CN107293426A - A kind of ring main unit cabinet door interlock - Google Patents
A kind of ring main unit cabinet door interlock Download PDFInfo
- Publication number
- CN107293426A CN107293426A CN201710617910.8A CN201710617910A CN107293426A CN 107293426 A CN107293426 A CN 107293426A CN 201710617910 A CN201710617910 A CN 201710617910A CN 107293426 A CN107293426 A CN 107293426A
- Authority
- CN
- China
- Prior art keywords
- interlock plate
- interlock
- cam
- operating shaft
- swing arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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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- Patch Boards (AREA)
Abstract
A kind of ring main unit cabinet door interlock, including the first interlock plate, the second interlock plate；The second interlock plate upper end forms overlapping region with the first interlock plate lower end, second interlock plate is located at overlapping region groove formed below, disconnecting switch division operating shaft, earthed switch division operating shaft are arranged in parallel with groove respectively, cam is socketed in the earthed switch division operating shaft, doorframe upper end-face edge, which is located at below cam, sets lock sheath, lock sheath and cam engagement, pinned by the rotation of cam or unblock lock sheath, doorframe upper end-face edge is set up in parallel the 3rd interlock plate that can be moved left and right with lock sheath.By setting cam in earthed switch division operating shaft, cam coordinates with lock sheath, and sets the 3rd interlock plate that can be moved left and right, and realizes switch and the interlocking of cabinet door, prevents maloperation；The present invention is simple in construction, easy to operate.
Description
Technical field
The present invention relates to technical field of electric appliances, and in particular to a kind of ring main unit cabinet door interlock.
Background technology
Ring main unit (Ring Main Unit) is that one group of transmission ＆ distribution electrical equipment (high-tension switch gear) is mounted in metal or non-gold
Category insulation cabinet body is interior or makes the electrical equipment of assembled compartment ring network power supplying units, and its core is using on-load switch and melts
Disconnected device, has the advantages that simple in construction, small volume, price are low, can improve power supply parameter and performance and power supply safety.It is wide
The general power distribution station for being used in the load centers such as Urban Residential District, skyscraper, large public building, factory and enterprise and box
In transformer station.
The reliability of ring main unit cabinet door interlocking is improved, needs what emphasis considered when preventing maloperation to be always ring main unit design.
The content of the invention
The present invention is in order to solve the above technical problems, provide a kind of ring main unit cabinet door interlock.
The technical problems to be solved by the invention are realized using following technical scheme.
A kind of ring main unit cabinet door interlock, including the first interlock plate, the second interlock plate；The first interlock plate upper end with
Breaker division position swing arm rotates connection, and the first interlock plate lower end is located above the swing arm of isolation ground connection division position, and described the
Two interlock plate upper ends are formed with the first interlock plate lower end is located at the first interlock plate, second in overlapping region, the overlapping region
First chute, the second chute are set respectively on jam plate, and fixing axle passes through first chute, the second chute, the second interlock plate position
In overlapping region groove formed below, disconnecting switch division operating shaft, earthed switch division operating shaft are flat with groove respectively
Row arrangement, sets isolation ground connection division position rotation between disconnecting switch division operating shaft and earthed switch division operating shaft
Bar, the isolation ground connection division position swing arm is rotated with the second interlock plate to be connected, and is socketed in the earthed switch division operating shaft
Cam, doorframe upper end-face edge, which is located at below cam, sets lock sheath, lock sheath and cam engagement, pins or unlocks by the rotation of cam
Sheath is locked, doorframe upper end-face edge is set up in parallel the 3rd interlock plate that can be moved left and right with lock sheath.
It is further preferred that the first interlock plate upper end and breaker division position swing arm, isolation ground connection division position
Swing arm is rotated by fixed sheath and is connected respectively with the second interlock plate.
It is further preferred that the isolation ground connection division position swing arm and the second interlock plate tie point are located at the second interlock plate
Upper groove centre position.
Beneficial effects of the present invention are：By setting cam in earthed switch division operating shaft, cam coordinates with lock sheath,
And the 3rd interlock plate that can be moved left and right is set, switch and the interlocking of cabinet door are realized, maloperation is prevented；The present invention is simple in construction,
It is easy to operate.
Brief description of the drawings
Fig. 1 is grounding switch tripping view of the present invention；
Fig. 2 is earthed switch "on" position schematic diagram of the present invention；
Fig. 3 is earthed switch combined floodgate cabinet door open mode schematic diagram of the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
As Figure 1-3, a kind of ring main unit cabinet door interlock, including the first interlock plate 2, the second interlock plate 4；First
The upper end of jam plate 2 rotates with breaker division position swing arm 1 and is connected, and the lower end of the first interlock plate 2 is located at isolation ground connection division position rotation
The top of bar 6, the upper end of the second interlock plate 4 is formed with the lower end of the first interlock plate 2 is located at first in overlapping region, the overlapping region
First chute 3, the second chute 5 are set respectively on jam plate 2, the second interlock plate 4, and fixing axle 14 passes through the first chute 3, the second chute
5, the second interlock plate 4 is located at overlapping region groove 13 formed below, disconnecting switch division operating shaft 6, earthed switch division
Operating shaft 9 is arranged in parallel with groove 10 respectively, between disconnecting switch division operating shaft 6 and earthed switch division operating shaft 9
Isolation ground connection division position swing arm 7 is set, and isolation ground connection division position swing arm 7 is connected with the rotation of the second interlock plate 4, preferably every
It is located at the centre position of 4 upper groove of the second interlock plate 10 from ground connection division position swing arm 8 and the tie point of the second interlock plate 4, ground connection is opened
Close and cam 8 is socketed in division operating shaft 9, doorframe upper end-face edge is located at the lower section of cam 8 and sets lock sheath 11, and lock sheath 11 is matched somebody with somebody with cam 8
Close, pinned by the rotation of cam 8 or unblock lock sheath 11, doorframe upper end-face edge is set up in parallel the 3rd interlock plate 10 with lock sheath 11.
During interruption maintenance, earthed switch closes a floodgate, and earthed switch division operating shaft 9 turns clockwise with moving cam 8, locks sheath 11
The lockhole for moving up and being exited in cabinet door 12 under the action of the spring, cabinet door lock is released, and now cabinet door 12 can be opened, and cabinet door 12 is opened
Afterwards, the 3rd interlock plate 10, which is moved to left, covers earthed switch division operating shaft 9 and prevents it from operating, so that earthed switch can not divide
Lock, prevents cabinet door 12 from opening mistiming Operation switch power transmission, prevents between personnel's mistakenly entering into charged.
When maintenance finishes power transmission operation, cabinet door 12 is first closed, cabinet door 12 promotes the 3rd interlock plate 10 to move to right, open ground connection and open
Division operating shaft 9 is closed, during grounding switch tripping, earthed switch division operating shaft 9 promotes lock sheath with the rotate counterclockwise of moving cam 8
11 are moved down, and in the lockhole of the lock insertion cabinet door 12 of sheath 11, the locking of cabinet door 12 can not be opened, and prevent the powered opening cabinet door of cable vault's cable
Generation Danger Electric shock risk.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and that described in above-described embodiment and specification is only the present invention
Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also have it is various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (3)
1. a kind of ring main unit cabinet door interlock, it is characterised in that：Including the first interlock plate, the second interlock plate；Described first
Jam plate upper end rotates with breaker division position swing arm and is connected, and the first interlock plate lower end is located on the swing arm of isolation ground connection division position
Side, the second interlock plate upper end is formed in overlapping region, the overlapping region with the first interlock plate lower end is located at the first interlocking
First chute, the second chute are set respectively on plate, the second interlock plate, and fixing axle passes through first chute, the second chute, second
Interlock plate is located at overlapping region groove formed below, disconnecting switch division operating shaft, earthed switch division operating shaft difference
It is arranged in parallel with groove, isolation ground connection division is set between disconnecting switch division operating shaft and earthed switch division operating shaft
Position swing arm, the isolation ground connection division position swing arm is rotated with the second interlock plate to be connected, the earthed switch division operating shaft
Upper socket cam, doorframe upper end-face edge, which is located at below cam, sets lock sheath, lock sheath and cam engagement, is pinned by the rotation of cam
Or unblock lock sheath, doorframe upper end-face edge and lock sheath are set up in parallel the 3rd interlock plate that can be moved left and right.
2. a kind of ring main unit cabinet door interlock as claimed in claim 1, it is characterised in that：The first interlock plate upper end with
Breaker division position swing arm, isolation ground connection division position swing arm is rotated by fixed sheath and is connected respectively with the second interlock plate.
3. a kind of ring main unit cabinet door interlock as claimed in claim 1 or 2, it is characterised in that：The isolation ground connection division
Position swing arm and the second interlock plate tie point are located at the second interlock plate upper groove centre position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710617910.8A CN107293426B (en) | 2017-07-26 | 2017-07-26 | A kind of ring network cabinet cabinet door interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710617910.8A CN107293426B (en) | 2017-07-26 | 2017-07-26 | A kind of ring network cabinet cabinet door interlock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107293426A true CN107293426A (en) | 2017-10-24 |
| CN107293426B CN107293426B (en) | 2019-03-08 |
Family
ID=60102743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710617910.8A Expired - Fee Related CN107293426B (en) | 2017-07-26 | 2017-07-26 | A kind of ring network cabinet cabinet door interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107293426B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731615A (en) * | 2017-11-13 | 2018-02-23 | 江苏大全高压开关有限公司 | A kind of new isolation for cable branch box, earthed switch |
| CN114420479A (en) * | 2022-01-21 | 2022-04-29 | 平高集团有限公司 | Cable chamber door interlocking structure of upper three-station ring main unit |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB782118A (en) * | 1954-07-22 | 1957-09-04 | Gen Electric Co Ltd | Improvements in or relating to electric switching arrangements |
| CN201820662U (en) * | 2010-09-26 | 2011-05-04 | 万控（天津）电气有限公司 | Lock hook structure for interlocking device at rear door of high-tension switch cabinet |
| CN203326459U (en) * | 2013-06-21 | 2013-12-04 | 无锡中科电气设备有限公司 | Anti-misoperation cabinet mechanical interlocking device |
| CN103578817A (en) * | 2012-08-03 | 2014-02-12 | 广东米勒电气有限公司 | Interlocking device for disconnector and circuit breaker |
| CN204011143U (en) * | 2014-09-04 | 2014-12-10 | 日升集团有限公司 | Switch cabinet door interlocking mechanism |
| CN204067109U (en) * | 2014-08-25 | 2014-12-31 | 广东阿尔派电力科技股份有限公司 | Misoperation-proof locking device |
| CN204179037U (en) * | 2014-10-30 | 2015-02-25 | 成都科星电力电器有限公司 | A kind of breaker misoperation-preventing closes interlock |
| CN105140064A (en) * | 2015-07-29 | 2015-12-09 | 国家电网公司 | Interlocking device for isolation switch, earthing switch and circuit breaker |
| CN205304070U (en) * | 2015-12-28 | 2016-06-08 | 安徽标先电气股份有限公司 | Gu seal insulating switchgear's cabinet door interlock |
| CN206098258U (en) * | 2016-10-11 | 2017-04-12 | 浙江时通电气制造有限公司 | Compact high tension switchgear earthing switch mechanism and lower cabinet door interlocking device |
-
2017
- 2017-07-26 CN CN201710617910.8A patent/CN107293426B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB782118A (en) * | 1954-07-22 | 1957-09-04 | Gen Electric Co Ltd | Improvements in or relating to electric switching arrangements |
| CN201820662U (en) * | 2010-09-26 | 2011-05-04 | 万控（天津）电气有限公司 | Lock hook structure for interlocking device at rear door of high-tension switch cabinet |
| CN103578817A (en) * | 2012-08-03 | 2014-02-12 | 广东米勒电气有限公司 | Interlocking device for disconnector and circuit breaker |
| CN203326459U (en) * | 2013-06-21 | 2013-12-04 | 无锡中科电气设备有限公司 | Anti-misoperation cabinet mechanical interlocking device |
| CN204067109U (en) * | 2014-08-25 | 2014-12-31 | 广东阿尔派电力科技股份有限公司 | Misoperation-proof locking device |
| CN204011143U (en) * | 2014-09-04 | 2014-12-10 | 日升集团有限公司 | Switch cabinet door interlocking mechanism |
| CN204179037U (en) * | 2014-10-30 | 2015-02-25 | 成都科星电力电器有限公司 | A kind of breaker misoperation-preventing closes interlock |
| CN105140064A (en) * | 2015-07-29 | 2015-12-09 | 国家电网公司 | Interlocking device for isolation switch, earthing switch and circuit breaker |
| CN205304070U (en) * | 2015-12-28 | 2016-06-08 | 安徽标先电气股份有限公司 | Gu seal insulating switchgear's cabinet door interlock |
| CN206098258U (en) * | 2016-10-11 | 2017-04-12 | 浙江时通电气制造有限公司 | Compact high tension switchgear earthing switch mechanism and lower cabinet door interlocking device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731615A (en) * | 2017-11-13 | 2018-02-23 | 江苏大全高压开关有限公司 | A kind of new isolation for cable branch box, earthed switch |
| CN107731615B (en) * | 2017-11-13 | 2020-06-16 | 江苏大全高压开关有限公司 | Novel isolating and grounding switch for cable branch box |
| CN114420479A (en) * | 2022-01-21 | 2022-04-29 | 平高集团有限公司 | Cable chamber door interlocking structure of upper three-station ring main unit |
| CN114420479B (en) * | 2022-01-21 | 2023-11-07 | 平高集团有限公司 | Cable chamber door interlocking structure of upper three-station ring main unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107293426B (en) | 2019-03-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190308 Termination date: 20210726 |