CN201829402U - Single-post vertical fracture telescopic outdoor high-voltage alternating current isolating switch - Google Patents
Single-post vertical fracture telescopic outdoor high-voltage alternating current isolating switch Download PDFInfo
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- CN201829402U CN201829402U CN201020571271XU CN201020571271U CN201829402U CN 201829402 U CN201829402 U CN 201829402U CN 201020571271X U CN201020571271X U CN 201020571271XU CN 201020571271 U CN201020571271 U CN 201020571271U CN 201829402 U CN201829402 U CN 201829402U
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- oil seal
- hole
- isolating switch
- alternating current
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Abstract
The utility model relates to a single-post vertical fracture telescopic outdoor high-voltage alternating current isolating switch, comprising three single poles, a main switch operation device and an earthing switch operation device, wherein each single pole is in a single-post type structure and comprises an insulating support post, a lower conductive tube, a contact seat, a moving contact and the like; the contact seat is sleeved on the outer side of the upper part of an upper conductive tube and welded with the conductive tube; a lug boss with a through hole is arranged at the upper part of the contact seat; a mandril inside the upper conductive tube extends out of the through hole of the lug boss of the contact seat and then is connected with the moving contact; a framework oil seal is arranged between the through hole of the lug boss of the contact seat and the mandril; and an oil seal cover is arranged above the framework oil seal. The utility model has the characteristics of simple and reasonable structure, favorable waterproof effects and the like.
Description
Technical field
The utility model relates to the isolating switch in a kind of 252kV electric power system, the telescopic outdoor high-voltage alternating current isolating switch of the vertical fracture of specifically a kind of single-column.
Background technology
Along with China's rapid development of economy, infrastructure construction is advanced by leaps and bounds especially, operational reliability to the various high-voltage electrical equipments of electric power system is had higher requirement, wherein anticorrosive property is an important indicator weighing the outdoor high-voltage alternating current isolating switch performance, because outer high-voltage alternating current isolating switch is exposed in the atmospheric environment fully, bearing the erosion of rainwater, salt fog, wind and snow, its operational environment is the most abominable, and sleet is the most serious to the corrosion of isolating switch in the natural phenomena, and the waterproof that how to perform equipment is the technical problem that mainly solves.The vertical fracture isolating switch of present 252kV single-column, because of its fixed contact is suspended on the bus, during combined floodgate, the main switch cutter is that contact tube and moving contact form form straight up, owing to the deficiency that partly exists at the main switch cutter in the design, waterproof effect is poor, rainwater is main easily to infiltrate from the top of main switch cutter, promptly mainly mill mouthful, infiltrate between contact base and the push rod from the moving contact chuck, cause water to enter contact tube inside and cause erosion, thereby influence the useful life of isolating switch and the reliability of divide-shut brake equipment.
Summary of the invention
In order to overcome above-mentioned defective, it is a kind of simple and reasonable for structure that the utility model provides, the telescopic outdoor high-voltage alternating current isolating switch of the vertical fracture of the single-column of good water-proof effect.
The technical solution adopted in the utility model is: the telescopic outdoor high-voltage alternating current isolating switch of the vertical fracture of a kind of single-column, comprise three one poles, operator powder operation device and ground cutter powder operation device, each one pole is the open side type structure, each one pole comprises insulation column, rotating insulated son, last contact tube, following contact tube, contact base and moving contact, described contact base is placed in the upper outside of contact tube and is welded to connect with last contact tube, the top of contact base is provided with the boss of band through hole, the push rod of last contact tube inside stretches out the back and is connected with moving contact from the through hole that touches boss, in the through hole of contact base boss and between the push rod, be provided with outside framework oil seal, above outside framework oil seal, be provided with oil seal cover.
The utility model is installed in the contact base outside fully with moving contact, no longer stretch into contact tube inside, moving contact passes contact base by push rod and is connected with the pull bar of last contact tube inside, and outside framework oil seal and oil seal cover be set between push rod and contact base, push rod and contact base cooperates also that gap location just effectively prevents into water like this, simultaneously, contact base is placed in the top of contact tube also for being welded to connect, can not intake between contact base and the last contact tube yet, effectively raise the integral waterproofing of isolating switch, Corrosion Protection, thereby the reliability and the useful life of having improved isolating switch.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the A portion enlarged drawing of Fig. 1
Embodiment
Now in conjunction with the accompanying drawings the utility model is further described, Fig. 1 is a structural representation of the present utility model, comprise three one poles, operator powder operation device and ground cutter powder operation device, each one pole is the open side type structure, each one pole comprise insulation column 1, rotating insulated sub 2, go up contact tube 3, contact tube 4, contact base 5 and moving contact 6 etc. down.Described contact base 5 is placed in the upper outside of contact tube 3 and is welded to connect with last contact tube 3.The top of contact base 5 is provided with the boss of band through hole, this boss is cylindric, the pull bar top of last contact tube 3 inside is connected with push rod 7, this push rod 7 stretches out the back and is connected with moving contact 6 from the through hole of contact base 5 boss, be with spring between the outside, pull bar and the contact base 5 of push rod 7, this push rod 7 is used for regulating the fingertip clamping force.Be provided with outside framework oil seal 8 in the through hole of contact base 5 boss and between the push rod 7, above outside framework oil seal 8, be provided with oil seal cover 9.
The utility model is provided with outside framework oil seal 8 and oil seal cover 9 between push rod 7 and contact base 5, push rod 7 and contact base 5 cooperates also that gap location just effectively prevents into water like this, simultaneously, contact base 5 is placed in the upper outside of contact tube 3 also for being welded to connect, can not intake between contact base 5 and the last contact tube 3 yet, effectively raise integral waterproofing, the Corrosion Protection of isolating switch, thereby improved the reliability and the useful life of isolating switch.The utlity model has simply, rationally characteristics such as good water-proof effect.
Claims (1)
1. telescopic outdoor high-voltage alternating current isolating switch of the vertical fracture of single-column, comprise three one poles, operator powder operation device and ground cutter powder operation device, each one pole is the open side type structure, each one pole comprises insulation column, rotating insulated son, last contact tube, following contact tube, contact base and moving contact, it is characterized in that: described contact base is placed in the upper outside of contact tube and is welded to connect with last contact tube, the top of contact base is provided with the boss of band through hole, the push rod of last contact tube inside stretches out the back and is connected with moving contact from the through hole that touches boss, in the through hole of contact base boss and between the push rod, be provided with outside framework oil seal, above outside framework oil seal, be provided with oil seal cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020571271XU CN201829402U (en) | 2010-10-15 | 2010-10-15 | Single-post vertical fracture telescopic outdoor high-voltage alternating current isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020571271XU CN201829402U (en) | 2010-10-15 | 2010-10-15 | Single-post vertical fracture telescopic outdoor high-voltage alternating current isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829402U true CN201829402U (en) | 2011-05-11 |
Family
ID=43967922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020571271XU Expired - Fee Related CN201829402U (en) | 2010-10-15 | 2010-10-15 | Single-post vertical fracture telescopic outdoor high-voltage alternating current isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829402U (en) |
-
2010
- 2010-10-15 CN CN201020571271XU patent/CN201829402U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20141015 |
|
| EXPY | Termination of patent right or utility model |