CN113161172B - Interlocking mechanism for breaker operating mechanism - Google Patents
Interlocking mechanism for breaker operating mechanism Download PDFInfo
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- CN113161172B CN113161172B CN202110500761.3A CN202110500761A CN113161172B CN 113161172 B CN113161172 B CN 113161172B CN 202110500761 A CN202110500761 A CN 202110500761A CN 113161172 B CN113161172 B CN 113161172B
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- Prior art keywords
- grounding
- isolation
- indication board
- circuit breaker
- opening
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- Breakers (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention relates to an interlocking mechanism for a breaker operating mechanism, which comprises a breaker operating shaft, a breaking button and a closing button, wherein a breaker indication board is arranged on the breaker operating shaft; the grounding operation shaft is provided with a grounding indication board; the isolation operation shaft is provided with an isolation indication board; and a door interlock mechanism for locking a door of the circuit breaker switch cabinet; when the circuit breaker indication board rotates to the circuit breaker closing position and the grounding indication board rotates to the grounding closing position, the cabinet door can be opened. According to the interlocking mechanism disclosed by the invention, only when the circuit breaker indication board rotates to the circuit breaker closing position and the grounding indication board rotates to the grounding closing position, the movable frame in the door interlocking mechanism can normally drive the lock rod to move upwards, so that the cabinet door is unlocked, and the safety is improved.
Description
Technical Field
The invention relates to the field of power equipment, in particular to an interlocking mechanism for a breaker operating mechanism.
Background
For the three-station disconnecting switch, a matched breaker operating mechanism is needed to control and operate the three-station disconnecting switch, and the three-station disconnecting switch can refer to the prior patent application of the applicant, and the patent name is as follows: three-station isolating switch and working method thereof, patent application number: 202010630716.5;
in the three-station isolating switch, an upper input shaft rotates to drive an isolating movable contact seat to move forwards and backwards, and an input bus and a first output bus are connected in a guiding way so as to realize the switching-on and switching-off of a circuit breaker;
the lower input shaft rotates to drive the grounding rod to move back and forth, so that the grounding rod is connected with the first output bus in a guiding way to realize grounding switching-on and switching-off;
the main shaft rotates to drive the breaker mechanism to work and drive the insulation pull rod to move back and forth so as to realize separation and separation of the isolating switch;
when installing three station isolator in the box cabinet and carrying out the in-service use, in order to ensure electrician's the security of opening cabinet door maintenance, only satisfy the state that the circuit breaker closed, ground connection closed simultaneously, can open the cabinet door, do not satisfy one of them, the cabinet door is opened and all can have the potential safety hazard, because, box body dress cable awl and cable can not open at random, only ensure absolute security can.
Therefore, in order to improve the safety of the breaker operating mechanism in the process of being matched with the cabinet door, a set of interlocking mechanism is needed to be designed to improve the safety, so that the cabinet door can be unlocked and opened only under the condition of safety.
Disclosure of Invention
The invention aims to solve the technical problems that: overcomes the defects of the prior art, provides an interlocking mechanism for a breaker operating mechanism, solves the problems of the prior breaker operating mechanism
The technical scheme adopted for solving the technical problems is as follows:
there is provided an interlock mechanism for a circuit breaker operating mechanism, comprising
The circuit breaker comprises a circuit breaker operating shaft, a switching-off button and a switching-on button, wherein a circuit breaker indication board is arranged on the circuit breaker operating shaft, the switching-off button is pressed to drive the circuit breaker indication board to rotate to a switching-off position of the circuit breaker, and the switching-on button is pressed to drive the circuit breaker indication board to rotate to a switching-on position of the circuit breaker;
the grounding control device comprises a grounding control shaft, a grounding control device and a grounding control device, wherein the grounding control shaft is provided with a grounding indication board which rotates back and forth between a grounding opening position and a grounding closing position;
the isolation operation shaft is provided with an isolation indication board which rotates back and forth between an isolation opening position and an isolation closing position; and
the door interlocking mechanism is used for locking a cabinet door of the breaker switch cabinet; when the circuit breaker indication board rotates to the circuit breaker closing position and the grounding indication board rotates to the grounding closing position, the cabinet door can be opened.
Further, the door interlock mechanism includes
The movable frame moves up and down on the fixed frame;
the lock rod is fixedly arranged on the movable frame, moves downwards to lock the cabinet door, and moves upwards to unlock the cabinet door;
the first limiting rod is fixedly arranged on the movable frame and is suitable for being abutted with a breaker indication board positioned at a breaker opening position so as to limit the movable frame to move upwards; and
the second limiting rod is fixedly arranged on the movable frame and is suitable for being abutted with the grounding indication board at the grounding brake separating position so as to limit the movable frame to move upwards.
Further, a flange part is arranged on the movable frame, and a first brake separating baffle opening is arranged on the brake separating button;
when the movable frame moves upwards to unlock the cabinet door, the flange part of the movable frame is inserted into the first opening stop opening of the opening button to limit the opening button seat to be pressed.
Further, the isolation indication board comprises an isolation limiting groove and an isolation limiting rod;
the grounding indication board comprises a grounding limit table and a grounding limit rod;
when the grounding indication board rotates to the grounding opening position and the isolation indication board rotates to the isolation closing position, the isolation limiting rod of the isolation indication board abuts against the grounding limiting table of the grounding indication board to limit the rotation of the grounding indication board towards the grounding closing position;
when the isolation indication board rotates to the isolation opening position, the grounding indication board rotates to the grounding closing position, and the grounding limiting rod of the grounding indication board is abutted to the isolation limiting groove of the isolation indication board so as to limit the rotation of the isolation indication board towards the isolation closing position.
Further, the end part of the grounding operation shaft is provided with a grounding operation hole for inserting a manual operation handle;
the grounding indication board is rotatably provided with a baffle plate for shielding a grounding operation hole, and the grounding limiting table is positioned on the baffle plate;
when the grounding indication board rotates to the grounding opening position, the isolation limiting rod of the isolation indication board is abutted to rotate so as to shield the grounding operation hole.
Further, the first limiting rod is a spring, and the spring is contracted to be columnar in a normal state.
Further, the interlocking mechanism further comprises a locking plate, the locking plate moves up and down, and the upper end of the locking plate is connected with a spring;
the lock plate is provided with a first perforation for the ground operation handle to pass through and a second perforation for the isolation operation handle to pass through, and the lower end of the lock plate is provided with a first clamping part for clamping the brake release button and a second clamping part for clamping the brake release button;
the switch-off button is provided with a second switch-off blocking opening matched with the first clamping part of the lock plate, and the switch-on button is provided with a first switch-on blocking opening matched with the second clamping part of the lock plate;
the lock plate is pulled to the upper end by a spring in a normal state, and is suitable for shielding a grounding operation hole for grounding operation and an isolation operation hole for isolating an operation shaft.
When the locking plate moves to the lower end, the first clamping part of the locking plate is inserted into the second opening blocking opening of the opening button, and the first clamping part of the locking plate is inserted into the first closing blocking opening of the closing button and is suitable for limiting the opening button and the closing button to operate.
Further, an isolating operation hole for inserting a manual operation handle is formed in the end part of the isolating operation shaft;
when the grounding limiting rod of the grounding indication board is abutted against the isolation limiting groove of the isolation indication board, the grounding limiting rod shields the isolation operation hole.
The beneficial effects of the invention are as follows:
according to the interlocking mechanism disclosed by the invention, only when the circuit breaker indication board rotates to the circuit breaker closing position and the grounding indication board rotates to the grounding closing position, the movable frame in the door interlocking mechanism can normally drive the lock rod to move upwards, so that the cabinet door is unlocked, and the safety is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a state diagram of an interlock mechanism of the present invention in a breaker open position, a ground close position, and an isolation open position;
FIG. 2 is a state diagram of the interlock mechanism of the present invention in a breaker closing position, a ground closing position, and an isolation opening position;
FIG. 3 is a state diagram of the interlock mechanism of the present invention in the breaker open position, the ground open position, and the isolation open position;
FIG. 4 is a state diagram of the interlock mechanism of the present invention in the breaker closing position, the ground opening position, and the isolation closing position;
FIG. 5 is a state diagram of the interlock mechanism of the present invention in the breaker open position, the ground open position, and the isolation close position;
FIG. 6 is a schematic view of a door interlock mechanism;
FIG. 7 is a schematic view of a lock plate;
wherein, the liquid crystal display device comprises a liquid crystal display device,
2. door interlocking mechanism, 21, fixing frame, 22, movable frame, 221, flange, 23, a lock rod, 24, a first limit rod, 25 and a second limit rod;
3. a breaker operating shaft 31, a breaker indicator, 32 and an abutting bolt;
4. the grounding operation shaft 41, the grounding indication board 42, the grounding limit rod 43, the abutting boss 44, the baffle orifice plate 441 and the grounding limit table;
5. an isolation operation shaft 51, an isolation indication board 52, an isolation limiting rod 53 and an isolation limiting groove;
61. the opening button 611, the first opening blocking port 612, the second opening blocking port 62, the closing button 621 and the first closing blocking port;
7. a lock plate 71, a first through hole 72, a second through hole 73, a first clamping part 74 and a second clamping part;
Detailed Description
The invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic views illustrating the basic structure of the present invention by way of illustration only, and thus show only the constitution related to the present invention.
As shown in fig. 1 to 7, an interlocking mechanism for a circuit breaker operating mechanism includes
The circuit breaker comprises a circuit breaker operation shaft 3, a switching-off button 61 and a switching-on button 62, wherein the circuit breaker operation shaft 3 is provided with a circuit breaker indication board 31, the switching-off button 61 is pressed to drive the circuit breaker indication board 31 to rotate to a circuit breaker switching-off position, and the switching-on button 62 is pressed to drive the circuit breaker indication board 31 to rotate to a circuit breaker switching-on position;
the grounding control device comprises a grounding control shaft 4, wherein a grounding indication board 41 is arranged on the grounding control shaft 4, and the grounding indication board 41 rotates back and forth between a grounding opening position and a grounding closing position;
the isolating operation shaft 5 is provided with an isolating indication board 51, and the isolating indication board 51 rotates reciprocally between an isolating opening position and an isolating closing position; and
a door interlocking mechanism 2 for locking a cabinet door of the breaker switch cabinet; when the circuit breaker indicator 31 rotates to the circuit breaker closing position and the grounding indicator 41 rotates to the grounding closing position, the cabinet door can be opened.
Specifically, as an alternative implementation of the present embodiment, as shown in fig. 6, the door interlock mechanism 2 includes
A fixed frame 21 and a movable frame 22, wherein the movable frame 22 moves up and down on the fixed frame 21;
the lock rod 23 is fixedly arranged on the movable frame 22, the lock rod 23 moves downwards to lock the cabinet door, and the lock rod 23 moves upwards to unlock the cabinet door;
the first limiting rod 24 is fixedly arranged on the movable frame 22 and is suitable for being abutted with the breaker indication board 31 at the breaking position of the breaker so as to limit the movable frame 22 to move upwards; and
the second limiting rod 25 is fixedly arranged on the movable frame 22 and is suitable for being abutted against the grounding indication board 41 at the grounding brake-separating position so as to limit the movable frame 22 to move upwards.
Specifically, in this embodiment, the circuit breaker indicator 31 is provided with the abutment bolt 32, and the circuit breaker indicator 31 is matched with the first limiting rod 24 through the abutment bolt 32;
the grounding indicator 41 is provided with an abutment boss 43, and the grounding indicator 41 is engaged with the second stopper rod 25 through the abutment boss 43.
Specifically, as an alternative implementation manner in this embodiment, the movable frame 22 is provided with a flange 221, and the opening button 61 is provided with a first opening stop 611;
when the movable frame 22 moves up to unlock the cabinet door, the flange 221 of the movable frame 22 is inserted into the first opening stop 611 of the opening button 61 to limit the opening button 61 to be pressed.
Specifically, as an alternative implementation manner in this embodiment, the isolation indicator 51 includes an isolation limiting groove 53 and an isolation limiting rod 52;
the grounding indication board 41 comprises a grounding limit table 441 and a grounding limit rod 42;
as shown in fig. 4, when the grounding indicator 41 is turned to the grounding opening position and the isolating indicator 51 is turned to the isolating closing position, the isolating limit rod 52 of the isolating indicator 51 abuts against the grounding limit table 441 of the grounding indicator 41 to limit the grounding indicator 41 to rotate toward the grounding closing position;
as shown in fig. 2, when the isolation indicator 51 rotates to the isolation switch-off position, the ground indicator 41 rotates to the ground switch-on position, and the ground stop lever 42 of the ground indicator 41 abuts against the isolation stop groove 53 of the isolation indicator 51 to limit the rotation of the isolation indicator 51 toward the isolation switch-on position.
Specifically, in this embodiment, an end portion of the isolation operation shaft 5 is provided with an isolation operation hole for inserting a manual operation handle; when the grounding limit rod 42 of the grounding indication board 41 abuts against the isolation limit groove of the isolation indication board 51, the grounding limit rod 42 shields the isolation operation hole, and the grounding limit rod 42 limits the operation handle to be inserted into the isolation operation shaft.
Specifically, as an alternative implementation manner in this embodiment, a grounding operation hole for inserting a manual operation handle is formed at the end of the grounding operation shaft 4;
a baffle plate 44 for shielding the grounding operation hole is rotatably arranged on the grounding indication board 41, and the grounding limiting table 441 is positioned on the baffle plate 44;
as shown in fig. 3 and 4, when the ground engaging indication board 41 is turned to the ground engaging opening position, the blocking hole plate 44 is rotated by the isolating limit lever 52 of the isolating indication board 51 to block the ground engaging operation hole.
Specifically, in this embodiment, a tension spring is disposed between the orifice plate 44 and the ground indication board 41, when the ground indication board 41 is in the ground closing position, the orifice plate 44 is pulled by the tension spring, the ground operation hole is opened, and only when the ground indication board 41 is turned to the ground opening position, and the isolation indication board 51 is turned to the isolation closing position, the ground operation hole needs to be blocked for improving safety, and manual operation cannot be performed.
Specifically, as an alternative implementation manner in this embodiment, the first limiting rod 24 is a spring, and the spring is contracted to be columnar in a normal state.
The first stop lever 24 adopts the spring, mainly in order to prevent to be given by the butt bolt 32 of circuit breaker sign 31 and bump off, the mechanism can appear a kind of condition in the assembly process, just first stop lever 24 is in the state of shifting up, then circuit breaker sign 31 is suddenly from circuit breaker closing to circuit breaker separating brake position, butt bolt 32 strikes first stop lever 24 from the side, if first stop lever 24 adopts the hard pole, then first stop lever 24 can be bumped off, now adopts the spring, the side is by butt bolt 32 side impact also not the incident, the spring itself can be done side direction crooked, just can resume to be vertical form after the first stop lever 24 moves down, then normal use can.
Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 7, the interlocking mechanism further includes a lock plate 7, where the lock plate 7 moves up and down, and the upper end of the lock plate 7 is connected with a spring;
the lock plate 7 is provided with a first through hole 71 for passing through the grounding operation handle and a second through hole 72 for passing through the isolation operation handle, and the lower end of the lock plate 7 is provided with a first clamping part 73 for clamping the brake separating button 61 and a second clamping part 74 for clamping the brake separating button 62;
the opening button 61 is provided with a second opening blocking opening 612 for being matched with the first clamping part 73 of the locking plate 7, and the closing button 62 is provided with a first closing blocking opening 621 for being matched with the second clamping part 74 of the locking plate 7;
as shown in fig. 4, the lock plate 7 is normally pulled to the upper end by a spring, and is adapted to shield the ground operation hole of the ground operation and the isolation operation hole of the isolation operation shaft 5.
As shown in fig. 2 and 3 and 5, when the lock plate 7 moves to the lower end, the first locking portion 73 of the lock plate 7 is inserted into the second opening stop 612 of the opening button 61, and the first locking portion 73 of the lock plate 7 is inserted into the first closing stop 621 of the closing button 62, so as to be suitable for limiting the operations of the opening button 61 and the closing button 62.
Specifically, in this embodiment, the interlocking mechanism of the present invention is installed in a box, and a circuit breaker mechanism is installed in the box, that is, an upper driving mechanism, a lower driving mechanism, and a circuit breaker operating mechanism in the patent application mentioned in the background art.
The front end of the box body is provided with a face frame, the interlocking mechanism is arranged on the face frame, the fixing frame 21 of the door interlocking mechanism 2 is fixedly arranged on the face frame, the upper face frame of the lock plate 7 moves up and down, the opening button 61 and the closing button 62 are arranged on the face frame, the buttons comprise a button cover and a movable shaft, the button cover is in elastic fit with the face frame, the button cover is pressed Niu Gaishi, the button cover moves to drive the movable shaft to move, and then the opening or closing work output is controlled through the movement of the movable shaft.
The box sets up on the cabinet body, sets up cable cone and cable in the cabinet body, and cabinet body front end sets up the cabinet door, interlocking device's locking lever 23 comes with cabinet door closure.
The isolating operation shaft 5 in the interlocking mechanism of the present invention corresponds to the upper input shaft in the prior patent application (patent application number 202010630716.5), the grounding operation shaft 4 corresponds to the lower input shaft of the prior patent application, and the circuit breaker operation shaft 3 corresponds to the main shaft in the prior patent application.
When the cabinet door is closed, the lock rod 23 falls down to lock the cabinet door, at this time, the movable frame 22 is in the downward-moving position, and the flange 221 of the movable frame 22 is separated from the first opening stop 611 of the opening button 61, at this time, the opening button 61 can be pressed.
Breaker operating shaft 3, grounding operating shaft 4, isolating operating shaft 5
When the cabinet door needs to be opened, if the cabinet door is in the state of fig. 1, namely, the breaker operating shaft 3 is in the breaker opening position, the grounding operating shaft 4 is in the grounding closing position, and the isolation operating shaft 5 is in the isolation opening position, the abutting bolt 32 can limit the first limiting rod 24 to move upwards, so that the lock rod 23 cannot move upwards, and the cabinet door cannot be opened.
If in the state of fig. 2, the breaker operating shaft 3 is in the breaker closing position, the grounding operating shaft 4 is in the grounding closing position, and the isolation operating shaft 5 is in the isolation opening position, the abutting bolt 32 has been rotated to avoid the release, at this time, the first limiting rod 24 can move upwards, and the abutting boss 43 of the grounding indication board 41 does not limit the second limiting rod 25 to move upwards, so that the locking rod 23 can move upwards under the condition that both the first limiting rod 24 and the second limiting rod 25 are not blocked, and the cabinet door can be opened; meanwhile, the grounding limiting rod 42 of the grounding indication board 41 is abutted in the isolation limiting groove 53 of the isolation indication board 51, so that the isolation indication board 51 is always in an isolation brake-separating position.
If the circuit breaker is in the state of fig. 3, the circuit breaker operating shaft 3 is in the circuit breaker opening position, the grounding operating shaft 4 is in the grounding opening position, and the isolation operating shaft 5 is in the isolation opening position, the abutting bolt 32 limits the upward movement of the first limiting rod 24, and the abutting boss 43 limits the upward movement of the second limiting rod 25, so that the lock rod 23 cannot move upward, and the cabinet door cannot be opened.
If the circuit breaker is in the state of fig. 4, the circuit breaker operating shaft 3 is in the circuit breaker closing position, the grounding operating shaft 4 is in the grounding opening position, and the isolation operating shaft 5 is in the isolation closing position, the abutting boss 43 restricts the second limiting rod 25 from moving upwards, so that the lock rod 23 cannot move upwards, and the cabinet door cannot be opened.
If the circuit breaker is in the state of fig. 5, the circuit breaker operating shaft 3 is in the circuit breaker opening position, the grounding operating shaft 4 is in the grounding opening position, and the isolation operating shaft 5 is in the isolation closing position, the abutting bolt 32 limits the upward movement of the first limiting rod 24, and the abutting boss 43 limits the upward movement of the second limiting rod 25, so that the lock rod 23 cannot move upward, and the cabinet door cannot be opened.
Therefore, in summary, according to the interlocking mechanism disclosed by the invention, the locking rod 23 can be moved upwards to unlock the cabinet door only when the circuit breaker operating shaft 3 is in the circuit breaker closing position and the grounding operating shaft 4 is in the grounding closing position, so that the safety of the circuit breaker operating mechanism is improved.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (6)
1. An interlocking mechanism for a circuit breaker operating mechanism, comprising
The circuit breaker comprises a circuit breaker operating shaft, a switching-off button and a switching-on button, wherein a circuit breaker indication board is arranged on the circuit breaker operating shaft, the switching-off button is pressed to drive the circuit breaker indication board to rotate to a switching-off position of the circuit breaker, and the switching-on button is pressed to drive the circuit breaker indication board to rotate to a switching-on position of the circuit breaker;
the grounding control device comprises a grounding control shaft, a grounding control device and a grounding control device, wherein the grounding control shaft is provided with a grounding indication board which rotates back and forth between a grounding opening position and a grounding closing position;
the isolation operation shaft is provided with an isolation indication board which rotates back and forth between an isolation opening position and an isolation closing position; and
the door interlocking mechanism is used for locking a cabinet door of the breaker switch cabinet; when the circuit breaker indication board rotates to the circuit breaker closing position and the grounding indication board rotates to the grounding closing position, the cabinet door can be opened;
the door interlock mechanism comprises
The movable frame moves up and down on the fixed frame;
the lock rod is fixedly arranged on the movable frame, moves downwards to lock the cabinet door, and moves upwards to unlock the cabinet door;
the first limiting rod is fixedly arranged on the movable frame and is suitable for being abutted with a breaker indication board positioned at a breaker opening position so as to limit the movable frame to move upwards; and
the second limiting rod is fixedly arranged on the movable frame and is suitable for being abutted with the grounding indication board at the grounding brake separating position so as to limit the movable frame to move upwards;
the first limiting rod is a spring, and the spring is contracted to be columnar in a normal state.
2. The interlocking mechanism for a circuit breaker operating mechanism according to claim 1, wherein,
the movable frame is provided with a flange part, and the opening button is provided with a first opening stop opening;
when the movable frame moves upwards to unlock the cabinet door, the flange part of the movable frame is inserted into the first opening stop opening of the opening button to limit the opening button seat to be pressed.
3. The interlocking mechanism for a circuit breaker operating mechanism according to claim 1, wherein,
the isolation indication board comprises an isolation limit groove and an isolation limit rod;
the grounding indication board comprises a grounding limit table and a grounding limit rod;
when the grounding indication board rotates to the grounding opening position and the isolation indication board rotates to the isolation closing position, the isolation limiting rod of the isolation indication board abuts against the grounding limiting table of the grounding indication board to limit the rotation of the grounding indication board towards the grounding closing position;
when the isolation indication board rotates to the isolation opening position, the grounding indication board rotates to the grounding closing position, and the grounding limiting rod of the grounding indication board is abutted to the isolation limiting groove of the isolation indication board so as to limit the rotation of the isolation indication board towards the isolation closing position.
4. The interlocking mechanism for a circuit breaker operating mechanism according to claim 3, wherein,
the end part of the grounding operation shaft is provided with a grounding operation hole for inserting a manual operation handle;
the grounding indication board is rotatably provided with a baffle plate for shielding a grounding operation hole, and the grounding limiting table is positioned on the baffle plate;
when the grounding indication board rotates to the grounding opening position, the isolation limiting rod of the isolation indication board is abutted to rotate so as to shield the grounding operation hole.
5. The interlocking mechanism for a circuit breaker operating mechanism according to claim 1, wherein,
the interlocking mechanism further comprises a locking plate, the locking plate moves up and down, and the upper end of the locking plate is connected with a spring;
the lock plate is provided with a first perforation for the ground operation handle to pass through and a second perforation for the isolation operation handle to pass through, and the lower end of the lock plate is provided with a first clamping part for clamping the brake release button and a second clamping part for clamping the brake release button;
the switch-off button is provided with a second switch-off blocking opening matched with the first clamping part of the lock plate, and the switch-on button is provided with a first switch-on blocking opening matched with the second clamping part of the lock plate;
the lock plate is pulled to the upper end by a spring in a normal state, and is suitable for shielding a grounding operation hole for grounding operation and an isolation operation hole for isolating an operation shaft;
when the locking plate moves to the lower end, the first clamping part of the locking plate is inserted into the second opening blocking opening of the opening button, and the first clamping part of the locking plate is inserted into the first closing blocking opening of the closing button and is suitable for limiting the opening button and the closing button to operate.
6. The interlocking mechanism for a circuit breaker operating mechanism according to claim 4, wherein,
an isolating operation hole for inserting a manual operation handle is formed in the end part of the isolating operation shaft;
when the grounding limiting rod of the grounding indication board is abutted against the isolation limiting groove of the isolation indication board, the grounding limiting rod shields the isolation operation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110500761.3A CN113161172B (en) | 2021-05-08 | 2021-05-08 | Interlocking mechanism for breaker operating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110500761.3A CN113161172B (en) | 2021-05-08 | 2021-05-08 | Interlocking mechanism for breaker operating mechanism |
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| CN113161172A CN113161172A (en) | 2021-07-23 |
| CN113161172B true CN113161172B (en) | 2023-09-22 |
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| CN202110500761.3A Active CN113161172B (en) | 2021-05-08 | 2021-05-08 | Interlocking mechanism for breaker operating mechanism |
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| CN109411262A (en) * | 2017-08-16 | 2019-03-01 | 天津平高智能电气有限公司 | Switchgear |
| CN107564747A (en) * | 2017-09-29 | 2018-01-09 | 国家电网公司 | Solid insulation cabinet interlock and its method of work |
| CN207967619U (en) * | 2017-12-08 | 2018-10-12 | 珠海康晋电气股份有限公司 | A kind of modular switching device cabinet door interlock |
| CN108257804A (en) * | 2018-03-12 | 2018-07-06 | 川开电气有限公司 | A kind of novel looped network cabinet interlock |
| CN110211826A (en) * | 2019-04-26 | 2019-09-06 | 新机电器有限公司 | Interlocking mechanism in on-load switch |
| CN112700994A (en) * | 2019-10-23 | 2021-04-23 | 北京合纵科技股份有限公司 | Five-prevention mechanical interlocking structure of upper isolating switch cabinet |
| CN110993401A (en) * | 2019-12-11 | 2020-04-10 | 江苏宏达电气有限公司 | Interlocking device of high-voltage switch equipment |
| CN112614714A (en) * | 2021-01-06 | 2021-04-06 | 珠海康晋电气股份有限公司 | Operating device for solid insulated switch and solid insulated switch |
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