CN202121241U - Anti-misoperation locking device for electric grounding knifeswitch of medium voltage switchgear - Google Patents
Anti-misoperation locking device for electric grounding knifeswitch of medium voltage switchgear Download PDFInfo
- Publication number
- CN202121241U CN202121241U CN201120242105XU CN201120242105U CN202121241U CN 202121241 U CN202121241 U CN 202121241U CN 201120242105X U CN201120242105X U CN 201120242105XU CN 201120242105 U CN201120242105 U CN 201120242105U CN 202121241 U CN202121241 U CN 202121241U
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- Prior art keywords
- earthed switch
- slide plate
- swing frame
- guide
- assembly
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Abstract
Disclosed is an anti-misoperation locking device for the electric grounding knifeswitch of a medium voltage switchgear. The grounding switch operating shaft of a grounding switch group is connected with a sleeve, and a cam, a stop washer and a display identification ring are fixed at one end of the sleeve; in a guide sheet component, the side surface of a slide sheet is sleeved with a bearing pedestal rotatably connected with the sleeve, the slide sheet is slidable vertically with respect to the bearing pedestal, and the slide sheet is provided with a guide pin for positioning the vertical moving guide of the slide sheet; the rotating shaft of the bearing support of a guide component is connected to the top of the slide sheet through a crank and a pull bar; the U shaped swing frame of the bearing support is sleeved in a U shaped fixing frame, a torque spring is sleeved on the rotating shaft, and the two ends of the torque spring abut against the swing frame and the bearing support; the middle of a moving bar in a rectangular hole groove on the fixing frame is connected with a telescopic sheet, and the two wings of the swing frame are connected with the two ends of the moving bar; the grounding switch operating shaft linked with the slide sheet moves vertically, the swing frame drives the telescopic sheet to move horizontally, finishing the locking or unlocking of the electric grounding knifeswitch, and ensuring the security of switching-on/switching-off operation of the electric grounding knifeswitch.
Description
Technical field
The utility model relates to a kind of locking device, electronic ground of particularly a kind of Medium Voltage Switchgear cutter anti-incorrect manipulation deadlock device.
Background technology
" five is anti-" is the abbreviation that prevents five kinds of electric misoperations in the electric power system; Promptly divide by mistake, mistake closes circuit breaker, on-load opening and closing isolating switch, charged extension (closing) ground connection burst at the seams (switch); Band earth connection (switch) closes circuit breaker (isolating switch), mistakenly entering charged chamber.Therefore, various switchgear cabinets must have certain operating sequence, otherwise will cause serious consequence even accident occur.Switch cubicle should have " five is anti-" function simultaneously.After circuit breaker cart arrived test position in the Medium Voltage Switchgear, earthed switch could close electronic (or manually), separating brake.As ground protection usefulness, when earthed switch separating brake not, circuit breaker cart can not break away from the experiment position and get into the service position earthed switch during as overhaul of the equipments.In the existing intelligentized switch cubicle, accurate, reliable earthed switch motor-operating mechanism is absolutely necessary, and operating personnel can realize remote operation, need not arrive on-the-spot branch, the closing operation that just can accomplish earthed switch.The switch cubicle of existing domestic production can be realized mechanical latching in the earthed switch manual operation, but is grounded also imperfection of switch electric operating mechanical latching; When the maintainer need overhaul the components and parts in the switch cubicle cable vault, in case it is unreliable earthed switch electric operating mechanical latching to occur, circuit breaker cart ablation experiment position got into the service position; This moment, switchgear was in on-state; If maintainer's mistakenly entering charged chamber and touch charging equipment when maintenance, its consequence is exactly that personnel are shocked by electricity, and can't guarantee operating personnel's life security; Can't guarantee the safety of whole maintenance process, " five is anti-" function imperfection.
The utility model content
For solving the deficiency of earthed switch electric operating locking design in the existing Medium Voltage Switchgear, the utility model is intended to propose electronic ground of a kind of Medium Voltage Switchgear cutter anti-incorrect manipulation deadlock device.
The utility model solves the technical scheme that its technical problem adopted: electronic ground of Medium Voltage Switchgear cutter anti-incorrect manipulation deadlock device, the prerotation vane assembly and the guide assembly that can be installed in horizontal right guide rail one side of circuit breaker cart on the opposite position that comprise the earthed switch assembly that can be installed on the earthed switch framework correspondence position, can be installed in the earthed switch handle hole; It is characterized in that:
The earthed switch assemblyIn, the earthed switch operating axis is through locating piece and the hexagon socket head cap screw sleeve pipe that is connected, and cam, stop washer and explicit identification ring are fixed on sleeve pipe one end;
The prerotation vane assemblyIn, the bearing pedestal that the sleeve pipe in slide plate side sheathed one and the earthed switch assembly is rotationally connected, slide plate bearing pedestal relatively slides up and down, and slide plate is provided with the guide finger that the location slide plate moves up and down guiding, and guide finger is provided with the cheese head screw that is used for fixing guide finger;
Guide assemblyIn, a support of bearing parallel with the earthed switch operating axis is provided with the rotation axis that is rotationally connected with it, and rotation axis one end connects a crank one end, is movably hinged a pull bar between the slide plate top in the other end of crank and the prerotation vane assembly; The terminal U-shaped fixed frame that connects of the support of bearing, cover one U-shaped swing frame in the U-shaped fixed frame, rotation axis is fixedly connected with swing frame, and a torque spring is placed on the rotation axis, and torque spring one two ends contact with the swing frame and the support of bearing respectively; The fixed frame both wings are provided with the strip hole slot, are provided with a carriage release lever parallel with rotation axis in the strip hole slot, are connected with the stretchable sheet with the carriage release lever horizontal vertical in the middle of the carriage release lever, and the swing frame both wings are connected the carriage release lever both ends.
Be provided with a window in the prerotation vane assembly of the utility model in the middle of the slide plate, this window is corresponding with sleeve pipe on the bearing pedestal, and in window, is provided with a screw key and is connected with cannula tip; Be that the utility model can drive sleeve pipe through manual screw key and rotates, and then drive the earthed switch operating axis and rotate that what reach manual operation the utility model carries out the purpose of breaking-closing operating to earthed switch.
The window contraposition explicit identification ring of utility model, the explicit identification ring rotates along with the earthed switch operating axis, and at the mode of operation of window through " branch " on the explicit identification ring, " closing " printed words demonstration earthed switch operating axis.
The beneficial effect of the utility model is: the earthed switch operating axis rotates; Slide plate through being connected in the cam driven prerotation vane assembly on the earthed switch operating axis moves downward or upward; Swing frame in the prerotation vane assembly drives in the guide assembly stretchable sheet and moves horizontally the mechanical latching of accomplishing electronic ground cutter or unblank, and can guarantee that electronic ground cutter carries out the safety of breaking-closing operating.
Description of drawings
Fig. 1 is electronic ground of a utility model cutter
Separating brakeThe perspective view of state.
Fig. 2 is electronic ground of a utility model cutter
MiddleThe perspective view of state.
Fig. 3 is electronic ground of a utility model cutter
Close a floodgateThe three-dimensional structural scheme of mechanism of state.
Fig. 4 is electronic ground of a utility model cutter gate-dividing state front view.
Fig. 5 is electronic ground of a utility model cutter gate-dividing state right view.
Fig. 6 is electronic ground of a utility model cutter "on" position front view.
Among the figure:
10. the earthed switch assembly; 11. earthed switch operating axis; 12. locating piece; 13. hexagon socket head cap screw; 14. sleeve pipe; 15. cam; 16. stop washer; 17. explicit identification ring;
20. the prerotation vane assembly; 21. slide plate; 22. bearing pedestal; 23. guide finger; 24. cheese head screw; 25. window;
30. guide assembly; 31. the support of bearing; 32. rotation axis; 33. crank; 34. pull bar; 35. fixed frame; 351. strip hole slot; 36. swing frame; 361. carriage release lever; 37. torque spring; 38. stretchable sheet;
40. screw key.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
As
Fig. 1～
Fig. 6Shown electronic ground of a kind of Medium Voltage Switchgear cutter anti-incorrect manipulation deadlock device, the prerotation vane assembly 20 and the guide assembly 30 that can be installed in horizontal right guide rail one side of circuit breaker cart on the opposite position that comprise the earthed switch assembly 10 that can be installed on the earthed switch framework correspondence position, can be installed in the earthed switch handle hole; In the earthed switch assembly 10, earthed switch operating axis 11 is through locating piece 12 and hexagon socket head cap screw 13 sleeve pipe 14 that is connected, and cam 15, stop washer 16 and explicit identification ring 17 are fixed on sleeve pipe one end; In the prerotation vane assembly 20; The bearing pedestal 22 that sleeve pipe 14 in slide plate 21 sides sheathed one and the earthed switch assembly 10 is rotationally connected; Slide plate 21 bearing pedestal 22 relatively slides up and down; Slide plate 21 is provided with the guide finger 23 that location slide plate 21 moves up and down guiding, and guide finger 23 is provided with the cheese head screw 24 that is used for fixing guide finger 23; Be provided with a window 25 in the prerotation vane assembly 20 in the middle of the slide plate 21; This window 25 is corresponding with sleeve pipe 14 on the bearing pedestal 22; And in window 25, being provided with a screw key 40 is connected with sleeve pipe 14 ends; Drive sleeve pipes 14 through manual screw key 40 and rotate, and then drive earthed switch operating axis 11 and rotate control slide plates 21 and move, what reach manual operation the utility model carries out the purpose of breaking-closing operating to earthed switch; Window 25 contraposition explicit identification rings 17 in the middle of the slide plate 21; In the guide assembly 30; One is provided with the rotation axis 32 that is rotationally connected with it with the earthed switch operating axis 10 parallel supports of bearing 31; Rotation axis 32 1 ends connect a crank 33 1 ends, are movably hinged a pull bar 34 between slide plate 21 tops in the other end of crank 33 and the prerotation vane assembly 20; The support of bearing 31 terminal U-shaped fixed frames 35 that connect; Cover one U-shaped swing frame 36 in the U-shaped fixed frame 35; Rotation axis 32 is fixedly connected with swing frame 36, and a torque spring 37 is placed on the rotation axis 32, and torque spring 37 1 two ends contact with the swing frame 36 and the support of bearing 31 respectively; Fixed frame 35 both wings are provided with strip hole slot 351; Be provided with a carriage release lever 361 parallel in the strip hole slot 351 with rotation axis 32; Carriage release lever 361 centres are connected with the stretchable sheet 38 with carriage release lever 361 horizontal vertical, and swing frame 36 both wings are connected carriage release lever 361 both ends.
The operation principle and the embodiment of the utility model explained in explanation below.
When circuit breaker cart arrives test position, as
Fig. 1,
Fig. 4Shown in, the utility model is in the separating brake position, and slide plate 21 is in the raw; As
Fig. 2,
Fig. 3,
Fig. 5With
Fig. 6Shown in, rotating 15 rotations of earthed switch operating axis 11 drive cams this moment and press down slide plate 21, slide plate 21 can carry out the closing by hand operation to moving down; Earthed switch is through electronic ground cutter closing operation; Earthed switch operating axis 11 clockwise rotates 90 °; Cam 15 is fixed on the earthed switch operating axis 11 through locating piece 12, hexagon socket head cap screw 13, sleeve pipe 14, also clockwise rotates 90 ° in the lump, and 15 on cam drives slide plate 21 and moves down together; 16 of stop washers can guarantee that slide plate 21 reaches closing position accurately; Slide plate 21 is fixed on the opposite position of skeleton handle hole through guide finger 23, cheese head screw 24; Slide plate 21 moves down and drives pull bar 34 actions; Be attached thereto crank 33 and drive rotation axis 32 rotations, torque spring 37 is tightened distortion, swing frame 36 rotations in the fixed frame 35; Swing frame 36 rotations drive in the strip hole slot 351 of carriage release lever 361 on fixed frame 35 moves, makes the stretchable sheet 38 that is connected with carriage release lever 361 to protract with respect to the support of bearing 31, and the support of bearing 31 is fixed on cabinet guide rail right side.As
Fig. 3,
Fig. 6Shown in, explicit identification 17 also changeed 90 ° clockwise after combined floodgate put in place, and after earthed switch put in place through electronic ground cutter combined floodgate, stretchable sheet 38 horizontal directions were stretched out left, have prevented circuit breaker cart from the test position to the service position, realize locking; After earthed switch puts in place through electronic ground cutter separating brake, as
Fig. 1With
Fig. 4Shown in, it is electronic or manually control earthed switch operating axis 11 backward rotation,, stretchable sheet 38 horizontal directions are moved right, realize release.
Above embodiment only supplies to explain the usefulness of the utility model, but not to the restriction of the utility model, those skilled in the art under the situation of spirit that does not break away from the utility model and scope, can also make various conversion or variation.Therefore, all technical schemes that are equal to also should belong to the category of the utility model, should be limited each claim.
Claims (3)
1. electronic ground of Medium Voltage Switchgear cutter anti-incorrect manipulation deadlock device, the prerotation vane assembly and the guide assembly that can be installed in horizontal right guide rail one side of circuit breaker cart on the opposite position that comprise the earthed switch assembly that can be installed on the earthed switch framework correspondence position, can be installed in the earthed switch handle hole;
It is characterized in that:
In the earthed switch assembly, the earthed switch operating axis is through locating piece and the hexagon socket head cap screw sleeve pipe that is connected, and cam, stop washer and explicit identification ring are fixed on sleeve pipe one end;
In the prerotation vane assembly; The bearing pedestal that sleeve pipe in slide plate side sheathed one and the earthed switch assembly is rotationally connected; Slide plate bearing pedestal relatively slides up and down, and slide plate is provided with the guide finger that the location slide plate moves up and down guiding, and guide finger is provided with the cheese head screw that is used for fixing guide finger;
In the guide assembly, a support of bearing parallel with the earthed switch operating axis is provided with the rotation axis that is rotationally connected with it, and rotation axis one end connects a crank one end, is movably hinged a pull bar between the slide plate top in the other end of crank and the prerotation vane assembly; The terminal U-shaped fixed frame that connects of the support of bearing, cover one U-shaped swing frame in the U-shaped fixed frame, rotation axis is fixedly connected with swing frame, and a torque spring is placed on the rotation axis, and torque spring one two ends contact with the swing frame and the support of bearing respectively; The fixed frame both wings are provided with the strip hole slot, are provided with a carriage release lever parallel with rotation axis in the strip hole slot, are connected with the stretchable sheet with the carriage release lever horizontal vertical in the middle of the carriage release lever, and the swing frame both wings are connected the carriage release lever both ends.
2. electronic ground of Medium Voltage Switchgear as claimed in claim 1 cutter anti-incorrect manipulation deadlock device; It is characterized in that: be provided with a window in the described prerotation vane assembly in the middle of the slide plate; This window is corresponding with sleeve pipe on the bearing pedestal, and in window, is provided with a screw key and is connected with cannula tip.
