CN114724888A - Novel combined switch equipment - Google Patents
Novel combined switch equipment Download PDFInfo
- Publication number
- CN114724888A CN114724888A CN202210566026.7A CN202210566026A CN114724888A CN 114724888 A CN114724888 A CN 114724888A CN 202210566026 A CN202210566026 A CN 202210566026A CN 114724888 A CN114724888 A CN 114724888A
- Authority
- CN
- China
- Prior art keywords
- mounting plate
- plate
- interlocking
- breaker
- circuit breaker
- Prior art date
- 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.)
- Pending
Links
- 238000002955 isolation Methods 0.000 claims abstract description 44
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H33/6661—Combination with other type of switch, e.g. for load break switches
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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
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
- H01H33/52—Interlocking mechanisms for interlocking two or more switches
Abstract
The invention discloses novel combined switch equipment, which comprises a breaker main body, wherein a first mounting plate, a second mounting plate and a third mounting plate are fixed in the breaker main body, the first mounting plate is arranged on one side of the third mounting plate, a breaker interlocking crank arm is rotatably arranged on one side of the first mounting plate, a breaker isolation interlocking plate is slidably arranged on the first mounting plate and the second mounting plate, a breaker closing interlocking plate is slidably arranged between the third mounting plate and the second mounting plate, a breaker closing operation locking plate is arranged on one side of the first mounting plate, an isolation operation shaft is rotatably arranged on the second mounting plate in a penetrating manner, the lower end of the breaker isolation interlocking plate stops the isolation operation shaft from rotating after the breaker isolation interlocking plate slides downwards, and a cam is fixedly sleeved on the isolation operation shaft. According to the invention, the mutual drag and coordination between the opening and closing operation of the breaker main body and the opening and closing operation of the isolating switch meet the operation regulation of the switch equipment, and the use safety is improved.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to novel combined switch equipment.
Background
The vacuum circuit breaker is named because arc extinguishing media and insulating media of a contact gap after arc extinguishing are high vacuum; the circuit breaker has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinction, is relatively popularized in power distribution networks, and can be configured in a middle cabinet, a double-layer cabinet and a fixed cabinet to be used for controlling and protecting high-voltage electrical equipment.
However, the existing vacuum circuit breaker switchgear is simple in structure, rarely meets five-prevention interlocking, and is difficult to make the mutual control cooperation between the main body opening and closing of the circuit breaker and the opening and closing of the isolating switch, especially, the isolating switch is controlled to be incapable of opening when the circuit breaker is in a closing state, the circuit breaker is controlled to be incapable of closing when the isolating switch is opened, and the existing vacuum circuit breaker is low in use safety, so that a novel combined switchgear needs to be provided.
Disclosure of Invention
The present invention is directed to a novel modular switchgear that solves the problems set forth in the background.
In order to achieve the purpose, the invention provides the following technical scheme: a novel combined switch device comprises a breaker main body, wherein a first mounting plate, a second mounting plate and a third mounting plate are fixed in the breaker main body, the first mounting plate is arranged on one side of the third mounting plate, a breaker interlocking connecting lever is rotatably arranged on one side of the first mounting plate, a breaker isolation interlocking plate is slidably arranged on the second mounting plate of the first mounting plate, the breaker isolation interlocking plate can be pressed to slide downwards after the breaker interlocking connecting lever rotates, and a breaker closing interlocking plate is slidably arranged between the third mounting plate and the second mounting plate;
the circuit breaker switching-on operation locking plate is mounted on one side of the first mounting plate, the upper end of the circuit breaker switching-on interlocking plate can support the circuit breaker switching-on operation locking plate tightly after the circuit breaker switching-on interlocking plate slides upwards, an isolation operation shaft is arranged on the second mounting plate in a penetrating and rotating mode, the lower end of the circuit breaker isolation interlocking plate blocks the isolation operation shaft to rotate after the circuit breaker isolation interlocking plate slides downwards, a cam is fixedly sleeved on the isolation operation shaft, a bending portion is arranged on one side of the circuit breaker switching-on interlocking plate, and the cam can be pressed to bend upwards after rotating to the upper portion; first mounting panel and second mounting panel one side are fixed with first uide pin, second uide pin respectively, open first spout, second spout respectively at both ends about the circuit breaker isolation interlocking board, first spout, second spout sliding connection respectively in first uide pin, second uide pin.
In a preferred embodiment of the present invention, a return spring is fixed to an upper end of the circuit breaker isolation interlocking plate, and the other end of the return spring is fixed to the first mounting plate.
As a preferred embodiment of the present invention, third sliding pins are fixed on the third mounting plate and the second mounting plate, third sliding grooves are formed on both upper and lower sides of the circuit breaker closing interlocking plate, and the third sliding grooves are slidably disposed on the third sliding pins.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the novel combined switch equipment, when the breaker main body is in a switching-on state, the breaker interlocking connecting lever extrudes the breaker isolation interlocking plate to slide downwards, so that the breaker isolation interlocking plate abuts against the isolation operation shaft and cannot rotate, the isolation switch cannot be switched off, and safety accidents caused by misoperation of the isolation switch of the switch equipment in a loaded state are prevented.
2. According to the novel combined switch device, when the disconnecting switch is switched off, the cam on the isolating operation shaft jacks the circuit breaker switching-on interlocking plate, the circuit breaker switching-on interlocking plate is jacked to slide upwards, the circuit breaker switching-on interlocking plate blocks the circuit breaker switching-on operation locking plate at the moment, so that a circuit breaker main body cannot be switched on, when the disconnecting switch is switched on, the circuit breaker main body cannot be switched on, safety accidents caused by improper operation sequence of the switch device are prevented, and the circuit breaker main body can be switched on only after the disconnecting switch is switched on.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic plan structure diagram of a breaker main body of a novel combined switch device according to the present invention in a closing state;
fig. 2 is a schematic structural plan view of a breaker main body of the novel combined switch device in an opening state;
fig. 3 is a schematic structural diagram of a disconnecting switch opening state plane of the novel combined switch device of the invention;
fig. 4 is a schematic diagram of a closing state plane structure of an isolating switch of the novel combined switch device according to the present invention;
fig. 5 is a schematic diagram of a three-dimensional structure of a circuit breaker isolation interlocking plate of the novel combined switch device;
fig. 6 is a schematic perspective view of a circuit breaker closing interlocking plate of the novel combined switch device according to the present invention;
fig. 7 is a schematic perspective view of an isolated operation shaft of a novel combination type switchgear according to the present invention.
In the figure: 1. a circuit breaker main body; 2. a first mounting plate; 3. a second mounting plate; 4. a breaker interlock lever; 5. a circuit breaker isolation interlock plate; 6. isolating the operating shaft; 7. a cam; 8. a return spring; 9. a breaker closing operation locking plate; 10. a breaker closing interlocking plate; 11. a first chute; 12. a second chute; 13. a third chute; 14. a bending part; 15. and a third mounting plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a novel combined switch device comprises a breaker main body 1, wherein a first mounting plate 2, a second mounting plate 3 and a third mounting plate 15 are fixed in the breaker main body 1, the first mounting plate 2 is arranged on one side of the third mounting plate 15, a breaker interlocking connecting lever 4 is rotatably arranged on one side of the first mounting plate 2, a breaker isolation interlocking plate 5 is slidably arranged on the first mounting plate 2 and the second mounting plate 3, the breaker interlocking connecting lever 4 can extrude the breaker isolation interlocking plate 5 to slide downwards after rotating, when the breaker main body 1 is switched on, the breaker interlocking connecting lever 4 supports against the breaker isolation interlocking plate 5, the breaker isolation interlocking plate 5 blocks an operating shaft of a disconnecting switch, the disconnecting switch cannot be switched off, and a breaker switching-on interlocking plate 10 is slidably arranged between the third mounting plate 15 and the second mounting plate 3;
a breaker closing operation locking plate 9 is installed on one side of the first installation plate 2, the upper end of the breaker closing interlocking plate 10 can abut against the breaker closing operation locking plate 9 after sliding upwards, an isolation operation shaft 6 is arranged on the second installation plate 3 in a penetrating and rotating mode, the lower end of the breaker isolation interlocking plate 5 stops the isolation operation shaft 6 from rotating after sliding downwards, a cam 7 is fixedly sleeved on the isolation operation shaft 6, a bending portion 14 is arranged on one side of the breaker closing interlocking plate 10, the cam 7 can be pressed and bent to move upwards after rotating to the upper portion, when an isolation switch is switched off, the cam 7 on the isolation operation shaft 6 abuts against the breaker closing interlocking plate 10, the breaker closing interlocking plate 10 is enabled to move upwards along the sliding groove, at the moment, the breaker closing interlocking plate 10 blocks the breaker closing operation locking plate 9, and therefore the breaker main body 1 cannot be switched on.
Referring to fig. 1 to 7, in an embodiment, a first guide pin and a second guide pin are fixed on one side of the first mounting plate 2 and one side of the second mounting plate 3, a first chute 11 and a second chute 12 are respectively formed at the upper end and the lower end of the circuit breaker isolation interlocking plate 5, the first chute 11 and the second chute 12 are respectively slidably connected to the first guide pin and the second guide pin, a return spring 8 is fixed on the upper end of the circuit breaker isolation interlocking plate 5, and the other end of the return spring 8 is fixed on the first mounting plate 2.
Referring to fig. 1 to 7, further, third sliding pins are fixed on the third mounting plate 15 and the second mounting plate 3, third sliding grooves 13 are formed on the upper and lower sides of the circuit breaker closing interlocking plate 10, and the third sliding grooves 13 are slidably disposed on the third sliding pins.
It should be noted that the present invention is a novel combined switch device, each of which is a general standard component or a component known to those skilled in the art, and the structure and principle of the combined switch device can be known to those skilled in the art through technical manuals or through routine experiments.
The working principle is as follows: when the breaker main body 1 is switched on, the breaker interlocking crank arm 4 props against the breaker isolation interlocking plate 5, so that the breaker isolation interlocking plate 5 blocks an operation shaft of the isolating switch, and the isolating switch cannot be switched off at the moment; satisfy among the five-prevention interlocking between circuit breaker main part 1 and the isolator: separate the switch and can not break off when breaker main part 1 combined floodgate state, prevent switchgear maloperation isolator and cause the incident under the loaded condition, when breaker main part 1 breaks off the floodgate, breaker interlocking connecting lever 4 release breaker isolation interlocking board 5, make breaker isolation interlocking board 5 through reset spring 8 rebound to notch bottom, thereby isolator operating axis is released and can carry out isolator's separating brake operation this moment, satisfies switchgear's operation regulation: the breaker operation just can be carried out after 1 separating brake of circuit breaker main part, when the separating brake of isolating switch, keeps apart on the operating axis 6 cam 7 withstands circuit breaker combined floodgate interlocking board 10, makes circuit breaker combined floodgate interlocking board 10 along spout upward movement, and circuit breaker combined floodgate interlocking board 10 keeps off circuit breaker combined floodgate operation jam plate 9 this moment to make circuit breaker main part 1 can not close a floodgate, satisfy among the five-prevention interlocking between circuit breaker main part 1 and the isolating switch: when the isolating switch is opened, the circuit breaker main body 1 cannot be switched on to operate, so that safety accidents caused by improper operation sequence of switch equipment are prevented, when the isolating switch is switched on, the cam 7 on the isolating operation shaft 6 releases the circuit breaker switching-on interlocking plate 10, the circuit breaker switching-on interlocking plate 10 moves downwards along the sliding groove, and at the moment, the circuit breaker switching-on interlocking plate 10 and the circuit breaker switching-on operation locking plate 9 are released, so that the circuit breaker main body 1 can be operated to switch on; satisfying the operating specifications of the switchgear: the breaker main body 1 can be switched on only after the disconnecting switch is switched on.
Claims (3)
1. A novel combined switch device is characterized in that: the circuit breaker interlocking device comprises a circuit breaker main body (1), wherein a first mounting plate (2), a second mounting plate (3) and a third mounting plate (15) are fixed in the circuit breaker main body (1), the first mounting plate (2) is arranged on one side of the third mounting plate (15), a circuit breaker interlocking connecting lever (4) is rotatably arranged on one side of the first mounting plate (2), a circuit breaker isolating interlocking plate (5) is slidably arranged on the second mounting plate (3) of the first mounting plate (2), the circuit breaker interlocking connecting lever (4) can press the circuit breaker isolating interlocking plate (5) to slide downwards after rotating, and a circuit breaker interlocking plate (10) is slidably arranged between the third mounting plate (15) and the second mounting plate (3);
a breaker closing operation locking plate (9) is mounted on one side of the first mounting plate (2), the upper end of the breaker closing interlocking plate (10) can support the breaker closing operation locking plate (9) tightly after sliding upwards, an isolation operation shaft (6) is arranged on the second mounting plate (3) in a penetrating and rotating mode, the lower end of the breaker isolation interlocking plate (5) blocks the isolation operation shaft (6) to rotate after sliding downwards, a cam (7) is fixedly sleeved on the isolation operation shaft (6), a bending portion (14) is arranged on one side of the breaker closing interlocking plate (10), and the cam (7) can extrude the bending portion (14) to move upwards after rotating to the upper portion;
first mounting panel (2) and second mounting panel (3) one side are fixed with first uide pin, second uide pin respectively, first spout (11), second spout (12) have been opened respectively at both ends about circuit breaker isolation interlocking board (5), first spout (11), second spout (12) sliding connection respectively in first uide pin, second uide pin.
2. A new modular switchgear, in accordance with claim 1, characterized in that: and a return spring (8) is fixed at the upper end of the circuit breaker isolation interlocking plate (5), and the other end of the return spring (8) is fixed on the first mounting plate (2).
3. A new modular switchgear, in accordance with claim 1, characterized in that: third sliding pins are fixed on the third mounting plate (15) and the second mounting plate (3), third sliding grooves (13) are formed in the upper side and the lower side of the circuit breaker closing interlocking plate (10), and the third sliding grooves (13) are arranged on the third sliding pins in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210566026.7A CN114724888A (en) | 2022-05-24 | 2022-05-24 | Novel combined switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210566026.7A CN114724888A (en) | 2022-05-24 | 2022-05-24 | Novel combined switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114724888A true CN114724888A (en) | 2022-07-08 |
Family
ID=82231169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210566026.7A Pending CN114724888A (en) | 2022-05-24 | 2022-05-24 | Novel combined switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114724888A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1146410A (en) * | 1997-07-28 | 1999-02-16 | Mitsubishi Electric Corp | Interlock device for electrical facility |
| CN102436950A (en) * | 2011-10-14 | 2012-05-02 | 常州市明及电气技术开发有限公司 | Interlocking mechanism of isolation switch and breaker |
| CN103578817A (en) * | 2012-08-03 | 2014-02-12 | 广东米勒电气有限公司 | Interlocking device for disconnector and circuit breaker |
| CN204315416U (en) * | 2014-12-05 | 2015-05-06 | 甘肃长城电工电器工程研究院有限公司 | Interlock is used between a kind of circuit breaker and isolating switch |
| CN210897046U (en) * | 2019-12-31 | 2020-06-30 | 广东华德力电气有限公司 | Switch sequential operation interlocking mechanism |
-
2022
- 2022-05-24 CN CN202210566026.7A patent/CN114724888A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1146410A (en) * | 1997-07-28 | 1999-02-16 | Mitsubishi Electric Corp | Interlock device for electrical facility |
| CN102436950A (en) * | 2011-10-14 | 2012-05-02 | 常州市明及电气技术开发有限公司 | Interlocking mechanism of isolation switch and breaker |
| CN103578817A (en) * | 2012-08-03 | 2014-02-12 | 广东米勒电气有限公司 | Interlocking device for disconnector and circuit breaker |
| CN204315416U (en) * | 2014-12-05 | 2015-05-06 | 甘肃长城电工电器工程研究院有限公司 | Interlock is used between a kind of circuit breaker and isolating switch |
| CN210897046U (en) * | 2019-12-31 | 2020-06-30 | 广东华德力电气有限公司 | Switch sequential operation interlocking mechanism |
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