CN215680522U - Interlocking mechanism of fixed circuit breaker - Google Patents
Interlocking mechanism of fixed circuit breaker Download PDFInfo
- Publication number
- CN215680522U CN215680522U CN202122300238.4U CN202122300238U CN215680522U CN 215680522 U CN215680522 U CN 215680522U CN 202122300238 U CN202122300238 U CN 202122300238U CN 215680522 U CN215680522 U CN 215680522U
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- circuit breaker
- vacuum circuit
- lever
- ejector pin
- push rod
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Abstract
The utility model relates to an interlocking mechanism of a fixed circuit breaker, which comprises a drive plate in linkage fit with a handle of an isolating switch, a push rod in linkage fit with the drive plate, a lever rotationally arranged in a switch cabinet, and an ejector rod movably arranged on a vacuum circuit breaker and matched with a tripping plate of the vacuum circuit breaker. The utility model has the advantages of simple structure, stable and reliable performance, convenient installation and convenient operation.
Description
Technical Field
The utility model relates to a fixed circuit breaker, in particular to an interlocking mechanism of the fixed circuit breaker.
Background
The switch cabinet is an electrical device, the external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch is arranged according to the requirement. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. In a high-voltage switch cabinet, a fixed vacuum circuit breaker is generally used together with a disconnecting switch, and in order to make the use safer, an interlocking mechanism must be arranged between the fixed vacuum circuit breaker and the disconnecting switch. The existing interlocking mechanism is complex in structural design, so that the interlocking mechanism has the defects of unreliable performance, inconvenient operation and inconvenient installation.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides the interlocking mechanism of the fixed circuit breaker, which has the advantages of simple structure, stable and reliable performance, convenience in installation and convenience in operation.
In order to achieve the purpose, the utility model adopts an interlocking mechanism of a fixed circuit breaker, which comprises a drive plate in linkage fit with a handle of an isolating switch, a push rod in linkage fit with the drive plate, a lever rotatably arranged in a switch cabinet, and an ejector rod movably arranged on the vacuum circuit breaker and matched with a tripping plate of the vacuum circuit breaker, wherein one end of the push rod is rotatably arranged at one end of the lever and forms linkage fit of the lever and the push rod, one end of the ejector rod is rotatably arranged at the other end of the lever, the other end of the ejector rod is abutted against the tripping plate of the vacuum circuit breaker, the ejector rod acts along with the lever and can be abutted against the tripping plate of the vacuum circuit breaker, and forms tripping and opening of the vacuum circuit breaker.
The beneficial effect of above-mentioned structure is: the interlocking mechanism of the fixed vacuum circuit breaker adopts a lever type structural design, the interlocking mechanism is simple in structural design and stable and reliable in performance, when the interlocking mechanism works, a handle of an isolating switch is shifted to a breaking and locking position, the handle drives a driving plate to act, the driving plate drives a push rod to act, the push rod pushes a lever to act, the lever pushes an ejector rod to act, and the ejector rod abuts against a tripping plate of the vacuum circuit breaker, so that tripping and brake separating of the vacuum circuit breaker can be realized, and the disconnecting switch can be separated; when the handle is shifted to a working position, the handle drives the drive plate to act, the drive plate drives the push rod to act, the push rod drives the lever and the ejector rod to act, and the tripping plate of the vacuum circuit breaker loses the limitation of the ejector rod, so that the vacuum circuit breaker is in an unlocked state. Therefore, the interlocking between the vacuum circuit breaker and the isolating switch is realized, and the interlocking mechanism of the fixed vacuum circuit breaker has the advantages of simple structure, stable and reliable performance, convenience and quickness in installation and convenience in operation.
Particularly, an L-shaped support is arranged on the vacuum circuit breaker corresponding to the ejector rod, one end of the L-shaped support is arranged on the vacuum circuit breaker, a guide hole is formed in the other end of the L-shaped support, and the ejector rod is inserted into the guide hole and forms sliding connection and matching of the ejector rod and the L-shaped support. The ejector rod is arranged in the guide hole of the L-shaped support in a sliding mode, and the ejector rod and the L-shaped support are assembled more conveniently, so that the assembly efficiency of the interlocking mechanism is improved.
Particularly, a driving piece matched with the tripping plate is arranged at the other end of the ejector rod, and a spherical surface abutting part abutting against the tripping plate is arranged on the driving piece. The driving piece is provided with the spherical surface abutting part, so that the spherical surface abutting part can be prevented from being blocked with the tripping plate, and the reliability of the work of the interlocking mechanism can be improved.
Drawings
Fig. 1 is a schematic structural diagram of a locked state according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an unlocked state according to an embodiment of the present invention.
Fig. 3 is an assembly view of the ejector and the vacuum circuit breaker according to the embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 3, an embodiment of the present invention is an interlock mechanism of a fixed circuit breaker, including a dial 12 cooperating with a handle 11 of a disconnecting switch 10, a push rod 13 cooperating with the dial 12, a lever 14 rotatably disposed in a switch cabinet, and a push rod 16 movably disposed on a vacuum circuit breaker 15 and cooperating with a trip plate 151 of the vacuum circuit breaker 15, wherein one end of the push rod 13 is rotatably disposed on one end of the lever 14 and constitutes a cooperating engagement between the lever 14 and the push rod 13, one end of the push rod 16 is rotatably disposed on the other end of the lever 14, the other end of the push rod 16 abuts against the trip plate 151 of the vacuum circuit breaker 15, and the push rod 16 moves along with the lever 14 and can abut against the trip plate 151 of the vacuum circuit breaker 15 and constitutes a tripping opening of the vacuum circuit breaker 15. Vacuum circuit breaker 15 on correspond ejector pin 16 department and be provided with L type support 17, L type support 17 one end set up on vacuum circuit breaker 15, L type support 17 the other end on be provided with guiding hole 171, ejector pin 16 alternate in guiding hole 171, and constitute the sliding connection cooperation of ejector pin 16 and L type support 17. The ejector rod is arranged in the guide hole of the L-shaped support in a sliding mode, and the ejector rod and the L-shaped support are assembled more conveniently, so that the assembly efficiency of the interlocking mechanism is improved.
As shown in fig. 3, the other end of the push rod 16 is provided with a driving member 18 engaged with the trip plate 151, and the driving member 18 is provided with a spherical interference portion 181 interfering with the trip plate 151. The driving piece is provided with the spherical surface abutting part, so that the spherical surface abutting part can be prevented from being blocked with the tripping plate, and the reliability of the work of the interlocking mechanism can be improved.
The interlocking mechanism of the fixed vacuum circuit breaker adopts a lever type structural design, the interlocking mechanism is simple in structural design and stable and reliable in performance, when the interlocking mechanism works, a handle of an isolating switch is shifted to a breaking and locking position, the handle drives a driving plate to act, the driving plate drives a push rod to act, the push rod pushes a lever to act, the lever pushes an ejector rod to act, and the ejector rod abuts against a tripping plate of the vacuum circuit breaker, so that tripping and brake separating of the vacuum circuit breaker can be realized, and the disconnecting switch can be separated; when the handle is shifted to a working position, the handle drives the drive plate to act, the drive plate drives the push rod to act, the push rod drives the lever and the ejector rod to act, and the tripping plate of the vacuum circuit breaker loses the limitation of the ejector rod, so that the vacuum circuit breaker is in an unlocked state. Therefore, the interlocking between the vacuum circuit breaker and the isolating switch is realized, and the interlocking mechanism of the fixed vacuum circuit breaker has the advantages of simple structure, stable and reliable performance, convenience and quickness in installation and convenience in operation.
Claims (3)
1. An interlock mechanism for a fixed circuit breaker, comprising: include with isolator's handle linkage complex driver plate, with driver plate linkage complex push rod, rotate lever, the activity setting in the cubical switchboard set up on vacuum circuit breaker and with vacuum circuit breaker's dropout board complex ejector pin, the one end of push rod rotate and set up in one of lever, and constitute the linkage cooperation of lever and push rod, the one end of ejector pin rotate and set up on the other end of lever, the other end of ejector pin is contradicted on vacuum circuit breaker's dropout board, the ejector pin along with lever action and can contradict on vacuum circuit breaker's dropout board, and constitute vacuum circuit breaker's dropout separating brake.
2. The interlock mechanism of a fixed circuit breaker of claim 1, wherein: the vacuum circuit breaker on correspond ejector pin department and be provided with L type support, the one end setting of L type support on vacuum circuit breaker, the other end of L type support on be provided with the guiding hole, the ejector pin alternate in the guiding hole, and constitute the sliding connection cooperation of ejector pin and L type support.
3. The interlock mechanism of a fixed circuit breaker according to claim 2, wherein: the other end of the ejector rod is provided with a driving piece matched with the tripping plate, and the driving piece is provided with a spherical surface abutting part abutting against the tripping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122300238.4U CN215680522U (en) | 2021-09-22 | 2021-09-22 | Interlocking mechanism of fixed circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122300238.4U CN215680522U (en) | 2021-09-22 | 2021-09-22 | Interlocking mechanism of fixed circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215680522U true CN215680522U (en) | 2022-01-28 |
Family
ID=79965509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122300238.4U Active CN215680522U (en) | 2021-09-22 | 2021-09-22 | Interlocking mechanism of fixed circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215680522U (en) |
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2021
- 2021-09-22 CN CN202122300238.4U patent/CN215680522U/en active Active
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