CN217641042U - Circuit breaker and three-station switch interlocking mechanism - Google Patents
Circuit breaker and three-station switch interlocking mechanism Download PDFInfo
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- CN217641042U CN217641042U CN202221699275.5U CN202221699275U CN217641042U CN 217641042 U CN217641042 U CN 217641042U CN 202221699275 U CN202221699275 U CN 202221699275U CN 217641042 U CN217641042 U CN 217641042U
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Abstract
The utility model discloses a circuit breaker, three station switch interlocking device, including circuit breaker combined floodgate interlock, three station ground connection interlocks, transmission, lock and cabinet door, circuit breaker combined floodgate interlock is connected with three station ground connection interlocks, three station ground connection interlocks are connected with transmission, the lock is fixed at transmission's end, and the lock is installed on cabinet door, three station ground connection interlocks include the driving plate, the front end at transmission is fixed to the driving plate, is fixed with ground rail on the other end of driving plate, ground rail fixes on the cabinet body, the utility model discloses a set up circuit breaker interlock, three station ground connection interlocks to connect both and realize mechanical interlocking, just can open the switch cabinet door and carry out relevant inspection or operation to the internal portion of cabinet when guaranteeing that the mechanism moves safe position, improved the security and the reliability of cubical switchboard combined floodgate.
Description
Technical Field
The utility model relates to an electrical switch technical field specifically is a circuit breaker, three station switch interlocking device.
Background
The circuit breaker and the three-position switch mechanism are core components of the switch cabinet and are electrical equipment for realizing connection and disconnection of circuits. The breaker has two states of closing and opening; the three stations comprise a connecting station, an isolating station and a grounding station. In the operation process of the switch cabinet, in order to prevent misoperation and ensure the personal safety of operators, besides the electrical interlocking, related mechanical interlocking needs to be designed between the mechanism and between the mechanism and the cabinet body, so that the switch cabinet door can be opened to carry out related inspection or operation on the interior of the cabinet body when the mechanism acts to a safe position.
The circuit breaker and the three-position switch mechanism are generally operated manually or electrically, so that the misoperation is prevented, the personal safety of workers is ensured, the mistaken entering of a live interval is prevented, and before the workers open a cabinet door to overhaul and maintain the switch equipment, a series of grounding protection operations of 'circuit breaker opening (power-off arc extinguishing)' -three-position grounding (grounding protection) '-circuit breaker closing (circuit residual electricity removal)' need to be carried out on the switch cabinet, so that the interlocking between the mechanism and the cabinet body is indispensable.
In the interlocking of the existing cabinet body, an electrical interlocking is usually added on a cabinet door, such as a travel switch and an electromagnet, but when the electrical interlocking fails and cannot work, the electrical interlocking needs to be maintained, and at the moment, the cabinet door can be opened only under the condition that the switch cabinet is in a ground protection state by means of mechanical interlocking.
The utility model relates to an interlocking device for circuit breaker, three-station switch operating device and cabinet body door can avoid the emergence of above-mentioned condition effectively, and it is applicable to the interlocking of operating device and cabinet body door, has improved the security and the reliability of cubical switchboard.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a circuit breaker, three station switch interlocking device connect through mechanical interlocking between the mechanism, just can open the cubical switchboard cabinet door and carry out relevant inspection or operation to the internal portion of cabinet when guaranteeing the mechanism action to the safe position, improve the security.
The utility model provides a following technical scheme: a circuit breaker and three-station switch interlocking mechanism comprises a circuit breaker closing interlocking device, a three-station grounding interlocking device, a transmission device, a door lock and a cabinet door, wherein the circuit breaker closing interlocking device is connected with the three-station grounding interlocking device, the three-station grounding interlocking device is connected with the transmission device, the door lock is fixed at the tail end of the transmission device, and the door lock is installed on the cabinet door;
the circuit breaker switching-on interlocking device comprises a switching-on guide rail, a positioning screw is fixed on the switching-on guide rail, the switching-on guide rail can slide on a cabinet body through the positioning screw, a switching-on tension spring is fixed between the switching-on guide rail and the cabinet body, a switching-on connecting lever is installed at the upper end of the switching-on guide rail, a roller is fixed on the switching-on connecting lever, and the roller is located at the upper end of the switching-on guide rail;
the three-station grounding interlocking device comprises a transmission plate, wherein the transmission plate is fixed at the front end of the transmission device, a grounding guide rail is hinged to the other end of the transmission plate, the grounding guide rail is fixed on the cabinet body and can slide on the cabinet body, a grounding tension spring is fixed between the upper end of the grounding guide rail and the cabinet body, a release is connected to the upper end of the grounding guide rail on the other side of the grounding tension spring through a shaft, the other end of the release is connected with a connecting sheet, the other end of the connecting sheet is connected with a grounding crank arm, and the release can be rotatably inserted into the lower end of the circuit breaker closing interlocking device, so that the circuit breaker closing interlocking device can drive the three-station switch interlocking mechanism to move;
the transmission device comprises a transmission crank arm and a transmission shaft, one end of the transmission crank arm is fixed on the transmission shaft, the other end of the transmission crank arm is hinged to the transmission plate, and a limiting block is fixed at the other end of the transmission shaft;
the shaping has the lock notch on the lock, is located the lock notch mouth when the limiting plate, can restrict opening of cabinet body door.
According to the technical scheme, the lower end of the closing guide rail is provided with a connecting hole, the upper end of the trip is formed with a boss, and the boss can be inserted into the connecting hole.
According to the technical scheme, the transmission shaft is further sleeved with the fixed support, and the fixed support is installed on the cabinet body.
According to the technical scheme, the grounding guide rail is an L-shaped plate, a guide plate is formed on one side of the grounding guide rail, the lower end of the guide plate is hinged with the transmission plate, the lower end of the transmission plate is hinged with the transmission crank arm, the other end of the transmission crank arm is fixed on the transmission shaft, and the transmission crank arm can rotate by taking the transmission shaft as the center of a circle.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model discloses an interlocking between circuit breaker combined floodgate interlock and the three-station ground connection interlock, the combined floodgate that utilizes the circuit breaker makes three-station ground connection interlock be in ground position, has guaranteed through the physical machinery interlocking that the staff can not get into the cubical switchboard under the electrified state in, has improved the security and the reliability of cubical switchboard.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of the locking state of the breaker opening, three-station isolation and cabinet body interlocking mechanism of the utility model;
fig. 2 is a schematic diagram of the locking state of the breaker opening, three-station grounding and cabinet body interlocking mechanism of the utility model;
fig. 3 is a schematic diagram of the state of circuit breaker closing, three-station grounding and cabinet body interlocking mechanism unlocking of the utility model;
fig. 4 is a schematic view of the connection structure of the grounding guide rail and the transmission shaft of the present invention;
in the figure: 1. a circuit breaker closing interlock; 11. a switching-on crank arm; 12. a roller; 13. closing a gate on the guide rail; 14. closing a tension spring; 15. positioning a screw rod; 2. a three-station grounding interlocking device; 21. a grounding crank arm; 22. connecting sheets; 23. tripping; 24. a ground rail; 241. a guide plate; 25. a grounding tension spring; 26. a drive plate; 3. a transmission device; 31. a transmission crank arm; 32. a drive shaft; 33. fixing a bracket; 34. a limiting block; 4. a door lock; 41. a door lock slot; 5. a cabinet body door.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Examples
Referring to fig. 1 to 3, the present invention provides a technical solution: a circuit breaker and three-station switch interlocking mechanism comprises a circuit breaker closing interlocking device 1, a three-station grounding interlocking device 2, a transmission device 3, a door lock 4 and a cabinet door 5, wherein the circuit breaker closing interlocking device 1 is connected with the three-station grounding interlocking device 2, the three-station grounding interlocking device 2 is connected with the transmission device 3, the door lock 4 is fixed at the tail end of the transmission device 3, and the door lock 4 is installed on the cabinet door 5;
the circuit breaker closing interlocking device 1 comprises a closing guide rail 13, a positioning screw 15 is fixed on the closing guide rail 13, the closing guide rail 13 can slide on a cabinet body through the positioning screw 15, a closing tension spring 14 is fixed between the closing guide rail 13 and the cabinet body, a closing connecting lever 11 is installed at the upper end of the closing guide rail 13, a roller 12 is fixed on the closing connecting lever 11, the roller 12 is located at the upper end of the closing guide rail 13, when an operator closes the circuit breaker, the closing connecting lever 11 can instantly rotate by a certain angle, and the roller 12 on the closing connecting lever can impact the closing guide rail 13 to move downwards and extrude the closing tension spring 14;
the three-station grounding interlocking device 2 comprises a transmission plate 26, the transmission plate 26 is fixed at the front end of the transmission device 3, a grounding guide rail 24 is hinged to the other end of the transmission plate 26, the grounding guide rail 24 is fixed on the cabinet body and can slide on the cabinet body, a grounding tension spring 25 is fixed between the upper end of the grounding guide rail 24 and the cabinet body, a tripping device 23 is connected to the upper end of the grounding guide rail 24 and positioned on the other side of the grounding tension spring 25 through a shaft, the other end of the tripping device 23 is connected with a connecting sheet 22, a grounding connecting lever 21 is connected to the other end of the connecting sheet 22, the tripping device 23 can be rotatably inserted into the lower end of the circuit breaker closing interlocking device 1, so that the circuit breaker closing interlocking device 1 can drive the three-station switch interlocking mechanism to move, when an operator performs grounding operation on the three-station switch, the grounding connecting sheet 21 can rotate by a certain angle, the connecting sheet 22 drives the tripping device 23 to rotate on the movement track, so that the tripping device 23 is connected to the closing guide rail 13, and the closing guide rail 13 is connected with the grounding guide rail 24 into a whole;
the transmission device 3 comprises a transmission crank arm 31 and a transmission shaft 32, one end of the transmission crank arm 31 is fixed on the transmission shaft 32, the other end of the transmission crank arm 31 is hinged to the transmission plate 26, a limiting block 34 is fixed on the other end of the transmission shaft 32, and when the transmission plate 26 rotates, the transmission crank arm 31 can drive the transmission shaft 32 to rotate, so that the limiting block 34 rotates, and the door lock 4 is not in a locked state any more;
the last shaping of lock 4 has a lock notch 41, and when stopper 34 was located 4 notches 41 of lock, can restrict opening of cabinet body door 5, when stopper 34 was located lock notch 41, lock 4 was in the lock state of dying, and when stopper 34 was not located lock notch 41, lock 4 was in the unblock state, can open cabinet body door 5.
The lower end of the closing guide rail 13 is provided with a connecting hole, a boss is formed at the upper end of the release 23 and can be inserted into the connecting hole, and the boss on the release 23 is rotatably inserted into the connecting hole of the closing guide rail 13 through the rotation of the release 23, so that the closing guide rail 13 is connected with the release 23, the closing guide rail 13 is connected with the grounding guide rail 24, and the grounding action is completed.
The transmission shaft 32 is further sleeved with a fixed support 33, the fixed support 33 is installed on the cabinet body, and the transmission shaft 32 is fixed on the cabinet body through the fixed support 33, so that the transmission shaft 32 can only rotate in the fixed support 33.
As shown in fig. 4, the ground rail 24 is an L-shaped plate, a guide plate 241 is formed on one side of the ground rail 24, the lower end of the guide plate 241 is hinged to the transmission plate 26, the lower end of the transmission plate 26 is hinged to the transmission connecting lever 31, the other end of the transmission connecting lever 31 is fixed to the transmission shaft 32, the transmission connecting lever 31 can rotate around the transmission shaft 32, the rotation of the transmission shaft 32 and the up-and-down movement of the ground rail 24 can be interlocked due to the L-shaped plate, so that the up-and-down sliding of the ground rail 24 can drive the transmission shaft 32 to rotate, the rotation of the limit block 34 is realized, and the installation direction of the transmission shaft 32 and the orientation of the cabinet door 5 are the same due to the L-shaped plate.
And (3) state diagram:
as shown in fig. 1, the circuit breaker closing interlocking device 1 is in an opening state, the three-station grounding interlocking device 2 is in an isolation position, the closing guide rail does not act, the release 23 is not connected with the closing guide rail 13 and the grounding guide rail 24, the transmission plate 26 does not act, the transmission device 3 does not act, the limit block 34 on the transmission device is clamped in the door lock notch 41 at the moment, the opening of the cabinet door 5 is limited, and the interlocking is in a locking state;
as shown in fig. 2, the circuit breaker closing interlocking device 1 is in an opening state, when an operator performs a grounding operation on a three-position switch, the grounding crank arm 21 rotates by a certain angle, the connecting piece 22 drives the release 23 to rotate on a motion trail thereof, so that a boss on the release 23 is clamped in a connecting hole of the closing guide rail 13, the closing guide rail 13 and the grounding guide rail 24 are connected into a whole, at this time, the closing guide rail 13 does not move, the grounding guide rail 24 does not move, the transmission plate 26 does not move, the transmission device 3 does not move, at this time, the limiting block 34 on the transmission device is clamped in the door lock notch 41, the opening of the cabinet door 5 is limited, and the interlocking is in a locking state;
as shown in fig. 3, the three-station grounding interlocking device 2 is in a grounding position, when an operator closes the circuit breaker, the closing connecting lever 11 instantaneously rotates by a certain angle, the roller 12 on the closing connecting lever impacts the closing guide rail 13 to move, the grounding guide rail 24 moves along with the releasing guide rail under the connection of the release 23, meanwhile, the transmission plate 26 drives the transmission connecting lever 31 to rotate around the axis of the transmission shaft 32, the limit block 34 on the transmission device rotates out of the door lock notch 41 at the moment, the door lock 4 on the cabinet door 5 is not limited by the limit block 34 and is interlocked in an unlocking state, and therefore the cabinet door 5 can be opened;
when the cabinet body needs to be interlocked, only an operator needs to carry out switching-off operation on the circuit breaker, the switching-on connecting lever 11 can instantly return to the original state without applying work to the switching-on guide rail 13, the switching-on guide rail 13 and the grounding guide rail 24 return to the original positions under the action of the switching-on tension spring 14 and the switching-off tension spring 25, meanwhile, the transmission shaft 32 is driven to rotate to the original state, the limiting block 34 is clamped into the door lock notch 41, and the interlocking function is recovered. The three-position grounding device can also be operated to the isolation state at this time, so that the release 23 returns to the state shown in fig. 1, and the interlocking function is not influenced at this time.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a circuit breaker, three station switch interlocking device which characterized in that: the intelligent cabinet door interlocking device comprises a circuit breaker closing interlocking device, a three-station grounding interlocking device, a transmission device, a door lock and a cabinet door, wherein the circuit breaker closing interlocking device is connected with the three-station grounding interlocking device, the three-station grounding interlocking device is connected with the transmission device, the door lock is fixed at the tail end of the transmission device, and the door lock is installed on the cabinet door;
the circuit breaker switching-on interlocking device comprises a switching-on guide rail, a positioning screw is fixed on the switching-on guide rail, the switching-on guide rail can slide on a cabinet body through the positioning screw, a switching-on tension spring is fixed between the switching-on guide rail and the cabinet body, a switching-on connecting lever is installed at the upper end of the switching-on guide rail, a roller is fixed on the switching-on connecting lever, and the roller is located at the upper end of the switching-on guide rail;
the three-station grounding interlocking device comprises a transmission plate, wherein the transmission plate is fixed at the front end of the transmission device, a grounding guide rail is hinged to the other end of the transmission plate, the grounding guide rail is fixed on the cabinet body and can slide on the cabinet body, a grounding tension spring is fixed between the upper end of the grounding guide rail and the cabinet body, a release is connected to the upper end of the grounding guide rail on the other side of the grounding tension spring through a shaft, the other end of the release is connected with a connecting sheet, the other end of the connecting sheet is connected with a grounding crank arm, and the release can be rotatably inserted into the lower end of the circuit breaker closing interlocking device, so that the circuit breaker closing interlocking device can drive the three-station switch interlocking mechanism to move;
the transmission device comprises a transmission crank arm and a transmission shaft, one end of the transmission crank arm is fixed on the transmission shaft, the other end of the transmission crank arm is hinged to the transmission plate, and a limiting block is fixed at the other end of the transmission shaft;
the shaping has the lock notch on the lock, is located the lock notch mouth when the limiting plate, can restrict opening of cabinet body door.
2. The circuit breaker, three-position switch interlocking mechanism of claim 1, wherein: the lower end of the closing guide rail is provided with a connecting hole, and the upper end of the trip is formed with a boss which can be inserted into the connecting hole.
3. The circuit breaker, three-position switch interlocking mechanism of claim 1, wherein: the transmission shaft is further sleeved with a fixed support, and the fixed support is installed on the cabinet body.
4. A circuit breaker, three position switch interlock mechanism as recited in claim 1, wherein: the ground guide rail is an L-shaped plate, a guide plate is formed on one side of the ground guide rail, the lower end of the guide plate is hinged with the transmission plate, the lower end of the transmission plate is hinged with the transmission crank arm, the other end of the transmission crank arm is fixed on the transmission shaft, and the transmission crank arm can rotate by taking the transmission shaft as the circle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221699275.5U CN217641042U (en) | 2022-06-27 | 2022-06-27 | Circuit breaker and three-station switch interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221699275.5U CN217641042U (en) | 2022-06-27 | 2022-06-27 | Circuit breaker and three-station switch interlocking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217641042U true CN217641042U (en) | 2022-10-21 |
Family
ID=83630117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221699275.5U Active CN217641042U (en) | 2022-06-27 | 2022-06-27 | Circuit breaker and three-station switch interlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217641042U (en) |
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2022
- 2022-06-27 CN CN202221699275.5U patent/CN217641042U/en active Active
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