CN107731615A - A kind of new isolation for cable branch box, earthed switch - Google Patents
A kind of new isolation for cable branch box, earthed switch Download PDFInfo
- Publication number
- CN107731615A CN107731615A CN201711113763.7A CN201711113763A CN107731615A CN 107731615 A CN107731615 A CN 107731615A CN 201711113763 A CN201711113763 A CN 201711113763A CN 107731615 A CN107731615 A CN 107731615A
- Authority
- CN
- China
- Prior art keywords
- earthed switch
- isolation
- interlock
- ground connection
- plate
- 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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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to one kind to switch, more particularly to a kind of new isolation for cable branch box, earthed switch, belongs to technical field of electric equipment.The present invention disposes guidance panel in housing side, the quiet knife of the isolation being parallel to each other from top to bottom is sequentially provided with the housing at the guidance panel back side, isolator operation axle, it is grounded quiet knife and earthed switch operating shaft, the isolator operation axle and earthed switch operating shaft are provided with isolation interlock cam and ground connection interlock cam through one end of housing, interlock plate one and interlock plate two are provided between the isolator operation axle and earthed switch operating shaft, the interlock plate one is fixed on the back side of guidance panel by fulcrum pin, the interlock plate two is fixed on the back side of guidance panel by guider screw, the bottom of the guidance panel is provided with interlocking latch by bent plate, the isolator operation axle is through pull bar with isolating moving knife linkage, the earthed switch operation axis connection ground connection moving knife.Isolation can be achieved, earthed switch quickly divides, closed a floodgate.
Description
Technical field
The present invention relates to one kind to switch, more particularly to a kind of new isolation for cable branch box, earthed switch, belongs to
Technical field of electric equipment.
Background technology
40.5 kilovolts of American Unit Substations are using the on-load switch being immersed in transformer oil, because on-load switch is without visible fracture,
Practical operation or maintenance can not judge cable side formally powered situation, serious threat Operation and Maintenance personnel's personal safety.At present, should
Kind American Unit Substation requires to install cable branch box, cable branch box installing isolation and earthed switch additional, to form visible isolation fracture,
Ensure Operation and Maintenance personnel's personal safety.But be adapted to mounted in the isolation of cable branch box, earthed switch, market without it is easy to operate,
Interlock perfect Related product.
The content of the invention
The purpose of the present invention is unhandy defect be present for prior art, is proposed a kind of for cable branch box
New isolation, earthed switch, interlocking is reliable, easy to operate.
The present invention solves technical problem by the following technical programs：A kind of new isolation for cable branch box, ground connection
Switch, including housing, the housing side dispose guidance panel, from top to bottom set successively in the housing at the guidance panel back side
There is the quiet knife of the isolation being parallel to each other, isolator operation axle, be grounded quiet knife and earthed switch operating shaft, the isolator operation
Axle and earthed switch operating shaft are provided with isolation interlock cam and ground connection interlock cam, the disconnecting switch behaviour through one end of housing
Make to be provided with interlock plate one and interlock plate two between axle and earthed switch operating shaft, the interlock plate one is fixed on operation by fulcrum pin
The back side of panel, the interlock plate two are fixed on the back side of guidance panel by guider screw, and the bottom of the guidance panel passes through
Bent plate is provided with interlocking latch, and the isolator operation axle links through pull bar with isolating moving knife, and the earthed switch operates axis connection
Moving knife is grounded, the guidance panel is provided with the disconnecting switch with isolator operation axle and earthed switch operating shaft position correspondence
Handle hole and earthed switch handle hole.
Further, the interlock plate two is between isolation interlock cam and ground connection interlock cam, the interlock plate two
Positioned at the front side of interlock plate one, one end of the interlocking latch is close to ground connection interlock cam.
On the isolator operation axle isolation quick acting stage clip, the fast quick-action of isolation are provided with close to one end of housing
Make one end connection isolator operation axle of stage clip, other end connection case inside；The earthed switch operating shaft passes through housing
The other end be provided with ground connection quick acting stage clip, it is described ground connection quick acting stage clip one end connection earthed switch operating shaft, separately
One end connects hull outside, to realize quick splitting or integrating lock.
Contact spring is equipped with the isolation moving knife and ground connection moving knife, ensures certain contact.
The bottom of the interlock plate one is provided with the reset tension spring being connected with housing, after ensureing disconnecting switch separating brake, interlock plate
One resets, and exposes earthed switch handle hole, after realizing disconnecting switch separating brake, earthed switch could operate.
The interlock plate one turns to around fulcrum pin to be blocked switching manipulation hole and is interlocked.
The interlocking latch is fixed in guidance panel through bent plate, and one end of the interlocking latch is provided with the pressure being connected with housing
Spring, resetted under stage clip effect, can be achieved could open cabinet door after earthed switch closes a floodgate is overhauled.
When disconnecting switch is in "on" position, disconnecting switch interlock cam promotes interlock plate one to rotate, and interlock plate one is stifled
Firmly earthed switch handle hole, prevent powered conjunction earthed switch；When disconnecting switch is in gate-dividing state, interlock plate once reset is drawn
Spring resets, and exposes earthed switch handle hole.
When earthed switch is in "on" position, ground connection interlock cam promotes interlock plate two to move up, and interlock plate two is stifled
Firmly isolator operation hole, preventing from closing disconnecting switch under ground state, interlocking latch departs from ground connection interlock cam, is resetted through stage clip,
Cabinet door could be opened to be overhauled.
It is an advantage of the invention that：Modern design, clever structure, amount of parts is few, realizes quick point of isolation, ground connection, closes
Lock, disconnecting switch and the engagement of earthed switch contact are reliable, and disconnecting switch and earthed switch operation have undamaged perfect machinery
" five is anti-" interlocking.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is Fig. 1 A-A to structural representation.
Fig. 3 is the structural representation of guidance panel in Fig. 2.
Fig. 4 is a Fig. 1 use state reference chart.
Fig. 5 is Fig. 4 A-A to structural representation.
Fig. 6 is Fig. 1 another use state reference chart.
Fig. 7 is Fig. 6 A-A to structural representation.
Fig. 8 is Fig. 1 partial structural diagram.
Fig. 9 is Fig. 8 side view.
Figure 10 is Fig. 8 rearview.
Figure 11 is stereoscopic-state figure of the present invention.
Figure 12 is Figure 11 rear view.
Identified in figure as follows：1 housing, the 2 quiet knives of isolation, 3 isolation quick acting stage clips, 4 guidance panels, 5 isolation interlockings are convex
Wheel, 6 isolator operation axles, 7 isolation moving knife, 8 isolation moving knife contact springs, 9 ground connection interlock cams, 10 earthed switch operating shafts,
11 ground connection moving knife, 12 ground connection moving knife contact springs, 13 ground connection quick acting stage clips, 14 reset tension springs, 15 interlock plates one, 16 fulcrums
Pin, 17 interlock plates two, 18 isolator operation pull bars, the 19 quiet knives of ground connection, 20 insulators, 21 interlocking latches, 22 bent plates, 23 stage clips,
24 guider screws, isolator operation hole 25, earthed switch handle hole 26.
Embodiment
Embodiment
The isolation of the present embodiment, earthed switch are as shown in Fig. 1-7 and Figure 11-12, and interlocking detail drawing is as Figure 8-Figure 10.One
Kind is used for the new isolation of cable branch box, earthed switch, including housing 1, the side of housing 1 placement guidance panel 4, positioned at operation
The quiet knife 2 of the isolation being parallel to each other from top to bottom is sequentially provided with the housing 1 at the back side of panel 4, isolator operation axle 6, is grounded quiet
Knife 19 and earthed switch operating shaft 10, isolator operation axle 6 and earthed switch operating shaft 10 are set respectively through one end of housing 1
There are isolation interlock cam 5 and ground connection interlock cam 9, interlocking is provided between isolator operation axle 6 and earthed switch operating shaft 10
Plate 1 and interlock plate 2 17, interlock plate 2 17 is between isolation interlock cam 5 and ground connection interlock cam 9, interlock plate 1
Be fixed on the back side of guidance panel 4 by fulcrum pin 16, interlock plate 2 17 positioned at isolation interlock cam 5 and ground connection interlock cam 9 it
Between, interlock plate 2 17 is located at the front side of interlock plate 1 and the back side of guidance panel 4, operating surface is fixed on by guider screw 24
Plate 4 is provided with interlocking latch 21 by bent plate 22, one end of interlocking latch 21 close to ground connection interlock cam 9, isolator operation axle 6 through every
Linked from switching manipulation pull bar 18 with isolating moving knife 7, the connection of earthed switch operating shaft 10 is grounded moving knife 11, divides on guidance panel 4
Isolator operation hole 25 corresponding with isolator operation axle 6 and earthed switch operating shaft 10 and earthed switch operation are not provided with
Hole 26.On isolator operation axle 6 isolation quick acting stage clip 3, isolation quick acting stage clip 3 are provided with close to one end of housing 1
One end connection isolator operation axle 6, the inner side of other end connection housing 1, earthed switch operating shaft 10 is another through housing 1
End is provided with ground connection quick acting stage clip 13, one end connection earthed switch operating shaft 10 of ground connection quick acting stage clip 13, the other end
The outside of housing 1 is connected, realizes quick splitting or integrating lock.Isolate moving knife 7 and be provided with isolation moving knife contact spring 8, ground connection moving knife 11 is provided with
Earthed switch contact spring 12, ensures certain contact.The bottom of interlock plate 1 is provided with the reset tension spring being connected with housing 1
14, after ensureing disconnecting switch separating brake, interlock plate 1 resets, and exposes earthed switch handle hole 26, after realizing disconnecting switch separating brake,
Earthed switch could operate.Interlocking latch 21 is fixed on guidance panel 4 through bent plate 22, and interlocking latch is provided with stage clip 23, is made in stage clip
With lower reset, can be achieved could open cabinet door after earthed switch closes a floodgate is overhauled.Isolate quiet knife 2 and be grounded quiet knife 19 and pass through
Insulator 20 is separately fixed on housing 1, ensure high-voltage charged body and housing () insulation distance.
Power transmission operates：
Product initial state：Disconnecting switch separating brake, earthed switch close a floodgate, and see accompanying drawing 6-7.Operated and connect counterclockwise by handle
Ground switching manipulation axle 10, the counterclockwise movement of moving knife 11 is grounded, in the case where ground connection quick acting stage clip 13 acts on, earthed switch quickly divides
Lock；Meanwhile the ground connection interlock cam 9 being enclosed in earthed switch operating shaft 10 also rotates counterclockwise, interlock plate 2 17 is set to transport downwards
It is dynamic, expose isolator operation hole, now Product Status：Disconnecting switch separating brake, grounding switch tripping, see accompanying drawing 1-3；Pass through hand
Handle disconnecting switch operation operating shaft 6 clockwise, isolate the clockwise movement of moving knife 7, in the case where isolation quick acting stage clip 4 acts on, every
Pass rapid closing is left, isolation moving knife stage clip 8 ensures isolation moving knife 7 with isolating the quiet positive engagement of knife 2；Meanwhile it is enclosed on and keeps apart
The isolation interlock cam 5 closed in operating shaft 6 also rotates clockwise, and promotes interlock plate 1 to be rotated clockwise around connection fulcrum 16, from
And earthed switch handle hole is blocked, prevent powered conjunction earthed switch.Now Product Status：Disconnecting switch is closed a floodgate, earthed switch point
Lock, see accompanying drawing 4-5.
Power failure operation：
Product initial state：Disconnecting switch is closed a floodgate, grounding switch tripping, sees accompanying drawing 4-5.Earthed switch handle hole is interlocked
Plate 2 17 is blocked, and only first divides disconnecting switch, and by handle disconnecting switch operation operating shaft 6 counterclockwise, isolation moving knife 7 is counterclockwise
Motion, in the case where isolation quick acting stage clip 4 acts on, disconnecting switch quick acting switching-off；Meanwhile it is enclosed on isolator operation axle 6
Isolation interlock cam 5 also rotates counterclockwise, and interlock plate 1 rotates counterclockwise under the effect of reset tension spring 14 around fulcrum pin 16, reveals
Go out earthed switch handle hole, now Product Status：Disconnecting switch separating brake, grounding switch tripping, see accompanying drawing 1-3；It is suitable by handle
Hour hands operational grounding switching manipulation axle 10, the clockwise movement of moving knife 11 is grounded, in the case where ground connection quick acting stage clip 13 acts on, ground connection
Rapid closing is switched, ground connection moving knife stage clip 12 ensures ground connection moving knife 11 with being grounded the quiet positive engagement of knife 19；Meanwhile it is enclosed on ground connection and opens
The ground connection interlock cam 9 closed in operating shaft 10 also rotates clockwise, and interlock plate 2 17 is moved upwards along guider screw 24, blocks
Isolator operation hole, prevent from closing disconnecting switch under earthed switch "on" position, meanwhile, it is grounded in the rotation process of interlock cam 9,
The interlocking latch 21 being fixed on by bent plate 22 on guidance panel 4 slides to the right under the effect of stage clip 23, it is possible to achieve earthed switch
Cabinet door is opened after combined floodgate to be overhauled.Now Product Status：Disconnecting switch separating brake, earthed switch close a floodgate, and see accompanying drawing 6-7.
In addition to above-mentioned implementation, the present invention can also have other embodiment.It is all to be formed using equivalent substitution or equivalent transformation
Technical scheme, all fall within the protection domains of application claims.
Claims (9)
1. a kind of new isolation for cable branch box, earthed switch, including housing, it is characterised in that：The housing side
Guidance panel is disposed, the quiet knife of the isolation being parallel to each other from top to bottom is sequentially provided with the housing at the guidance panel back side, is isolated
Switching manipulation axle, is grounded quiet knife and earthed switch operating shaft, and the isolator operation axle and earthed switch operating shaft pass through shell
One end of body is provided with isolation interlock cam and ground connection interlock cam, between the isolator operation axle and earthed switch operating shaft
Provided with interlock plate one and interlock plate two, the interlock plate one is fixed on the back side of guidance panel, the interlock plate two by fulcrum pin
The back side of guidance panel is fixed on by guider screw, the bottom of the guidance panel is provided with interlocking latch, the isolation by bent plate
Switching manipulation axle links through pull bar with isolating moving knife, the earthed switch operation axis connection ground connection moving knife, on the guidance panel
Provided with the isolator operation hole and earthed switch handle hole with isolator operation axle and earthed switch operating shaft position correspondence.
2. the new isolation for cable branch box, earthed switch according to claim 1, it is characterised in that：The interlocking
For plate two between isolation interlock cam and ground connection interlock cam, the interlock plate two is located at the front side of interlock plate one, described
One end of lock pin is close to ground connection interlock cam.
3. the new isolation for cable branch box, earthed switch according to claim 1, it is characterised in that：The isolation
On switching manipulation axle isolation quick acting stage clip, one end connection of the isolation quick acting stage clip are provided with close to one end of housing
Isolator operation axle, other end connection case inside；The earthed switch operating shaft is provided with ground connection through the other end of housing
Quick acting stage clip, one end connection earthed switch operating shaft of the ground connection quick acting stage clip, other end connection hull outside.
4. the new isolation for cable branch box, earthed switch according to claim 1, it is characterised in that：The isolation
Contact spring is equipped with moving knife and ground connection moving knife.
5. the new isolation for cable branch box, earthed switch according to claim 1, it is characterised in that：The interlocking
The bottom of plate one is provided with the reset tension spring being connected with housing.
6. the new isolation for cable branch box, earthed switch according to claim 1, it is characterised in that：The interlocking
Pin is fixed in guidance panel through bent plate, and one end of the interlocking latch is provided with the stage clip being connected with housing.
7. the new isolation for cable branch box, earthed switch according to claim 1, it is characterised in that：The interlocking
Plate one turns to around fulcrum pin to be blocked switching manipulation hole and is interlocked.
8. the new isolation for cable branch box, earthed switch according to claim 1, it is characterised in that：When keeping apart
When pass is in "on" position, disconnecting switch interlock cam promotes interlock plate one to rotate, and interlock plate one blocks earthed switch handle hole；
When disconnecting switch is in gate-dividing state, the extension spring of interlock plate once reset resets, and exposes earthed switch handle hole.
9. the new isolation for cable branch box, earthed switch according to claim 1, it is characterised in that：When ground connection is opened
When pass is in "on" position, ground connection interlock cam promotes interlock plate two to move up, and interlock plate two blocks isolator operation hole,
Interlocking latch departs from ground connection interlock cam, is resetted through stage clip, and cabinet door is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711113763.7A CN107731615B (en) | 2017-11-13 | 2017-11-13 | Novel isolating and grounding switch for cable branch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711113763.7A CN107731615B (en) | 2017-11-13 | 2017-11-13 | Novel isolating and grounding switch for cable branch box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107731615A true CN107731615A (en) | 2018-02-23 |
| CN107731615B CN107731615B (en) | 2020-06-16 |
Family
ID=61215079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711113763.7A Active CN107731615B (en) | 2017-11-13 | 2017-11-13 | Novel isolating and grounding switch for cable branch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107731615B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202183319U (en) * | 2011-08-13 | 2012-04-04 | 宁波宝鑫铁路信号设备制造有限公司 | Mechanical interlocking device of disconnecting switch and earthing switch |
| CN203165780U (en) * | 2013-01-31 | 2013-08-28 | 浙江科润电力设备有限公司 | Rotary type indoor high voltage disconnecting switch |
| CN205069493U (en) * | 2015-09-17 | 2016-03-02 | 江苏大全高压开关有限公司 | Vacuum load switch and fuse combined electrical apparatus |
| CN205645582U (en) * | 2016-04-26 | 2016-10-12 | 亚洲电力设备(深圳)股份有限公司 | Big galvanic isolation switch |
| CN107293426A (en) * | 2017-07-26 | 2017-10-24 | 安徽驰纬电气有限公司 | A kind of ring main unit cabinet door interlock |
| CN207458830U (en) * | 2017-11-13 | 2018-06-05 | 江苏大全高压开关有限公司 | A kind of new isolation for cable branch box, earthing switch |
-
2017
- 2017-11-13 CN CN201711113763.7A patent/CN107731615B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202183319U (en) * | 2011-08-13 | 2012-04-04 | 宁波宝鑫铁路信号设备制造有限公司 | Mechanical interlocking device of disconnecting switch and earthing switch |
| CN203165780U (en) * | 2013-01-31 | 2013-08-28 | 浙江科润电力设备有限公司 | Rotary type indoor high voltage disconnecting switch |
| CN205069493U (en) * | 2015-09-17 | 2016-03-02 | 江苏大全高压开关有限公司 | Vacuum load switch and fuse combined electrical apparatus |
| CN205645582U (en) * | 2016-04-26 | 2016-10-12 | 亚洲电力设备(深圳)股份有限公司 | Big galvanic isolation switch |
| CN107293426A (en) * | 2017-07-26 | 2017-10-24 | 安徽驰纬电气有限公司 | A kind of ring main unit cabinet door interlock |
| CN207458830U (en) * | 2017-11-13 | 2018-06-05 | 江苏大全高压开关有限公司 | A kind of new isolation for cable branch box, earthing switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107731615B (en) | 2020-06-16 |
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