CN107359534A - A kind of special valve interlock of SF6 breakers - Google Patents
A kind of special valve interlock of SF6 breakers Download PDFInfo
- Publication number
- CN107359534A CN107359534A CN201710730669.XA CN201710730669A CN107359534A CN 107359534 A CN107359534 A CN 107359534A CN 201710730669 A CN201710730669 A CN 201710730669A CN 107359534 A CN107359534 A CN 107359534A
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- China
- Prior art keywords
- valve
- bull stick
- breaker
- plate
- hole
- 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.)
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Links
- 230000009471 action Effects 0.000 claims abstract description 32
- 244000309464 bull Species 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 description 11
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides the special valve interlock of SF6 breakers, it includes valve mechanism, link gear, limit panel, baffle plate, valve mechanism includes the door-plate with handle hole, valve, connecting lever, bull stick, when valve blocks manipulation hole, handle hole can not be operated, when breaker is in closing position, baffle plate can limit link gear action, the complete action of valve can not be completed, during separating brake, valve will not block handle hole, closing switch button can be sheltered from by limiting panel simultaneously, realize safety interlocking, compared to existing same type device, on the premise of action message and perfect in shape and function is ensured, simplify interlock, interlocked and linked using Purely mechanical, reliable in action safety, flexibly, it is easy to safeguard, it is easily operated.
Description
Technical field
The present invention relates to power system switching on/off handcart equipment technical field, specially a kind of special valve connection of SF6 breakers
Locking device.
Background technology
To avoid power transmission scene because the maloperation of operating personnel causes breaker closing, so as to ensure the safety of electric power system
Run, latching electromagnet is installed behind the floodgate semiaxis of the valve interlocking mechanism of existing indoor HVAC SF6 breakers, closed
Lock electromagnet not it is electric when, then go locking floodgate semiaxis by the electromagnet, so as to can not close a floodgate, latching electromagnet obtain it is electric after, close
Lock releases, so as to close a floodgate.Although the interlocking mechanism is feasible in theory because parts are various, to machining accuracy and
Assembly precision requires high, along with overall construction intensity is inadequate, once occur latching electromagnet not it is electric when, operating personnel remove hand
Dynamic to press closing switch button, then occurring can not reset because deforming latching electromagnet caused by by external force and interlock,
It is ineffective so as to which whole linkage structure be destroyed, or even there is the consequence for burning out closing coil.Safe operation to breaker
Hidden danger is brought, greatly inconvenience and economic loss are caused to locality life and production.
The content of the invention
For the problems of existing valve crosslinking lock scheme and hidden danger, it is special that spy of the present invention provides a kind of SF6 breakers
With valve interlock, on the premise of action message and perfect in shape and function is ensured, interlock is simplified, is interlocked using Purely mechanical
Linkage, reliable in action, flexibly, be easy to safeguard, it is easily operated.
For achieving the above object, the technical solution used in the present invention is：
A kind of special valve interlock of SF6 breakers, the device are arranged on SF6 circuit breaker carts, it include valve mechanism,
Link gear, panel, baffle plate are limited, valve mechanism includes door-plate, valve, connecting lever, bull stick with handle hole, and door-plate passes through curved
Plate I is fixedly connected with breaker frame, and door-plate is provided with vertical chute, and valve is connected with slide, and valve moves up and down
Can " locked in " operation hole, one end of valve and connecting lever is hinged, and connecting lever is fixedly connected with bull stick, and bull stick is arranged in frame and and frame
Rotation connection is slided, valve movement drives connecting lever to rotate bull stick；Baffle plate is fixedly connected with the combined floodgate pull bar in breaker；Linkage
Mechanism includes gag lever post, action bars, flap, and gag lever post is fixedly connected with bull stick, with bar rotation, during breaker closing, and baffle plate
It is arranged in the rotary motion trace of gag lever post, limits the rotational angle of spacing thick stick, during breaker open operation position, baffle plate moves with combined floodgate pull bar
Dynamic to leave gag lever post motion track, gag lever post freely rotates；It is hinged in the middle part of flap with frame, is provided at both ends with bar shaped slide opening, is grasped
Make bar to be connected with the slide opening of flap one end by pivot pin, the other end slide opening of flap is connected by pivot pin with limiting panel；Limit
Panel is slided up and down with frame and is connected, and is limited panel upper and lower displacement and is blocked closing switch button.
Described handle hole is connected with handcart movement leading screw, can rival car shifting when only handle hole is not blocked by valve
Dynamic leading screw is operated.
Described valve is made up of the handle panels and shutter of integrally connected, and shutter is connected with slide, and is slided
Groove is spacing, and valve, which is moved to upper end or lower end, can shelter from handle hole.
Described bull stick is square bull stick, is connected by bearing block with frame；Flap is connected by bent plate II with frame,.
Described gag lever post, action bars are fixedly connected by rod set I, rod set II with bull stick respectively, gag lever post and action bars
The surfaces of revolution it is parallel.
Described limits panel as square plate, and avris is provided with two sliding eyes, and company is slided up and down by alignment pin and frame
Connect, shift length is limited by pivot pin；Described restriction panel is provided with combined floodgate hole and separating brake hole, and separating brake hole is bar hole, no matter
Panel be in where, all without separating brake shift knob is blocked, combined floodgate hole is circular port, and diameter is pressed slightly larger than closing switch
Button, panel is limited when reaching defined height, will not just block closing switch button.
When breaker is in closing position（Such as Fig. 1）, baffle plate is in position during combined floodgate together with combined floodgate pull bar one, now
If manual-up pull-up valve 1, connecting lever 2 can rotate clockwise, now square bull stick 4, rod set I 6, gag lever post 7, rod set II 5 and
Action bars 10 can be with connecting lever 2 together along rotating clockwise, and after going to a certain degree, gag lever post 7 can be blocked by baffle plate, so as to lead
Activation door 1 can not be further continued for being pulled upwardly, and now valve 1 is in half pull-up state（Such as Fig. 2）, handcart movement leading screw 9 is not
It is completely exposed, specific purpose tool can not coordinate with leading screw, can not more shake into breaker is shaken out, so as to realize breaker in "on" position
When, valve 1 can not be opened completely, can not shake into breaker is shaken out, to avoid breaker from removing breaker in transmission operation
Caused personal injury and property loss.
And if only if when breaker is in open position（Such as Fig. 3）, when now baffle plate is in separating brake together with combined floodgate pull bar one
Position, it is manual-up can be with pull-up valve 1 to full open position, connecting lever 2 can rotate clockwise with valve 1, now square
Bull stick 4, rod set I 6, gag lever post 7, rod set II 5 and action bars 10 can together edge be clockwise to position shown in Fig. 3 with connecting lever 2,
So as to drive flap 12 to turn to Fig. 3 positions by Fig. 2 positions counterclockwise, panel 16 is now limited under the drive of flap 12, to
Upper motion, and closing switch button is blocked, and handcart movement leading screw 9 blocking releases, and handcart can be in specific purpose tool
Drive under can shake into shaking out breaker, when being in gate-dividing state so as to breaker of realizing that and if only if, valve 1 is opened completely
Afterwards, can shake into shaking out breaker, but after valve is opened, interlocking limits panel and just blocks closing switch button, and breaker is just
Closing operation can not be carried out again, and to avoid in 1 full open position of valve, operating personnel's maloperation is by breaker closing and incites somebody to action
Handcart is shaken to operating position, if now cabinet bus is powered, can cause very big personal injury and property loss.
In summary, the valve interlock realizes breaker in "on" position, and valve can not be opened completely, can not
Shake into breaker is shaken out, and if only if when breaker is in gate-dividing state, after valve is opened completely, can shake into shaking out open circuit
Device, but after valve opening, interlocking bent plate just blocks closing switch button, and breaker just can not carry out closing operation again, to keep away
Exempt from personal injury and property loss caused by Field Force's maloperation breaker, while also ensure that the peace of electric power system
Row for the national games.
Beneficial effects of the present invention are：
The parts of all moving parts of valve interlock are finally all directly connected with valve blocking lever, valve blocking lever
Action again directly by valve drive, therefore the valve interlock act only according to the direction of action of valve and it is anticipated that side
To action, so as to realize breaker in "on" position, little moveable door can not be opened, and can not shake into breaker is shaken out, only when disconnected
When road device is in gate-dividing state, little moveable door can be opened and can shaken into shaking out breaker, but little moveable door open after breaker just
Closing operation can not be carried out again.It is using most common steel plate and round steel due to forming the parts of the valve interlock
It is processed into, simple for structure, the process-cycle is short, and assembly precision is low, and production cost is low, so as to reach energy-saving purpose.
Brief description of the drawings
Fig. 1 is structural representation of the embodiment of the present invention；
Fig. 2 Fig. 1 side structure schematic view；
Valve mechanism structural representation in Fig. 3 embodiment of the present invention.
Embodiment
A kind of special valve interlock of SF6 breakers as shown in drawings, the device are arranged on SF6 circuit breaker carts
On, it includes valve mechanism, link gear, limits panel, baffle plate 8, valve mechanism include with the door-plate of handle hole, valve 1,
Connecting lever 2, bull stick 4, valve 1, square bull stick 4 and handcart movement leading screw 9 are directly installed on quiet vehicle frame bent plate I 3, and connecting lever 2 is fixed
On bull stick 4, rod set II 5 and rod set I 6 are through on square bull stick 4 and moved therewith.Gag lever post 7 is fixed on bar with nut
Cover on I 6, action bars 10 is fixed in rod set II 5 with nut, and baffle plate 8 is fixed by bolts on combined floodgate pull bar, and bent plate II 13 uses spiral shell
Bolt is fixed on mechanism side plate 18, and flap 12 is connected with pivot pin respectively with action bars 10, bent plate II 13, restriction panel 16, flap
12 two are to make strip hole with the junction of action bars 10 and restriction panel 16, and to realize circular motion, pivot pin is directly fixed
On mechanism side plate 18.Flap 12 is promoted with action bars 10 and circled around pivot pin, so as to drive limit panel 16 along
Alignment pin 17 moves up and down.
When breaker is in closing position（Such as Fig. 1）, baffle plate 8 is in position during combined floodgate together with combined floodgate pull bar one, this
If when manual-up pull-up valve 1, connecting lever 2 can rotate clockwise, now square bull stick 4, rod set I 6, gag lever post 7, rod set II 5
And action bars 10 can be with connecting lever 2 together along rotating clockwise, after going to a certain degree, gag lever post 7 can be blocked by baffle plate 8, from
And cause valve 1 can not be further continued for being pulled upwardly, and now valve 1 is in half pull-up state, handcart movement leading screw 9 is not complete
Exposing, specific purpose tool can not coordinate with leading screw, can not more shake into breaker is shaken out, so as to realize breaker in "on" position,
Valve 1 can not be opened completely, can not shake into breaker is shaken out, be caused with avoiding breaker from removing breaker in transmission operation
Personal injury and property loss.
And if only if when breaker is in open position, position when now baffle plate is in separating brake together with combined floodgate pull bar one,
It is manual-up can be with pull-up valve 1 to full open position, connecting lever 2 can rotate clockwise with valve 1, now square bull stick 4, bar
Covering I 6, gag lever post 7, rod set II 5 and action bars 10 can be with connecting lever 2 together along rotating clockwise, so as to drive flap 12 counterclockwise
Rotate, now limit panel 16 under the drive of flap 12, motion, and closing switch button is blocked upwards, and handcart moves
The dynamic blocking of leading screw 9 is released, and handcart be able to can be shaken under the drive of specific purpose tool into shaking out breaker, so as to realize when and
Only when breaker is in gate-dividing state, after valve 1 is opened completely, it can shake into shaking out breaker, but after valve is opened, interlocking
Limit panel just to block closing switch button, breaker just can not carry out closing operation again, to avoid opening completely in valve 1
During state, operating personnel's maloperation is shaken to operating position by breaker closing and by handcart, can if now cabinet bus is powered
Cause very big personal injury and property loss.
For the problems of existing valve crosslinking lock scheme and hidden danger, the valve interlock is set again
Meter, on the premise of action message and perfect in shape and function is ensured, interlock is simplified as far as possible, final design has gone out a set of action
Reliably, flexibly, it is simple for structure, it is easy to safeguard, easily operated brand-new valve interlock, the advantage of product of the present invention is as follows：
1st, reliability
The valve interlock is the indoor SF exclusively for my company's production6Breaker LTK-40.5 designs are researched and developed a set of purely mechanic
Interlocking, it is KYN61-40.5 cabinets that LTK-40.5 breakers, which are adapted to cabinet type, therefore breaker Ye Youyaojin mechanisms and valve arrangement.
The valve interlock drives by the valve on circuit breaker swing mechanism and acted together, reliable in action, flexibly, in the absence of malfunction and
Situation about being failure to actuate, power transmission scene is avoided because the maloperation of operating personnel causes breaker closing, so as to ensure electric power system
Safe operation.
2nd, it is simple for structure, it is energy-saving
Carefully design and optimize by early stage, on the premise of action message and perfect in shape and function is ensured, simplify interlocking as far as possible
Structure, the parts for forming the valve interlock of final design, it is using most common steel plate and round steel processing system
Into simple for structure, the process-cycle is short, and assembly precision is low, is easy to safeguard, production cost is low, so as to reach energy-saving purpose.
3rd, it is easily operated
The parts of all moving parts of valve interlock are finally all direct or indirect to be connected with valve blocking lever, valve
The action of blocking lever directly drives by valve again, thus acting only according to the direction of action of valve for the valve interlock and according to
The action of expected direction, so as to realize breaker in "on" position, valve can not be opened completely, can not shake into shaking out open circuit
Device, and if only if when breaker is in gate-dividing state, after valve is opened completely, can shake into shaking out breaker, but valve is opened
Afterwards, interlocking bent plate just blocks closing switch button, and breaker just can not carry out closing operation again.
Described above is only the preferred embodiment of the present invention, it is noted that for the those of ordinary skill of technical field
For, on the premise of mechanism action principle of the present invention is not departed from, some improvement can also be made, wound is not being paid in these improvement
Protection scope of the present invention is also should be regarded as under the premise of the property made work.
Claims (5)
1. a kind of special valve interlock of SF6 breakers, it is characterized in that：It includes valve mechanism, link gear, qualified surface
Plate, baffle plate, valve mechanism include door-plate, valve, connecting lever, bull stick with handle hole, and door-plate passes through bent plate I and breaker frame
Be fixedly connected, door-plate is provided with vertical chute, and valve is connected with slide, valve move up and down can " locked in " operation hole, it is living
One end of door and connecting lever is hinged, and connecting lever is fixedly connected with bull stick, and bull stick is arranged in frame and is rotatablely connected with housing slide, living
Door is mobile to drive connecting lever to rotate bull stick；Baffle plate is fixedly connected with the combined floodgate pull bar in breaker；Link gear include gag lever post,
Action bars, flap, gag lever post are fixedly connected with bull stick, and with bar rotation, during breaker closing, baffle plate setting turns gag lever post
On dynamic rail mark, the rotational angle of spacing thick stick is limited, during breaker open operation position, baffle plate moves away gag lever post with combined floodgate pull bar and moved
Track, gag lever post freely rotate；It is hinged in the middle part of flap with frame, is provided at both ends with bar shaped slide opening, action bars is by pivot pin with turning
The slide opening connection of plate one end, the other end slide opening of flap are connected by pivot pin with limiting panel；Panel is limited with being glided in frame
Dynamic connection, limit panel upper and lower displacement and block closing switch button.
2. the special valve interlock of SF6 breakers according to claim 1, it is characterized in that：Described valve is by one
Handle panels and the shutter composition of connection, shutter is connected with slide, and spacing by chute, valve be moved to upper end or under
End can shelter from handle hole.
3. the special valve interlock of SF6 breakers according to claim 1, it is characterized in that：Described bull stick is square
Bull stick, it is connected by bearing block with frame；Flap is connected by bent plate II with frame.
4. the special valve interlock of SF6 breakers according to claim 1, it is characterized in that：Described gag lever post, operation
Bar is fixedly connected by rod set I, rod set II with bull stick respectively, and gag lever post is parallel with the surfaces of revolution of action bars.
5. the special valve interlock of SF6 breakers according to claim 1, it is characterized in that：It is described limit panel as
Square plate, avris are provided with two sliding eyes, are slided up and down and be connected with frame by alignment pin, and shift length is limited by pivot pin；Institute
The restriction panel stated is provided with combined floodgate hole and separating brake hole, and separating brake hole is bar hole, and combined floodgate hole is circular port, and diameter is opened more than combined floodgate
Close button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710730669.XA CN107359534B (en) | 2017-08-23 | 2017-08-23 | Valve interlocking device special for SF6 circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710730669.XA CN107359534B (en) | 2017-08-23 | 2017-08-23 | Valve interlocking device special for SF6 circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107359534A true CN107359534A (en) | 2017-11-17 |
| CN107359534B CN107359534B (en) | 2023-05-23 |
Family
ID=60289761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710730669.XA Active CN107359534B (en) | 2017-08-23 | 2017-08-23 | Valve interlocking device special for SF6 circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107359534B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244920A (en) * | 2018-09-30 | 2019-01-18 | 山东泰开真空开关有限公司 | A kind of switchgear vacuum circuit-breaker handcart mechanical interlocks |
| CN110380355A (en) * | 2019-08-08 | 2019-10-25 | 河北邯峰发电有限责任公司 | A kind of medium voltage breaker Intelligent control device |
| CN111668062A (en) * | 2019-03-06 | 2020-09-15 | Ls产电株式会社 | Distribution box |
| CN115425565A (en) * | 2022-08-29 | 2022-12-02 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Five-prevention interlocking mechanism for distribution board cabinet |
| CN119182056A (en) * | 2024-09-26 | 2024-12-24 | 亨斯迈(杭州)电力技术有限公司 | Combined electrical apparatus switch cabinet with linkage interlocking |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4587749B2 (en) * | 2004-09-08 | 2010-11-24 | 三菱電機株式会社 | Closed switchboard interlock device |
| CN1776979B (en) * | 2005-11-07 | 2010-05-05 | 北京华东电气股份有限公司 | Handcart high-voltage switch cabinet mechanical interlock mechanism |
| CN201608102U (en) * | 2010-01-21 | 2010-10-13 | 山东泰开真空开关有限公司 | Novel vacuum circuit breaker swing mechanism |
| CN204315416U (en) * | 2014-12-05 | 2015-05-06 | 甘肃长城电工电器工程研究院有限公司 | Interlock is used between a kind of circuit breaker and isolating switch |
| CN105185622B (en) * | 2015-09-28 | 2017-07-07 | 国家电网公司 | Primary cut-out machinery closing locking device |
| CN105406386B (en) * | 2015-12-03 | 2018-07-10 | 平高集团有限公司 | The interlock of valve and earthing switch |
| CN105742091B (en) * | 2016-03-27 | 2017-10-17 | 梁作鹏 | Five-prevention interlocking operation mechanism of switch cabinet |
| CN106169391B (en) * | 2016-08-31 | 2018-01-09 | 中国西电电气股份有限公司 | A kind of mechanical interlock mechanism of breaker and tri-station isolating switch |
| CN207134704U (en) * | 2017-08-23 | 2018-03-23 | 山东泰开真空开关有限公司 | A kind of SF6The special valve interlock of breaker |
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- 2017-08-23 CN CN201710730669.XA patent/CN107359534B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244920A (en) * | 2018-09-30 | 2019-01-18 | 山东泰开真空开关有限公司 | A kind of switchgear vacuum circuit-breaker handcart mechanical interlocks |
| CN109244920B (en) * | 2018-09-30 | 2024-03-15 | 山东泰开真空开关有限公司 | Mechanical interlocking device for switch cabinet vacuum circuit breaker handcart |
| CN111668062A (en) * | 2019-03-06 | 2020-09-15 | Ls产电株式会社 | Distribution box |
| CN110380355A (en) * | 2019-08-08 | 2019-10-25 | 河北邯峰发电有限责任公司 | A kind of medium voltage breaker Intelligent control device |
| CN110380355B (en) * | 2019-08-08 | 2024-02-13 | 河北邯峰发电有限责任公司 | An intelligent control device for medium voltage circuit breaker |
| CN115425565A (en) * | 2022-08-29 | 2022-12-02 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Five-prevention interlocking mechanism for distribution board cabinet |
| CN115425565B (en) * | 2022-08-29 | 2024-03-29 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Five-prevention interlocking mechanism for distribution board cabinet |
| CN119182056A (en) * | 2024-09-26 | 2024-12-24 | 亨斯迈(杭州)电力技术有限公司 | Combined electrical apparatus switch cabinet with linkage interlocking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107359534B (en) | 2023-05-23 |
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