CN219457392U - Centrally installed switchgear interlocking mechanism for electric grounding switch - Google Patents
Centrally installed switchgear interlocking mechanism for electric grounding switch Download PDFInfo
- Publication number
- CN219457392U CN219457392U CN202320700398.4U CN202320700398U CN219457392U CN 219457392 U CN219457392 U CN 219457392U CN 202320700398 U CN202320700398 U CN 202320700398U CN 219457392 U CN219457392 U CN 219457392U
- Authority
- CN
- China
- Prior art keywords
- grounding switch
- shaft
- interlocking structure
- guide rail
- switch operation
- 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.)
- Active
Links
Abstract
The utility model relates to the technical field of centrally installed switchgear in the power plant industry, in particular to a centrally installed switchgear interlocking mechanism for an electric grounding switch, the centrally installed switchgear is formed by splicing a front cabinet and a rear cabinet, an interlocking mechanism for connecting the electric grounding switch is arranged in the centrally installed switchgear, the interlocking mechanism comprises a guide rail interlocking structure, a manual priority micro-switch structure, a front lower door interlocking structure and a rear door interlocking structure, the guide rail interlocking structure is arranged in the front cabinet and is in linkage with a grounding switch operation shaft, a lock tongue capable of being connected with a guide rail is arranged in the guide rail interlocking structure, a pressing plate connected with the guide rail interlocking structure is arranged at the output end of the guide rail interlocking structure and is installed in the grounding switch operation shaft, the manual priority micro-switch structure is connected in series to the electric grounding switch operation circuit and is in linkage with the pressing plate, and the front lower door interlocking structure is arranged in the front cabinet and is connected with the grounding switch operation shaft and is provided with a shaft pin.
Description
Technical Field
The utility model relates to the technical field of centrally installed switchgear in the power complete equipment industry, in particular to a centrally installed switchgear interlocking mechanism for an electric grounding switch.
Background
With the development of power grid automation, the project of power supply main network engineering has required to configure an electric grounding switch.
The disadvantages of conventional interlocking mechanisms are as follows:
1. when the door is interlocked with the back door, the conventional interlocking mechanism is a round steel which penetrates through the front and back of the switch cabinet. The lap joint row of the round steel and the C-phase cable in the cable room can not meet the safety distance requirement of 125mm of a 10kV switch cabinet. The common treatment method is to sleeve a heat shrinkage sleeve on round steel.
2. The manual operation and the electric operation of the grounding switch are relatively irrelevant, so that the operation is disordered, and the safety accident is caused.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a centrally installed switchgear interlocking mechanism for an electric grounding switch, which solves the problems in the prior art.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a put cabinet interlocking device for electric earthing switch, put cabinet and back cabinet concatenation in and form, put the interlocking device who is equipped with in the cabinet and be used for connecting electric earthing switch in, interlocking device includes guide rail interlocking structure, manual priority micro-gap switch structure, preceding lower door interlocking structure and back door interlocking structure, guide rail interlocking structure sets up in the cabinet before and links with the earthing switch operating shaft, be equipped with the spring bolt that can be connected with the guide rail in the guide rail interlocking structure, guide rail interlocking structure's output is equipped with the clamp plate that links to each other with guide rail interlocking structure and this clamp plate is installed in the earthing switch operating shaft, manual priority micro-gap switch structure establishes ties in the electric earthing switch operating circuit and links to each other with the clamp plate, preceding lower door interlocking structure sets up in the cabinet before and links to each other with the earthing switch operating shaft and be equipped with the pivot in, preceding lower door interlocking structure links to each other with the pivot, back door interlocking structure sets up in the cabinet after and is equipped with the band steel that links to each other with the back door in the interlocking structure. Guide rail interlocking structure: and the locking tongue interlocked with the guide rail is pulled into the guide rail when the grounding switch is in the opening position, and the circuit breaker can be rocked in or out at the moment. When the circuit breaker is in the test position, the grounding switch can be switched on. When the grounding switch is in a closing position, the lock tongue interlocked by the guide rail is pulled out, and the circuit breaker is locked at the test position and cannot be rocked in. Manual priority micro-gap switch structure: it is necessary to connect the manual priority microswitch in series to the electrical ground switch operating circuit. When the grounding switch is required to be manually operated, the pressing plate of the operating shaft is pressed down, the manual priority micro switch acts, the motor operating loop is cut off, and the manual operation priority is realized. Front lower door interlocking structure: the front lower door is welded with a shaft pin, and when the grounding switch is at the opening position, the drag hook hooks the shaft pin to realize the interlocking of the front lower door. When the grounding switch is in a closing position, the draw hook can release the shaft pin, and the front lower door can be opened at the moment. Rear door interlocking structure: when the grounding switch is at the opening position, the rear door interlock can hook the rear door, so that the rear door is interlocked. When the grounding switch is in a closing position, the rear door can be opened.
Preferably, a shaft a for limiting the grounding switch operating shaft is arranged in the grounding switch operating shaft. The grounding switch operating shaft has a limiting function, so that the grounding switch operating shaft can only rotate 90 degrees and is limited at the opening and closing positions corresponding to the grounding switch.
Preferably, the grounding switch operating shaft is provided with a shaft B which is interlocked with the guide rail interlocking structure. The grounding switch is interlocked with the guide rail, and the circuit breaker cannot swing in the closing position.
Preferably, a shaft C connected to the front lower door interlock structure is provided in the ground switch operation shaft. The grounding switch locks the front lower door at the opening position in an interlocking manner with the front lower door.
Preferably, the ground switch operating shaft is provided with a shaft D interlocking with the travel switch. The switch is interlocked with the travel switch, and the travel switch is operated by rotating the operation shaft to reflect the on-off state of the grounding switch.
Preferably, the grounding switch operating shaft is further provided with a shaft E for standby.
Preferably, the axis a, the axis B, the axis E, the axis C, and the axis D are disposed in the ground switch operation axis in order from right to left.
Preferably, a bracket connected with the rear door interlocking structure is arranged in the rear door interlocking structure, flat steel connected with a grounding switch operation shaft is connected in the bracket, and a grounding switch crank arm connected with the grounding switch operation shaft is arranged at the joint of the grounding switch operation shaft and the round steel. In view of the advantages of convenient operation, safety and the like, more and more user engineering choices are provided with the electric grounding switch. Besides the function of realizing the conventional interlocking, the device is also provided with a manual priority micro switch to realize the characteristic of manual priority operation.
This a put cabinet interlocking device for electric ground switch has following advantage:
1. when the rear door is interlocked, the part from the front of the cabinet to the grounding switch is made of round steel and is used for operating the opening and closing of the grounding switch. The grounding switch is a flat steel which is tightly attached to the side plate of the switch cabinet to the rear door, and is only used for interlocking the rear door, so that the safety distance requirement of 125mm of lap joint rows of the flat steel and C-phase cables in the cable chamber can be met.
2. The front lower chamber is provided with a manual priority micro-switch which is linked with a manually operated pressing plate, and a normally closed contact of the manual priority micro-switch is connected in series to an electric grounding switch operation loop. When the grounding switch is electrically operated, the micro switch is kept on. When the grounding switch needs to be manually operated, the operation hole can be exposed only by manually pressing the pressing plate, the micro switch acts when the pressing plate is pressed, and the electric operation loop is cut off. The grounding switch can only be operated manually at this time, so that the priority of manual operation is realized.
3. When the locking is realized with the guide rail, the main shaft of the grounding switch rotates to drive the lock tongue in the guide rail locking. When the grounding switch is in the opening position, the lock tongue is pulled into the guide rail, the guide rail is not blocked by the lock tongue, and the breaking structure can swing in or out. When the grounding switch is in a closing position, the lock tongue is pulled out, and the circuit breaking structure can only be at a test position. The interlocking logic is clear, the installation is convenient, and the use is reliable.
4. When the front door and the rear door are interlocked, the front door and the rear door are hooked by the draw hook at the opening position by the grounding switch, and the front door and the rear door can be opened after the draw hook is released by the grounding switch at the closing position. Simple, convenient, safe and reliable.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the front lower door interlock structure of the present utility model;
fig. 3 is a schematic structural view of the grounding switch operating shaft of the present utility model.
In the figure: 1. an interlocking mechanism; 2. a guide rail interlocking structure; 3. a manual priority microswitch structure; 4. a front lower door interlocking structure; 5. a rear door interlocking structure; 6. a ground switch operating shaft; 7. a bolt; 8. a pressing plate; 10. a shaft pin; 11. flat steel; 12. an axis A; 13. an axis B; 14. an axis C; 15. an axis D; 16. a bracket; 17. round steel; 18. a grounding switch crank arm; 19. and an axis E.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1 to 3, the present utility model provides a technical solution: the middle-placed cabinet interlocking mechanism for the electric grounding switch is formed by splicing a front cabinet and a rear cabinet, the middle-placed cabinet is internally provided with an interlocking mechanism 1 for connecting the electric grounding switch, the interlocking mechanism 1 comprises a guide rail interlocking structure 2, a manual priority micro-switch structure 3, a front lower door interlocking structure 4 and a rear door interlocking structure 5, the guide rail interlocking structure 2 is arranged in the front cabinet and is interlocked with a grounding switch operation shaft 6, the grounding switch operation shaft 6 is internally provided with a shaft A12 for limiting the grounding switch operation shaft 6, the grounding switch operation shaft 6 is internally provided with a shaft B13 interlocked with the guide rail interlocking structure 2, the grounding switch operation shaft 6 is internally provided with a shaft C14 connected with the front lower door interlocking structure 4, the grounding switch operation shaft 6 is internally provided with a shaft D15 interlocked with a travel switch, the grounding switch operation shaft 6 is also provided with a shaft E19 for standby, the shaft A12, the shaft B13, the shaft E19, the shaft C14 and the shaft D15 are sequentially arranged in the grounding switch operation shaft 6 from right to left, the guide rail interlocking structure 2 is provided with a lock tongue 7 which can be connected with a guide rail, the output end of the guide rail interlocking structure 2 is provided with a pressing plate 8 which is connected with the guide rail interlocking structure 2, the pressing plate 8 is arranged in the grounding switch operation shaft 6, the manual priority micro-switch structure 3 is connected in series in the electric grounding switch operation circuit and the manual priority micro-switch structure 3 is linked with the pressing plate 8, the front lower door interlocking structure 4 is arranged in the front cabinet and is connected with the operation shaft 9, the front cabinet is provided with a shaft pin 10, the drag hook in the front lower door interlocking structure 4 is connected with the shaft pin 10, the rear door interlocking structure 5 is arranged in the rear cabinet and the rear door interlocking structure 5 is provided with a flat steel 11 which is interlocked with the rear door, the rear door interlocking structure 5 is provided with a bracket 16 connected with the rear door interlocking structure 5, round steel 17 connected with the grounding switch operation shaft 6 is connected in the bracket 16, and a grounding switch crank arm 18 connected with the grounding switch operation shaft 6 is arranged at the joint of the grounding switch operation shaft 6 and the round steel 17.
The electrical structural elements appearing in the paper are all electrically connected with an external main control structure and 380V commercial power, and the main control structure can be a conventional known device for controlling a computer and the like.
In the description of the present specification, the terms "connected," "mounted," "fixed," "disposed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection or an indirect connection via an intermediate assembly without affecting the relationship of components and technical effects, or may be an integral connection or a partial connection, as in the case of this example, and as will be apparent to those skilled in the art, the specific meaning of the terms in the present utility model or the utility model may be understood in the specific case.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. In put cabinet interlocking device for electronic earthing switch, put cabinet and splice by preceding cabinet and back cabinet and form, put and be equipped with in the cabinet and be used for connecting electronic earthing switch's interlocking device (1), its characterized in that: the interlocking mechanism (1) comprises a guide rail interlocking structure (2), a manual priority micro-gap switch structure (3), a front lower door interlocking structure (4) and a rear door interlocking structure (5), wherein the guide rail interlocking structure (2) is arranged in a front cabinet and is linked with a grounding switch operation shaft (6), a lock tongue (7) which can be connected with a guide rail is arranged in the guide rail interlocking structure (2), a pressing plate (8) connected with the guide rail interlocking structure (2) is arranged at the output end of the guide rail interlocking structure (2), the pressing plate (8) is arranged in the grounding switch operation shaft (6), the manual priority micro-gap switch structure (3) is connected in series to the electric grounding switch operation circuit and is linked with the pressing plate (8), the front lower door interlocking structure (4) is arranged in the front cabinet and is connected with the grounding switch operation shaft (6) and is provided with a shaft pin (10), and a drag hook in the front lower door structure (4) is connected with the shaft pin (10), and the rear door interlocking structure (5) is arranged in the rear door interlocking structure (5) and is provided with a flat steel interlocking door (11).
2. The centrally installed switchgear interlock mechanism for an electrical grounding switch of claim 1 wherein: the grounding switch operation shaft (6) is provided with a shaft A (12) for limiting the grounding switch operation shaft (6).
