CN108493021A - Dropout blocking device and box-shaped fixed type alternating current metal closed switch - Google Patents
Dropout blocking device and box-shaped fixed type alternating current metal closed switch Download PDFInfo
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- CN108493021A CN108493021A CN201810585549.XA CN201810585549A CN108493021A CN 108493021 A CN108493021 A CN 108493021A CN 201810585549 A CN201810585549 A CN 201810585549A CN 108493021 A CN108493021 A CN 108493021A
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- dropout
- driving member
- pull rod
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- blocking device
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 23
- 239000002184 metal Substances 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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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
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Electromagnetism (AREA)
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Abstract
The present invention provides a kind of dropout blocking device and box-shaped fixed type alternating current metal closed switchs, it is related to the technical field of power equipment, dropout blocking device includes mounting bracket, trip shaft, latch handle, operation handle, the first driving member and the second driving member；When latch handle turns to dropout locked position of coupler, latch handle drives the movement of the first driving member, to drive dropout shaft rotation；When operation handle pushes, operation handle drives the movement of the second driving member, to drive trip shaft to rotate.Two kinds of courses of action that can complete breaker open operation are provided in the dropout blocking device, and when the first operation failure, second of operation can still complete breaker open operation, to improve the reliability of lock operation, ensure the safety of personnel and equipment.
Description
Technical field
The present invention relates to electrical equipment technical fields, more particularly, to a kind of dropout blocking device and the fixed exchange of box
Metal enclosed switchgear.
Background technology
Box-shaped fixed type alternating current metal closed switch is indoor complete power distribution equipment, is suitable for the three of 12~40.5KV
Mutually exchange 50Hz electric system receives and distributes network power, and is controlled circuit, protected and monitored.
Currently, when user needs start-up operation turntable, then the corresponding operation handle of push turntable first needs
The isolation knife of box-shaped fixed type alternating current metal closed switch and earthing knife-switch are latched with circuit breaker tripping, user rotates behaviour
Make the latch handle on disk to disjunction locked position of coupler, latch handle rotation is to drive dropout plate to move, to drive dropout shaft rotation
It is dynamic, the separating brake of breaker is completed, the generation of maloperation can be avoided by this lock operation.
But the cooperation of latch handle, dropout plate and trip shaft is single linkage mechanism, only by rotating latch handle
The reliability to complete lock operation it is relatively low.
Invention content
The purpose of the present invention is to provide a kind of dropout blocking device and box-shaped fixed type alternating current metal closed switch,
With improve it is existing in the prior art only by rotate latch handle the lower technology of the reliability to complete lock operation ask
Topic.
Dropout blocking device provided by the invention, including mounting bracket, trip shaft, latch handle, operation handle, the first transmission
Part and the second driving member；Latch handle, operation handle, the first driving member and the second driving member are connect with mounting bracket；Behaviour
Make handle for being correspondingly arranged with operation turntable；The first end of second driving member is connect with operation handle, second end and trip shaft
Connection；The first end of first driving member is connect with latch handle, second end and dropout axis connection；Trip shaft is used to connect with breaker
It connects, trip shaft is rotated to enable breaker open operation；When operation handle pushes, operation handle drives the movement of the second driving member, to
Drive trip shaft rotation；When latch handle turns to dropout locked position of coupler, latch handle drives the movement of the first driving member, to
Drive trip shaft rotation.
Further, the second driving member includes driver plate and drive link；The both ends of drive link respectively with driver plate and dropout
Axis connection；When operation handle pushes, operation handle drives driver plate and drive link linkage, to drive trip shaft to rotate；It passes
It is provided with the limiting through hole of bar shaped on movable plate, the locating part being arranged in limiting through hole is provided on mounting bracket；Locating part can
It is slided along limiting through hole, to limit the mobile route of driver plate.
Further, the second driving member further includes resetting spring；One end of resetting spring is connect with driver plate, the other end with
Mounting bracket connects；When operation handle pushes, resetting spring is in stretching or contraction state.
Further, it is provided with connecting shaft in trip shaft；Second driving member and the first driving member respectively by connecting shaft with
Trip shaft is hinged.
Further, the first through hole and the second through-hole of bar shaped are respectively arranged on the second driving member and the first driving member；
Connecting shaft is threaded through in first through hole and the second through-hole；When trip shaft rotates, connecting shaft is slided along first through hole and the second through-hole
It is dynamic.
Further, drive link includes locking driving lever and locking pull rod；The one end for being latched driving lever is connect with locking pull rod, separately
One end is connect with driver plate；It is latched pull rod one end and dropout axis connection far from locking driving lever.
Further, it is latched on driving lever and is provided with the first connecting hole；Locking pull rod is L-shaped, the bottom edge of L-shaped locking pull rod
It is threaded through in the first connecting hole, to enable locking pull rod and locking driving lever hinged.
Further, the first driving member includes dropout plate and dropout pull rod；One end of dropout plate is connect with dropout pull rod, separately
One end is connect with latch handle；The one end of dropout pull rod far from dropout plate and dropout axis connection.
Further, it is provided with the second connecting hole on dropout plate；Dropout pull rod is L-shaped, and the bottom edge of L-shaped dropout pull rod is worn
It is located in the second connecting hole, to enable dropout pull rod hinged with dropout plate.
Further, the present invention also provides a kind of box-shaped fixed type alternating current metal closed switch, box is fixed
Ac metal closing switch gear includes operation turntable, breaker and dropout blocking device.
Dropout blocking device provided by the invention, when in use, when user needs start-up operation turntable, by locking hand
Handle goes to dropout locked position of coupler, and latch handle drives the movement of the first driving member, to drive trip shaft to rotate, and then completes open circuit
Device separating brake；Then depression handle, operation handle drives the movement of the second driving member, to drive trip shaft to rotate.Work as locking
When handle operation failure, i.e., after latch handle goes to dropout locked position of coupler, when trip shaft does not rotate realization lock operation, make
User's depression handle can also drive trip shaft to rotate, and to complete breaker open operation, realize lock operation.
From the foregoing, it will be observed that passing through cooperation between operation handle and the second driving member and latch handle and the first driving member
Between cooperation, two kinds of courses of action that can complete breaker open operation are provided, when the first operation failure, second behaviour
Work can still complete breaker open operation, to improve the reliability of lock operation, ensure the safety of personnel and equipment.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the front view of box-shaped fixed type alternating current metal closed switch provided in an embodiment of the present invention；
Fig. 2 is the side view of box-shaped fixed type alternating current metal closed switch provided in an embodiment of the present invention；
Fig. 3 is the rearview of box-shaped fixed type alternating current metal closed switch provided in an embodiment of the present invention；
Fig. 4 is the enlarged drawing at A in Fig. 1；
Fig. 5 is the enlarged drawing at B in Fig. 2.
Icon：1- mounting brackets；2- trip shafts；3- latch handles；4- operation handles；5- connecting shafts；6- operates turntable；7- is disconnected
Road device；8- driver plates；9- drive links；10- dropout plates；11- dropout pull rods；The first connecting holes of 12-；The second connecting holes of 13-；14-
First through hole；The second through-holes of 15-；16- limiting through hole；17- locating parts；The second driving members of 18-；The first driving members of 19-；20- is closed
Lock driving lever；21- is latched pull rod.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that such as occur term "center", "upper", "lower", "left", "right",
"vertical", "horizontal", "inner", "outside" etc., indicated by orientation or positional relationship be orientation based on ... shown in the drawings or position
Relationship is merely for convenience of description of the present invention and simplification of the description, and not indicating or implying the indicated device or element must have
There is specific orientation, with specific azimuth configuration and operation, therefore is not considered as limiting the invention.In addition, as occurred
Term " first ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, dropout blocking device provided in this embodiment, including mounting bracket 1,
Trip shaft 2, latch handle 3, operation handle 4, the first driving member 19 and the second driving member 18；Latch handle 3, operation handle 4,
First driving member 19 and the second driving member 18 are connect with mounting bracket 1；Operation handle 4 is used to be correspondingly arranged with operation turntable 6；
The first end of second driving member 18 is connect with operation handle 4, and second end is connect with trip shaft 2；The first end of first driving member 19
It is connect with latch handle 3, second end is connect with trip shaft 2；For being connect with breaker 7, trip shaft 2 is rotated to enable trip shaft 2
7 separating brake of breaker；When operation handle 4 pushes, operation handle 4 drives the movement of the second driving member 18, to drive 2 turns of trip shaft
It is dynamic；When latch handle 3 turns to dropout locked position of coupler, latch handle 3 drives the movement of the first driving member 19, threads off to drive
Axis 2 rotates.
Dropout blocking device provided in this embodiment when user needs start-up operation turntable 6, will close when in use
Lock handle 3 goes to dropout locked position of coupler, and latch handle 3 drives the movement of the first driving member 19, to drive trip shaft 2 to rotate, into
And complete 7 separating brake of breaker；Then depression handle 4, operation handle 4 drives the movement of the second driving member 18, de- to drive
Buckle shaft 2 rotates.When 3 operation failure of latch handle, i.e., after latch handle 3 goes to dropout locked position of coupler, trip shaft 2 is without turning
When dynamic realization lock operation, user's depression handle 4 can also drive trip shaft 2 to rotate, and divide to complete breaker 7
Lock realizes lock operation.
From the foregoing, it will be observed that being passed by cooperation between operation handle 4 and the second driving member 18 and latch handle 3 and first
Two kinds of courses of action that can complete 7 separating brake of breaker are provided in cooperation between moving part 19, when the first operation failure,
Second of operation can still complete 7 separating brake of breaker, to improve the reliability of lock operation, ensure the peace of personnel and equipment
Entirely.
As shown in Fig. 3, Fig. 4 and Fig. 5, on the basis of the above embodiments, further, the second driving member 18 includes passing
Movable plate 8 and drive link 9；The both ends of drive link 9 are connect with driver plate 8 and trip shaft 2 respectively；When operation handle 4 pushes, operation
Handle 4 drives driver plate 8 and drive link 9 to link, to drive trip shaft 2 to rotate；The limit that bar shaped is provided on driver plate 8 is logical
Hole 16 is provided with the locating part 17 being arranged in limiting through hole 16 on mounting bracket 1；Locating part 17 can be slided along limiting through hole 16
It is dynamic, to limit the mobile route of driver plate 8.
Wherein, operation handle 4 is multiple, and multiple operation handles 4 correspond to multiple operation turntables 6 respectively.
Further, multiple operation handles 4 in the case of reset, i.e., should not be with driver plate 8 in the case of no pushing
Contact can enable multiple operation handles 4 coordinate respectively with driver plate 8 when pushing in this way.
Further, trepanning is provided on mounting bracket 1, drive link 9 is fed through trepanning and is connect with driver plate 8.
Further, locating part 17 is fixedly connected with mounting bracket 1, and locating part 17 can be screw or pin etc..
In the present embodiment, in use, user pushes operation handle 4, and operation handle 4 drives driver plate 8 to move
Dynamic, to drive drive link 9 to move, drive link 9 drives trip shaft 2 to rotate, and to enable 7 separating brake of breaker, completes locking of threading off
Operation.During driver plate 8 moves, due to the setting of limiting through hole 16 and locating part 17, driver plate 8 is merely able to along limit
Position through-hole 16 moves back and forth, and can ensure the stability of operation in this way.
On the basis of the above embodiments, further, the second driving member 18 further includes resetting spring；The one of resetting spring
End is connect with driver plate 8, and the other end is connect with mounting bracket 1；When operation handle 4 pushes, resetting spring, which is in, to be stretched or receives
Contracting state.
Wherein, it is to be removably secured connection between resetting spring and driver plate 8 and mounting bracket 1.When resetting spring is long
After time use, user being capable of easy disassembly and the resetting spring that more renews.
In the present embodiment, in use, when operation handle 4 is in pressed status, operation handle 4 drives driving member
It is mobile, to drive resetting spring to stretch or shrink；After operation handle 4 resets, resetting spring resets, to drive successively
Driver plate 8 and drive link 9 reset, to continue next time to operate.
As shown in figure 5, on the basis of the above embodiments, further, connecting shaft 5 is provided in trip shaft 2；Second passes
Moving part 18 and the first driving member 19 are hinged by connecting shaft 5 and trip shaft 2 respectively.On second driving member 18 and the first driving member 19
It is respectively arranged with the first through hole 14 and the second through-hole 15 of bar shaped；Connecting shaft 5 is threaded through in first through hole 14 and the second through-hole 15；
When trip shaft 2 rotates, connecting shaft 5 is slided along first through hole 14 and the second through-hole 15.
Wherein, trip shaft 2 is provided with one end of connecting shaft 5 and may be configured as n shapes, and the opening in n shapes is arranged in connecting shaft 5,
And the both ends of connecting shaft 5 are fed through the two sides of n shapes.Second driving member 18 and the part of the connecting shaft 5 inside n shapes are cut with scissors
It connects, the first driving member 19 and the part of the connecting shaft 5 positioned at the two sides of n shapes are hinged.In use, this set can
The second driving member 18 and the first driving member 19 is avoided to generate interference, and high stability.
In the present embodiment, in use, latch handle 3 is turned to dropout locked position of coupler, latch handle 3 by user
The first driving member 19 is driven to move, the first driving member 19 drives the movement of connecting shaft 5 to drive trip shaft 2 to rotate, and then uses
Person's depression handle 4, operation handle 4 drive the movement of the second driving member 18, divide since trip shaft 2 has been rotated by breaker 7
Gate position, connecting shaft 5 has moved to predeterminated position, and while the second driving member 18 moves, it is logical first that connecting shaft 5 changes it
Position in hole 14, the movement of the second driving member 18 are idle stroke.When 3 operation failure of latch handle, the first driving member 19 does not have
Trip shaft 2 is driven to rotate, when operation handle 4 pushes, operation handle 4 drives the movement of the second driving member 18, the second driving member 18
Drive the movement of connecting shaft 5 to drive trip shaft 2 to turn to 7 open position of breaker, at this moment, due to the position of the first driving member 19
The initial position for being still within and not moving is set, changes its position in the second through-hole 15 while connecting shaft 5 moves, it will not
The first driving member 19 is driven to move, to which the burden when movement of the second driving member 18 will not be increased.
As shown in Figure 3 and Figure 5, on the basis of the above embodiments, further, drive link 9 includes locking 20 He of driving lever
It is latched pull rod 21；The one end for being latched driving lever 20 is connect with locking pull rod 21, and the other end is connect with driver plate 8；It is remote to be latched pull rod 21
One end from locking driving lever 20 is connect with trip shaft 2.It is provided with the first connecting hole 12 on locking driving lever 20；It is in L to be latched pull rod 21
The bottom edge of shape, L-shaped locking pull rod 21 is threaded through in the first connecting hole 12, to enable locking pull rod 21 be cut with scissors with locking driving lever 20
It connects.
Wherein, it is latched between driving lever 20 and locking pull rod 21 and may be provided with first rotating shaft, locking driving lever 20 and locking pull rod
It is hinged by first rotating shaft between 21.
Further, it can be to be bolted or weld etc. to be latched between driving lever 20 and driver plate 8.
In the present embodiment, in use, the movement of driver plate 8 is latched 20 band of driving lever to drive locking driving lever 20 to move
Dynamic locking pull rod 21 moves, and to enable trip shaft 2 rotate, realizes lock operation.L-shaped is latched pull rod 21 and the first connecting hole 12
Setting can enable and realize hinged between locking pull rod 21 and locking driving lever 20, realize hinged connector without increasing other,
Cost is relatively low, easy to operate.Locking driving lever 20 and the setting for being latched pull rod 21 can be convenient for users to changing according to actual conditions
The installation position of drive link 9 and occupancy range, to the scope of application of expansion instrument.
As shown in Figure 3 and Figure 5, on the basis of the above embodiments, further, the first driving member 19 includes dropout plate 10
With dropout pull rod 11；One end of dropout plate 10 is connect with dropout pull rod 11, and the other end is connect with latch handle 3；Dropout pull rod 11
One end far from dropout plate 10 is connect with trip shaft 2.The second connecting hole 13 is provided on dropout plate 10；Dropout pull rod 11 is L-shaped,
The bottom edge of L-shaped dropout pull rod 11 is threaded through in the second connecting hole 13, to enable dropout pull rod 11 hinged with dropout plate 10.
Wherein, may be provided with the second shaft between dropout plate 10 and dropout pull rod 11, dropout plate 10 and dropout pull rod 11 it
Between it is hinged by the second shaft.
Further, dropout plate 10 and latch handle 3 can be to be bolted or weld etc..
In the present embodiment, in use, user rotates latch handle 3 to disjunction locked position of coupler, 3 band of latch handle
Dynamic dropout plate 10 is moved to drive dropout pull rod 11 to move, and to enable trip shaft 2 rotate, realizes lock operation.L-shaped dropout pull rod
11 and second connecting hole 13 setting can enable realized between dropout pull rod 11 and dropout plate 10 it is hinged, without increasing other realities
The connector now joined, cost is relatively low, easy to operate.The setting of dropout pull rod 11 and dropout plate 10 can be convenient for users to basis
Actual conditions change the installation position of latch handle 3 and occupy range, to the scope of application of expansion instrument.
On the basis of the above embodiments, further, the embodiment of the present invention additionally provides a kind of fixed exchange of box
Metal enclosed switchgear, box-shaped fixed type alternating current metal closed switch include that operation turntable 6, breaker 7 and dropout are closed
Locking device.
In the present embodiment, box-shaped fixed type alternating current metal closed switch includes operation turntable 6, breaker 7 and threads off
Blocking device.When in use, when user needs start-up operation turntable 6, latch handle 3 is gone into dropout locked position of coupler, is closed
It locks handle 3 and drives the movement of the first driving member 19, to drive trip shaft 2 to rotate, and then complete 7 separating brake of breaker；Then it pushes
Operation handle 4, operation handle 4 drive the movement of the second driving member 18, to drive trip shaft 2 to rotate.It is lost when latch handle 3 operates
When effect, i.e., after latch handle 3 goes to dropout locked position of coupler, when trip shaft 2 realizes lock operation without rotation, user pushes
Operation handle 4 can also drive trip shaft 2 to rotate, and to complete 7 separating brake of breaker, realize lock operation.
From the foregoing, it will be observed that being passed by cooperation between operation handle 4 and the second driving member 18 and latch handle 3 and first
Two kinds of courses of action that can complete 7 separating brake of breaker are provided in cooperation between moving part 19, when the first operation failure,
Second of operation can still complete 7 separating brake of breaker, to improve the reliability of lock operation, ensure the peace of personnel and equipment
Entirely.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of dropout blocking device, which is characterized in that including：Mounting bracket, trip shaft, latch handle, operation handle, first pass
Moving part and the second driving member；
The latch handle, the operation handle, first driving member and second driving member with the mounting bracket
Connection；The operation handle is used to be correspondingly arranged with operation turntable；The first end of second driving member and the operation handle
Connection, second end and the dropout axis connection；The first end of first driving member is connect with the latch handle, second end with
The dropout axis connection；The trip shaft with breaker for connecting, and the trip shaft rotation is to enable the breaker open operation；
When the operation handle pushes, the operation handle drives the second driving member movement, to drive the dropout
Shaft rotation is dynamic；
When the latch handle turns to dropout locked position of coupler, the latch handle drives the first driving member movement, from
And the trip shaft is driven to rotate.
2. dropout blocking device according to claim 1, which is characterized in that second driving member includes driver plate and biography
Lever；
The both ends of the drive link respectively with the driver plate and the dropout axis connection；When the operation handle pushes, institute
It states operation handle and drives the driver plate and drive link linkage, to drive the trip shaft to rotate；
It is provided with the limiting through hole of bar shaped on the driver plate, is provided with and is arranged in the limiting through hole on the mounting bracket
Locating part；The locating part can be slided along the limiting through hole, to limit the mobile route of the driver plate.
3. dropout blocking device according to claim 2, which is characterized in that second driving member further includes resetting bullet
Spring；
One end of the resetting spring is connect with the driver plate, and the other end is connect with the mounting bracket；When the operation handle
When pushing, the resetting spring is in stretching or contraction state.
4. dropout blocking device according to claim 1, which is characterized in that be provided with connecting shaft in the trip shaft；
Second driving member and first driving member are hinged by the connecting shaft and the trip shaft respectively.
5. dropout blocking device according to claim 4, which is characterized in that second driving member and first transmission
The first through hole and the second through-hole of bar shaped are respectively arranged on part；
The connecting shaft is threaded through in the first through hole and second through-hole；When the trip shaft rotates, the connection
Axis is slided along the first through hole and second through-hole.
6. dropout blocking device according to claim 2, which is characterized in that the drive link includes locking driving lever and locking
Pull rod；
One end of the locking driving lever is connect with the locking pull rod, and the other end is connect with the driver plate；The locking pull rod
One end far from the locking driving lever and the dropout axis connection.
7. dropout blocking device according to claim 6, which is characterized in that be provided with the first connection on the locking driving lever
Hole；
The locking pull rod is L-shaped, and the bottom edge of the L-shaped locking pull rod is threaded through in first connecting hole, to enable
It is hinged with the locking driving lever to state locking pull rod.
8. dropout blocking device according to claim 1, which is characterized in that first driving member includes dropout plate and takes off
Detain pull rod；
One end of the dropout plate is connect with the dropout pull rod, and the other end is connect with the latch handle；The dropout pull rod
One end far from the dropout plate and the dropout axis connection.
9. dropout blocking device according to claim 8, which is characterized in that be provided with the second connection on the dropout plate
Hole；
The dropout pull rod is L-shaped, and the bottom edge of the L-shaped dropout pull rod is threaded through in second connecting hole, to enable
It is hinged with the dropout plate to state dropout pull rod.
10. a kind of box-shaped fixed type alternating current metal closed switch, which is characterized in that including operation turntable, breaker and such as
Claim 1-9 any one of them dropout blocking devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810585549.XA CN108493021A (en) | 2018-06-07 | 2018-06-07 | Dropout blocking device and box-shaped fixed type alternating current metal closed switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810585549.XA CN108493021A (en) | 2018-06-07 | 2018-06-07 | Dropout blocking device and box-shaped fixed type alternating current metal closed switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108493021A true CN108493021A (en) | 2018-09-04 |
Family
ID=63342208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810585549.XA Pending CN108493021A (en) | 2018-06-07 | 2018-06-07 | Dropout blocking device and box-shaped fixed type alternating current metal closed switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108493021A (en) |
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| CN201307530Y (en) * | 2008-11-20 | 2009-09-09 | 汕头正超电气集团有限公司 | Locking and tripping device for circuit breaker of switchgear |
| CN103794390A (en) * | 2014-01-27 | 2014-05-14 | 广州白云电器设备股份有限公司 | Mechanical interlocking device with two-direction control function of high-voltage switchgear |
| CN107785196A (en) * | 2017-11-07 | 2018-03-09 | 河南森源电气股份有限公司 | The interlocking mechanism of switch cubicle and its disconnecting switch and breaker |
| CN208173453U (en) * | 2018-06-07 | 2018-11-30 | 广东电网有限责任公司 | Tripping blocking device and box-shaped fixed type alternating current metal closed switch |
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