CN110112019B - Anti-interlock device of high tension switchgear - Google Patents
Anti-interlock device of high tension switchgear Download PDFInfo
- Publication number
- CN110112019B CN110112019B CN201910264356.9A CN201910264356A CN110112019B CN 110112019 B CN110112019 B CN 110112019B CN 201910264356 A CN201910264356 A CN 201910264356A CN 110112019 B CN110112019 B CN 110112019B
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- Prior art keywords
- interlocking
- horizontal
- cabinet door
- voltage switch
- rear cabinet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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Abstract
The invention discloses a high-voltage switch cabinet anti-interlocking device, which comprises a horizontal slide way arranged at the top of a high-voltage switch cabinet, wherein the horizontal slide way is vertically arranged with an interlocking piece, a vertical slide rod and a return spring are arranged in the horizontal slide way, the return spring is horizontally arranged at the end parts of the vertical slide rod and the horizontal slide way far away from a back cabinet door, a horizontal stop rod is arranged at the bottom of the vertical slide rod, the horizontal stop rod is arranged at the side surface of the interlocking piece and is vertical to the interlocking piece, a push rod is arranged at the top of the inner side surface of the back cabinet door, and the; the anti-interlocking device of the high-voltage switch cabinet can reliably realize the anti-interlocking of the back cabinet door plate, and can carry out brake opening operation on the grounding switch only when the back cabinet door is closed, so that misoperation is prevented, and potential safety hazards caused by misoperation are effectively prevented.
Description
Technical Field
The invention belongs to the technical field of high-voltage switch cabinet parts, and particularly relates to a high-voltage switch cabinet anti-interlocking device.
Background
In the existing electric power system, a rear cabinet door interlock of a high-voltage switch cabinet mainly comprises a rear cabinet door plate, a blocking piece, a side plate, a grounding switch large shaft and an interlocking piece, wherein the rear cabinet door interlock mainly rotates by operating the grounding switch large shaft, the interlocking piece is driven to rotate by the rotation of the grounding switch large shaft, namely the interlocking piece is turned inwards to be in a horizontal state from a vertical state, and when the rear cabinet door plate is closed, the rotating interlocking piece is just clamped and turned between the blocking piece and the rear cabinet door plate, so that the purpose of interlocking the rear cabinet door plate is realized. Such structure, back cabinet door interlocking can realize that earthing switch is under the separating brake state, and back cabinet door board can not opened, nevertheless under the condition that back cabinet door board was not closed, earthing switch still can carry out the divide-shut brake operation, is not conform to anti-interlocking functional requirement, can't prevent the maloperation, has serious potential safety hazard.
Disclosure of Invention
The invention aims to provide a high-voltage switch cabinet anti-interlocking device which is simple in structure and convenient to install, can reliably realize anti-interlocking of a rear cabinet door plate, can perform brake-off operation on a grounding switch only when the rear cabinet door is closed, prevents misoperation and effectively prevents potential safety hazards caused by misoperation.
The technical scheme of the invention is that the anti-interlocking device of the high-voltage switch cabinet comprises the high-voltage switch cabinet and an interlocking device, wherein the high-voltage switch cabinet comprises a rear cabinet door, the interlocking device comprises an interlocking piece and a large grounding switch shaft fixed with the interlocking piece, the interlocking piece is arranged towards the rear cabinet door, the large grounding switch shaft and the interlocking piece are fixed on the side surface far away from the rear cabinet door, the anti-interlocking device comprises a horizontal slideway arranged at the top of the high-voltage switch cabinet, the horizontal slideway is vertically arranged with an interlocking piece, a vertical sliding rod and a return spring are arranged in the horizontal slideway, the reset spring is horizontally arranged at the end parts of the vertical slide bar and the horizontal slide way far away from the rear cabinet door, the bottom of the vertical slide bar is provided with a horizontal stop lever, the horizontal stop lever is arranged on the side face of the interlocking piece and is perpendicular to the interlocking piece, a push rod is arranged at the top of the inner side face of the rear cabinet door, and the push rod is horizontally arranged and faces the vertical sliding rod.
Preferably, the push rod comprises a fixed part and a rotating part, the fixed part is fixedly connected with the rear cabinet door, a V-shaped fork is arranged at the end part of the rotating part, which is far away from the rear cabinet door, the V-shaped fork can realize 90-degree rotation, and the push rod is arranged at the upper position of the interlocking piece.
Preferably, the distance between the inner opening of the V-shaped fork of the push rod and the rear cabinet door is greater than the horizontal distance between the end, close to the rear cabinet door, of the horizontal slide way and the interlocking piece.
Preferably, the distance between the horizontal stop lever and the horizontal slide way is greater than the vertical distance between the top of the interlocking piece and the horizontal slide way.
Preferably, the length of the horizontal stop lever is larger than the distance between the interlocking piece and the rear cabinet door.
Preferably, the length of the horizontal slideway is greater than the length of the push rod.
According to the technical scheme, during the opening of the rear cabinet door, the push rod withdraws from the high-voltage switch cabinet along with the rear cabinet door, the vertical push rod resets under the action of the reset spring, the horizontal stop lever resets to block the interlocking piece, so that the interlocking piece cannot rotate, and the reverse interlocking is realized; when the back cabinet door is closed, the push rod enters the high-voltage switch cabinet and pushes the vertical slide rod, the vertical slide rod drives the horizontal blocking rod to move forwards, the horizontal blocking rod is pushed away from the side face of the interlocking piece, the interlocking piece is prevented from being blocked by the horizontal blocking rod, and the interlocking piece can rotate freely at the moment, so that interlocking is realized.
The technical scheme of the invention has the beneficial effects that:
according to the technical scheme, the anti-interlocking device of the high-voltage switch cabinet can reliably realize the anti-interlocking of the rear cabinet door plate, and the grounding switch can be subjected to brake-off operation only when the rear cabinet door is closed, so that misoperation is prevented, and potential safety hazards caused by misoperation are effectively prevented.
Drawings
FIG. 1 is a perspective view of a high-voltage switch cabinet anti-interlocking device according to the technical scheme of the invention,
FIG. 2 is a schematic diagram of the anti-interlocking state of the anti-interlocking device of the high-voltage switch cabinet according to the technical scheme of the invention,
FIG. 3 is a schematic diagram of a high-voltage switch cabinet anti-interlocking device capable of realizing an interlocking state according to the technical scheme of the invention,
fig. 4 is a schematic view of the structure of the push rod.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.
As shown in fig. 1 to 4, the technical scheme of the invention is that a high-voltage switch cabinet anti-interlocking device comprises a high-voltage switch cabinet 7 and an interlocking device, the high-voltage switch cabinet comprises a rear cabinet door 1, the interlocking device comprises an interlocking piece 5 and a grounding switch large shaft 8 fixed with the interlocking piece 5, the grounding switch large shaft 8 drives the interlocking piece 5 to rotate to realize normal interlocking, the interlocking piece 5 is arranged towards the rear cabinet door 1, the grounding switch large shaft 8 and the interlocking piece 5 are fixed on the side far away from the rear cabinet door 1, the anti-interlocking device comprises a horizontal slide 6 arranged on the top of the high-voltage switch cabinet 7, the horizontal slide 6 and the interlocking piece 5 are vertically arranged, a vertical slide rod 2 and a return spring 9 are arranged in the horizontal slide 6, the return spring 9 is horizontally arranged at the end far away from the rear cabinet door 1 of the vertical slide rod 2 and the horizontal slide 6, a horizontal stop rod 4 is arranged at, the horizontal stop lever 4 is arranged on the side face of the interlocking piece 5 and is perpendicular to the interlocking piece 5, the push rod 3 is arranged at the top of the inner side face of the rear cabinet door 1, the push rod 3 is horizontally arranged and faces the vertical sliding rod 2, the push rod 3 comprises a fixed part and a rotating part, the fixed part is fixedly connected with the rear cabinet door, a V-shaped fork 10 is arranged at the end part of the rotating part, which is far away from the rear cabinet door, the V-shaped fork 10 can rotate 90 degrees, the push rod 3 is arranged at the upper part of the interlocking piece 5, after the rear cabinet door is opened, the V-shaped fork 1090 rotates, the V-shaped fork 10 can support the rear cabinet door, the rear cabinet door is prevented from being closed, the safety protection effect is further achieved, the problem of mistaken closing of the rear cabinet door is avoided, the distance between the V-shaped fork inner opening part of the push rod 3 and the rear cabinet door 1 is larger than the horizontal distance, the distance between the horizontal stop lever 4 and the horizontal slide 6 is larger than the vertical distance between the top of the interlocking piece 5 and the horizontal slide 6, the length of the horizontal stop lever 4 is larger than the distance between the interlocking piece 5 and the rear cabinet door 1, and the length of the horizontal slide 6 is larger than the length of the push rod 3.
