CN202473488U - Protective cover for tap switch on oil tank cover of buried transformer - Google Patents
Protective cover for tap switch on oil tank cover of buried transformer Download PDFInfo
- Publication number
- CN202473488U CN202473488U CN 201220030636 CN201220030636U CN202473488U CN 202473488 U CN202473488 U CN 202473488U CN 201220030636 CN201220030636 CN 201220030636 CN 201220030636 U CN201220030636 U CN 201220030636U CN 202473488 U CN202473488 U CN 202473488U
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- CN
- China
- Prior art keywords
- flange
- cover
- transformer
- oil tank
- protective cover
- 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 - Lifetime
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a protective cover for a tap switch on an oil tank cover of a buried transformer. The protective cover is characterized by comprising a flange cover (2) and a flange disc (3), wherein the flange disc (3) is fixedly connected with the oil tank cover (1) of the buried transformer; a flange on the flange cover (2) is in close fit with the flange disc (3); a sealing washer (6) is arranged between the flange on the flange cover (2) and the flange disc (3); and a washer groove (7) for accommodating the sealing washer (6) is formed on the flange disc (3). The protective cover is high in sealing property and can effectively protect the tap switch on the oil tank cover of the buried transformer.
Description
Technical field
The utility model relates to waterproof, the antirust technology field of transformer accessory, specifically is meant the shunting switch protective cover on a kind of buried oil tank of transformer case lid.
Background technology
The fuel tank of transformer is the external structure of transformer; Has the transformer body of holding; Fill the effect of transformer oil and heat radiation cooling; Shunting switch generally is mounted on the case lid of oil tank of transformer as the accessory of regulating the inner gear of transformer, and the unusual meeting of shunting switch directly has influence on the operate as normal of transformer.Yet the shunting switch of transformer generally is exposed on the fuel tank cover in the prior art, does not have effective safeguard procedures, and the cold rolling iron cover that also just carries through accessory that has simply protects.These simple safeguard structure sealings are very poor can not effectively protect shunting switch; The shunting switch on the fuel tank case lid of buried transformer particularly; Because it is underground that transformer integral body is embedded in; Often have in the practice and run into, cause the situation of transformer cisco unity malfunction because of shunting switch is caused the water of outside to get into oil tank of transformer inside by corrosion.Therefore be badly in need of a kind of device that can effectively protect buried sub-connecting switch of transformer now.
Summary of the invention
The technical problem that the utility model will solve is that a kind of protective cover that can effectively protect the shunting switch on the buried oil tank of transformer case lid of better tightness is provided.
For solving the problems of the technologies described above; The technical scheme that the utility model provides is: the shunting switch protective cover on a kind of buried oil tank of transformer case lid; It comprises flange cover and ring flange, and ring flange is fixedly connected with the fuel tank case lid of buried transformer, flange on the flange cover and ring flange close-fitting; Also be provided with seal washer between flange on the flange cover and the ring flange.
After adopting said structure; The utlity model has following advantage: the structure that adopts flange cover and ring flange combination seal packing ring; Mechanical strength is high, good airproof performance, and waterproof is antirust better; Prevent to get into fuel tank internal in the extraneous water entering fuel tank or because of thereby external environment condition badly makes the shunting switch corrosion damage water, protected the shunting switch on the buried oil tank of transformer case lid effectively.
As improvement, ring flange is provided with the gasket groove that is used for ccontaining seal washer; This structure can improve installation effectiveness so that seal washer is in place fast and accurately through gasket groove, and the position-limiting action through groove simultaneously can not squint at the process middle washer of clamp flange, has guaranteed the effect of sealing.
Description of drawings
Fig. 1 is the protective cover overall structure sketch map that the utility model relates to.
Fig. 2 is the ring flange vertical view that the utility model relates to.
Fig. 3 is the ring flange end view that the utility model relates to.
Fig. 4 is the seal washer vertical view that the utility model relates to.
Fig. 5 is the flange cover end view that the utility model relates to.
As shown in the figure: 1, fuel tank case lid, 2, the flange cover, 3, ring flange, 4, shunting switch, 5, bolt, 6, seal washer, 7, gasket groove, 8, through hole.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description.
In conjunction with accompanying drawing 1, the shunting switch protective cover on a kind of buried oil tank of transformer case lid, it comprises flange cover 2 and ring flange 3, ring flange 3 is fixedly connected with the fuel tank case lid 1 of buried transformer, flange on the flange cover 2 and ring flange 3 close-fittings; Also be provided with seal washer 6 between flange on the flange cover 2 and the ring flange 3.
In conjunction with accompanying drawing 2 and accompanying drawing 3, ring flange 3 is provided with four through holes 8 that are used to wear bolt 5, and gasket groove 7 is a cannelure.
In conjunction with accompanying drawing 4, seal washer 6 is an annular, can adopt the seal washer of acryhic material during practical implementation.
In conjunction with accompanying drawing 5, the surface of the flange face of flange on the flange cover 2 and ring flange 3 matches, and the close-fitting between the flange realizes that through bolt 5 this is technical staff's in the field a general knowledge, no longer details here.
Need to prove, originally execute the flange and the flange cover that adopt in the example and can select 304 stainless steels for use.Ring flange 1 is fixedly connected usually with the fuel tank case lid 1 of buried transformer can adopt welding, also can when fuel tank dispatches from the factory, just be fixed on the fuel tank one-body moldedly, but must guarantee its sealing.Flange cover 2 is except be provided with the opening that is used for fit shunting switch 4 at the close-fitting place with ring flange 3 mutually simultaneously; Other part is an all-sealed structure; And flange cover 2 volume inside are that this also is the common-sense problem, and clear and definite signal is also arranged in the accompanying drawing 1 greater than the volume of shunting switch 4.Ring flange 3 is that the central shaft of ring flange 3 overlaps with the central shaft of shunting switch 4 with the position relation of shunting switch 4.
Below schematically the utility model and execution mode thereof are described, this description does not have restricted, and shown in the accompanying drawing also is one of execution mode of the utility model, and practical structure is not limited thereto.If generally speaking those of ordinary skill in the art is enlightened by it, under the situation that does not break away from the utility model creation aim,, all should belong to the protection range of the utility model without creationary frame mode similar and the embodiment of designing with this technical scheme.
Claims (2)
1. the shunting switch protective cover on the buried oil tank of transformer case lid; It is characterized in that: it comprises flange cover (2) and ring flange (3); Ring flange (3) is fixedly connected with the fuel tank case lid (1) of buried transformer, flange on the flange cover (2) and ring flange (3) close-fitting; Also be provided with seal washer (6) between flange on the flange cover (2) and the ring flange (3).
2. the shunting switch protective cover on the buried oil tank of transformer case lid according to claim 1 is characterized in that: ring flange (3) is provided with the gasket groove (7) that is used for ccontaining seal washer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220030636 CN202473488U (en) | 2012-01-31 | 2012-01-31 | Protective cover for tap switch on oil tank cover of buried transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220030636 CN202473488U (en) | 2012-01-31 | 2012-01-31 | Protective cover for tap switch on oil tank cover of buried transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473488U true CN202473488U (en) | 2012-10-03 |
Family
ID=46921632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220030636 Expired - Lifetime CN202473488U (en) | 2012-01-31 | 2012-01-31 | Protective cover for tap switch on oil tank cover of buried transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473488U (en) |
-
2012
- 2012-01-31 CN CN 201220030636 patent/CN202473488U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |