CN201307530Y - Locking and tripping device for circuit breaker of switchgear - Google Patents
Locking and tripping device for circuit breaker of switchgear Download PDFInfo
- Publication number
- CN201307530Y CN201307530Y CNU2008202040126U CN200820204012U CN201307530Y CN 201307530 Y CN201307530 Y CN 201307530Y CN U2008202040126 U CNU2008202040126 U CN U2008202040126U CN 200820204012 U CN200820204012 U CN 200820204012U CN 201307530 Y CN201307530 Y CN 201307530Y
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- shaft
- circuit breaker
- trip
- tripping
- trip shaft
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Abstract
Disclosed is a locking and tripping device for a circuit breaker of a switchgear, which comprises a locking handle; the locking handle is integrally and fixedly connected with a shifting fork; the vicinity of the locking handle is provided with an upper rotating shaft and a lower rotating shaft; wherein the lower rotating shaft is connected with the locking handle; the upper rotating shaft is integrally connected with a tongue piece; and the position of the tongue piece of the upper rotating shaft is matched with that of a fork port of the shifting fork of the locking handle; the locking and tripping device is also provided with a support plate which is used for installing the breaker, a tripping support block which is used for connecting with the breaker tripping device, a breaker main shaft transmission mechanism and a breaker tripping shaft transmission mechanism; the support plate comprises a horizontal cross plate and a vertical stringer plate; the horizontal cross plate is provided with a small hole; the tripping support block can pass through the small hole by moving up and down; a tripping driving piece is arranged below the tripping support block, and the lower end of the tripping support block is pressed on the tripping driving piece; and the tripping driving piece below the tripping support block is integrally connected with the tripping shaft. The device is matched with a 3AH breaker, and the movement thereof is completely realized by mechanical structure, and the device is safe and reliable.
Description
Technical field
The utility model belongs to electric power corollary equipment technical field, is specifically related to a kind of locking trip gear of switch cubicle circuit breaker.
Background technology
The task of being used for fixing the locking trip gear of circuit breaker in the formula switch cubicle is that the divide-shut brake of circuit breaker is restricted, and to guarantee safety, the operation of this device comes transmission by the latch handle of rotating disk mechanism, and its operation must meet following safety regulations:
1. when latch handle was pulled out to the disjunction locked position of coupler, the cabinet foregate was in the state of closing the door, but earthed switch, isolating switch divide-shut brake in the cabinet, but circuit breaker can't close a floodgate;
2. when latch handle was pulled out to the service position, the cabinet foregate was in the state of closing the door, and the earthed switch in the cabinet is in gate-dividing state, and isolating switch is in "on" position, and circuit breaker can also close a floodgate in first energy storage;
3. when latch handle was pulled out to the maintenance position, the isolating switch in the cabinet was in gate-dividing state, and earthed switch is in "on" position, and the cabinet foregate can be opened, and circuit breaker can carry out the divide-shut brake test.
Though the locking trip gear of existing switch cubicle circuit breaker has above-mentioned functions, their wherein part of functions need realize that its security performance is poor by electric component, misoperation occurs easily and causes security incident.In addition, because that the model of circuit breaker has is varied, the circuit breaker of different model needs the locking trip gear of different structure, but in the prior art, still finds no the locking trip gear that can be adapted to the 3AH circuit breaker.
Summary of the invention
The purpose of this utility model provides a kind of locking trip gear of switch cubicle circuit breaker, and it is adapted to cooperate with the 3AH circuit breaker, and all dependence mechanical structure realizations of its action, and is safe and reliable.
For realizing above purpose, the locking trip gear of switch cubicle circuit breaker of the present utility model comprises latch handle, its main feature is, the latch handle one is fixedly connected with fork, be provided with rotating shaft and lower rotary shaft near the latch handle, wherein lower rotary shaft is connected with latch handle, and last rotating shaft is connected with tongue piece, the prong location matches of the position of last rotating shaft tongue piece and latch handle fork; This locking trip gear also is provided with a seat board that is used to install circuit breaker, piece, circuit breaker spindle drive and circuit breaker tripping shaft transmission are propped up in the dropout that is used for being connected with the circuit breaker tripping device; Prop up seat board and comprise horizontal cross plate and vertical stringer board, horizontal cross plate is provided with aperture, and a piece of threading off can pass this aperture up or down, is provided with the dropout driving chip below the piece of threading off, and a piece lower end of threading off is pressed on the dropout driving chip; The circuit breaker spindle drive comprises circuit breaker main shaft, connecting lever, pull bar, contiguous block and the connecting plate that connects successively, and connecting plate is connected with described upward rotating shaft; The circuit breaker tripping shaft transmission comprises trip shaft, trip shaft connecting lever, trip shaft contiguous block, trip shaft pull bar, trip shaft connector and the dropout plate that connects successively, and the dropout plate is connected with described lower rotary shaft; The dropout driving chip is connected with the trip shaft one.
The circuit breaker main shaft is installed on the vertical stringer board, and an end of circuit breaker main shaft is fixedlyed connected with an end of connecting lever, and the other end of connecting lever is provided with circular hole, and pull bar is provided with a slotted hole, and a pin passes the circular hole of connecting lever and the slotted hole of pull bar, and pull bar and connecting lever are linked together; The other end of pull bar is fixedlyed connected with contiguous block, and an end of contiguous block and connecting plate is hinged.
The circuit breaker tripping axle is installed on the horizontal cross plate below, one end of trip shaft is fixedlyed connected with an end of trip shaft connecting lever, the other end of trip shaft connecting lever is provided with a circular hole, the trip shaft contiguous block is provided with a slotted hole, one pin passes the slotted hole of trip shaft contiguous block and the circular hole of trip shaft connecting lever, and trip shaft connecting lever and trip shaft contiguous block are linked together; The trip shaft contiguous block is fixedlyed connected with the trip shaft pull bar, trip shaft pull bar and coaxial the fixedlying connected of dropout plate connector, and dropout plate connector and dropout plate are hinged, and the dropout plate is connected with lower rotary shaft in the latch handle.
The utlity model has following advantage and effect: the utility model is by the machine driving of latch handle, circuit breaker spindle drive and circuit breaker tripping shaft transmission, can realize 3AH circuit breaker and isolating switch, earthed switch and cabinet foregate interlocking, ceiling structure has been decided operating personnel and must have been operated by operational procedure from machinery, effective like this people of preventing is misoperation, the reliability height, improve the fail safe of fixed switch cubicle greatly, and simple in structure.
Description of drawings
Fig. 1 is the general assembly structural representation of the utility model locking trip gear.
Fig. 2 is the end view of structure shown in Figure 1.
Fig. 3 is the sectional perspective structural representation among Fig. 1.
Embodiment
The locking trip gear of Fig. 1, Fig. 2, switch cubicle circuit breaker shown in Figure 3 comprises latch handle 17, the latch handle one is fixedly connected with fork 20, be provided with rotating shaft 21 and lower rotary shaft 22 near the latch handle, wherein lower rotary shaft 22 directly is connected with latch handle 17, last rotating shaft 21 is connected with tongue piece, the prong location matches of the position of last rotating shaft tongue piece and latch handle fork; This locking trip gear also is provided with a seat board that is used to install circuit breaker, piece 10 is propped up in the dropout that is used for being connected with the circuit breaker tripping device; Also be provided with circuit breaker spindle drive and circuit breaker tripping shaft transmission.
Fig. 1, Fig. 2, shown in Figure 3, the circuit breaker spindle drive comprises circuit breaker main shaft 16, connecting lever 12, pull bar 11, contiguous block 13 and the connecting plate 19 that connects successively, the circuit breaker main shaft is installed on the vertical stringer board 18, one end of circuit breaker main shaft 16 is fixedlyed connected with an end of connecting lever 12, the other end of connecting lever 12 is provided with circular hole, pull bar 11 is provided with a slotted hole, and a pin 14 passes the circular hole of connecting lever and the slotted hole of pull bar, and pull bar 11 and connecting lever 12 are linked together; The other end of pull bar 11 is fixedlyed connected with contiguous block 13, and contiguous block 13 is hinged with an end of connecting plate 19, and the other end of connecting plate 19 is connected with last rotating shaft 21.
The circuit breaker tripping shaft transmission comprises trip shaft 9, trip shaft connecting lever 4, trip shaft contiguous block 3, trip shaft pull bar 1, trip shaft connector 2 and the dropout plate 6 that connects successively, and dropout plate 6 is connected with described lower rotary shaft 22; Prop up seat board and comprise horizontal cross plate 23 and vertical stringer board 18, horizontal cross plate 23 is provided with aperture, and a piece 10 of threading off can pass this aperture up or down, is provided with dropout driving chip 24 below the piece of threading off, and piece 10 lower end of threading off are pressed on the dropout driving chip 24; A dropout driving chip 24 of piece below of threading off is connected with trip shaft 9 one.Circuit breaker tripping axle 9 is installed on horizontal cross plate 23 belows, one end of trip shaft 9 is fixedlyed connected with an end of trip shaft connecting lever 4, the other end of trip shaft connecting lever 4 is provided with a circular hole, trip shaft contiguous block 3 is provided with a slotted hole, one pin 5 passes the slotted hole of trip shaft contiguous block 3 and the circular hole of trip shaft connecting lever 2, and trip shaft connecting lever 4 and trip shaft contiguous block 3 are linked together; Trip shaft contiguous block 3 is fixedlyed connected with trip shaft pull bar 1, trip shaft pull bar 1 and dropout plate connector 2 coaxial fixedlying connected, and dropout plate connector 2 is hinged with dropout plate 6, and dropout plate 6 is connected with lower rotary shaft 22 in the latch handle.
When the foregoing description used, a piece 10 of threading off was added on the trip gear of circuit breaker self.
The use principle of the foregoing description is as follows:
Behind the breaker closing, the angle of 3AH circuit breaker main shaft 16 changes, drive main shaft connecting lever 12, pull bar 11, contiguous block 13 and connecting plate 19 actions successively, and making rotating shaft 21 actions, the tongue piece in the last rotating shaft 21 blocks the fork 20 of latch handle 17, and latch handle 17 can not be stirred, be in a fixed position (being the service position), this moment, the cabinet foregate was in the state of closing the door, and earthed switch is in gate-dividing state, and isolating switch is in "on" position.
Behind the breaker open operation, the angle rotary of 3AH circuit breaker main shaft 16, drive main shaft connecting lever 12, pull bar 11, contiguous block 13 and connecting plate 19 counteragents successively, and last rotating shaft 21 counteragents, the tongue piece of last rotating shaft 21 is subjected to no longer blocking behind the downward pulling force fork 20 on the latch handle 17, latch handle 17 can be pulled out from the service position to the disjunction locked position of coupler, and this moment, the cabinet foregate was in the state of closing the door, but earthed switch, isolating switch divide-shut brake; With the isolating switch separating brake, again earthed switch is closed a floodgate earlier, then latch handle 17 is pulled out to the maintenance position from the disjunction locked position of coupler, just can open the cabinet foregate and overhaul; When the cabinet foregate was in open mode, latch handle 17 was in the maintenance position all the time.
When latch handle 17 is pulled out to the disjunction locked position of coupler from the service position, rotated certain angle again, drive dropout driving chip 24 and rotate up by lower rotary shaft 22, dropout plate 6, trip shaft pull bar 1, trip shaft contiguous block 3, trip shaft connecting lever 4, trip shaft 9, make dropout driving chip 24 upwards back down a piece 10 of threading off, a piece 10 of threading off is moved together with the inner trip gear of 3AH circuit breaker, guarantee that the vacuum bubbles of 3AH circuit breaker is in gate-dividing state.
Claims (3)
1. the locking trip gear of a switch cubicle circuit breaker, comprise latch handle, it is characterized in that: the latch handle one is fixedly connected with fork, be provided with rotating shaft and lower rotary shaft near the latch handle, wherein lower rotary shaft is connected with latch handle, last rotating shaft is connected with tongue piece, the prong location matches of the position of last rotating shaft tongue piece and latch handle fork; This locking trip gear also is provided with a seat board that is used to install circuit breaker, piece, circuit breaker spindle drive and circuit breaker tripping shaft transmission are propped up in the dropout that is used for being connected with the circuit breaker tripping device; Prop up seat board and comprise horizontal cross plate and vertical stringer board, horizontal cross plate is provided with aperture, and a piece of threading off can pass this aperture up or down, is provided with the dropout driving chip below the piece of threading off, and a piece lower end of threading off is pressed on the dropout driving chip; The circuit breaker spindle drive comprises circuit breaker main shaft, connecting lever, pull bar, contiguous block and the connecting plate that connects successively, and connecting plate is connected with described upward rotating shaft; The circuit breaker tripping shaft transmission comprises trip shaft, trip shaft connecting lever, trip shaft contiguous block, trip shaft pull bar, trip shaft connector and the dropout plate that connects successively, and the dropout plate is connected with described lower rotary shaft; The dropout driving chip is connected with the trip shaft one.
2, the locking trip gear of switch cubicle circuit breaker according to claim 1, it is characterized in that: the circuit breaker main shaft is installed on the vertical stringer board, one end of circuit breaker main shaft is fixedlyed connected with an end of connecting lever, the other end of connecting lever is provided with circular hole, pull bar is provided with a slotted hole, one pin passes the circular hole of connecting lever and the slotted hole of pull bar, and pull bar and connecting lever are linked together; The other end of pull bar is fixedlyed connected with contiguous block, and an end of contiguous block and connecting plate is hinged.
3, the locking trip gear of switch cubicle circuit breaker according to claim 1, it is characterized in that: the circuit breaker tripping axle is installed on the horizontal cross plate below, one end of trip shaft is fixedlyed connected with an end of trip shaft connecting lever, the other end of trip shaft connecting lever is provided with a circular hole, the trip shaft contiguous block is provided with a slotted hole, one pin passes the slotted hole of trip shaft contiguous block and the circular hole of trip shaft connecting lever, and trip shaft connecting lever and trip shaft contiguous block are linked together; The trip shaft contiguous block is fixedlyed connected with the trip shaft pull bar, trip shaft pull bar and coaxial the fixedlying connected of dropout plate connector, and dropout plate connector and dropout plate are hinged, and the dropout plate is connected with lower rotary shaft in the latch handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202040126U CN201307530Y (en) | 2008-11-20 | 2008-11-20 | Locking and tripping device for circuit breaker of switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202040126U CN201307530Y (en) | 2008-11-20 | 2008-11-20 | Locking and tripping device for circuit breaker of switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307530Y true CN201307530Y (en) | 2009-09-09 |
Family
ID=41099997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202040126U Expired - Fee Related CN201307530Y (en) | 2008-11-20 | 2008-11-20 | Locking and tripping device for circuit breaker of switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307530Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231457A (en) * | 2017-12-28 | 2018-06-29 | 施耐德万高（天津）电气设备有限公司 | A kind of disconnecting switch closing-opening device |
| CN108493021A (en) * | 2018-06-07 | 2018-09-04 | 广东电网有限责任公司 | Dropout blocking device and box-shaped fixed type alternating current metal closed switch |
-
2008
- 2008-11-20 CN CNU2008202040126U patent/CN201307530Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231457A (en) * | 2017-12-28 | 2018-06-29 | 施耐德万高（天津）电气设备有限公司 | A kind of disconnecting switch closing-opening device |
| CN108493021A (en) * | 2018-06-07 | 2018-09-04 | 广东电网有限责任公司 | Dropout blocking device and box-shaped fixed type alternating current metal closed switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20171120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |