CN101996797B - High voltage switch locking device - Google Patents
High voltage switch locking device Download PDFInfo
- Publication number
- CN101996797B CN101996797B CN200910102145A CN200910102145A CN101996797B CN 101996797 B CN101996797 B CN 101996797B CN 200910102145 A CN200910102145 A CN 200910102145A CN 200910102145 A CN200910102145 A CN 200910102145A CN 101996797 B CN101996797 B CN 101996797B
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- voltage switch
- locking
- bearing pin
- locking device
- switch gear
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Abstract
The invention discloses a high voltage switch locking device, and belongs to the technical field of high voltage switches. At present, the high voltage switch has no locking device and can be switched on at any time to supply power so as to bring serious threats to the safety of a maintenance person. The high voltage switch locking device comprises a box body and is characterized in that: a fixed shaft sleeve is embedded on the box body, a movably connected locking pin shaft is arranged in the fixed shaft sleeve, and the rear end of the locking pin shaft is connected with a movable rack bar driven by an electric driving assembly. The high voltage switch locking device has the advantages that: the motion of a crank arm of a main shaft of the high voltage switch is affected by the motion of the locking pin shaft so as to realize locking and unlocking of the high voltage switch and improve the safety coefficient when the maintenance person works, and the operation is convenient and quick; a warning scroll linked with the locking pin shaft meets the requirement of a power department, the operation person does not need to go to the site, in particular for overhauling remote and traffic inconvenient circuits, the weariness of the operation person on the run is avoided, and the labor intensity is reduced; and the special emergency unlocking assembly ensures the reliability of the unlocking function of a locking mechanism.
Description
[technical field]
The present invention relates to a kind of high-voltage switch gear locking device, belong to the high-voltage switch gear technical field.
[background technology]
High voltage switchgear is arranged on the usefulness of making branch, closing operation on the high-tension line usually.When certain section circuit need enter into " inspecting state ", earlier high-voltage switch gear is carried out sub-switching operation, Awaiting Overhaul finishes, and again high-voltage switch gear is carried out closing operation, recovers to send.Because existing high-voltage switch gear does not have locking device, can not be lived by locking, operating personnel can close a floodgate at any time and send.Though power department has strict safety regulation for operations, the thing of misoperation, misdelivery electricity also happens occasionally, and has brought serious threat for maintainer's personal safety.In addition, the warning mark that is loaded with " forbidding to close a floodgate " printed words also must be set on separating brake switch next door; Awaiting Overhaul removes " forbidding to close a floodgate " warning mark again before finishing, recover to send electricity, carry out closing operation.These are provided with sign, remove the work of sign, need staff's manual operation that rushes to the scene, time-consuming, effort, complex operation.
[summary of the invention]
The technical problem that the present invention will solve and the technical assignment of proposition are the defectives that overcomes existing high-voltage switch gear, and a kind of high-voltage switch gear locking device that can cooperate remote electrically controlled system to limit combined floodgate, raising maintenance safety coefficient, simple operation is provided.Further goal of the invention of the present invention is, provides a kind of and can cooperate remote electrically controlled system come to be provided with automatically, to remove warning mark, reduce labour intensity, practiced thrift the come and go ceaselessly high-voltage switch gear locking device of time of operating personnel.Goal of the invention of the present invention also is, if when the remote electrically controlled system of its cooperation breaks down, but locking device is removed in manual operation, makes high-voltage switch gear can close a floodgate, restore electricity.For this reason, the present invention adopts following technical scheme:
The high-voltage switch gear locking device comprises casing, it is characterized in that interlocking one fixed hub on the described casing, establishes the locking bearing pin of a flexible connection in the fixed hub, and described locking pin shaft rear end is connected with the movable ratch that is driven by electric drive assembly.The high-voltage switch gear locking device of this structure is set perpendicular to the combined floodgate direction at the connecting lever place of high-voltage switch gear main shaft; And cooperate with remote electrically controlled system, operating personnel are the may command electric drive assembly through electric signal in the control room, thus the activity ratch of order travels forward and promotes the locking pin shaft extension and go out the fixed hub on the casing; Made it to withstand the connecting lever of high-voltage switch gear main shaft; When preventing to overhaul, there is people's misoperation to close a floodgate, send electricity, the personal safety that threatens the maintainer.After treating that line maintenance finishes, through remote electrically controlled system control electric drive assembly, drive activity ratch moves backward again, makes in the locking bearing pin withdrawal fixed hub, and connecting lever then can be accomplished feed motion smoothly.Therefore; Without the control electric drive assembly action of remote electrically controlled system; Just can not make the locking pin shaft extension contract with locking, untie mechanical locking device, realize concentrated, locking, the release of Long-distance Control high-voltage switch gear exactly, improve the coefficient of safety the when maintainer works greatly; Simple operation, and saved the manually operated time in transit that rushes to the scene.
For the improving and replenishing of technique scheme, can increase following technical characterictic or its combination:
The shaft gear that described electric drive assembly comprises motor, is installed in the motor gear on the motor output shaft and meshes with motor gear is on the teeth of the downside of the upper limb interlock activity ratch of described shaft gear.Cooperate with remote electrically controlled system; Operating personnel are may command motor forward and backward through electric signal in the control room; Make motor gear drive shaft gear instead, just change; Thereby driving activity ratch is flexible on the axis of locking bearing pin, makes the working end of locking bearing pin stretch out, withdraws, and correspondingly realizes locking, unlocking function.
Described shaft gear is connected with the rotating shaft of listing of band caution vertically hung scroll.During the motor forward and backward, correspondingly can drive the rotating shaft of listing changes counterclockwise, changes clockwise, rolling when the caution vertically hung scroll that making a width of cloth indicate has " forbidding to close a floodgate " hangs from above with released state when locking pin shaft locking state.Strictness carry out that power department requires on separating brake switch next door, the warning mark that is loaded with " forbidding to close a floodgate " printed words also must be set; Awaiting Overhaul removes " forbidding to close a floodgate " warning mark again before finishing, recover to send electricity; When carrying out safetys regulation for operations such as closing operation; The on-the-spot caution vertically hung scroll that is provided with, removes need not to dispatch officers; Simple operation, particularly overhaul road remote, when having inconvenient traffic circuit, exempted the hardship of hurrying back and forth of operating personnel's contact.
Described caution vertically hung scroll lower end is connected with the round steel hanging scroll, and described casing is along being provided with insulation channel plate on the two side of caution vertically hung scroll lowering stroke, and insulation channel plate is provided with the elastic contact blade that is electrically connected with motor in both ends up and down.When the motor forward and backward; Make downward in the insulation channel plate on casing both sides, the upwards slip of the terminal round steel hanging scroll of vertically hung scroll; Realize the lowering and the rolling of caution vertically hung scroll, when the round steel hanging scroll contacts the elastic contact blade of descending, the up spacing point of conduct caution vertically hung scroll, cut off motor power; Make the motor stall, the caution vertically hung scroll is accomplished the action of lowering and rolling.
Described movable ratch is provided with the stage clip that is connected with the locking pin shaft rear end; Described casing extends axially at the locking pin shaft rear end and is provided with second fixed hub on the line; Described movable ratch rear end is placed in second fixed hub and seals second stage clip; Described locking pin shaft rear end is provided with the connecting rod of an insertion activity ratch, and described connecting rod end is connected with stay cord.When remote electrically controlled system down, in the time of can't driving electric drive assembly withdrawal locking bearing pin; Can carry out the manual operation release through emergency unlocking device; Be that operating personnel spur stay cord, traction link, compression press spring and second stage clip vertically; Thereby force the locking bearing pin to be withdrawn by force, realize emergency release, guaranteed that locking mechanism is safe and reliable.If unclamp stay cord, stage clip, second stage clip then recover deformation, can help activity ratch promotion locking pin shaft extension go out the fixed hub on the casing, realize the locking function.
Described second fixed hub is positioned at the outer end of casing and is connected with bend pipe, and described stay cord passes bend pipe and is connected with the emergency release draw ring of diameter greater than bend pipe.Bend pipe can change the pulling direction of stay cord, when bend pipe being set downwards, is convenient to operating personnel's emergency release; During remote electrically controlled system operate as normal, the emergency release draw ring is movable in the groove of bend pipe one end, keeps stay cord not influence the action of movable ratch and locking bearing pin.
Described bend pipe also is provided with bearing pin and extension spring.Bearing pin is convenient to stay cord and is changed the direction of motion, can smooth and easyly move, and extension spring can help stay cord to reset.
Described bend pipe end is provided with the caulking groove that holds the emergency release draw ring.Draw ring is positioned at caulking groove during normal operating conditions, and during emergency release, pulling emergency release draw ring makes it to break away from caulking groove, and revolves to turn 90 degrees and be buckled on the bend pipe end face, thereby makes the locking bearing pin keep retracted mode, realizes release by force.
The present invention controls the motion of locking bearing pin through the electric drive assembly that can cooperate with remote electrically controlled system; Influence the motion of the connecting lever of high-voltage switch gear main shaft; Realize the locking and the release of high-voltage switch gear, improved the coefficient of safety the when maintainer works greatly, simple operation; Caution vertically hung scroll with the interlock of locking bearing pin; Satisfy the power department requirement, operating personnel need not rush to the scene, particularly overhaul road remote, when having inconvenient traffic circuit; Exempted the hardship of hurrying back and forth of operating personnel's contacts; Reduce labour intensity, ad hoc emergency release assembly has been guaranteed the reliability of locking mechanism unlocking function.
[description of drawings]
Fig. 1 is one of structural representation of the embodiment of the invention;
Fig. 2 be the embodiment of the invention structural representation two;
Fig. 3 is the structural representation of embodiment of the invention released state;
Fig. 4 is the structural representation of embodiment of the invention emergency release state.
Among the figure: 1, motor, 2, motor gear, 3, the rotating shaft of listing, 4, shaft gear, 5, the caution vertically hung scroll, 6, the round steel hanging scroll; 7, insulation channel plate, 8, elastic contact blade, 9, movable ratch, 10, stage clip, 11, fixed hub; 12, locking bearing pin, 13, second stage clip, 14, second fixed hub, 15, casing, 16, bend pipe; 17, emergency release draw ring, 18, bearing pin, 19, stay cord, 20, extension spring, 21, connecting rod.
[embodiment]
Below in conjunction with Figure of description and embodiment substantive distinguishing features of the present invention is further described.
Shown in Fig. 1-4, the high-voltage switch gear locking device comprises casing 15, and interlocking one fixed hub 11 is established the locking bearing pin 12 of a flexible connection on the casing 15 in the fixed hub 11, and locking bearing pin 12 rear ends are connected with the movable ratch 9 that is driven by electric drive assembly.The shaft gear 4 that electric drive assembly comprises motor 1, is installed in the motor gear 2 on the motor output shaft and meshes with motor gear 2, the upper limb of shaft gear 4 is positioned on the stroke of movable ratch 9.Shaft gear 4 is connected with the rotating shaft 3 of listing of band caution vertically hung scroll 5.Caution vertically hung scroll 5 lower ends are connected with round steel hanging scroll 6, and casing 15 is along being provided with insulation channel plate 7 on the two side of caution vertically hung scroll 5 lowering strokes, and insulation channel plate is provided with the elastic contact blade 8 that is electrically connected with motor in both ends about in the of 7.Movable ratch 9 is provided with the stage clip 10 that is connected with locking bearing pin 12 rear ends; Casing 15 extends axially in locking bearing pin 12 rear ends and is provided with second fixed hub 14 on the line; Movable ratch 9 rear ends are placed in second fixed hub 14 and seal second stage clip 13; Locking bearing pin 12 rear ends are provided with the connecting rod 21 of an insertion activity ratch 9, and connecting rod 21 ends are connected with stay cord 19.Second fixed hub 14 is positioned at casing 15 outer ends and is connected with bend pipe 16, and stay cord 19 passes bend pipe 16 and is connected with the emergency release draw ring 17 of diameter greater than bend pipe 16.Bend pipe 16 also is provided with bearing pin 18 and extension spring 20.Bend pipe 16 ends are provided with the caulking groove that holds emergency release draw ring 17.
In the actual product, motor 1 is a direct current machine, and motor gear 2 is housed on the output shaft, and the position is in the lower end of listing rotating shaft 3.The spindle nose of rotating shaft 3 of listing is equipped with shaft gear 4, is wound with " forbidding to close a floodgate " caution vertically hung scroll 5 in the rotating shaft 3 of listing, and its tail end is hung round steel hanging scroll 6, and when vertically hung scroll lowering or rolling, garden steel hanging scroll 6 can slide up and down in the groove of the insulation channel plate 7 on casing 15 both sides.The upper/lower terminal of insulation channel plate 7 respectively is embedded with a pair of elastic contact blade 8, as the spacing point of " forbidding to close a floodgate " caution vertically hung scroll 5 upper and lower strokes.When round steel hanging scroll 6 touches logical a pair of spring contact strip 8, cut off motor 1 power supply, make the motor stall.The only a small amount of several teeth in movable ratch 9 lower ends, the horizontal upper end that is contained in the rotating shaft 3 of listing, the upper end interlock mutually of the gear 4 of the lower end of teeth and the rotating shaft of listing, the size that how much is determining movable ratch 9 move distances of teeth quantity.Movable ratch 9 major parts interlock with the locking bearing pin 12 that is enclosed within fixed hub 11 the insides through stage clip 10 mutually.The microcephaly is sleeved on second fixed hub, 14 the insides through second stage clip 13, movable ratch 9 under the drive of shaft gear 4 during forward and backward motion, promote locking bearing pin 12 do to protract, after the activity of contracting.
Emergency unlocking device comprises second fixed hub 14 and the bend pipe 16 that is attached thereto that are fixed on the casing 15 in casing 15 outsides.Be embedded with a bearing pin 18 that is with roll sleeve, stay cord 19 strings in the middle of the knee of bend pipe 16 in bend pipe 16 and second fixed hub 14, second stage clip, 13 the insides; Walk around on the connecting rod 21 that bearing pin 18 is buckled in locking bearing pin 12 tail ends for one; The other end is fixed on above the emergency release draw ring 17; As long as spur emergency release draw ring 17 downwards, just can force the locking bearing pin 12 that stretches out to be withdrawn by force like this, realize emergency release.
When remote control signal made motor 1 positive and negative rotation, motor gear 2 drove the shaft gear 4 of interlock and does anti-, turn, being wrapped in " forbidding to close a floodgate " caution vertically hung scroll 5 lowerings or the rolling of listing above the rotating shaft 3.When the garden steel hanging scroll 6 of vertically hung scroll tail end contacted a pair of elastic contact blade 8 in insulation channel plate 7 lower ends, motor stopped operating during lowering, and lowering finishes.When the garden steel hanging scroll 6 of vertically hung scroll tail end had contacted a pair of elastic contact blade 8 in the upper end of insulation channel plate 7, motor stopped operating during rolling, and rolling finishes.That shaft gear 4 is done is anti-, turn the time; Movable ratch 9 corresponding the seesawing of interlock above driving again; The major part of movable ratch 9 stretches out forward through the locking bearing pin 12 that stage clip 10 promotions are enclosed within fixed hub 11 the insides when travelling forward; Block the connecting lever on the high-voltage switch gear main shaft, making it locking can't close a floodgate, and this moment, fixed hub also can play the restraint ratch 9 undue locking bearing pins of releasing.During release,, drive locking bearing pin 12 withdrawal backward when movable ratch 9 moves backward, make the connecting lever release of jammed high-voltage switch gear main shaft to be able to free activity because movable ratch 9 microcephalies' tail end has fastened the tail end of locking bearing pin 12.When " forbidding to close a floodgate " caution vertically hung scroll 5 lowerings, locking bearing pin 12 just in time stretches out forward, pins the high-voltage switch gear main shaft and makes it and can't close a floodgate.At this moment, send unlocking signal without remote electrically controlled system, can't automatic unlocking, close a floodgate, guaranteed the safe and reliable of high-voltage switch gear branch, combined floodgate.The locking bearing pin is because of the remote electrically controlled system failure; In the time of can not withdrawing release automatically; Then operating personnel can arrive the switch scene; With hook stick leave behind emergency release draw ring 17 and half-twist deduction, this moment is through stay cord 19, compression spring 10, the second compression spring 13, forces locking bearing pin 12 release of withdrawing by force.
High-voltage switch gear locking device shown in above Fig. 1-4 is a specific embodiment of the present invention; Substantive distinguishing features and obvious improvement that the present invention gives prominence to have been embodied; Can carry out the modification of aspects such as shape, specification, material to it according to the use needs of reality, seldom give unnecessary details at this.
Claims (8)
1. high-voltage switch gear locking device; Comprise casing (15); It is characterized in that connecting lever place that described casing (15) is arranged on the high-voltage switch gear main shaft is perpendicular on the combined floodgate direction and rabbet a fixed hub (11); Establish the locking bearing pin (12) of a flexible connection in the fixed hub (11); The rear end of said locking bearing pin (12) is connected with the movable ratch (9) that is driven by electric drive assembly, and the movable ratch promotion locking pin shaft extension that travels forward goes out the fixed hub on the casing, has made it to withstand the connecting lever of high-voltage switch gear main shaft.
2. high-voltage switch gear locking device according to claim 1; It is characterized in that described electric drive assembly comprise motor (1), be installed on the motor output shaft motor gear (2) and with the shaft gear (4) of motor gear (2) engagement, the upper limb of described shaft gear (4) is positioned on the teeth of downside of movable ratch (9).
3. high-voltage switch gear locking device according to claim 2 is characterized in that described shaft gear (4) is connected with the rotating shaft of listing (3) of band caution vertically hung scroll (5).
4. high-voltage switch gear locking device according to claim 3; It is characterized in that described caution vertically hung scroll (5) lower end is connected with round steel hanging scroll (6); Described casing (15) is along being provided with insulation channel plate (7) on the two side of caution vertically hung scroll (5) lowering stroke; Insulation channel plate (7) both ends up and down is provided with the elastic contact blade (8) that is electrically connected with motor, when the round steel hanging scroll contacts the elastic contact blade of descending, the up spacing point of conduct caution vertically hung scroll, cuts off motor power; Make the motor stall, the caution vertically hung scroll is accomplished the action of lowering and rolling.
5. according to claim 1,2,3 or 4 described high-voltage switch gear locking devices; It is characterized in that being provided with the stage clip (10) that is connected with locking bearing pin (12) rear end in the inner chamber of described movable ratch (9); Described casing (15) extends axially in locking bearing pin (12) rear end and is provided with second fixed hub (14) on the line; Described movable ratch (9) rear end is placed in second fixed hub (14) and seals second stage clip (13); Described locking bearing pin (12) rear end is provided with the connecting rod (21) of an insertion activity ratch (9), and described connecting rod (21) front end passes stage clip, and connecting rod end is connected with stay cord (19); Stay cord button is on the connecting rod (21) of locking bearing pin (12) tail end; Spur stay cord, traction link, compression press spring and second stage clip vertically, can force the locking bearing pin to be withdrawn by force, realize emergency release.
6. high-voltage switch gear locking device according to claim 5; It is characterized in that described second fixed hub (14) is positioned at the outer end of casing (15) and is connected with bend pipe (16), described stay cord (19) passes bend pipe (16) and is connected with the emergency release draw ring (17) of diameter greater than bend pipe (16).
7. high-voltage switch gear locking device according to claim 6; The centre, knee that it is characterized in that described bend pipe (16) is embedded with a bearing pin (18) that is with roll sleeve; Stay cord (19) string is inside bend pipe (16) and second fixed hub (14), second stage clip (13); Walk around on the connecting rod (21) that bearing pin (18) is buckled in locking bearing pin (12) tail end for one; The other end is fixed on above the emergency release draw ring (17), also is provided with the extension spring (20) that can help stay cord to reset in the bend pipe (16).
8. high-voltage switch gear locking device according to claim 6 is characterized in that described bend pipe (16) end is provided with the caulking groove that holds emergency release draw ring (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102145A CN101996797B (en) | 2009-08-20 | 2009-08-20 | High voltage switch locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102145A CN101996797B (en) | 2009-08-20 | 2009-08-20 | High voltage switch locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101996797A CN101996797A (en) | 2011-03-30 |
| CN101996797B true CN101996797B (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910102145A Expired - Fee Related CN101996797B (en) | 2009-08-20 | 2009-08-20 | High voltage switch locking device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101996797B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319130B (en) * | 2014-09-18 | 2016-11-30 | 平高集团有限公司 | Operating mechanism and blocking device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200953292Y (en) * | 2006-09-26 | 2007-09-26 | 上海中科电气(集团)有限公司 | High-voltage switch cabinet anti-misoperating interlocking device |
| CN200959290Y (en) * | 2006-04-30 | 2007-10-10 | 上海中科电气(集团)有限公司 | Operating mechanical interlocking device against fault for high-voltage circular network cabinet |
| CN101425406A (en) * | 2007-10-30 | 2009-05-06 | 上海中科电气(集团)有限公司 | Incorrect operation preventing interlocking apparatus for low voltage drawer type switch cabinet |
| CN201490045U (en) * | 2009-08-20 | 2010-05-26 | 周友东 | High-voltage switch locking device |
-
2009
- 2009-08-20 CN CN200910102145A patent/CN101996797B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200959290Y (en) * | 2006-04-30 | 2007-10-10 | 上海中科电气(集团)有限公司 | Operating mechanical interlocking device against fault for high-voltage circular network cabinet |
| CN200953292Y (en) * | 2006-09-26 | 2007-09-26 | 上海中科电气(集团)有限公司 | High-voltage switch cabinet anti-misoperating interlocking device |
| CN101425406A (en) * | 2007-10-30 | 2009-05-06 | 上海中科电气(集团)有限公司 | Incorrect operation preventing interlocking apparatus for low voltage drawer type switch cabinet |
| CN201490045U (en) * | 2009-08-20 | 2010-05-26 | 周友东 | High-voltage switch locking device |
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| Publication number | Publication date |
|---|---|
| CN101996797A (en) | 2011-03-30 |
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Owner name: NINGBO XINGBANG ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: ZHOU YOUDONG Effective date: 20111101 |
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Effective date of registration: 20111101 Address after: 315450 Zhejiang city in Yuyao Province Ma Zhu Zhen Zhu North Road, No. 45 Applicant after: Ningbo Xingbang Electric Co., Ltd. Address before: 315450 Zhejiang province Yuyao Mazhu Town Sheng Road No. 8, Ningbo Xingbang Electric Appliance Co. Ltd Applicant before: Zhou Youdong |
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