As shown in fig. 1 to 4, according to the anti-interlocking device for the high-voltage switch cabinet in the technical scheme of the invention, when a back cabinet door 1 is opened, a push rod 3 is far away from a high-voltage switch cabinet 7, meanwhile, the end part of the push rod 3 withdraws from a vertical slide rod 2, the vertical slide rod 2 resets under the resetting action of a reset spring 9, at the moment, a horizontal stop rod 4 moves to the side surface of an interlocking piece 5 to block the interlocking piece 5, so that the interlocking piece 5 cannot rotate, anti-interlocking is realized, interlocking operation in operation is effectively avoided, and safety is ensured; when the back cabinet door 1 is closed, the push rod 3 fixed on the back cabinet door 1 moves towards the inside of the high-voltage switch cabinet, the vertical slide rod 3 enters the V-shaped fork at the end part of the push rod 3, the push rod 3 pushes the vertical slide rod 2, the vertical slide rod 2 drives the horizontal stop lever 4 to move forwards, the horizontal stop lever 4 leaves the side surface of the interlocking piece 5, and the interlocking piece 5 can rotate at the moment, so that interlocking can be realized.
Technical solution of the invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive method concept and technical solution, or to apply the inventive concept and technical solution to other occasions without modification.
Claims (4)
1. A high-voltage switch cabinet anti-interlocking device comprises a high-voltage switch cabinet and an interlocking device, wherein the high-voltage switch cabinet comprises a rear cabinet door, the interlocking device comprises an interlocking piece and a large grounding switch shaft fixed with the interlocking piece, the interlocking piece is arranged towards the rear cabinet door, the large grounding switch shaft and the interlocking piece are fixed on the side surface far away from the rear cabinet door, it is characterized in that the anti-interlocking device comprises a horizontal slideway arranged at the top of the high-voltage switch cabinet, the horizontal slideway is vertically arranged with an interlocking piece, a vertical sliding rod and a return spring are arranged in the horizontal slideway, the reset spring is horizontally arranged at the end parts of the vertical slide bar and the horizontal slide way far away from the rear cabinet door, the bottom of the vertical slide bar is provided with a horizontal stop lever, the horizontal stop lever is arranged on the side face of the interlocking piece and is perpendicular to the interlocking piece, a push rod is arranged at the top of the inner side face of the rear cabinet door, and the push rod is horizontally arranged and faces the vertical sliding rod;
the push rod comprises a fixed part and a rotating part, the fixed part is fixedly connected with the rear cabinet door, a V-shaped fork is arranged at the end part of the rotating part, which is far away from the rear cabinet door, the V-shaped fork can realize 90-degree rotation, and the push rod is arranged at the upper part of the interlocking piece;
the distance between the inner opening part of the V-shaped fork of the push rod and the door of the rear cabinet is larger than the horizontal distance between the end of the horizontal slide way close to the door of the rear cabinet and the interlocking piece.
2. The anti-interlock device for a high voltage switch cabinet according to claim 1, wherein the distance between the horizontal stop lever and the horizontal slide is greater than the vertical distance between the top of the interlock piece and the horizontal slide.
3. The anti-interlock device for a high voltage switch cabinet according to claim 1, wherein the length of the horizontal bar is greater than the distance between the interlock tab and the rear cabinet door.
4. The anti-interlocking device of the high-voltage switch cabinet according to claim 1, wherein the length of the horizontal slideway is greater than that of the push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910264356.9A CN110112019B (en) | 2019-04-03 | 2019-04-03 | Anti-interlock device of high tension switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910264356.9A CN110112019B (en) | 2019-04-03 | 2019-04-03 | Anti-interlock device of high tension switchgear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110112019A CN110112019A (en) | 2019-08-09 |
| CN110112019B true CN110112019B (en) | 2020-10-02 |
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ID=67485015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910264356.9A Active CN110112019B (en) | 2019-04-03 | 2019-04-03 | Anti-interlock device of high tension switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110112019B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908424B (en) * | 2010-07-19 | 2012-09-05 | 芜湖明远电力设备制造有限公司 | Anti-locking mechanism of switch apparatus |
| US8927887B2 (en) * | 2013-01-08 | 2015-01-06 | Eaton Corporation | Variable depth circuit interrupter assembly with interlock |
| CN106206117A (en) * | 2015-04-29 | 2016-12-07 | 江苏中自电气技术有限公司 | A kind of rear door of switch cabinet novel trans blocking device |
| CN106158455B (en) * | 2016-08-30 | 2018-11-27 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of anti-interlock of high-tension switch cabinet |
| CN108615628A (en) * | 2016-12-10 | 2018-10-02 | 镇江凯勒电力科技有限公司 | A kind of high-voltage switch cabinet grounding switch interlock |
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2019
- 2019-04-03 CN CN201910264356.9A patent/CN110112019B/en active Active
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| Publication number | Publication date |
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| CN110112019A (en) | 2019-08-09 |
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