CN201562604U - Case circuit breaker interlocking mechanism - Google Patents
Case circuit breaker interlocking mechanism Download PDFInfo
- Publication number
- CN201562604U CN201562604U CN2009202632068U CN200920263206U CN201562604U CN 201562604 U CN201562604 U CN 201562604U CN 2009202632068 U CN2009202632068 U CN 2009202632068U CN 200920263206 U CN200920263206 U CN 200920263206U CN 201562604 U CN201562604 U CN 201562604U
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- shell type
- plate
- jam plate
- movable jam
- type breaker
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Abstract
A case circuit breaker interlocking mechanism comprises two case circuit breakers mounted abreast, a support plate fixedly mounted on the front sides of the two case circuit breakers, and an operation window formed on the support plate, wherein the transverse distances between the center of the operation window and two case circuit breaker operation handles are equal to each other; a moving lock plate is mounted on the rear side of the support plate; a shift sheet integrally connected with the moving lock plate is arranged in the center position in the transverse direction; the shift sheet extends forwards out of the operation window of the support plate; the lateral projection of each operation handle in the close position intersects with that of the moving lock plate; the projection of each operation handle in the open position is staggered with that of the moving lock plate; and the transverse width d of the moving lock plate, the transverse width c of the operation window and the transverse distance j between the two operation handles meet the following relation expression: j/2<d/2<j/2+c/2. The case circuit breaker interlocking mechanism has the advantages of simple structure, convenient operation, and high reliability, and can ensure only one circuit breaker in the close position in any case.
Description
Technical field
The utility model belongs to the technical field of low-voltage distribution apparatus, is specifically related to a kind of shell type breaker interlocking device.
Background technology
Shell type breaker is the important component part of low-voltage distribution apparatus, is used for the control and the protection of incoming power or load power source.For guarantee distribution system can long-time continuous power supply, usually the two-way incoming power must be set, but at one time, the two-way incoming power can only adopt wherein one the tunnel, can not move simultaneously, to guarantee system safety.Therefore, be respectively applied between two shell type breakers controlling the two-way incoming power reliable interlock connection must be arranged, make two shell type breakers in any case at any time, can only carry out closing operation, avoid the power supply of closing a floodgate simultaneously of two circuit breakers one of them.But in the prior art, there is the problem of complex structure, poor reliability, complex operation in this class interlocking device.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned shortcoming and a kind of shell type breaker interlocking device is provided, and it is simple in structure, easy to operate, and good reliability can under any circumstance guarantee to have only a breaker closing.
Its purpose can realize by following scheme: this shell type breaker interlocking device comprises two shell type breakers that are installed together side by side, every shell type breaker is provided with the operating grip that can pull up and down, its main feature is, be installed with supporting plate two shell type breaker fronts, supporting plate offers action pane, and the center of action pane equates with lateral separation between the two shell type breaker operating grips; But a movable jam plate is installed to supporting plate back move left and right, and the horizontal centre position of movable jam plate is connected with plectrum, and plectrum stretches out the action pane of supporting plate forward; Projected position is seen from the side, and every operating grip intersects in the side projection of closing position and the side projection of movable jam plate, and every operating grip staggers in the side projection of separating brake position and the side projection of movable jam plate; And the horizontal spacing j three of the transverse width d of movable jam plate, the transverse width c of action pane, two operating grips meets following geometrical relationship: j/2＜d/2＜j/2+c/2.
Be preferably, in the middle of plectrum, be provided with lockhole; Be installed with outstanding forward locking plate respectively at the edge of the action pane left and right sides, also be provided with lockhole in the middle of the locking plate.
Be more preferably, the back of supporting plate is equipped with fixed head, and the edge thickness up and down of fixed head is greater than the thickness of middle part, and fixed head and supporting plate clamping one form cross track, but described movable jam plate move left and right be installed in the cross track.
The utlity model has following advantage and effect:
1, can guarantee about two circuit breakers operating grip can not be in closing position simultaneously.When wherein an operating grip was in closing position, another root operating grip must be in the separating brake position, and was blocked and can not pull up and down by movable jam plate.
2, when wherein an operating grip was in the separating brake position, another root operating grip can be pulled up and down, i.e. can close a floodgate (realization have only one road power supply power supply) or separating brake (being that two-way is all stopped power supply) of another root operating grip.
3, simple in structure, reliability is high, and easy to operate (being transformed to the easy to operate of another breaker closing by breaker closing wherein).
Description of drawings
Fig. 1 is that a kind of specific embodiment of the utility model is at left breaker open operation and the structural representation under the right breaker closing state.
Fig. 2 is that the side projection of the left control handle under the state shown in Figure 1 and the side projection position of movable jam plate concern schematic diagram.
Fig. 3 is the side projection position view of the right control handle under the state shown in Figure 1.
Fig. 4 be the utility model specific embodiment at left breaker closing and the structural representation under the right breaker open operation state.
Fig. 5 is that the side projection of the right control handle under the state shown in Figure 4 and the side projection position of movable jam plate concern schematic diagram.
Fig. 6 is the side projection position view of the left control handle under the state shown in Figure 4.
Fig. 7 is that the main apparent place of supporting plate, fixed head, action pane, movable jam plate concerns schematic diagram.
Fig. 8 is an A-A cross-sectional view among Fig. 7.
Fig. 9 is a B-B section structure for amplifying schematic diagram among Fig. 7.
Figure 10 is that separating brake position three's the side projection position of closing position, the operating grip of movable jam plate, operating grip concerns schematic diagram.
Figure 11 is that the lateral attitude of each parts when movable jam plate is in the middle position concerns schematic diagram.
Figure 12 is that the projected position of facing that right operating grip is pulled behind closing position concerns schematic diagram.
Figure 13 is that the projected position of facing that left operating grip is pulled behind closing position concerns schematic diagram.
Figure 14 is that movable jam plate is moved to the left the position of contact behind the left operating grip and concerns schematic diagram.
Embodiment
Fig. 1, shell type breaker interlocking device shown in Figure 4 comprises the left shell type breaker 1 that is installed together side by side, right shell type breaker 2, left side shell type breaker is provided with the left operating grip 11 that can pull up and down, right shell type breaker is provided with the right operating grip 21 that can pull up and down, be installed with supporting plate 3 two shell type breaker fronts, offer action pane 7 in the middle of the supporting plate 3, the center O of action pane 7 and two breaker operator handles 11, lateral separation between 21 equates (at Figure 12, among Figure 13, lateral separation between the center O of action pane and the left breaker operator handle 11 is j/2, and the lateral separation between the center O of action pane and the right breaker operator handle 21 also is j/2); Fig. 2, Fig. 7, Fig. 8, shown in Figure 9, the back of supporting plate 3 is equipped with fixed head 5, the edge thickness up and down of fixed head 5 is greater than the thickness of middle part, after fixed head 5 and supporting plate 3 clampings, form a cross track 6 between the two, but a movable jam plate 4 is installed to move left and right in the cross track 6, and movable jam plate 4 is connected with plectrum 41 in horizontal centre position, and plectrum 41 stretches out the action pane 7 of supporting plate forward; Shown in Figure 10, projected position is seen from the side, side projection when every operating grip is upwards pulled closing position is 51, the side projection of these side projection 51 positions and movable jam plate 4 intersects, and the side projection of every operating grip in the separating brake position is 52, the side projection of these side projection 52 positions and movable jam plate 4 staggers, as shown in figure 10; And the horizontal spacing j three of the transverse width d of movable jam plate 4, the transverse width c of action pane 7, two operating grips meets following geometrical relationship: j/2+c/2＞d/2＞j/2, as Figure 11, Figure 12, Figure 13, shown in Figure 14.
Fig. 8, shown in Figure 9 is provided with lockhole 42 in the middle of plectrum 41; Be fixed with outstanding forward locking plate 31 respectively at the edge of the action pane left and right sides, locking plate 31 is connected as a single entity with supporting plate 3, also is provided with lockhole 32 in the middle of the locking plate 31.
The foregoing description operation principle and operating process as follows:
In state shown in Figure 1, movable jam plate 4 is pushed the position of high order end, and plectrum 41 is pressed close to the locking plate 31 of action pane 7 left side edge.At this moment, the lateral attitude relation of each parts as shown in figure 12, plectrum 41 is d/2 with the lateral separation of movable jam plate left end point, plectrum 41 is j/2-c/2 with the lateral separation of left operating grip, because d/2＞j/2, so d/2＞j/2-c/2, mean that the left end of movable jam plate 4 extend into the scope of activities of left operating grip 11, blocked the movable route that left operating grip 11 is pulled up and down, left operating grip 11 can not carry out closing operation, can only be limited at the separating brake position, left side shell type breaker 1 can only be in gate-dividing state, as shown in Figure 2; On the other hand, this moment, plectrum 41 was d/2 with the lateral separation of movable jam plate right endpoint, and the lateral separation of plectrum 41 and right operating grip 21 is c/2+j/2, because c/2+j/2＞d/2, so the right-hand member of movable jam plate 4 does not extend into the scope of activities that right operating grip 21 is pulled up and down, movable jam plate 4 can not stop the operation that right operating grip 21 is pulled up and down, and the right shell type breaker 2 can carry out breaking-closing operating, as Figure 12, shown in Figure 3.
In like manner, pushed the position of low order end when movable jam plate 4, situation and Fig. 1, opposite states shown in Figure 12, as Fig. 4, shown in Figure 13, promptly mean the scope of activities that extend into right operating grip 21 of movable jam plate 4 right-hand members, blocked the movable route that right operating grip 21 is pulled up and down, right operating grip can not carry out closing operation, can only be limited at the separating brake position, right shell type breaker 2 can only be in gate-dividing state, as 13, shown in Figure 5; And the left end of movable jam plate 4 does not extend into the scope of activities that left operating grip 11 is pulled up and down, and movable jam plate 4 can not stop the operation that left operating grip 11 is pulled up and down, and left shell type breaker 1 can carry out breaking-closing operating, as Figure 13, shown in Figure 6.
No matter under any circumstance, because d/2＞j/2, be the horizontal spacing j of the transverse width d of movable jam plate greater than two operating grips, add that two operating grips intersect in the side projection of closing position and the side projection of movable jam plate, so in any case, can guarantee that two operating grips can not be pulled simultaneously closing position (if two operating grips can all be in closing position simultaneously, the transverse width that then means movable jam plate is less than the distance between two operating grips, this is unpractical, thereby is impossible).For example, be at left shell type breaker and close a floodgate and right shell type breaker is under the state of separating brake, movable jam plate 4 is stirred left, also movable jam plate 4 can not be pushed the residing position of Fig. 1 even misoperation takes place; The result of movable jam plate misoperation left, can only make movable jam plate 4 left end points move the lateral attitude of the left operating grip of contact at most, as shown in figure 14, at this moment, because the transverse width d of movable jam plate is greater than the horizontal spacing j of two operating grips, so the right-hand member of movable jam plate 4 also can extend in the track scope that right operating grip 21 pulls up and down, can guarantee that right operating grip 21 can not upwards pull.Therefore, as long as left shell type breaker 1 closes a floodgate, no matter where movable jam plate 4 is in, right shell type breaker 2 all can not close a floodgate.
If the circuit breaker of wanting conversion to close a floodgate, as long as the operating grip of two circuit breakers is all pulled the separating brake position downwards, state toggles it to the other end with movable jam plate 4 then as shown in figure 11, the circuit breaker that closes a floodgate can be changed to another from one.
Certainly, behind one of them breaker closing, can also utilize tapered end to pass lockhole plectrum 41 and locking plate 31 are locked together, thereby with the locking position of movable jam plate 4.
In the utility model, the horizontal spacing of two operating grips is meant the distance between the right-hand member of the left end of right operating grip 21 and left operating grip 11, as shown in figure 11.
Claims (3)
1. shell type breaker interlocking device, comprise two shell type breakers that are installed together side by side, every shell type breaker is provided with the operating grip that can pull up and down, it is characterized in that: be installed with supporting plate two shell type breaker fronts, supporting plate offers action pane, and the center of action pane equates with lateral separation between the two shell type breaker operating grips; But a movable jam plate is installed to supporting plate back move left and right, and the horizontal centre position of movable jam plate is connected with plectrum, and plectrum stretches out the action pane of supporting plate forward; Projected position is seen from the side, and every operating grip intersects in the side projection of closing position and the side projection of movable jam plate, and every operating grip staggers in the side projection of separating brake position and the side projection of movable jam plate; Transverse width d, the transverse width c of action pane of movable jam plate, the horizontal spacing j three of two operating grips meet following geometrical relationship: j/2＜d/2＜j/2+c/2.
2. shell type breaker according to claim 1 interlocking device is characterized in that: be provided with lockhole in the middle of plectrum; Be installed with outstanding forward locking plate respectively at the edge of the action pane left and right sides, also be provided with lockhole in the middle of the locking plate.
3. shell type breaker according to claim 1 and 2 interlocking device, it is characterized in that: the back of supporting plate is equipped with fixed head, the edge thickness up and down of fixed head is greater than the thickness of middle part, fixed head and supporting plate clamping one forms cross track, but described movable jam plate move left and right be installed in the cross track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202632068U CN201562604U (en) | 2009-11-21 | 2009-11-21 | Case circuit breaker interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202632068U CN201562604U (en) | 2009-11-21 | 2009-11-21 | Case circuit breaker interlocking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562604U true CN201562604U (en) | 2010-08-25 |
Family
ID=42627756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202632068U Expired - Fee Related CN201562604U (en) | 2009-11-21 | 2009-11-21 | Case circuit breaker interlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562604U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347154A (en) * | 2011-09-29 | 2012-02-08 | 广东高新兴通信股份有限公司 | Microswitch mechanical interlocking mechanism |
| CN102496527A (en) * | 2011-12-26 | 2012-06-13 | 安徽鑫龙电器股份有限公司 | High-capacity circuit breaker |
| CN105207094A (en) * | 2015-10-20 | 2015-12-30 | 上海华欣民福电气科技有限公司 | Maintenance bypass switch lock device for EPS emergency power supply |
-
2009
- 2009-11-21 CN CN2009202632068U patent/CN201562604U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347154A (en) * | 2011-09-29 | 2012-02-08 | 广东高新兴通信股份有限公司 | Microswitch mechanical interlocking mechanism |
| CN102496527A (en) * | 2011-12-26 | 2012-06-13 | 安徽鑫龙电器股份有限公司 | High-capacity circuit breaker |
| CN102496527B (en) * | 2011-12-26 | 2015-01-28 | 安徽鑫龙电器股份有限公司 | High-capacity circuit breaker |
| CN105207094A (en) * | 2015-10-20 | 2015-12-30 | 上海华欣民福电气科技有限公司 | Maintenance bypass switch lock device for EPS emergency power supply |
| CN105207094B (en) * | 2015-10-20 | 2017-07-07 | 上海华欣民福电气科技有限公司 | A kind of EPS emergency power supplies maintenance bypass switch locker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20121121 |