CN201936776U - Closing interlocking mechanism for vacuum circuit breaker - Google Patents
Closing interlocking mechanism for vacuum circuit breaker Download PDFInfo
- Publication number
- CN201936776U CN201936776U CN2011200973629U CN201120097362U CN201936776U CN 201936776 U CN201936776 U CN 201936776U CN 2011200973629 U CN2011200973629 U CN 2011200973629U CN 201120097362 U CN201120097362 U CN 201120097362U CN 201936776 U CN201936776 U CN 201936776U
- Authority
- CN
- China
- Prior art keywords
- combined floodgate
- vacuum circuit
- transmission shaft
- circuit breaker
- closing
- 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.)
- Expired - Lifetime
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a closing interlocking mechanism for a vacuum circuit breaker. The closing interlocking mechanism comprises a transmission shaft, a closing interlocking rod and a closing curved plate, wherein the transmission shaft is mounted on a vacuum circuit breaker case through a fixing plate; one end of the transmission shaft is connected to an interlock linked with an isolating switch, and the other end of the transmission shaft is connected to the bottom end of the closing interlocking rod; the upper end of the closing interlocking rod is close to the bottom at one end of the closing curved plate; a return spring with one end fixed on the fixing plate and the other end connected to the bottom of the closing interlocking rod is arranged on the fixing plate; and a limit plate is further arranged on the fixing plate. The closing interlocking mechanism adopts a simple and effective structure, and structurally solves the misoperation problem of the vacuum circuit breaker and eliminates potential safety hazards.
Description
Technical field
The utility model relates to a kind of a kind of combined floodgate interlocking device of vacuum circuit-breaker technical field, especially vacuum circuit-breaker.
Background technology
According to the relevant criterion of electric power system, the high pressure switchgear assembly must possess " five is anti-" function.Vacuum circuit-breaker in the switch cubicle must be provided with relevant interlocking device, otherwise, cause user misoperation easily, cause serious accident.There is separating brake dropout mode in existing vacuum circuit-breaker interlocking device, can realize preventing the on-load branch, closing isolating switch, and promptly when circuit breaker is in "on" position, can not disconnecting switch operation; But can not realize preventing the mistake branch, close circuit breaker, the user might carry out misoperation under unwitting situation, have potential safety hazard.
The utility model content
The purpose of this utility model is to provide a kind of vacuum circuit-breaker combined floodgate interlocking device, solves the misoperation problem of high voltage electric power equip ment from structure, eliminates safe hidden trouble, and improves the security performance of switch control cubicle, thereby guarantees the stable operation of electric power system.
The technical solution of the utility model is: a kind of vacuum circuit-breaker combined floodgate interlocking device, comprise power transmission shaft, the combined floodgate blocking lever, the combined floodgate bent plate, wherein, power transmission shaft is installed on the vacuum circuit-breaker cabinet by fixed head, on the interlocking that the one end is connected with isolating switch connects, the other end is connected with the bottom of combined floodgate blocking lever, and the upper end of combined floodgate blocking lever is near the bottom portion at the combined floodgate bent plate.
Described fixed head is provided with back-moving spring, and the one end is fixed on the fixed head, and the other end is connected with the bottom of combined floodgate blocking lever.
Also be provided with limiting plate on the described fixed head.
It is simple in structure that the utility model adopts, and reliable transmission has guaranteed effective performance of interlocking effect, has improved the security performance of vacuum circuit-breaker.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a left side of the present utility model schematic diagram;
Among the figure: the 1-power transmission shaft, 2-combined floodgate blocking lever, 3-combined floodgate bent plate, the 4-pin, the 5-limiting plate, the 6-fixed head, the 7-back-moving spring, the interlocking that 8-is connected with isolating switch, the A-circuit breaker is in the separating brake position, and the B-circuit breaker is in closing position.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As Fig. 1 and Fig. 2, the vacuum circuit-breaker combined floodgate interlocking device that the utility model provides, comprise power transmission shaft 1, combined floodgate blocking lever 2, combined floodgate bent plate 3, wherein, power transmission shaft 1 is installed on the vacuum circuit-breaker cabinet by fixed head 6, the one end is connected on the interlocking 8 that connects with isolating switch, and the other end is connected with the bottom of combined floodgate blocking lever 2, and the upper end of combined floodgate blocking lever 2 is near the bottom portion at combined floodgate bent plate 3.Described fixed head 6 is provided with back-moving spring 7, and the one end is fixed on the fixed head 6, and the other end is connected with the bottom of combined floodgate blocking lever 2, and limiting plate 5 is fixed on the fixed head 6, guarantees the track that moves up and down of power transmission shaft 1.
During concrete operations: when the isolator operation handle is in operating position, the interlocking 8 that connects with isolating switch upwards promotes power transmission shaft 1, and power transmission shaft 1 drives combined floodgate blocking lever 2 and rises, and withstands combined floodgate bent plate 3, makes its akinesia, also just can not close a floodgate.Cut off sensitive switch simultaneously, this moment, circuit breaker was electronic and manually all can not close a floodgate.When isolating switch was in service position or maintenance position, power transmission shaft 1 moved downward under the effect that is hung on the back-moving spring 7 on combined floodgate blocking lever 2 and the fixed head 6, and the constraint to combined floodgate bent plate 3 is removed in the upper end of the blocking lever 2 that closes a floodgate this moment, and circuit breaker can close a floodgate.Pin 4 falls when circuit breaker is in closing position, and power transmission shaft 1 can not be moved, and can not make the isolator operation handle be in operating position this moment.If user misoperation isolator operation handle can be found and can't operate this moment, will reaffirm situation, thereby reach the purpose that prevents that mistake from dividing, mistake is closed circuit breaker.
Certainly, those skilled in the art also can be transformed into cylindrical shroud to the limiting plate on the fixed head 65, is used for limiting the track that moves up and down of power transmission shaft 1.
What the utility model adopted is simple in structure effective, and the part processing difficulty is little, easy for installation.Promptly when isolated operation mechanism was in operating position, circuit breaker all can't close a floodgate manual and electronic employing the utility model.Otherwise when circuit breaker was in "on" position, isolated operation mechanism can't reach mode of operation, satisfied the requirement that prevents the on-load branch, closes isolating switch.When the user is ignorant, when circuit breaker is in closing position again, can not operates the interrupter handle and reach operating position, satisfied preventing to divide by mistake, close circuit breaker
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (3)
1. vacuum circuit-breaker combined floodgate interlocking device, comprise power transmission shaft (1), combined floodgate blocking lever (2), combined floodgate bent plate (3), it is characterized in that: power transmission shaft (1) is installed on the vacuum circuit-breaker cabinet by fixed head (6), the one end is connected on the interlocking (8) that connects with isolating switch, and the other end is connected with the bottom of combined floodgate blocking lever (2), and the upper end of combined floodgate blocking lever (2) is near the bottom portion at combined floodgate bent plate (3).
2. vacuum circuit-breaker combined floodgate according to claim 1 interlocking device, it is characterized in that: described fixed head (6) is provided with back-moving spring (7), and the one end is fixed on the fixed head (6), and the other end is connected with the bottom of combined floodgate blocking lever (2).
3. vacuum circuit-breaker combined floodgate according to claim 1 and 2 interlocking device is characterized in that: also be provided with limiting plate (5) on the described fixed head (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200973629U CN201936776U (en) | 2011-04-06 | 2011-04-06 | Closing interlocking mechanism for vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200973629U CN201936776U (en) | 2011-04-06 | 2011-04-06 | Closing interlocking mechanism for vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936776U true CN201936776U (en) | 2011-08-17 |
Family
ID=44448292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200973629U Expired - Lifetime CN201936776U (en) | 2011-04-06 | 2011-04-06 | Closing interlocking mechanism for vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936776U (en) |
-
2011
- 2011-04-06 CN CN2011200973629U patent/CN201936776U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |