CN103474895B - Device for preventing operation of grounding switch of switch cabinet - Google Patents
Device for preventing operation of grounding switch of switch cabinet Download PDFInfo
- Publication number
- CN103474895B CN103474895B CN201310387765.0A CN201310387765A CN103474895B CN 103474895 B CN103474895 B CN 103474895B CN 201310387765 A CN201310387765 A CN 201310387765A CN 103474895 B CN103474895 B CN 103474895B
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- portable plate
- panel
- switch
- hole
- cabinet
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- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
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- Switch Cases, Indication, And Locking (AREA)
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Abstract
The invention discloses a device for preventing operation of a grounding switch of a switch cabinet. The device comprises a cabinet body, a panel and a grounding knife shaft arranged in the cabinet body, wherein a circuit breaker operating hole and a sealing device thereof are arranged on the panel, a movable plate provided with a through hole is arranged on the sealing device, and the movable plate is linked with the grounding knife shaft through a transmission guy cable. When the grounding switch is switched on, the grounding knife shaft rotates and drives a pull head to move together, at that time, the transmission guy cable pulls the movable plate towards one side to block the circuit breaker operating hole on the panel so as to prevent a handcart operating handle from being inserted into the operating hole to effectively prevent an operator from operating the circuit breaker by mistake at the switching off state of the grounding switch to avoid electrical accidents. When the grounding switch is switched off, the grounding knife shaft rotates, the movable plate resets to a position where the through hole is opposite to the circuit breaker operating hole under the action of an offsetting spring without affecting other operations, so that the application is convenient.
Description
Technical field
The invention belongs to high-tension switch cabinet and prevent misoperation apparatus technical field, especially a kind of device circuit breaker operated when preventing the earthed switch of switch cubicle to be in "on" position.
Background technology
High-tension switch cabinet is widely used in powered, the power transmission of power plant, industrial and mineral enterprises and institutions distribution and electric industry secondary system electric substation.According to the anti-requirement of high-voltage switch gear five, when earthed switch is in "on" position, circuit breaker cart must not enter service position.For meeting this requirement, existing switch cubicle is all provided with guide rail interlock, and circuit breaker cart guide rail is provided with the ligule backing pin linked with earthing, when earthing is in closing position, backing pin stretches out guide rail and stops advancing of circuit breaker cart, enters service position to avoid it.Existing this interlock also exists the defect that misoperation easily occurs, because advancing of circuit breaker cart is screw rod propulsion mode, during use, action bars advances via shake screw rod after the handle hole insertion on panel; Backing pin due to guide rail interlock is positioned at guide rail back segment, and circuit breaker cart is heavier, and when advancing, inertia is large; Although backing pin is in the state of stretching out when earthing closes a floodgate, switch cubicle is through using for many years, and when operating personnel shake into speed, circuit breaker cart can be easy to back down backing pin and enter into service position mistakenly.Existing switch cubicle simultaneously, the handle hole on its panel is open, and operating personnel are easy to, because of misoperation shake circuit breaker cart, cause the serious accident of power supply of operating breaker when switch cabinet outlet end band electricity.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of switch cubicle preventing switch cubicle from operating circuit breaker when earthed switch closes a floodgate and prevents switch operation device with ground.
For solving the problems of the technologies described above, the present invention includes cabinet, panel and be located at the ground connection cutter shaft in cabinet, described panel is provided with breaker operator hole, its design feature is the plugging device that panel is provided with breaker operator hole, ground connection cutter shaft is provided with the pull head that can rotate with it, is provided with transmission bracing wire between pull head and plugging device; Described plugging device comprises portable plate, guide rail and back-moving spring, and guide rail and panel are fastenedly connected, and portable plate is connected in guide rail also to slide with it and connects, and the two ends of back-moving spring are connected with panel and portable plate respectively, and the other end of portable plate is connected with transmission bracing wire; Portable plate is provided with open-work, and when ground connection cutter shaft rotates, portable plate can along slide under the effect of transmission bracing wire, and after the revolution of ground connection cutter shaft, portable plate can be repositioned to the open-work position relative with breaker operator hole under the effect of back-moving spring.
Preferably described pull head is cam bit with bayonet, and transmission bracing wire is software brake cable, and brake cable sleeve pipe is fixed on cabinet and panel, and brake cable two ends are flexibly connected with pull head and portable plate respectively.
Further preferably described portable plate is provided with spacing dop, portable plate is also provided with the perspective mouth that bore is less than breaker operator hole, looks peephole in perspective mouth is provided with.
Beneficial effect of the present invention is: panel of the present invention is provided with breaker operator hole plugging device, and plugging device is provided with the portable plate of band open-work, and portable plate is linked by transmission bracing wire and ground connection cutter shaft.When earthed switch closes a floodgate, ground connection cutter shaft rotates and drives pull head to move together, portable plate pulls to side by now transmission bracing wire, it is made to block breaker operator hole on panel, prevent handcart operating grip update hole, effectively can prevent operating personnel's misoperation circuit breaker under the state of grounding switch tripping, avoid the generation of electric power accident.During grounding switch tripping, ground connection cutter shaft turns round, and portable plate is returned to the open-work position relative with breaker operator hole under the effect of back-moving spring, does not affect other operation, easy to use.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is overall schematic of the present invention;
Fig. 2 is plugging device schematic diagram of the present invention;
Fig. 3 is schematic diagram inside part panels of the present invention.
Embodiment
With reference to accompanying drawing, this switch cubicle prevents that switch operation device with ground comprises cabinet 1, panel 2 and the ground connection cutter shaft 3 that is located in cabinet be connected.The handle hole plugging device 6 that panel 2 is provided with breaker operator hole 21 and is located at inside panel, this plugging device 6 comprises portable plate 65, guide rail 62 and back-moving spring 63; Guide rail 62 and panel 2 are fastenedly connected, and portable plate 65 is connected in guide rail 62 also to slide with it and connects, and the two ends of back-moving spring 63 are connected with panel 2 and portable plate 65 respectively.Ground connection cutter shaft 3 is provided with the pull head 4 that can rotate with it, and pull head 4 is cam bit with bayonet, is connected with transmission bracing wire 5 between the portable plate 65 of pull head 4 and plugging device 6.Transmission bracing wire 5 is software brake cable, and brake cable sleeve pipe is fixed on the bracing wire holder 51 of cabinet 1 and panel 2, and brake cable two ends are flexibly connected with pull head 4 and portable plate 65 respectively, and wherein one end is connected in the bayonet socket of cam bit.Portable plate 65 is provided with the open-work 61 for operating breaker, when ground connection cutter shaft 3 rotates, portable plate 65 can slide along guide rail 62 under the effect of transmission bracing wire 5, it is made to block breaker operator hole 21, and, after ground connection cutter shaft 3 turns round, portable plate 65 can be returned to open-work 61 and breaker operator hole 21 relative position under the effect of back-moving spring 63.
Embodiment illustrated in fig. 2, portable plate 65 is provided with spacing dop 64, and to prevent back-moving spring 63 tension, after causing portable plate 65 to reset, open-work 61 and breaker operator hole 21 misplace.Portable plate 65 is provided with the perspective mouth 611 that bore is less than breaker operator hole 21, looks peephole 612, to observe open circuit indoor conditions after blocking breaker operator hole 21 in perspective mouth 611 is provided with.
Claims (3)
1. switch operation device with ground prevented by a switch cubicle, the ground connection cutter shaft (3) comprising cabinet (1), panel (2) and be located in cabinet, described panel (2) is provided with breaker operator hole (21), it is characterized in that panel (2) is provided with the plugging device (6) of breaker operator hole (21), ground connection cutter shaft (3) is provided with the pull head (4) that can rotate with it, is provided with transmission bracing wire (5) between pull head (4) and plugging device (6); Described plugging device (6) comprises portable plate (65), guide rail (62) and back-moving spring (63), guide rail (62) and panel (2) are fastenedly connected, portable plate (65) is connected in guide rail (62) also to slide with it and connects, the two ends of back-moving spring (63) are connected with panel (2) and portable plate (65) respectively, and the other end of portable plate (65) is connected with transmission bracing wire (5); Portable plate (65) is provided with open-work (61), when ground connection cutter shaft (3) rotates, portable plate (65) can slide along guide rail (62) under the effect of transmission bracing wire (5), and after ground connection cutter shaft (3) revolution, portable plate (65) can be repositioned to open-work (61) position relative with breaker operator hole (21) under the effect of back-moving spring (63).
2. prevent switch operation device with ground according to switch cubicle according to claim 1, it is characterized in that described pull head (4) is for cam bit with bayonet, transmission bracing wire (5) is software brake cable, brake cable sleeve pipe is fixed on cabinet (1) and panel (2), and brake cable two ends are flexibly connected with pull head (4) and portable plate (65) respectively.
3. prevent switch operation device with ground according to the switch cubicle described in claim 1 or 2, it is characterized in that described portable plate (65) is provided with spacing dop (64), portable plate (65) is provided with the perspective mouth (611) that bore is less than breaker operator hole (21), looks peephole (612) in perspective mouth (611) is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310387765.0A CN103474895B (en) | 2013-08-31 | 2013-08-31 | Device for preventing operation of grounding switch of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310387765.0A CN103474895B (en) | 2013-08-31 | 2013-08-31 | Device for preventing operation of grounding switch of switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103474895A CN103474895A (en) | 2013-12-25 |
| CN103474895B true CN103474895B (en) | 2015-07-01 |
Family
ID=49799641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310387765.0A Active CN103474895B (en) | 2013-08-31 | 2013-08-31 | Device for preventing operation of grounding switch of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103474895B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201584677U (en) * | 2009-12-23 | 2010-09-15 | 向荣集团有限公司 | Interlocking device between earthing switch and breaker of switch cabinet |
| CN102005704A (en) * | 2010-11-05 | 2011-04-06 | 童建朋 | Handcart type switching device |
| CN201877341U (en) * | 2010-11-02 | 2011-06-22 | 山东鲁亿通电气设备有限公司 | Interlocking device of ground switch operating mechanism |
| CN102543516A (en) * | 2012-01-10 | 2012-07-04 | 昆明东控电器成套设备有限公司 | Five-prevention system of high-voltage switch cabinet |
| CN203415892U (en) * | 2013-08-31 | 2014-01-29 | 山东亿阳电工有限公司 | Switch cabinet anti-with grounding switch operation device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09320408A (en) * | 1996-05-23 | 1997-12-12 | Terasaki Denki Sangyo Kk | Inter-lock apparatus of circuit breaker housing box |
| KR101126941B1 (en) * | 2010-02-05 | 2012-03-20 | 엘에스산전 주식회사 | Interlock device of breaker and door in switch board |
-
2013
- 2013-08-31 CN CN201310387765.0A patent/CN103474895B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201584677U (en) * | 2009-12-23 | 2010-09-15 | 向荣集团有限公司 | Interlocking device between earthing switch and breaker of switch cabinet |
| CN201877341U (en) * | 2010-11-02 | 2011-06-22 | 山东鲁亿通电气设备有限公司 | Interlocking device of ground switch operating mechanism |
| CN102005704A (en) * | 2010-11-05 | 2011-04-06 | 童建朋 | Handcart type switching device |
| CN102543516A (en) * | 2012-01-10 | 2012-07-04 | 昆明东控电器成套设备有限公司 | Five-prevention system of high-voltage switch cabinet |
| CN203415892U (en) * | 2013-08-31 | 2014-01-29 | 山东亿阳电工有限公司 | Switch cabinet anti-with grounding switch operation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103474895A (en) | 2013-12-25 |
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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 | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID SHANDONG CHANGLE COUNTY POWER SUPPLY CO Effective date: 20150819 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Chengbin Inventor after: Guo Wei Inventor after: Zhang Aiguo Inventor before: Sun Chengbin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SUN CHENGBIN TO: SUN CHENGBIN GUO WEI ZHANG AIGUO |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150819 Address after: 262400 Power Industry Zone, Changle Economic Development Zone, Weifang, Shandong Patentee after: SHANDONG YIYANG ELECTRICAL Co.,Ltd. Patentee after: STATE GRID SHANDONG CHANGLE POWER SUPPLY CO.,LTD. Address before: 262400 Power Industry Zone, Changle Economic Development Zone, Weifang, Shandong Patentee before: SHANDONG YIYANG ELECTRICAL Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Protective grounding switch operating device for switchgear Effective date of registration: 20230629 Granted publication date: 20150701 Pledgee: Changle Shandong rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG YIYANG ELECTRICAL Co.,Ltd. Registration number: Y2023980046724 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20150701 Pledgee: Changle Shandong rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG YIYANG ELECTRICAL Co.,Ltd. Registration number: Y2023980046724 |