3. The centrally installed switchgear interlock mechanism for an electrical grounding switch of claim 2 wherein: the grounding switch operation shaft (6) is provided with a shaft B (13) which is interlocked with the guide rail interlocking structure (2).
4. A centrally installed switchgear interlock mechanism for an electrical grounding switch as claimed in claim 3, wherein: the earthing switch operating shaft (6) is provided with a shaft C (14) connected with the front lower door interlocking structure (4).
5. The centrally installed switchgear interlock mechanism for an electrical grounding switch of claim 4 wherein: the grounding switch operation shaft (6) is provided with a shaft D (15) interlocked with the travel switch.
6. The centrally installed switchgear interlock mechanism for an electrical grounding switch of claim 5, wherein: the grounding switch operating shaft (6) is also provided with a shaft E (19) for standby.
7. The centrally installed switchgear interlock mechanism for an electrical grounding switch of claim 6 wherein: the shaft A (12), the shaft B (13), the shaft E (19), the shaft C (14) and the shaft D (15) are arranged in the grounding switch operation shaft (6) in sequence from right to left.
8. The centrally installed switchgear interlock mechanism for an electrical grounding switch of claim 7 wherein: the rear door interlocking structure (5) is internally provided with a bracket (16) connected with the rear door interlocking structure (5), round steel (17) connected with the grounding switch operation shaft (6) is connected in the bracket (16), and the connecting part of the grounding switch operation shaft (6) and the round steel (17) is provided with a grounding switch crank arm (18) connected with the grounding switch operation shaft (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320700398.4U CN219457392U (en) | 2023-03-28 | 2023-03-28 | Centrally installed switchgear interlocking mechanism for electric grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320700398.4U CN219457392U (en) | 2023-03-28 | 2023-03-28 | Centrally installed switchgear interlocking mechanism for electric grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219457392U true CN219457392U (en) | 2023-08-01 |
Family
ID=87414734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320700398.4U Active CN219457392U (en) | 2023-03-28 | 2023-03-28 | Centrally installed switchgear interlocking mechanism for electric grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219457392U (en) |
-
2023
- 2023-03-28 CN CN202320700398.4U patent/CN219457392U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201307531Y (en) | Five-prevention blocking device of switchgear | |
| CN219457392U (en) | Centrally installed switchgear interlocking mechanism for electric grounding switch | |
| CN210110585U (en) | Anti-misoperation device for earthing switch of ring main unit | |
| CN110112671B (en) | Plug-in type multifunctional interlocking mechanism of distribution box | |
| CN211828535U (en) | Low-voltage cabinet door mechanical interlocking device | |
| CN201717519U (en) | Linkage structure used for grounding knife of switch cabinet and cable chamber door | |
| CN206194632U (en) | Interlock of earthing switch AND gate of cubical switchboard | |
| CN212517095U (en) | Locking device and circuit breaker | |
| CN113327792A (en) | Three-station switch mechanism and cable chamber door interlocking device for environment-friendly inflating cabinet | |
| CN2929950Y (en) | Fall-down type fuse of radio remote control with lock device | |
| CN213340146U (en) | Mechanical interlocking structure of operating mechanism and transformer net door | |
| CN203193137U (en) | Live locking device for grounding switch of switchgear | |
| CN210246108U (en) | Lock detection mechanism for drawer type switch cabinet interlocking mechanism | |
| CN212695100U (en) | Electricity taking structure of circuit breaker | |
| CN111852245B (en) | Mechanical anti-misoperation locking device of 6kV high-voltage switch cabinet | |
| CN201307530Y (en) | Locking and tripping device for circuit breaker of switchgear | |
| CN113013771B (en) | Interlocking mechanism of switch equipment | |
| CN213459492U (en) | Locking device of switch cabinet | |
| CN211088109U (en) | Novel lower door interlocking device | |
| CN110473737A (en) | A kind of grounding switch operation interlocking mechanism | |
| CN215056170U (en) | Power distribution cabinet windproof and rainproof automatic locking device | |
| CN216928335U (en) | Ring main unit lower door interlocking mechanism | |
| CN214012866U (en) | Closing interlocking mechanism of circuit breaker operating mechanism | |
| CN213635823U (en) | Interlocking mechanism between load switch and earthing switch and ring main unit | |
| CN103474893A (en) | Grounding sequence lock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |