CN202473713U - Closing state self-maintenance type isolating switch - Google Patents
Closing state self-maintenance type isolating switch Download PDFInfo
- Publication number
- CN202473713U CN202473713U CN 201220030236 CN201220030236U CN202473713U CN 202473713 U CN202473713 U CN 202473713U CN 201220030236 CN201220030236 CN 201220030236 CN 201220030236 U CN201220030236 U CN 201220030236U CN 202473713 U CN202473713 U CN 202473713U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- isolating switch
- flashboard
- self
- type isolating
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a closing state self-maintenance type isolating switch. The switch comprises a rack body, a pedestal, a transmission connecting lever, a transmission pull bar and a flashboard. The pedestal is connected with the rack body via a connecting plate. The flashboard is arranged on the rack body through a flashboard shaft and a flashboard support. The transmission connecting lever is connected with the pedestal via a mandrel. The bottom of the pedestal is equipped with a rotary limiting flange. The isolating switch has a self-maintenance function under a closing state, eliminates hidden troubles of equipment, effectively minimizes idle strokes of closing operation, and substantially improves safety and reliability for operation of the equipment.
Description
Technical field
The utility model belongs to the power system device technical field, particularly a kind of "on" position self-sustaining type isolating switch.
Background technology
GW10A-252W/4000 type high voltage isolator in electric power system begins in the time period that finishes of closing a floodgate from combined floodgate, and the operation porcelain vase of isolating switch bears moment of torsion, and the time that operate moment of torsion that porcelain vase bears this moment generally is in scope of design.If after combined floodgate puts in place, because the cooperation between horizontal connecting lever and the waling stripe can form the dead point, the operation porcelain vase of isolating switch will no longer bear moment of torsion this moment, and promptly isolating switch has possessed self-retaining function in "on" position.In this case, run out of steam and still can normally move under the situation about supporting.
And the high voltage isolator that uses at present because the cooperation between its horizontal connecting lever and the waling stripe did not mostly form the dead point, thereby did not possess the dead point self-retaining function.This isolating switch is when beginning to carry out closing operation and the whole service process; The operation porcelain vase of isolating switch is in the state that bears moment of torsion all the time; Isolating switch is operated moment of torsion that porcelain vase bears when running status time is scope of design head and shoulders above, and this quality to porcelain vase is a kind of unusual test.In case the operation porcelain insulator breaking, because isolating switch does not possess the dead point self-retaining function excessively under the "on" position, its current-carrying part will come off voluntarily, causes open-phase operation, is equivalent to on-load drawing isolating switch, and consequence is hardly imaginable.
The utility model content
The purpose of the utility model is to provide a kind of dead point self-retaining function that possessed, and can guarantee that electric power system is normal, the "on" position self-sustaining type isolating switch of safe operation.
The technical scheme that purpose adopted that realizes the utility model is: a kind of "on" position self-sustaining type isolating switch; Comprise support body, pedestal, transmission crank arm, shackle rod and flashboard; Wherein, pedestal is connected with said support body through connecting plate, and flashboard is installed on the said support body through flashboard axis and flashboard support; Transmission crank arm is connected with said pedestal through axle, and the bottom of said pedestal is provided with the rotary spacing flange.
On the mating surface of said rotary spacing flange and pedestal positive stop lug boss and limited impression are set respectively.
Angle between said transmission crank arm and the shackle rod in "on" position less than 180 °.
Said shackle rod two ends adopt the self-lubricating spherical plain bearing rod end to be connected with flashboard axis with transmission crank arm respectively.
The "on" position self-sustaining type isolating switch of the utility model; Setting through spacing flange; Make the angle between transmission crank arm and the shackle rod can realize the self-retaining function of "on" position thus less than 180 °, can prevent to operate the damage of porcelain vase with imitating in "on" position; The potential safety hazard of abatement apparatus guarantees the safe operation of electric power system.Simultaneously, the shackle rod two ends adopt self-lubricating stalk end oscillating bearing to connect, and have reduced the idle stroke of closing operation effectively, thereby have improved the fail safe and the reliability of equipment operation greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of pedestal and rotary spacing flange among Fig. 1.
Embodiment
Referring to Fig. 1, Fig. 2; The "on" position self-sustaining type isolating switch of the utility model comprises support body 1, pedestal 10, transmission crank arm 4, shackle rod 8 and flashboard 7, wherein; Pedestal 10 is connected with said support body 1 through connecting plate 3; Flashboard 7 is installed on the said support body 1 through flashboard axis 6 and flashboard support 5, and transmission crank arm 4 is connected with said pedestal 10 through axle 9, and the bottom of said pedestal 10 is provided with rotary spacing flange 2.On the mating surface of said rotary spacing flange 2 and pedestal 10 positive stop lug boss and limited impression are set respectively; And through the two cooperation make angle between transmission crank arm 4 and the shackle rod 8 in "on" position less than 180 °; Formed the dead point self-retaining function thus, after combined floodgate puts in place, the operation porcelain vase 11 of isolating switch will no longer bear moment of torsion; Thereby prevented the damage of operation porcelain vase 11 effectively, guaranteed the safe operation of electric power system.Said shackle rod 8 two ends adopt self-lubricating spherical plain bearing rod end 8-1 to be connected with flashboard axis 6 with transmission crank arm 4 respectively, can reduce the idle stroke of breaking-closing operating so effectively, and operation is sensitive more.
Claims (4)
1. "on" position self-sustaining type isolating switch; It is characterized in that: it comprises support body, pedestal, transmission crank arm, shackle rod and flashboard; Wherein, pedestal is connected with said support body through connecting plate, and flashboard is installed on the said support body through flashboard axis and flashboard support; Transmission crank arm is connected with said pedestal through axle, and the bottom of said pedestal is provided with the rotary spacing flange.
2. "on" position self-sustaining type isolating switch as claimed in claim 1 is characterized in that: on the mating surface of said rotary spacing flange and pedestal positive stop lug boss and limited impression are set respectively.
3. "on" position self-sustaining type isolating switch as claimed in claim 1 is characterized in that: the angle between said transmission crank arm and the shackle rod in "on" position less than 180 °.
4. "on" position self-sustaining type isolating switch as claimed in claim 1 is characterized in that: said shackle rod two ends adopt the self-lubricating spherical plain bearing rod end to be connected with flashboard axis with transmission crank arm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220030236 CN202473713U (en) | 2012-01-31 | 2012-01-31 | Closing state self-maintenance type isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220030236 CN202473713U (en) | 2012-01-31 | 2012-01-31 | Closing state self-maintenance type isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473713U true CN202473713U (en) | 2012-10-03 |
Family
ID=46921856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220030236 Expired - Fee Related CN202473713U (en) | 2012-01-31 | 2012-01-31 | Closing state self-maintenance type isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108022790A (en) * | 2018-01-08 | 2018-05-11 | 许涛 | A kind of disconnecting switch |
-
2012
- 2012-01-31 CN CN 201220030236 patent/CN202473713U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108022790A (en) * | 2018-01-08 | 2018-05-11 | 许涛 | A kind of disconnecting switch |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20130131 |