross bar (9) is positioned between two said supporting brackets (7) and near the position of said isolating switch close/open machine; Said cross bar (9) is provided with first baffle plate (10), second baffle (15) and said limited bolt (11) from its unlocked position to its latched position along its length direction; Said flexible member (18) is arranged between said first baffle plate (10) and the said second baffle (15); Said first baffle plate (10) and said second baffle (15) can be gone up at said cross bar (9) and slide, and said second baffle (15) contacts the back with said limited bolt (11) limited; The upper end of said connecting rod (5) is suitable for being inserted in the side of said first baffle plate (10) away from said isolating switch close/open machine; Said connecting rod (5) applies active force through promoting said first baffle plate (10) to said flexible member (18), and the upper end of said connecting rod (5) does not contact with said cross bar (9).
5. vacuum circuit-breaker xegregating unit according to claim 4; It is characterized in that: said supporting bracket forms installing hole on (7); Said installing hole inwall is provided with antirust sleeve (13), and said cross bar (9) can slide along its length direction in said installing hole.
6. according to the arbitrary described vacuum circuit-breaker xegregating unit of claim 3-5; It is characterized in that: the end of said trace (2) in said casing (3) has guide finger (1), and said guide finger (1) is arranged on the cylinder of said trace (2) and the radially setting of the said trace in axial edge (2) of said guide finger (1); Said circuit breaker main shaft (12) is horizontally disposed with and is parallel with said cross bar (9); One end of said circuit breaker main shaft (12) is fixedly connected with connecting lever (8); Plane, said connecting lever (8) place is vertical with the length direction of said circuit breaker main shaft (12); Said connecting lever (8) can be under the drive of said circuit breaker main shaft (12) in perpendicular the tie point with said connecting lever (8) and said circuit breaker main shaft (12) be that rotate at the center; The other end of said connecting lever (8) forms pilot hole (16); Said pilot hole (16) is suitable for cooperating with said guide finger (1), to convert said connecting lever (8) into said trace (2) around its axial rotation in the rotation of perpendicular.
7. vacuum circuit-breaker xegregating unit according to claim 6; It is characterized in that: said isolating switch close/open machine comprises the limiting plate (14) that is arranged on isolation main shaft (17) one ends and links with said isolation main shaft (17); Said isolation main shaft (17) is horizontally disposed with and is parallel with said cross bar (9); Plane, said limiting plate (14) place is vertical with the length direction of said isolation main shaft (17), and said cross bar (9) locks said isolation main shaft (17) in an end of said isolating switch close/open machine is suitable for being stuck in the stopper slot of said limiting plate (14).
8. according to the arbitrary described vacuum circuit-breaker xegregating unit of claim 1-7, it is characterized in that: said vacuum circuit-breaker (6) is the SF6 vacuum circuit-breaker, and the position that said interlock passes said casing (3) sidewall is provided with sealing device.
9. method for preventing misoperation that utilizes the arbitrary said vacuum circuit-breaker xegregating unit of aforesaid right requirement 3-8; It is characterized in that: in the making process of vacuum circuit-breaker; Said circuit breaker main shaft (12) rotates; Drive trace (2) and rotate towards isolating switch close/open machine direction, connecting rod (5) is swung towards the direction near said isolating switch close/open machine in perpendicular under the effect of said trace (2), and then flexible member (18) is applied active force; Limited, compression that said flexible member (18) contacts with limited bolt (11), and then promote said cross bar (9) to moving near said isolating switch close/open machine direction; If isolating switch generation misoperation this moment; The isolation main shaft (17) of said isolating switch close/open machine is in the position between separating brake and the combined floodgate; With the plane of the limiting plate (14) of said isolation main shaft (17) interlock facing to said cross bar (9); The end of said cross bar (9) will bump against on the plane of said limiting plate (14) and the direct of travel of said cross bar (9) is blocked by the plane of said limiting plate (14); And this moment, said vacuum circuit-breaker still closed a floodgate, and said circuit breaker main shaft (12) is rotated further, and said connecting rod (5) continues said flexible member (18) is applied active force; Because said cross bar (9) can not be pushed again; The stressed further compression of said flexible member absorbs the active force of said connecting rod (5) and the impact on said cross bar (9) and said limiting plate (14) plane, thereby protects said circuit breaker main shaft (12).
10. method for preventing misoperation according to claim 9; It is characterized in that: said flexible member (18) through first baffle plate (10) contact with said limited bolt (11) limited, compress, and then promote said cross bar (9) and move to said isolating switch close/open machine direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110289397 CN102332365B (en) | 2011-09-27 | 2011-09-27 | Vacuum breaker isolation device and anti-maloperation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110289397 CN102332365B (en) | 2011-09-27 | 2011-09-27 | Vacuum breaker isolation device and anti-maloperation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102332365A true CN102332365A (en) | 2012-01-25 |
| CN102332365B CN102332365B (en) | 2013-09-18 |
Family
ID=45484096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110289397 Active CN102332365B (en) | 2011-09-27 | 2011-09-27 | Vacuum breaker isolation device and anti-maloperation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102332365B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494113A (en) * | 2018-11-26 | 2019-03-19 | 湖北网安科技有限公司 | A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating |
| CN114597091A (en) * | 2021-11-30 | 2022-06-07 | 俊郎电气有限公司 | Outdoor vacuum circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2015331A2 (en) * | 2007-07-09 | 2009-01-14 | Ormazabal Distribucion Primaria, S.A. | Operating mechanism with device preventing contact vibration for vacuum circuit breaker. |
| CN201611629U (en) * | 2010-02-05 | 2010-10-20 | 浙江华仪电器科技股份有限公司 | SF6 vacuum circuit breaker isolation equipment |
| CN201877339U (en) * | 2010-12-10 | 2011-06-22 | 福州天一同益电气有限公司 | Operation mechanism with flexible interlocking device |
| CN202210490U (en) * | 2011-09-27 | 2012-05-02 | 浙江华仪电器科技有限公司 | Isolation equipment for vacuum circuit breaker |
-
2011
- 2011-09-27 CN CN 201110289397 patent/CN102332365B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2015331A2 (en) * | 2007-07-09 | 2009-01-14 | Ormazabal Distribucion Primaria, S.A. | Operating mechanism with device preventing contact vibration for vacuum circuit breaker. |
| CN201611629U (en) * | 2010-02-05 | 2010-10-20 | 浙江华仪电器科技股份有限公司 | SF6 vacuum circuit breaker isolation equipment |
| CN201877339U (en) * | 2010-12-10 | 2011-06-22 | 福州天一同益电气有限公司 | Operation mechanism with flexible interlocking device |
| CN202210490U (en) * | 2011-09-27 | 2012-05-02 | 浙江华仪电器科技有限公司 | Isolation equipment for vacuum circuit breaker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494113A (en) * | 2018-11-26 | 2019-03-19 | 湖北网安科技有限公司 | A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating |
| CN114597091A (en) * | 2021-11-30 | 2022-06-07 | 俊郎电气有限公司 | Outdoor vacuum circuit breaker |
| CN114597091B (en) * | 2021-11-30 | 2024-01-05 | 俊郎电气有限公司 | Outdoor vacuum circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102332365B (en) | 2013-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101456317B1 (en) | Self-Blast Interrupter of Gas Insulated Switchgear | |
| US3219771A (en) | Metal enclosed switchgear | |
| CN102332365B (en) | Vacuum breaker isolation device and anti-maloperation method thereof | |
| CN101393804B (en) | Device for controlling the opening and/or closing of the electrical contacts in an electrical apparatus and electrical apparatus containing such a device | |
| EP2838098B1 (en) | Isolating switch | |
| CN202210490U (en) | Isolation equipment for vacuum circuit breaker | |
| CN203339007U (en) | Circuit breaker magnetic flux converter resetting and buffering mechanism | |
| KR20140036956A (en) | Gas circuit breaker | |
| JP6069173B2 (en) | Gas circuit breaker | |
| CN102243943A (en) | Falling-prevention contact mechanism of low-voltage circuit breaker | |
| CN101931178A (en) | Device for forcibly locking front door of switch cabinet | |
| CN201868274U (en) | Interlocking mechanism of switch cabinet | |
| CN213815928U (en) | Anti-misoperation mechanical locking device for stay cable type combined disconnecting link | |
| CN103161363A (en) | Door lock mechanism | |
| CN204303732U (en) | For auxiliary shearing device and the electric switching system of electric switching system | |
| CN202423109U (en) | Connecting and driving device for vacuum circuit breaker | |
| KR100987585B1 (en) | A cell switch operating rod for cubicle | |
| CN209434087U (en) | Impact type manual brake separating mechanism | |
| CN203300504U (en) | Mechanical locking device for high tension switch cabinet | |
| CN107706037B (en) | High-voltage load switch | |
| CN203129773U (en) | Door lock mechanism | |
| CN214280586U (en) | Protector for transformer operation isolator | |
| CN109192594B (en) | A kind of non-maintaining disconnecting switch | |
| CN206340463U (en) | Electric major loop cut-offs isolating closing lock system | |
| CN219457502U (en) | Direct current quick breaker for cross-zone protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230908 Granted publication date: 20130918 |