CN203690226U - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN203690226U CN203690226U CN201320867736.XU CN201320867736U CN203690226U CN 203690226 U CN203690226 U CN 203690226U CN 201320867736 U CN201320867736 U CN 201320867736U CN 203690226 U CN203690226 U CN 203690226U
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- Prior art keywords
- locking
- circuit breaker
- lock
- closing
- separating brake
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- Expired - Lifetime
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- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 230000009471 action Effects 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A circuit breaker comprises an operating mechanism and a switching-off locking device, wherein the operating mechanism comprises a switching-off tripping shaft (1) and a switching-on plate (2). The circuit breaker is characterized in that: the switching-off locking device comprises a mechanical procedure lock (3), a position switch (5) and a switching-on latching electromagnet (6); the mechanical procedure lock (3) comprises a shell body (31) and a lock rod (32), one end of the lock rod (32) is matched with the switching-off tripping shaft (1), and the other end is matched with an operating end of the position switch (5); a normally open contact of the position switch (5) is connected in series in a switching-on locking loop of the circuit breaker; a coil of the switching-on latching electromagnet (6) is connected in series in the switching-on locking loop of the circuit breaker, when the coil of the switching-on latching electromagnet (6) does not get electricity, an iron core blocking switching-on plate (2) of the switching-on latching electromagnet (6) moves to limit manual switching on. The switching-off tripping shaft is directly locked by the switching-off tripping device of the circuit breaker, the technical parts are few, the structure is simple, the operation is convenient, and the action is reliable.
Description
Technical field
The utility model relates to circuit breaker, is specifically related to a kind of circuit breaker with switch-off locking device.
Background technology
In distribution system, in order to ensure operation fail safe, reliability and prevent misoperation, sometimes need by lock for circuit breaker fix on open position be circuit breaker in gate-dividing state and do not allow close a floodgate.Therefore, need on circuit breaker, install switch-off locking device additional, the circuit breaker switching-off locking device of prior art (can be referring to Granted publication CN201946498U, the utility model patent of Granted publication day 2011.08.24), this device has the following disadvantages: 1) can not make breaker open operation by operation switch-off locking device, can only in the time of breaker open operation, operate switch-off locking device and lock circuit breaker; 2) cannot be by the electric combined floodgate interlocking of realizing separate unit or many circuit breakers.
Summary of the invention
The purpose of this utility model is to provide a kind of circuit breaker, must not make by operation switch-off locking device the problem of the direct separating brake of circuit breaker with solution.
For achieving the above object, the technical solution adopted in the utility model is: a kind of circuit breaker, comprise operating mechanism and switch-off locking device, and described operating mechanism comprises carries out the separating brake trip shaft of separating brake and the combined floodgate plate for electronic or closing by hand;
Described switch-off locking device comprises Mechanically programm's lock, position switch and closing locking electromagnet;
The corresponding described separating brake trip shaft of described Mechanically programm lock arranges, thereby Mechanically programm's lock comprises a housing and is arranged in the locking bar that the key turns with mechanical procedure lock in housing moves relative to housing; Match with separating brake trip shaft towards described separating brake trip shaft in one end of described locking bar, the other end of locking bar matches with the operating side of position switch; Thereby allow breaker open operation when locking bar presses separating brake trip shaft during towards the motion of described separating brake trip shaft, otherwise the operating side trigger position switch motion that presses position switch when locking bar in the time that position switch moves; The normally opened contact of described position switch is serially connected in the closing locking circuit of circuit breaker;
The corresponding described combined floodgate plate of described closing locking electromagnet arranges, this closing locking electromagnet comprises coil and iron core, closing locking magnet spool is serially connected in the closing locking circuit of circuit breaker, when closing locking magnet spool must not when electricity, the iron core of closing locking electromagnet stops the electronic or closing by hand of described combined floodgate plate movement limit.
In such scheme, described Mechanically programm lock is arranged at the below of separating brake trip shaft, and the locking bar of Mechanically programm's lock vertically arranges up and down, and the upper end of locking bar coordinates with separating brake trip shaft, and the lower end of locking bar coordinates with the operating side of position switch.
In such scheme, described switch-off locking device also comprises a mounting panel, and this mounting panel is made up of upper flap, vertical plate and lower side panel, and upper flap is relative up and down with lower side panel, and vertical plate is connected between flap and lower side panel; The housing of described Mechanically programm lock is fixed on the lower surface of flap, and position switch is fixed on lower side panel.
In such scheme, described " closing locking circuit " refers to the part control loop at closing locking magnet spool place, and this control loop generally includes the normally opened contact of closing locking magnet spool, position switch etc.After closing locking circuit conducting, electric by obtaining of closing locking magnet spool, make closing locking electromagnet realize the feed motion of circuit breaker to operating mechanism effect.
Because technique scheme is used, the utility model compared with prior art has following advantages:
Sub-gate release device of the present utility model directly locks separating brake trip shaft, and technical components is few, simple in structure, easy to operate, reliable in action, and closing locking electromagnet is installed simultaneously, can be by the electric combined floodgate interlocking of realizing separate unit or many circuit breakers.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model embodiment circuit breaker;
Fig. 2 is the structural representation one of the utility model embodiment Mechanically programm lock and position switch part, the figure shows switch-off locking device and is in released state;
Fig. 3 is the structural representation two of the utility model embodiment Mechanically programm lock and position switch part, the figure shows switch-off locking device and is in lock-out state.
In above accompanying drawing: 1, separating brake trip shaft; 2, combined floodgate plate; 3, Mechanically programm's lock; 31, housing; 32, locking bar; 321, locking bar upper end; 322,, locking bar lower end; 33, protuberance; 4, mounting panel; 41, upper flap; 42, vertical plate; 43, lower side panel; 5, position switch; 51, operating side; 6, closing locking electromagnet; 7, nut; 8, bent plate.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: see shown in Fig. 1-3:
A kind of circuit breaker, comprises operating mechanism and switch-off locking device, and described operating mechanism comprises carries out the separating brake trip shaft 1 of separating brake and the combined floodgate plate 2 for closing by hand.
Described switch-off locking device comprises Mechanically programm's lock 3, position switch 5 and closing locking electromagnet 6.Described Mechanically programm locks 3 corresponding described separating brake trip shaft 1 and is arranged in circuit breaker frame, thereby Mechanically programm's lock 3 comprises a housing 31 and is arranged in the locking bar 32 that the key turns with mechanical procedure lock 3 in housing 31 moves relative to housing 31.Match with separating brake trip shaft 1 towards described separating brake trip shaft 1 in one end of described locking bar 32, the other end of locking bar 32 matches with the operating side 51 of position switch 5.Thereby allow breaker open operation when locking bar 32 presses separating brake trip shaft 1 during towards the motion of described separating brake trip shaft, otherwise the operating side 51 trigger position switches 5 that press position switch 5 when locking bar 32 in the time that position switch 5 moves move.The normally opened contact of described position switch 5 is serially connected in the closing locking circuit of circuit breaker.
The corresponding described combined floodgate plate 2 of described closing locking electromagnet 6 is arranged on the framework of circuit breaker, this closing locking electromagnet 6 comprises coil and iron core, the coil tandem of closing locking electromagnet 6 is in the closing locking circuit of circuit breaker, in the time that the coil of closing locking electromagnet 6 must not electricity, the iron core of closing locking electromagnet 6 stops the electronic or closing by hand of described combined floodgate plate 2 movement limits.
Described Mechanically programm lock 3 is specifically arranged at the below of separating brake trip shaft 1, and the locking bar 32 of Mechanically programm's lock 3 vertically arranges up and down, and the upper end 321 of locking bar 32 coordinates with separating brake trip shaft 1, and the lower end 322 of locking bar 32 coordinates with the operating side 51 of position switch 5.In concrete separating brake trip shaft 1, be also provided with a bent plate 8, the upper end 321 of described locking bar 32 is to act on separating brake trip shaft 1 through bent plate 8.
Described switch-off locking device 1 also comprises a mounting panel 4, and this mounting panel 4 is made up of upper flap 41, vertical plate 42 and lower side panel 43, and upper flap 41 is relative up and down with lower side panel 43, and vertical plate 42 is connected between flap 41 and lower side panel 43; The housing 31 of described Mechanically programm lock 3 is fixed on the lower surface of flap 41, and position switch 5 is fixed on lower side panel 43.Concrete, the upper end of the housing 31 of Mechanically programm's lock 3 is provided with protuberance 33, and on this protuberance 33, with external screw thread and offer through hole, this protuberance 32 is fixed on upper flap by nut 7 is fastening through the hole of offering on upper flap 41.On lower side panel 43, have multiple installing holes, position switch 5 is fixed on lower side panel 43 by screw and installing hole, after position switch 5 is fixing, should guarantee the operating side 51 of position switch 5 upward, so that match with the lower end 322 of locking bar 32 in operating side 51.
The closing locking circuit of described circuit breaker refers to the part control loop at the coil place of closing locking electromagnet 6, and this control loop generally includes coil, the normally opened contact of position switch etc. of closing locking electromagnet 6.After closing locking circuit conducting, the coil by closing locking electromagnet 6 electric, make closing locking electromagnet 6 realize the feed motion of circuit breaker to operating mechanism effect.Owing to being in series with the normally opened contact of position switch 5 in closing locking circuit, only have when the effect downwards of the lower end 322 of locking bar 32 and when the operating side 51 of hit position switch 5, when position switch 5 conducting, the coil of closing coil latching electromagnet 6 could obtain electric and action, just can carry out electronic or closing by hand.
Specific works process is as follows: when switch-off locking device in released state as shown in Figure 2, the key of Mechanically programm's lock 3 can not be extracted, now the locking bar 31 of Mechanically programm lock 3 is in to upper/lower positions, press the operating side 51 of position switch 5, position switch 5 normally opened contact actions are closed, closing locking circuit is connected and can normally be worked, and in separating brake trip shaft 1, bent plate 2 departs from procedure lock, and circuit breaker can carry out normal separating brake, closing operation.
When the key of user's rotary machine procedure lock 3, on the locking bar 32 of driving device procedure lock 3, move to upwards position, make switch-off locking device convert lock-out state to, as shown in Figure 3, the key of Mechanically programm's lock 3 can be extracted, and now position switch 5 normally opened contact actions reset, closing locking electromagnet loop disconnects, closing locking electromagnet 6 can not obtain electric, and closing locking circuit disconnects, and the iron core of closing locking electromagnet 6 blocks the electronic or closing by hand of combined floodgate plate restriction; And the locking bar 32 of Mechanically programm's lock 3 upwards pushes up presses bent plate 8 in separating brake trip shaft 1, separating brake trip shaft 1 is rotated, thereby allow the direct separating brake of circuit breaker, circuit breaker is locked in gate-dividing state and does not allow to carry out closing operation.
In practical application, as realized two interlockings between circuit breaker, can share a key by Mechanically programm's lock 3 of two circuit breakers, when the switch-off locking device of circuit breaker is in released state, on its Mechanically programm's lock 3, slotting key just can not be extracted, the switch-off locking device transition status that can not remove to handle with this key other circuit breaker, the switch-off locking device that guarantees two circuit breakers with this can not switch to released state simultaneously.In like manner, if desired realize three interlockings between circuit breaker, can adopt Mechanically programm's lock 3 of three circuit breakers to share two keys, guarantee all the time that in all circuit breakers, having a circuit breaker is to be in the lock state.
The Sub-gate release device of the present embodiment directly locks separating brake trip shaft, and technical components is few, simple in structure, easy to operate, reliable in action, and closing locking electromagnet is installed simultaneously, can be by the electric combined floodgate interlocking of realizing separate unit or many circuit breakers.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.
Claims (3)
1. a circuit breaker, comprises operating mechanism and switch-off locking device, and described operating mechanism comprises carries out the separating brake trip shaft (1) of separating brake and the combined floodgate plate (2) for electronic or closing by hand, it is characterized in that:
Described switch-off locking device comprises Mechanically programm lock (3), position switch (5) and closing locking electromagnet (6);
Described Mechanically programm lock (3) corresponding described separating brake trip shaft (1) arrange, Mechanically programm's lock (3) comprise a housing (31) and be arranged in housing (31) thus in the locking bar (32) that moves relative to housing (31) of the key turns with mechanical procedure lock; Match with separating brake trip shaft (1) towards described separating brake trip shaft (1) in one end of described locking bar (32), the other end of locking bar (32) matches with the operating side (51) of position switch (5); Press separating brake trip shaft (1) when locking bar (32) during towards the motion of described separating brake trip shaft thus allow breaker open operation, otherwise operating side (51) the trigger position switch (5) that presses position switch (5) when locking bar (32) in the time that position switch (5) moves moves; The normally opened contact of described position switch (5) is serially connected in the closing locking circuit of circuit breaker;
The corresponding described combined floodgate plate of described closing locking electromagnet (6) (2) arranges, this closing locking electromagnet (6) comprises coil and iron core, the coil tandem of closing locking electromagnet (6) is in the closing locking circuit of circuit breaker, in the time that the coil of closing locking electromagnet (6) must not electricity, the iron core of closing locking electromagnet stops the electronic or closing by hand of described combined floodgate plate (2) movement limit.
2. circuit breaker according to claim 1, it is characterized in that: described Mechanically programm's lock (3) is arranged at the below of separating brake trip shaft (1), the locking bar (32) that is Mechanically programm's lock (3) vertically arranges up and down, the upper end (321) of locking bar (32) coordinates with separating brake trip shaft (1), and the lower end (322) of locking bar (32) coordinates with the operating side (51) of position switch (5).
3. circuit breaker according to claim 2, it is characterized in that: described switch-off locking device (1) also comprises a mounting panel (4), this mounting panel (4) is made up of upper flap (41), vertical plate (42) and lower side panel (43), upper flap (41) is relative up and down with lower side panel (43), and vertical plate (42) is connected between flap (41) and lower side panel (43); The housing (31) of described Mechanically programm's lock (3) is fixed on the lower surface of flap (41), and position switch (5) is fixed on lower side panel (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867736.XU CN203690226U (en) | 2013-12-26 | 2013-12-26 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867736.XU CN203690226U (en) | 2013-12-26 | 2013-12-26 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690226U true CN203690226U (en) | 2014-07-02 |
Family
ID=51012098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320867736.XU Expired - Lifetime CN203690226U (en) | 2013-12-26 | 2013-12-26 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203690226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493068A (en) * | 2018-05-14 | 2018-09-04 | 河南森源电气股份有限公司 | A kind of spring operating mechanism and the breaker using the operating mechanism |
-
2013
- 2013-12-26 CN CN201320867736.XU patent/CN203690226U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493068A (en) * | 2018-05-14 | 2018-09-04 | 河南森源电气股份有限公司 | A kind of spring operating mechanism and the breaker using the operating mechanism |
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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 |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |