CN214203551U - Looped netowrk cabinet prevents mistake and closes ground sword blocking device - Google Patents
Looped netowrk cabinet prevents mistake and closes ground sword blocking device Download PDFInfo
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- CN214203551U CN214203551U CN202120479609.7U CN202120479609U CN214203551U CN 214203551 U CN214203551 U CN 214203551U CN 202120479609 U CN202120479609 U CN 202120479609U CN 214203551 U CN214203551 U CN 214203551U
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- baffle
- electromagnetic lock
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- ground
- cabinet body
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a looped netowrk cabinet prevents mistake and closes ground sword blocking device has: a cabinet body; the ground knife switch gear operating hole is arranged in the cabinet body; the transmission shaft is rotatably arranged on the cabinet body and is provided with a driving mechanism for driving the transmission shaft to rotate; the first end of the ground knife switch baffle is fixedly connected with the transmission shaft, and the ground knife switch baffle can movably open or close the ground knife switch baffle operation hole; the electromagnetic lock is arranged in the cabinet body; electromagnetic lock baffle is connected with electromagnetic lock's telescopic link, and the telescopic link is connected with the electromagnetic lock baffle, and the electromagnetic lock baffle can move about to open or seal ground sword switch and keep off the handle hole, can effectively avoid the electrified emergence of closing the ground sword situation of mistake of looped netowrk cabinet.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment, especially, relate to a looped netowrk cabinet prevents mistake and closes ground sword blocking device.
Background
In the process of implementing the present invention, the inventor finds that the prior art has at least the following problems:
the misoperation prevention locking device of the existing ground knife is only suitable for the condition that the interval is used as the power outlet interval, namely the power direction is from the side of an isolating switch (a busbar side) to the side of an outlet cable where the ground knife is positioned. When the interval is used as the power supply incoming interval condition of the ring main unit (power supply incoming line of the ring main unit), namely the power supply direction is from the outgoing line cable side of the grounding switch to the isolating switch side (busbar side), and the isolating switch is in the open state, the grounding switch operation lock hole is opened, so that the grounding switch can be directly operated, and the condition of electrified mistaken closing of the grounding switch occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a looped netowrk cabinet that can effectively avoid the electrified emergence of mistake closure earthing switch situation of looped netowrk cabinet is prevented mistake and is closed earthing switch blocking device is provided.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a looped netowrk cabinet prevents mistake and closes ground sword blocking device, has:
a cabinet body;
the ground knife switch gear operating hole is arranged in the cabinet body;
the transmission shaft is rotatably arranged on the cabinet body and is provided with a driving mechanism for driving the transmission shaft to rotate;
the first end of the ground knife switch baffle is fixedly connected with the transmission shaft, and the ground knife switch baffle can movably open or close the ground knife switch baffle operation hole;
the electromagnetic lock is arranged in the cabinet body;
the electromagnetic lock baffle is connected with the telescopic rod of the electromagnetic lock, the telescopic rod is connected with the electromagnetic lock baffle, and the electromagnetic lock baffle can be opened or closed movably the ground knife switch keeps off the operation hole.
Still be equipped with isolator handle hole and isolator baffle in the cabinet body, the first end of isolator baffle with transmission shaft fixed connection, the isolator baffle can the activity open or seal the isolator handle hole.
And a switch indicator lamp is also arranged on the electromagnetic lock.
The electromagnetic lock is connected with a protection mutual inductor at the cable pile head through a circuit.
One of the above technical solutions has the following advantages or beneficial effects, and the occurrence of the situation that the ring main unit is electrified and mistakenly closed can be effectively avoided.
Drawings
Fig. 1 is a schematic structural diagram of a locking device of a ring main unit false-closing prevention earthing switch provided in an embodiment of the present invention;
the labels in the above figures are: 1. the cabinet body, 2, isolator handle hole, 3, isolator baffle, 4, transmission shaft, 5, ground sword switch baffle, 6, ground sword switch keep off the handle hole, 7, electromagnetic lock baffle, 8, electromagnetic lock.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, a locking device for preventing the ring main unit from closing the grounding switch by mistake comprises:
a cabinet body;
the ground knife switch gear operating hole is arranged in the cabinet body;
the transmission shaft is rotatably arranged on the cabinet body and is provided with a driving mechanism for driving the transmission shaft to rotate;
the first end of the ground knife switch baffle is fixedly connected with the transmission shaft, and the ground knife switch baffle can movably open or close the ground knife switch baffle operation hole;
the mechanical locking working principle is as follows: the misoperation prevention state of the ground knife is realized by locking the ground knife switch operation lockhole. The method specifically comprises the following steps: the opening and closing of the operation lockhole of the ground knife switch are controlled through the mechanical transmission of the isolating switch. When the state of the isolating switch is closing, the ground knife switch operation lockhole is closed, and the ground knife is operated (namely, the isolating switch can not be closed); when the state of the isolating switch is open, the ground knife switch operation lock hole is opened, the ground knife can be operated, and the ground knife is switched on.
The electromagnetic lock is arranged in the cabinet body;
electromagnetic lock baffle is connected with the telescopic link of electromagnetic lock, and the telescopic link is connected with the electromagnetic lock baffle, and the electromagnetic lock baffle can move about to open or seal ground sword switch and keep off the handle hole.
The electromagnetic induction system and the ground knife are interlocked. Specifically, a group of contacts are added on a protection mutual inductor at the position of an outgoing line interval cable pile head, the other side of an electric shock is connected to an electromagnetic switch, and when the cable pile head is electrified, the electromagnetic switch senses that the cable is electrified through the electric shock. The electromagnetic switch is switched on, and the ground knife switch operation lockhole is locked, so that the situation of mistakenly switching on the ground knife in an electrified state is prevented; when the cable pile head is not electrified, the electromagnetic switch senses that the cable is not electrified through the electric shock. The electromagnetic switch is opened, and the ground knife switch is opened to operate the lock hole, so that the ground knife is allowed to operate.
Through the combination of mechanical locking and electromagnetic locking, the locking device is more stable and reliable.
Still be equipped with isolator handle hole and isolator baffle in the cabinet body, the first end and the transmission shaft fixed connection of isolator baffle, isolator baffle can the activity open or seal isolator handle hole.
The electromagnetic lock is also provided with a switch indicator light.
The electromagnetic lock is connected with a protection mutual inductor at the cable pile head through a circuit.
Directly get the signal from protection mutual-inductor, with the flexible application of electromagnetism shutting to the switching lock, effectively avoid electrified maloperation condition to take place.
After adopting foretell structure, can effectively avoid the electrified emergence of closing the ground sword situation of mistake of looped netowrk cabinet. The electromagnetic switch indicator light can be complementary with the existing electrified indicator of the ring main unit, so that the electrified indicator can not display the electrification condition of the equipment when the electrified indicator is put into the battery for long time outgoing.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (4)
1. The utility model provides a looped netowrk cabinet prevents mistake and closes ground sword blocking device which characterized in that has:
a cabinet body;
the ground knife switch gear operating hole is arranged in the cabinet body;
the transmission shaft is rotatably arranged on the cabinet body and is provided with a driving mechanism for driving the transmission shaft to rotate;
the first end of the ground knife switch baffle is fixedly connected with the transmission shaft, and the ground knife switch baffle can movably open or close the ground knife switch baffle operation hole;
the electromagnetic lock is arranged in the cabinet body;
the electromagnetic lock baffle is connected with the telescopic rod of the electromagnetic lock, the telescopic rod is connected with the electromagnetic lock baffle, and the electromagnetic lock baffle can be opened or closed movably the ground knife switch keeps off the operation hole.
2. The ring main unit false-closing prevention earthing switch locking device according to claim 1, wherein a disconnecting switch operating hole and a disconnecting switch baffle are further arranged in the main unit body, a first end of the disconnecting switch baffle is fixedly connected with the transmission shaft, and the disconnecting switch baffle can movably open or close the disconnecting switch operating hole.
3. The ring main unit anti-misclosing earthing switch locking device according to claim 2, wherein the electromagnetic lock is further provided with a switch indicator lamp.
4. The ring main unit anti-misclosing earthing switch locking device according to claim 3, wherein the electromagnetic lock is connected with a protection transformer at a cable pile head through a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120479609.7U CN214203551U (en) | 2021-03-05 | 2021-03-05 | Looped netowrk cabinet prevents mistake and closes ground sword blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120479609.7U CN214203551U (en) | 2021-03-05 | 2021-03-05 | Looped netowrk cabinet prevents mistake and closes ground sword blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214203551U true CN214203551U (en) | 2021-09-14 |
Family
ID=77640248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120479609.7U Active CN214203551U (en) | 2021-03-05 | 2021-03-05 | Looped netowrk cabinet prevents mistake and closes ground sword blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214203551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334500A (en) * | 2022-02-07 | 2022-04-12 | 水木源华电气有限公司 | Electrified locking anti-misoperation device for isolation knife |
-
2021
- 2021-03-05 CN CN202120479609.7U patent/CN214203551U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334500A (en) * | 2022-02-07 | 2022-04-12 | 水木源华电气有限公司 | Electrified locking anti-misoperation device for isolation knife |
| CN114334500B (en) * | 2022-02-07 | 2024-06-04 | 水木源华电气有限公司 | Isolation knife electrified locking misoperation-preventing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tang Meibing Inventor after: Zhu Min Inventor after: Zhu Wei Inventor after: Liu Qiang Inventor after: Li Meng Inventor after: Wang Li Inventor after: Huang Lin Inventor after: Zhu Junmin Inventor after: Zhang Zhiyin Inventor before: Tang Meibing Inventor before: Zhu Min Inventor before: Zhu Wei Inventor before: Liu Qiang Inventor before: Li Meng Inventor before: Wang Li Inventor before: Huang Lin Inventor before: Zhu Junmin Inventor before: Zhang Zhiyin |
|
| CB03 | Change of inventor or designer information |