CN203562346U - Interlocking device used for frame-type circuit breaker - Google Patents
Interlocking device used for frame-type circuit breaker Download PDFInfo
- Publication number
- CN203562346U CN203562346U CN201320490643.XU CN201320490643U CN203562346U CN 203562346 U CN203562346 U CN 203562346U CN 201320490643 U CN201320490643 U CN 201320490643U CN 203562346 U CN203562346 U CN 203562346U
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- circuit breaker
- block piece
- frame
- shift
- piece
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Abstract
The utility model provides an interlocking device used for a frame-type circuit breaker. The frame-type circuit breaker comprises a fixed frame (1), a circuit breaker main body (2), and a shift in/out device (4). The circuit breaker main body (2) is disposed in the frame and can be moved out of the frame. The shift in/out device (4) is provided with an operating hole. The shift in/out device (4) is suitable to accept an operation rod so as to shift the circuit breaker main body (2) in and out of the frame. The interlocking device is disposed between the shift in/out device and a tripping mechanism (20) of the circuit breaker main body, and comprises a shielding component (3), an actuating component, a transmission mechanism, and a locking component (5). The shielding component can move between a first position and a second position. The shielding component at least partly shields the operating hole on the first position and exposes the operating hole on the second position. An end of the actuating component is connected with the tripping mechanism. The transmission mechanism acts between the shielding component (3) and the actuating component. The locking component (5) is disposed on the shielding component. When the shielding component moves from the first position to the second position, the transmission mechanism makes the actuating component move to a tripping position where the tripping mechanism is in a tripped state, and the locking component moves with the shielding component and locks the actuating component on the tripping position.
Description
Technical field
The utility model relates to low pressure, middle piezoelectricity gas apparatus field, relates in particular to the interlock for frame-type circuit breaker.
Background technology
Circuit breaker is a kind of electric switch that overcurrent (exceeding the electric current of the rated current of load) infringement is provided for the protection of provided load.Circuit breaker generally comprises a pair of contact disconnecting on the primary current path between power supply and load, and circuit breaker is arranged in break contact under overcurrent situations, to disconnect the continuity of power supply.
Frame type air circuit breaker (also referred to as frame-type circuit breaker) has two kinds, fixed and extraction type.Convenient for maintaining, frame-type circuit breaker mostly is extraction type, and circuit breaker is arranged in fixing framework, and can from framework, extract out along extracting track out.Frame type air circuit breaker has connection, test and disconnects three positions, has the indication of circuit breaker withdrawn position on panel.Link position is normal operation of circuit breaker position, circuit breaker standing part and can extraction unit divide between main circuit, control circuit connector all in connection status.In test position, circuit breaker standing part and can extraction unit divide between control circuit connector in connection status, main circuit connector is in off-state.Control circuit is connected, and can test combined floodgate, separating brake and various dropouts etc. and control function, while closing a floodgate test, even if contact of breaker closure also can not be connected the main circuit of disconnection.At open position, circuit breaker standing part and can extraction unit divide between the connector of main circuit, control circuit etc. all in off-state, circuit breaker can be safeguarded, be maintained, overhaul to whole circuit breaker, completely without electricity, safely.
In the use of frame-type circuit breaker, based on security consideration, can not still under "on" position, circuit breaker be shifted out from framework at circuit breaker.Therefore require can interlock reliably between shift-in/shift-out mechanism and breaker open operation mechanism, to guarantee that circuit breaker must be the state in separating brake when circuit breaker is during at the state in shifting out from framework.
But the Interlocking System of current frame-type circuit breaker often can not guarantee absolutely Interlock Reliability.Sometimes the interlocking between shift-in/shift-out mechanism and brake separating mechanism lost efficacy, but user is also ignorant, under these circumstances circuit breaker was shifted out from framework to the as easy as rolling off a log security incident that causes.Or although interlocking did not lose efficacy between shift-in/shift-out mechanism and brake separating mechanism, after action has delay to make user shake out certain distance, circuit breaker just carries out the action of separating brake, also can cause security incident.
Therefore, need to provide a kind of interlock, it can solve the unreliable problem of interlocking between above-mentioned shift-in/shift-out mechanism and brake separating mechanism in frame type air circuit breaker use procedure.
Summary of the invention
For this reason, the utility model provides a kind of interlock for frame-type circuit breaker, and it can guarantee that circuit breaker avoids occurring security incident in gate-dividing state all the time when user can operate shift-in/moving-out device completely.
Therefore, the utility model provides a kind of interlock for frame-type circuit breaker, and this frame-type circuit breaker comprises: fixing framework; Be arranged in this framework and the breaker body that can shift out from this framework; Shift-in/moving-out device, it has handle hole, and this handle hole is suitable for receiving action bars, with by this framework of this breaker body shift-in/shift out; Wherein this interlock is arranged between this shift-in/moving-out device and the brake separating mechanism of this breaker body, and this interlock is included in block piece mobile between primary importance and the second place, and this block piece blocks at least partly this handle hole and exposes this handle hole in this second place in this primary importance; The actuated piece that one end engages with this brake separating mechanism; The transmission mechanism acting between this block piece and this actuated piece; Be arranged on the locking piece on this block piece; Wherein, when this block piece moves to this second place from this primary importance, this block piece, by this transmission mechanism, make this actuated piece move to the open position of this brake separating mechanism in gate-dividing state, and this locking piece is locked in this open position by this actuated piece.
In said frame formula circuit breaker, if operation shift-in/moving-out device when shift out breaker body from framework, first mobile block piece is abdicated handle hole, when block piece is moved to the second place from primary importance, can drive brake separating mechanism to move to open position, and be locked in open position by locking piece, thereby while guaranteeing to operate shift-in/moving-out device, circuit breaker is all the time in gate-dividing state.
According to a preferred version of the present utility model, block piece is arranged on shift-in/moving-out device, this transmission mechanism comprises the tooth bar being arranged on this block piece and the interlocking gear being meshed with this tooth bar, the upper surface of this interlocking gear has inclined plane part, this inclined plane part matches with the other end of this actuated piece, when this block piece moves to this second place from this primary importance, this interlocking gear of this rack drives rotates, and then this actuated piece is moved to this open position.This tooth bar preferably and block piece be made into integration, but also can be fixed to block piece by other appropriate means known in the art.In order to make more compact structure, interlocking gear is preferably installed in rotation on this shift-in/moving-out device base plate
According to a preferred version, block piece has the slotted eye extending along its moving direction, and described shift-in/moving-out device also comprises locating part, and it matches block piece to be limited in to this second place with slotted eye.
In the utility model, advantageously, also comprise the back-moving spring that makes block piece turn back to this primary importance from this second place, this back-moving spring one end is fixed to this shift-in/moving-out device, the other end is fixed to this block piece.
Actuated piece is preferably the blocking lever of portrait orientation, its upper end engages with brake separating mechanism, lower end has and is suitable for the planar portions that matches with this inclined plane part, when this interlocking gear rotates, by this inclined plane part and coordinating of this planar portions this blocking lever being moved up and down, thereby for example push brake separating mechanism to open position.Here, the stroke that blocking lever moves up and down depends on the height of the inclined plane part of this interlocking gear.When this block piece moves to the second place, the planar portions of blocking lever is positioned at the highest point of interlocking gear inclined face.
According to a preferred version of the present utility model, on this block piece, be also provided with the groove extending along its moving direction, in this groove, be provided with boss, locking piece is suitable for being contained in this groove.This locking piece is for example hook-like part, is provided with the slotted eye along its longitudinal extension in the elongate body of this hook-like part, and this hook-like part is set on the boss that is positioned at described groove by slotted eye, thereby can in this groove, slidably reciprocate.So arrange, the space that can make locking piece occupy is less, makes the more compact structure of interlock.
According to a preferred embodiment of the present utility model, interlocking gear is operative gear, and its anglec of rotation is limited by the alignment pin of arranging this operative gear one side.It will be appreciated by those skilled in the art that this interlocking gear can be also all gear.In the situation that interlocking gear arrangement becomes to be all gear, its space taking is larger than operative gear.
Accompanying drawing explanation
Of the present utility model complete and the content that can realize comprises it being best execution mode for a person skilled in the art, in the remainder of this specification that comprises accompanying drawing reference, done more detailed elaboration, wherein:
Fig. 1 is according to the scheme of installation of the interlock of an embodiment of the present utility model and circuit breaker;
Fig. 2 is according to the decomposition view of a part for interlock of the present utility model and shift-in/moving-out device;
Fig. 3 is according to the partial view of interlock of the present utility model and shift-in/moving-out device;
Fig. 4 is the perspective schematic view according to block piece of the present utility model;
Fig. 5 is according to the perspective schematic view of locking piece of the present utility model embodiment;
Fig. 6 is according to the perspective schematic view of interlocking gear of the present utility model embodiment;
Fig. 7 is according to the perspective schematic view of blocking lever of the present utility model embodiment.
Reference numeral list
1-fixed frame; 2-breaker body; 3-block piece; 4-shift-in/moving-out device; 4a-base plate; 5-locking piece; The 6-gear of interlocking; 7-alignment pin; 8-blocking lever; 9-tooth bar; Groove on 10-block piece; 11-boss; The slotted eye of 12-locking piece; The hook portion of 13-locking piece; The inclined plane part of 14-interlocking gear; The tooth of 15-interlocking gear; The slotted eye of 16-block piece; The planar portions of 17-blocking lever; 18-back-moving spring; The track type hole at 19-blocking lever two ends; 20-brake separating mechanism; Lug boss in 21-breaker body; 22-limit spring; 23-locating part.
Embodiment
It should be understood by one skilled in the art that content as herein described is only the description to example embodiment, be not to limit scheme more widely of the present utility model.
Fig. 1 shows according to the interlock for frame-type circuit breaker of the present utility model, and this interlock is arranged between shift-in/moving-out device 4 and the brake separating mechanism 20 of breaker body 2.As shown in Figure 1, this frame-type circuit breaker comprises fixing framework 1 and breaker body 2, and breaker body is arranged in this framework movably, can shift out framework 1 by shift-in/moving-out device 4 shift-ins.This shift-in/moving-out device is provided with handle hole (not shown), only has action bars is inserted in this handle hole, could operate that breaker body 2 is shifted out to this framework to shift-in/moving-out device, and circuit breaker is safeguarded, maintains, overhauled.
Advantageously, this interlock comprises block piece 3, and it can move between primary importance and the second place.In Fig. 1-3, block piece 3 is in primary importance, and in primary importance, block piece 3 shelters from this handle hole at least partly, makes shift-in/moving-out device 4 to be operated update bar.In the second place, block piece 3 will no longer block handle hole, thereby expose handle hole to can operate by update pole pair shift-in/moving-out device 4.This block piece 3 can be made of metal, and also can be made of plastics, or any other suitable material is made.
As shown in Figure 2, this interlock also comprises actuated piece that one end engages with brake separating mechanism 20, is arranged in the transmission mechanism between block piece 3 and actuated piece and has been arranged on the locking piece 5 on block piece 3.Advantageously, block piece 3 has the slotted eye 16 extending along its moving direction, and described shift-in/moving-out device also comprises locating part 23, and it can coordinate block piece to be limited in to this second place when block piece 3 moves to the second place with slotted eye 16.Locating part 23 is for example spring pivot in this embodiment, but can be also any other suitable mechanism known in the art.
Advantageously, in the utility model, advantageously, be also provided with the back-moving spring 18 that makes block piece turn back to this primary importance from this second place, these back-moving spring 18 one end are fixed to this shift-in/moving-out device 4, the other end is fixed to block piece 3.Removing after the coordinating of locating part 23 and slotted eye 16, under the effect of back-moving spring 18, block piece can automatically return to the primary importance of covering handle hole.
In the present embodiment, as shown in Figure 2 and Figure 7, actuated piece is the blocking lever form of portrait orientation (setting), and the upper end of blocking lever engages with brake separating mechanism.As shown in Figures 2 and 3, transmission mechanism comprises the tooth bar 9 (referring to Fig. 4) being made into integration with block piece 3, be arranged on the interlocking gear 6 on the base plate 4a of shift-in/moving-out device, the top of the gear of wherein interlocking has inclined plane part 14, and this inclined plane part engages with the planar portions 17 of blocking lever 8 lower ends.The tooth of tooth bar 9 engages with the tooth 15 of interlocking gear 6, when block piece 3 moves from primary importance to the second place, tooth bar 9 drives interlocking gear 6 to rotate, the planar portions 17 of blocking lever 8 moves to most significant end from the least significant end of interlocking gear 6 inclined plane parts, thereby promote this blocking lever, move up, and then the brake separating mechanism that pushes circuit breaker turns to open position.
As shown in Figure 3 and Figure 7, the upper and lower end of blocking lever 8 is respectively equipped with 19, two holes, track type hole and coordinates and be arranged in breaker body with the lug boss 21 in breaker body 2, and can move up and down limitedly.The height of inclined plane part of blocking lever 8 distance moving up and down and interlocking gear and track type hole 19 are along the Size dependence of blocking lever moving direction, and this distance is chosen to make at block piece 3, from primary importance, when the second place moves, to be enough to by moving of blocking lever, brake separating mechanism 20 be pushed up and moves on to open position.Advantageously, in the bottom of blocking lever 8, be also provided with limit spring 22 for blocking lever is held in place to initial position.
In a preferred embodiment of the present utility model, referring to Fig. 2 and Fig. 6, interlocking gear 6 is operative gear, on the base plate of shift-in/moving-out device, the place, one end away from tooth bar 9 of this interlocking gear is provided with alignment pin 7, for the gear 6 of interlocking when block piece 3 moves to the second place, just in time turns to the tram that limited by alignment pin 7 and by locking piece 5 locks in place.It will be appreciated by those skilled in the art that, interlocking gear can be also all gear, and in this case, the space that interlocking gear occupies is a bit larger tham the space that operative gear occupies.
In an embodiment of the present utility model, block piece has the groove 10 extending along its moving direction, is provided with boss 11 (referring to Fig. 4) in groove 10.Locking piece 5 is hook-like part form (referring to Fig. 5), it has elongated main body and hook portion 13, in its main body, be provided with the slotted eye 12 along its longitudinal extension, locking piece 5 is set on boss 11 by slotted eye 12, and it is basic identical with recess width that the width design of locking piece becomes, thereby make locking piece 5 can be contained in groove and can move around along it.As required, locking piece 5 can be made of metal, and also can be made of plastics.The length of locking piece 5 becomes for example its hook portion 5b of locking piece 5 when block piece 3 moves to the second place just to engage interlocking gear 6 with the Design of length of the slotted eye on it 12, thereby by locking in place with the gear 6 of interlocking coordinating of alignment pin 7, wherein on this position, the planar portions 17 of blocking lever 8 lower ends engages with the most significant end of the inclined plane part 14 of interlocking gear 6, and blocking lever 8 is moved upwards up to and is enough to push brake separating mechanism and turns to the height of open position, thereby makes circuit breaker in gate-dividing state.
In the utility model, because locking piece 5 is contained in the groove on block piece 3, make the more compact structure of interlock, saved and taken up room.Or locking piece can be integrally formed with block piece, be also encompassed in scope of the present utility model.
In the situation that not exceeding spirit and scope of the present utility model, those of ordinary skills can make to the utility model change and the variation of these and other, and this has done more specifically and has set forth in accompanying claims.Be to be further appreciated that, the many aspects of different embodiment can completely or partially be replaced mutually.In addition, one of ordinary skill in the art will appreciate that explanation is above only exemplary, can be to the utility model Composition of contents restriction further describing in accompanying claims.
Claims (10)
1. for an interlock for frame-type circuit breaker, this frame-type circuit breaker comprises: fixing framework (1); The breaker body (2) that is arranged in this framework and can shifts out from this framework; Shift-in/moving-out device (4), it has handle hole, this handle hole is suitable for receiving action bars with by this framework of this breaker body (2) shift-in/shift out, it is characterized in that, this interlock is arranged between this shift-in/moving-out device (4) and the brake separating mechanism (20) of this breaker body (2) and comprises: the block piece (3) that can move between primary importance and the second place, and this block piece (3) blocks at least partly this handle hole and exposes this handle hole in this second place in this primary importance; The actuated piece that one end engages with this brake separating mechanism; The transmission mechanism acting between this block piece (3) and this actuated piece; With the locking piece (5) being arranged on this block piece (3), wherein when this block piece moves to this second place from this primary importance, by this transmission mechanism, this actuated piece is moved to and make the open position of this brake separating mechanism in gate-dividing state, and this locking piece (5) moves with this block piece and this actuated piece is locked in to this open position.
2. the interlock for frame-type circuit breaker according to claim 1, it is characterized in that, this block piece (3) is arranged on this shift-in/moving-out device, this transmission mechanism comprises the tooth bar (9) being arranged on this block piece (3) and the interlocking gear (6) being meshed with this tooth bar, the upper surface of this interlocking gear (6) has inclined plane part (14), this inclined plane part matches with the other end of this actuated piece, when this block piece moves to the second place from primary importance, this tooth bar (9) drives this interlocking gear (6) to rotate, and then this actuated piece is moved to this open position.
3. the interlock for frame-type circuit breaker according to claim 2, is characterized in that, this interlocking gear (6) is rotatably arranged on the base plate (4a) of this shift-in/moving-out device (4).
4. the interlock for frame-type circuit breaker according to claim 2, it is characterized in that, also comprise the back-moving spring (18) that makes this block piece (3) return to primary importance from the second place, this back-moving spring (18) one end is fixed to this shift-in/moving-out device (4) and the other end is fixed to this block piece (3).
5. the interlock for frame-type circuit breaker according to claim 2, it is characterized in that, described block piece (3) has the slotted eye (16) extending along its moving direction, described shift-in/moving-out device also comprises locating part (23), and this locating part matches that with described slotted eye (16) this block piece is limited to this second place when this block piece moves to the second place.
6. the interlock for frame-type circuit breaker according to claim 2, it is characterized in that, the blocking lever that this actuated piece (8) is portrait orientation, the upper end of this blocking lever engages with this brake separating mechanism and lower end has and is suitable for the planar portions (17) that matches with this inclined plane part (14), when this interlocking gear rotates, by this inclined plane part (14) and coordinating of this planar portions (17) this blocking lever being moved up and down.
7. the interlock for frame-type circuit breaker according to claim 6, is characterized in that, is also provided with the groove (10) extending along its moving direction on this block piece (3), and this locking piece is suitable for being contained in this groove.
8. the interlock for frame-type circuit breaker according to claim 7, it is characterized in that, this locking piece is hook-like part, in the elongate body of this hook-like part, be provided with the slotted eye (12) along its longitudinal extension, this hook-like part is set in by slotted eye (12) on the boss (11) that is positioned at described groove (10), thereby can in this groove (10), slidably reciprocate, when this block piece moves to this second place, the hook portion of this hook-like part (13) engages that with the tooth of this interlocking gear this blocking lever is locked in to this open position.
9. the interlock for frame-type circuit breaker according to claim 2, is characterized in that, described interlocking gear (6) is operative gear, and its anglec of rotation is limited by the alignment pin (7) that is arranged in this operative gear one side.
10. the interlock for frame-type circuit breaker according to claim 6, is characterized in that, the stroke that described blocking lever (8) moves up and down depends on the height of the inclined plane part (14) of this interlocking gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490643.XU CN203562346U (en) | 2013-08-12 | 2013-08-12 | Interlocking device used for frame-type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490643.XU CN203562346U (en) | 2013-08-12 | 2013-08-12 | Interlocking device used for frame-type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203562346U true CN203562346U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320490643.XU Expired - Lifetime CN203562346U (en) | 2013-08-12 | 2013-08-12 | Interlocking device used for frame-type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203562346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470036A (en) * | 2015-12-22 | 2016-04-06 | 广州白云电器设备股份有限公司 | Two-hole three-position operation mechanism for high-voltage GIS three-position switch |
-
2013
- 2013-08-12 CN CN201320490643.XU patent/CN203562346U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470036A (en) * | 2015-12-22 | 2016-04-06 | 广州白云电器设备股份有限公司 | Two-hole three-position operation mechanism for high-voltage GIS three-position switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190624 Address after: Dublin, Ireland Patentee after: Eaton Intelligent Power Co.,Ltd. Address before: Ohio, USA Patentee before: Eaton Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |