CN111508764A - Five-prevention interlocking mechanism for switch cabinet - Google Patents
Five-prevention interlocking mechanism for switch cabinet Download PDFInfo
- Publication number
- CN111508764A CN111508764A CN202010310100.XA CN202010310100A CN111508764A CN 111508764 A CN111508764 A CN 111508764A CN 202010310100 A CN202010310100 A CN 202010310100A CN 111508764 A CN111508764 A CN 111508764A
- Authority
- CN
- China
- Prior art keywords
- locking
- rotating shaft
- plate
- isolation
- grounding
- 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.)
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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
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
- H01H33/48—Interlocking mechanisms for interlocking between casing or cover and mechanism for operating contacts
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a five-prevention interlocking mechanism for a switch cabinet, wherein a connecting plate is arranged on a locking rotating shaft, the connecting plate is in linkage connection with a main shaft of a circuit breaker, a brake separating pawl is arranged at the intersection position of the locking rotating shaft and an isolation lock rod, a brake separating block is arranged on the isolation lock rod corresponding to the brake separating pawl, a driving wheel plate and an isolation lock plate are respectively arranged at two ends of the isolation lock rod, a grounding lock plate and a cam plate are respectively arranged at two ends of a locking push rod, the isolation rotating shaft and the grounding rotating shaft are respectively arranged at two sides of the locking rotating shaft in parallel, the isolation lock plate and the cam plate are sleeved on the isolation rotating shaft to coaxially rotate, the driving wheel plate and the grounding lock plate are sleeved on the grounding rotating shaft to coaxially rotate, the isolation rotating shaft is in linkage connection with an isolation knife, the grounding rotating shaft is in linkage connection with the grounding knife, a piston is arranged on the driving wheel, And carrying out an operation sequence of interconnection and interlocking by taking closing of the latching circuit breaker as a center.
Description
Technical Field
The invention relates to a five-prevention interlocking mechanism for a switch cabinet.
Background
The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a vacuum circuit breaker, an isolating switch and a grounding switch, and in order to realize five-prevention of the switch cabinet, a five-prevention interlocking mechanism needs to be arranged among the components.
The five-prevention interlocking mechanism of the existing five-prevention interlocking switch cabinet generally adopts a linkage mode to ensure that the vacuum circuit breaker can be disconnected with the disconnecting switch and the grounding switch at the same time, when the disconnecting switch is disconnected in a charged mode, the five-prevention interlocking mechanism can simultaneously disconnect the vacuum circuit breaker, the occurrence of misoperation cannot be avoided, only the result of misoperation can be reduced, and certain potential safety hazards exist; in order to ensure that the five-prevention interlocking mechanism can break the vacuum circuit breaker in time, the five-prevention interlocking mechanism is usually in linkage connection with a switching-off lock of the vacuum circuit breaker, and the five-prevention interlocking mechanism can be operated only after the circuit breaker is switched off, but in the connection mode, a circuit breaker switching-off position signal is uploaded only in a mode of an electric appliance switching point, the circuit breaker can still be switched on when a circuit breaker switching-on electric appliance control loop is switched off and other equipment in a cabinet is operated, and the circuit breaker can be switched off immediately after the circuit breaker is switched on, so that certain potential safety hazards exist in the operation process; and current five prevent interlocking mechanism dispersion at circuit breaker, isolator and earthing switch department, lead to the structure of cubical switchboard complicated, it is inconvenient to install.
Disclosure of Invention
In order to overcome the defects, the five-prevention interlocking mechanism for the switch cabinet, which is connected with the circuit breaker operating mechanism into a whole, has the advantages of high safety, compact structure, convenience in installation and the like by acquiring the opening and closing positions of the main shaft of the circuit breaker and carrying out the operation sequence of interconnection and interlocking by taking the closing of the circuit breaker as a center.
In order to achieve the above purpose, the invention adopts a five-prevention interlocking mechanism for a switch cabinet, which comprises a chassis, a door closing rotating shaft, a locking rotating shaft, an isolating locking rod and a locking push rod, wherein the door closing rotating shaft, the isolating locking rod and the locking push rod are arranged in the chassis in parallel, the locking rotating shaft, the door closing rotating shaft, the isolating locking rod and the locking push rod are arranged in the chassis in a mutually perpendicular manner, a connecting plate is arranged on the locking rotating shaft and is in linkage connection with a main shaft of a circuit breaker, a brake separating pawl is arranged at the intersection position of the locking rotating shaft and the isolating locking rod, a brake separating block is arranged on the isolating locking rod corresponding to the brake separating pawl, a driving wheel plate and an isolating locking plate are respectively arranged at two ends of the isolating locking rod, a grounding locking plate and a cam plate are respectively arranged at two ends of the locking rotating shaft, the isolating rotating shaft and the, the driving wheel plate and the grounding locking plate are sleeved on the grounding rotating shaft to coaxially rotate, the isolating rotating shaft is in linkage connection with the isolating knife, the grounding rotating shaft is in linkage connection with the grounding knife, a plurality of locking grooves matched with the isolating lock rod and the locking push rod are formed in the peripheries of the isolating locking plate and the grounding locking plate respectively, a piston is arranged on the driving wheel plate, one end of the piston is in linkage connection with a closing pawl of the circuit breaker, a reset spring for pulling the isolating lock rod to the driving wheel plate is sleeved on the isolating lock rod, and a reset spring for pulling the locking push rod to the cam plate is sleeved on the locking push rod.
The invention is further provided that the closing rotating shaft is arranged outside one end of the locking rotating shaft, the closing rotating shaft and the locking rotating shaft are meshed and linked through the bevel gear, and the closing rotating shaft is provided with the door locking plate.
The invention is further arranged that four locking grooves are arranged on the isolation locking plate and the grounding locking plate, and the four locking grooves are arranged at equal angles of 90 degrees.
The invention is further provided that the isolation rotating shaft and the grounding rotating shaft are hexagonal shafts, and the centers of the driving wheel plate, the cam plate, the isolation locking plate and the grounding locking plate correspond to the hexagonal shafts to form a hexagonal hole.
The invention is further provided that the isolating lock rod and the locking push rod are provided with abdicating grooves for the locking rotating shaft to pass through.
The invention is further provided that the brake separating block is a brake separating bearing connected with the isolating lock rod.
The invention has the advantages that the cam plate and the locking plate are arranged on the isolation rotating shaft and the grounding rotating shaft, the cam plate and the locking plate are respectively adopted at the two ends of the isolation lock rod and the locking push rod to realize pushing and locking of the rotating shaft, the cam plate and the locking plate which are coaxially arranged can be mutually restricted to realize interlocking, the structure is simple, and the operation is convenient; the locking rotating shaft transmits the state of the main shaft of the circuit breaker to the door closing rotating shaft and the isolating lock rod, so that the cabinet door and the isolating switch are locked; a driving wheel of the grounding rotating shaft is provided with a piston which is linked with a closing pawl of the circuit breaker to realize interlocking, so that the circuit breaker is prevented from being thrown in a closing state of the grounding switch.
The invention effectively prevents misoperation by acquiring the opening and closing position of the main shaft of the circuit breaker and carrying out the operation sequence of interconnection and interlocking by taking the closing of the locking circuit breaker as a center, namely the circuit breaker closing position interlocking mechanism locks the isolation switch, the operation shaft of the grounding switch and the operation wicket of the synchronous locking five-prevention interlocking mechanism in a mechanical mode, the unlocking mechanism operates the wicket when the circuit breaker is in the opening position, and synchronously locks the closing sincere of the circuit breaker, locks the rotation shaft of the isolation switch and prevents the grounding switch from closing the isolation switch when the grounding switch is operated.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
FIG. 2 is a schematic view of the isolation locking bar mating of an embodiment of the present invention.
FIG. 3 is a schematic view of the locking plunger of the present invention.
Fig. 4 is an assembled side view of an embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-4, a specific embodiment of the present invention is a five-prevention interlocking mechanism for a switch cabinet, which includes a chassis 1, a door closing rotating shaft 2, a locking rotating shaft 3, an isolation lock rod 4, a locking push rod 5, wherein the door closing rotating shaft 2, the isolation lock rod 4, and the locking push rod 5 are arranged in parallel in the chassis 1, the locking rotating shaft 3, the door closing rotating shaft 2, the isolation lock rod 4, and the locking push rod 5 are arranged in the chassis 1 perpendicularly to each other, a connecting plate 31 is arranged on the locking rotating shaft 3, the connecting plate 31 is linked with a circuit breaker main shaft 10, a brake separating pawl 32 is arranged at a position where the locking rotating shaft 3 intersects with the isolation lock rod 4, a brake separating bearing 41 is arranged on the isolation lock rod 4 corresponding to the brake separating pawl 32, a driving wheel plate 42 and an isolation locking plate 43 are respectively arranged at two ends of the isolation lock rod 4, a grounding locking plate 51 and a cam plate 52 are respectively arranged at two ends of the locking push rod 5, the isolation locking plate 43 and the cam plate 52 are sleeved on the isolation rotating shaft 6 to coaxially rotate, the driving wheel plate 42 and the grounding locking plate 51 are sleeved on the grounding rotating shaft 7 to coaxially rotate, the isolation rotating shaft 6 is in linkage connection with the isolation knife, the grounding rotating shaft 7 is in linkage connection with the grounding knife, four locking grooves 44 matched with the isolation locking rod 4 and the locking push rod 5 are respectively arranged at the peripheries of the isolation locking plate 43 and the grounding locking plate 51, the four locking grooves are arranged at equal angles of 90 degrees, a piston 8 is arranged on the driving wheel plate 42 and sleeved in a piston sleeve 81 to move up and down, one end of the piston 8 is in linkage connection with a breaker closing pawl, a reset spring 9 for pulling the isolation locking rod 4 to the driving wheel plate 42 is sleeved on the isolation locking rod 4, a reset spring for pulling the locking push rod 5 to the cam plate 52 is sleeved on the locking push rod 5, the closing rotating shaft 2 is arranged outside one end of the closing rotating shaft 3, the closing rotating shaft 2 is, a door locking plate 21 is arranged on the door closing rotating shaft 2, the door locking plate 21 is matched with a door lock to realize locking, and a yielding groove 45 for the locking rotating shaft 3 to pass through is formed on the isolation locking rod 4 and the locking push rod 5.
The isolation rotating shaft 6 and the grounding rotating shaft 7 are both hexagonal shafts, and the centers of the driving wheel plate 42, the cam plate 52, the isolation locking plate 43 and the grounding locking plate 51 correspond to the hexagonal shafts to form a hexagonal hole.
In the invention, besides the structure, the isolating locking plate and the grounding locking plate can also adopt a disk-shaped structure which can realize lateral locking, such as a gear and the like.
The above embodiments are preferred embodiments of the present invention, and in addition to the above embodiments, other obvious modifications of the present invention, such as the hexagonal shafts of the isolation shaft and the grounding shaft can be changed into any special-shaped shaft, etc., are also within the protection scope of the present invention.
Claims (6)
1. The utility model provides a five prevent interlocking mechanism for cubical switchboard which characterized in that: the five-prevention interlocking mechanism comprises a chassis, a door closing rotating shaft, a locking rotating shaft, an isolating locking rod and a locking push rod, wherein the door closing rotating shaft, the isolating locking rod and the locking push rod are arranged in the chassis in parallel, the locking rotating shaft, the door closing rotating shaft, the isolating locking rod and the locking push rod are perpendicular to each other and are arranged in the chassis, a connecting plate is arranged on the locking rotating shaft and is in linkage connection with a main shaft of the circuit breaker, a brake separating pawl is arranged at the intersection position of the locking rotating shaft and the isolating locking rod, a brake separating block is arranged on the isolating locking rod corresponding to the brake separating pawl, a driving wheel plate and an isolating locking plate are respectively arranged at two ends of the isolating locking rod, a grounding locking plate and a cam plate are respectively arranged at two ends of the locking push rod, the isolating rotating shaft and the grounding rotating shaft are respectively arranged at two sides of the locking rotating shaft in parallel, the isolating locking plate, the isolation rotating shaft is in linkage connection with the isolation knife, the grounding rotating shaft is in linkage connection with the grounding knife, a plurality of locking grooves matched with the isolation locking rod and the locking push rod are formed in the peripheries of the isolation locking plate and the grounding locking plate respectively, a piston is arranged on the driving wheel plate, one end of the piston is in linkage connection with a closing pawl of the circuit breaker, a reset spring for pulling the isolation locking rod to the driving wheel plate is sleeved on the isolation locking rod, and a reset spring for pulling the locking push rod to the cam plate is sleeved on the locking push rod.
2. The five-prevention interlock mechanism for a switchgear cabinet according to claim 1, wherein: the closing rotating shaft is arranged outside one end of the locking rotating shaft, the closing rotating shaft and the locking rotating shaft are meshed and linked through a bevel gear, and a door locking plate is arranged on the closing rotating shaft.
3. The five-prevention interlock mechanism for a switchgear cabinet according to claim 1 or 2, characterized in that: four locking grooves are formed in the isolating locking plate and the grounding locking plate, and the four locking grooves are arranged at equal angles of 90 degrees.
4. The five-prevention interlock mechanism for a switchgear cabinet according to claim 1 or 2, characterized in that: the isolation rotating shaft and the grounding rotating shaft are both hexagonal shafts, and the centers of the driving wheel plate, the cam plate, the isolation locking plate and the grounding locking plate correspond to the hexagonal shafts to form a hexagonal hole.
5. The five-prevention interlock mechanism for a switchgear cabinet according to claim 1 or 2, characterized in that: and the isolating lock rod and the locking push rod are provided with abdicating grooves for the locking rotating shaft to pass through.
6. The five-prevention interlock mechanism for a switchgear cabinet according to claim 1 or 2, characterized in that: the brake separating block is a brake separating bearing connected to the isolating lock rod.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310100.XA CN111508764A (en) | 2020-04-17 | 2020-04-17 | Five-prevention interlocking mechanism for switch cabinet |
| PCT/CN2020/116036 WO2021208355A1 (en) | 2020-04-17 | 2020-09-18 | Switch cabinet interlock mechanism for preventing five types of accidental operations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310100.XA CN111508764A (en) | 2020-04-17 | 2020-04-17 | Five-prevention interlocking mechanism for switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111508764A true CN111508764A (en) | 2020-08-07 |
Family
ID=71864136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010310100.XA Pending CN111508764A (en) | 2020-04-17 | 2020-04-17 | Five-prevention interlocking mechanism for switch cabinet |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111508764A (en) |
| WO (1) | WO2021208355A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208355A1 (en) * | 2020-04-17 | 2021-10-21 | 亨斯迈(杭州)电力技术有限公司 | Switch cabinet interlock mechanism for preventing five types of accidental operations |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114388281B (en) * | 2021-12-14 | 2024-05-10 | 北京四方继保工程技术有限公司 | Circuit breaker and grounding switch linkage mechanism for ring main unit |
| CN114420479B (en) * | 2022-01-21 | 2023-11-07 | 平高集团有限公司 | Cable chamber door interlocking structure of upper three-station ring main unit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409273B (en) * | 2014-10-29 | 2016-07-06 | 浙江道笃智能开关有限公司 | Pole type High-Voltage Electrical Appliances cubicle switch |
| CN207676822U (en) * | 2017-10-20 | 2018-07-31 | 珠海沃顿电气有限公司 | A kind of five anti-interlocking operation mechanisms of solid insulation cabinet |
| CN207966797U (en) * | 2018-04-13 | 2018-10-12 | 浙江恒控电气有限公司 | Breaker and disconnecting switch, the interlocking mechanism of earthing switch |
| CN108630483B (en) * | 2018-06-28 | 2024-03-26 | 董佃平 | Five-prevention interlocking operating mechanism of medium-high voltage switch cabinet |
| CN111613479B (en) * | 2020-04-17 | 2022-05-06 | 亨斯迈(杭州)电力技术有限公司 | Novel five-prevention locking method |
| CN211828608U (en) * | 2020-04-17 | 2020-10-30 | 亨斯迈(杭州)电力技术有限公司 | Five-prevention interlocking mechanism for switch cabinet |
| CN111508764A (en) * | 2020-04-17 | 2020-08-07 | 亨斯迈(杭州)电力技术有限公司 | Five-prevention interlocking mechanism for switch cabinet |
| CN111508765A (en) * | 2020-04-17 | 2020-08-07 | 亨斯迈(杭州)电力技术有限公司 | Five-prevention interlocking switch cabinet |
-
2020
- 2020-04-17 CN CN202010310100.XA patent/CN111508764A/en active Pending
- 2020-09-18 WO PCT/CN2020/116036 patent/WO2021208355A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208355A1 (en) * | 2020-04-17 | 2021-10-21 | 亨斯迈(杭州)电力技术有限公司 | Switch cabinet interlock mechanism for preventing five types of accidental operations |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021208355A1 (en) | 2021-10-21 |
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