CN2667640Y - Indoor isolating switch knife ceramic cover assemling structure - Google Patents
Indoor isolating switch knife ceramic cover assemling structure Download PDFInfo
- Publication number
- CN2667640Y CN2667640Y CN 200320113537 CN200320113537U CN2667640Y CN 2667640 Y CN2667640 Y CN 2667640Y CN 200320113537 CN200320113537 CN 200320113537 CN 200320113537 U CN200320113537 U CN 200320113537U CN 2667640 Y CN2667640 Y CN 2667640Y
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- CN
- China
- Prior art keywords
- moving blade
- insulator
- utility
- moving knife
- model
- 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 moving blade and porcelain jacket assembly structure used in the indoor isolating switch of the electricity transmission and transformation system. The technical proposal of the utility model is that the fitting of the moving blade(1) and the porcelain jacket(10) are designed into a mechanical connecting structure; the moving blade(1) and the porcelain jacket(10) are tightly connected through pins(12,8), a fastening screw post(6), a compressing sleeve(5), end covers(11,7) and an adjusting nut(2) to integrate the moving blade(1) and the porcelain jacket(10) into one. The utility model can ensure the tight fitting of the moving blade(1) and the porcelain jacket(10), and also remain a gap between the moving blade(1) and the porcelain jacket(10), thereby compensating the over load of the heat expansion and effectively preventing the porcelain sleeve form bursting. The utility model has the advantages of simple structure and stable performance.
Description
Technical field
The utility model relates to a kind of rotary indoor isolator, and is special relevant with the insulator assembly structure with the moving knife of this switch.
Background technology
Isolating switch is the device of a kind of deciliter circuit commonly used in the power transmission and transformation system, often in the power transmission and transformation system of rated voltage 12kV, three-phase alternating current 50Hz uses a kind of rotary separation switch.At present, the cooperation of known its moving knife of this indoor isolator (cylindrical conductive body) and insulator is to water dress with adhesive (epoxy resin) to form.When the isolating switch normal power-up was moved, the isolating switch temperature raise.But because the gap between moving knife and the insulator is too small in the moving knife assembling, and the coefficient of expansion difference of insulator, adhesive (epoxy resin), moving knife, cause insulator to burst easily, influence the normal operation of system.
Summary of the invention
The purpose of this utility model is the drawback that bursts easily at above-mentioned indoor isolator insulator, designs a kind of safer moving knife, insulator assembly structure.
The technical solution adopted in the utility model is: with cooperating of moving knife and insulator, be designed to the knife ceramic cover assembly structure, it is fastening to use pin, thru-bolt, clamping sleeve and end cap that moving knife and insulator are connected in order, makes it to become rigid body.
The knife ceramic cover assembly structure of the isolating switch that the utility model provides can guarantee the secure fit of moving knife and insulator, and making again between moving knife and the insulator has certain interval, do not enrich any supplement, thereby the compensate for heat expansion interference can prevent effectively that insulator from bursting.Simple in structure, stable performance.
The beneficial effects of the utility model are, the moving knife assembly structure is satisfying on the basis of electric property, and insulator will effectively prevent to burst, and improve the temperature rise reliability, and are simple in structure.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the schematic cross-section of prior art isolating switch knife ceramic cover assembly structure;
Fig. 2 is the knife ceramic cover assembly structure schematic diagram of an embodiment of the utility model.
Embodiment
Among the figure 1, moving knife 2, nut 3, packing ring 4, packing ring 5, clamping sleeve 6, thru-bolt 7, end cap 8, pin 9, pin 10, insulator 11, end cap 12, pin 13, adhesive (epoxy resin)
In the embodiment shown in Figure 2, moving knife 1 is set in the insulator 10, the two ends of insulator 10 are respectively equipped with end cap 11,7, the outside that is positioned at end cap 11 and 7 on the moving knife 1 has spacer pin 12 respectively and compresses pin 8, is equipped with a thru-bolt 6 on the moving knife 1, and an end of thru-bolt 6 is positioned at insulator 10, be connected with moving knife 1 by pin 9, the other end of thru-bolt 6 is positioned at the outside that compresses pin 8 and is provided with a clamping sleeve 5, and clamping sleeve 5 outsides are provided with adjusts nut 2, and cooperation is provided with packing ring 3,4.During use, rotation is adjusted nut 2 and is made it to compress end cap 7 by pin 9 tension moving knife 1 and by pin 8, thereby it is fastening reliable that insulator is cooperated with moving knife, guarantees that system normally moves.
Claims (2)
1, a kind of moving knife of indoor isolator and insulator assembly structure, comprise insulator (10) and be set in the interior moving knife (1) of insulator (10), it is characterized in that: the two ends of insulator (10) are respectively equipped with end cap (11,7), moving knife is positioned at end cap (11 on (1), 7) outside has spacing pin (12) respectively and compresses pin (8), be equipped with a thru-bolt (6) on the moving knife (1), one end of thru-bolt (6) is positioned at insulator (10), be connected with moving knife (1) by pin (9), the other end of thru-bolt (6) is positioned at the outside that compresses pin (8) and is provided with a clamping sleeve (5), and clamping sleeve (5) outside is provided with adjusts nut (2).
2, according to the moving knife and the insulator assembly structure of a kind of indoor isolator described in the claim 1, it is characterized in that: gapped between insulator (10) and the moving knife (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113537 CN2667640Y (en) | 2003-12-25 | 2003-12-25 | Indoor isolating switch knife ceramic cover assemling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113537 CN2667640Y (en) | 2003-12-25 | 2003-12-25 | Indoor isolating switch knife ceramic cover assemling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667640Y true CN2667640Y (en) | 2004-12-29 |
Family
ID=34345060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320113537 Expired - Fee Related CN2667640Y (en) | 2003-12-25 | 2003-12-25 | Indoor isolating switch knife ceramic cover assemling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667640Y (en) |
-
2003
- 2003-12-25 CN CN 200320113537 patent/CN2667640Y/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041229 Termination date: 20121225 |