CN112289625A - Outer isolation knife locking device based on spring operating mechanism outdoor high-voltage circuit breaker - Google Patents
Outer isolation knife locking device based on spring operating mechanism outdoor high-voltage circuit breaker Download PDFInfo
- Publication number
- CN112289625A CN112289625A CN202011365982.6A CN202011365982A CN112289625A CN 112289625 A CN112289625 A CN 112289625A CN 202011365982 A CN202011365982 A CN 202011365982A CN 112289625 A CN112289625 A CN 112289625A
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- CN
- China
- Prior art keywords
- circuit breaker
- connecting rod
- main shaft
- micro
- voltage circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
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- Breakers (AREA)
Abstract
The invention relates to an external isolation knife locking device of an outdoor high-voltage circuit breaker based on a spring operating mechanism, which comprises a main shaft crank arm connected with an isolation knife main shaft, wherein the main shaft crank arm is connected with a transmission connecting rod, the transmission connecting rod is connected with a locking rod, a microswitch starting block is arranged on the locking rod, a microswitch is arranged below the microswitch starting block, the microswitch starting block and the microswitch are both arranged in a device box, the main shaft crank arm is connected with the transmission connecting rod through a shaft pin, and the transmission connecting rod is connected with the locking rod through a shaft pin. The invention has convenient operation, reliable use and high safety.
Description
Technical Field
The invention relates to a locking device, in particular to an external isolation knife locking device based on a spring operating mechanism.
Background
At present, the linkage between the external isolation knife of an outdoor high-voltage circuit breaker (hereinafter referred to as a circuit breaker) and the circuit breaker on the market is only one: when the circuit breaker is switched on, the external isolation knife can not be switched on and switched off, and when the circuit breaker is switched off, the external isolation knife can be switched on and switched off. The opening and closing of the isolating knife does not influence the opening and closing of the circuit breaker. If the circuit breaker is switched on by the fault of an operator in the process of network hanging operation, the circuit breaker which is not closed or is not closed in place is switched on, accidents are easy to happen.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects in the prior art and provides an external isolation knife locking device of an outdoor high-voltage circuit breaker based on a spring operating mechanism, which is convenient to operate, reliable to use and high in safety.
The technical scheme is as follows: in order to solve the technical problem, the external isolation knife locking device of the outdoor high-voltage circuit breaker based on the spring operating mechanism comprises a main shaft crank arm connected with an isolation knife main shaft, wherein the main shaft crank arm is connected with a transmission connecting rod, the transmission connecting rod is connected with a locking rod, a microswitch starting block is arranged on the locking rod, a microswitch is arranged below the microswitch starting block, the microswitch starting block and the microswitch are both arranged in a device box, the main shaft crank arm is connected with the transmission connecting rod through a shaft pin, and the transmission connecting rod is connected with the locking rod through a shaft pin.
Further, the main shaft of the isolation knife makes circular motion.
Further, the locking lever moves linearly.
Further, the locking rod is used for locking or unlocking the circuit breaker opening and closing operation handle.
Further, the microswitch starting block pushes the microswitch to enable the microswitch to shift.
Further, the transmission connecting rod comprises a connecting rod I and a connecting rod II which are connected through a screw rod.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the invention has reasonable integral structure, when the isolating knife is switched off, the main shaft of the isolating knife can do circular motion, the main shaft connecting lever is arranged on the main shaft of the isolating knife, the main shaft connecting lever is connected with the transmission connecting lever through the shaft pin, the transmission connecting lever is connected with the locking lever through the shaft pin, the circular motion of the main shaft of the isolating knife is converted into the linear motion of the locking lever, when the isolating knife is switched off, the locking lever moves towards the direction of the opening and closing operating handle of the circuit breaker so as to lock the opening and closing operating handle of the circuit breaker and achieve the aim of preventing manual switching on, when the locking lever moves, the microswitch actuating block arranged on the locking lever is utilized to push the microswitch so as to lead the microswitch to shift (an opening point switching-off point and a closing point switching-on point), a switching-on loop of the circuit breaker is connected into a normally-off point of the microswitch in series, a position signal line of the isolating knife is connected to the normally-, the normally closed point becomes the open point, and the combined floodgate return circuit disconnection of circuit breaker will unable electronic combined floodgate, and normally open point becomes the close point simultaneously, just is the position signal of isolation sword, and micro-gap switch uses airtight boat to insert with circuit breaker internal wiring to be connected, plays the effect that does not destroy circuit breaker self protection etc. and the transmission connecting rod adopts split type screw rod to connect, plays the fine setting effect, and this device convenient operation uses reliably, and the degree of safety is high.
Drawings
FIG. 1 is a state diagram of the present invention with the isolation knife in place;
FIG. 2 is a state diagram of the present invention when the isolation knife is not in place;
fig. 3 is a state diagram of the present invention when the isolation knife is opened.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, 2 and 3, the external isolation knife locking device of the outdoor high-voltage circuit breaker based on the spring operating mechanism comprises a main shaft crank arm 1 connected with an isolation knife main shaft, wherein the isolation knife main shaft does circular motion, the main shaft crank arm 1 is connected with a transmission connecting rod 2, the transmission connecting rod 2 comprises a connecting rod I7 and a connecting rod II 8 which are connected through a screw rod 9, the transmission connecting rod 2 is connected with a locking rod 3, the locking rod 3 does linear motion, the locking rod 3 is used for locking or unlocking a switch-closing operating handle of the circuit breaker, a microswitch starting block 4 is arranged on the locking rod 3, a microswitch 5 is arranged below the microswitch starting block 4, the microswitch starting block 4 pushes the microswitch 5 to displace the microswitch 5, the microswitch 4 and the microswitch 5 are both arranged in a device box 6, the main shaft crank arm 1 is connected with the transmission connecting rod 2 through a shaft pin, and the transmission connecting rod 2 is connected with the locking rod 3 through the shaft pin. The invention has reasonable integral structure, when the isolating knife is switched off, the main shaft of the isolating knife can do circular motion, the main shaft connecting lever is arranged on the main shaft of the isolating knife, the main shaft connecting lever is connected with the transmission connecting lever through the shaft pin, the transmission connecting lever is connected with the locking lever through the shaft pin, the circular motion of the main shaft of the isolating knife is converted into the linear motion of the locking lever, when the isolating knife is switched off, the locking lever moves towards the direction of the opening and closing operating handle of the circuit breaker so as to lock the opening and closing operating handle of the circuit breaker and achieve the aim of preventing manual switching on, when the locking lever moves, the microswitch actuating block arranged on the locking lever is utilized to push the microswitch so as to lead the microswitch to shift (an opening point switching-off point and a closing point switching-on point), a switching-on loop of the circuit breaker is connected into a normally-off point of the microswitch in series, a position signal line of the isolating knife is connected to the normally-, the normally closed point becomes the open point, and the combined floodgate return circuit disconnection of circuit breaker will unable electronic combined floodgate, and normally open point becomes the close point simultaneously, just is the position signal of isolation sword, and micro-gap switch uses airtight boat to insert with circuit breaker internal wiring to be connected, plays the effect that does not destroy circuit breaker self protection etc. and the transmission connecting rod adopts split type screw rod to connect, plays the fine setting effect, and this device convenient operation uses reliably, and the degree of safety is high.
The present invention provides a thought and a method, and a method and a way for implementing the technical scheme are many, the above is only a preferred embodiment of the present invention, it should be noted that, for a person skilled in the art, a plurality of improvements and modifications can be made without departing from the principle of the present invention, and the improvements and modifications should be regarded as the protection scope of the present invention, and each component not explicitly described in the embodiment can be implemented by the prior art.
Claims (6)
1. The utility model provides an outer isolation sword blocking device based on outdoor high voltage circuit breaker of spring-operated mechanism which characterized in that: it includes main shaft turning arm (1) that links to each other with the isolation sword main shaft, main shaft turning arm (1) links to each other with transmission connecting rod (2), transmission connecting rod (2) link to each other with blocking lever (3) be equipped with micro-gap switch on blocking lever (3) and start piece (4) micro-gap switch is equipped with micro-gap switch (5) below in the start piece of micro-gap switch (4), micro-gap switch starts piece (4) and micro-gap switch (5) and all establishes in device box (6), main shaft turning arm (1) passes through the pin hub connection with transmission connecting rod (2), transmission connecting rod (2) pass through the pin hub connection with blocking lever (3).
2. The outer isolation knife locking device of the spring-operated mechanism-based outdoor high-voltage circuit breaker according to claim 1, characterized in that: the main shaft of the isolation knife makes circular motion.
3. The outer isolation knife locking device of the spring-operated mechanism-based outdoor high-voltage circuit breaker according to claim 1, characterized in that: the locking rod (3) moves linearly.
4. The outer isolation knife locking device of the spring-operated mechanism-based outdoor high-voltage circuit breaker according to claim 1, characterized in that: and the locking rod (3) is used for locking or unlocking the circuit breaker opening and closing operation handle.
5. The outer isolation knife locking device of the spring-operated mechanism-based outdoor high-voltage circuit breaker according to claim 1, characterized in that: the micro-switch starting block (4) pushes the micro-switch (5) to displace the micro-switch (5).
6. The outer isolation knife locking device of the spring-operated mechanism-based outdoor high-voltage circuit breaker according to claim 1, characterized in that: the transmission connecting rod (2) comprises a connecting rod I (7) and a connecting rod II (8) which are connected through a screw rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011365982.6A CN112289625A (en) | 2020-11-29 | 2020-11-29 | Outer isolation knife locking device based on spring operating mechanism outdoor high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011365982.6A CN112289625A (en) | 2020-11-29 | 2020-11-29 | Outer isolation knife locking device based on spring operating mechanism outdoor high-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112289625A true CN112289625A (en) | 2021-01-29 |
Family
ID=74426714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011365982.6A Pending CN112289625A (en) | 2020-11-29 | 2020-11-29 | Outer isolation knife locking device based on spring operating mechanism outdoor high-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112289625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334500A (en) * | 2022-02-07 | 2022-04-12 | 水木源华电气有限公司 | Electrified locking anti-misoperation device for isolation knife |
-
2020
- 2020-11-29 CN CN202011365982.6A patent/CN112289625A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334500A (en) * | 2022-02-07 | 2022-04-12 | 水木源华电气有限公司 | Electrified locking anti-misoperation device for isolation knife |
| CN114334500B (en) * | 2022-02-07 | 2024-06-04 | 水木源华电气有限公司 | Isolation knife electrified locking misoperation-preventing device |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 214200 building 57, No. 489, Lvyuan Road, Xinjie street, Yixing City, Wuxi City, Jiangsu Province Applicant after: Jiangsu Mige Electric Group Co.,Ltd. Address before: 214200 building 57, No. 489, Lvyuan Road, Xinjie street, Yixing City, Wuxi City, Jiangsu Province Applicant before: MIGO ELECTRIC JIANGSU CO.,LTD. |
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| CB02 | Change of applicant information |