3. according to claim 1 or claim 2 electronic ground of Medium Voltage Switchgear cutter anti-incorrect manipulation deadlock device is characterized in that: described window contraposition explicit identification ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120242105XU CN202121241U (en) | 2011-07-11 | 2011-07-11 | Anti-misoperation locking device for electric grounding knifeswitch of medium voltage switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120242105XU CN202121241U (en) | 2011-07-11 | 2011-07-11 | Anti-misoperation locking device for electric grounding knifeswitch of medium voltage switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202121241U true CN202121241U (en) | 2012-01-18 |
Family
ID=45462278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120242105XU Expired - Fee Related CN202121241U (en) | 2011-07-11 | 2011-07-11 | Anti-misoperation locking device for electric grounding knifeswitch of medium voltage switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202121241U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093984A (en) * | 2013-01-17 | 2013-05-08 | 国家电网公司 | Switchgear earthing switch and cable room door interlocking mechanism |
| CN103456531A (en) * | 2013-05-13 | 2013-12-18 | 江山市开关厂有限公司 | Interlocking device special for switch cabinet |
| CN104992858A (en) * | 2015-06-15 | 2015-10-21 | 盛道（中国）电气有限公司 | Interlocking mechanism of vacuum circuit breaker and isolation switch operation mechanism |
| CN106024453A (en) * | 2016-06-22 | 2016-10-12 | 四川电器成套设备有限公司 | Misoperation-preventing interlocking apparatus |
| CN106558432A (en) * | 2015-09-28 | 2017-04-05 | 西门子公司 | The support meanss of the switch shaft for rotating around its longitudinal axis |
| CN109038340A (en) * | 2018-08-04 | 2018-12-18 | 佳电气有限公司 | Hand-electric opening/closing operation mechanism for breaker |
| CN109217159A (en) * | 2018-10-24 | 2019-01-15 | 深圳供电局有限公司 | The interlock of handcart circuit breaker |
-
2011
- 2011-07-11 CN CN201120242105XU patent/CN202121241U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093984A (en) * | 2013-01-17 | 2013-05-08 | 国家电网公司 | Switchgear earthing switch and cable room door interlocking mechanism |
| CN103093984B (en) * | 2013-01-17 | 2017-02-08 | 国家电网公司 | Switchgear earthing switch and cable room door interlocking mechanism |
| CN103456531A (en) * | 2013-05-13 | 2013-12-18 | 江山市开关厂有限公司 | Interlocking device special for switch cabinet |
| CN104992858A (en) * | 2015-06-15 | 2015-10-21 | 盛道（中国）电气有限公司 | Interlocking mechanism of vacuum circuit breaker and isolation switch operation mechanism |
| CN104992858B (en) * | 2015-06-15 | 2017-05-17 | 盛道（中国）电气有限公司 | Interlocking mechanism of vacuum circuit breaker and isolation switch operation mechanism |
| CN106558432A (en) * | 2015-09-28 | 2017-04-05 | 西门子公司 | The support meanss of the switch shaft for rotating around its longitudinal axis |
| CN106558432B (en) * | 2015-09-28 | 2019-10-08 | 西门子公司 | Support device for the switch shaft that can be rotated around its longitudinal axis |
| CN106024453A (en) * | 2016-06-22 | 2016-10-12 | 四川电器成套设备有限公司 | Misoperation-preventing interlocking apparatus |
| CN106024453B (en) * | 2016-06-22 | 2018-06-26 | 四川电器集团股份有限公司 | A kind of interlock for preventing maloperation |
| CN109038340A (en) * | 2018-08-04 | 2018-12-18 | 佳电气有限公司 | Hand-electric opening/closing operation mechanism for breaker |
| CN109038340B (en) * | 2018-08-04 | 2023-12-01 | 佳一电气有限公司 | Manual and electric opening and closing operation mechanism for circuit breaker |
| CN109217159A (en) * | 2018-10-24 | 2019-01-15 | 深圳供电局有限公司 | The interlock of handcart circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 361000 Fujian province Xiamen torch hi tech Zone (Xiangan) Hong Road Industrial Zone No. 9 Framingham Industrial Park Comprehensive Building 1 floor Patentee after: Xiamen Minghan Electric Co., Ltd. Address before: 361009, Fujian, Xiamen Province, Huli District, torch hi tech Zone, Pioneering Park, Albert building north two floor, room N207-N208 Patentee before: Xiamen Minghan Electric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20160711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |