CN213900240U - Air bleeder of glass steel transformer bushing flange - Google Patents
Air bleeder of glass steel transformer bushing flange Download PDFInfo
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- CN213900240U CN213900240U CN202022912561.2U CN202022912561U CN213900240U CN 213900240 U CN213900240 U CN 213900240U CN 202022912561 U CN202022912561 U CN 202022912561U CN 213900240 U CN213900240 U CN 213900240U
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- flange
- counter bore
- transformer bushing
- bolt
- air
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Abstract
A deflation device of a glass fiber reinforced plastic transformer bushing flange belongs to the technical field of transformer bushing flanges and comprises a step-shaped flange, wherein a large-diameter section of the flange is radially provided with a first deflation hole, one end of the first deflation hole is provided with a counter bore, the other end of the first deflation hole is vertically communicated with a second deflation hole, the second deflation hole is communicated with the end face of the large-diameter end of the flange, the first deflation hole is in threaded connection with a deflation bolt, and a combined gasket is arranged at the joint of the deflation bolt and the counter bore; the counter bore threaded connection has sealed cap, and sealed cap includes the cap body and limiting plate, and one side of the cap body is located to the limiting plate, and the one end of the cap body is equipped with the cap head, and the other end of the cap body is equipped with protruding one, protruding one and counter bore threaded connection, protruding one butt gassing bolt are equipped with protruding two on the limiting plate, still are equipped with the recess on the flange, and protruding two buckles are in the recess. Through setting up structures such as combination packing ring, can ensure the leakproofness between gassing bolt and the flange, improve the stability of transformer bushing operation.
Description
Technical Field
The utility model relates to a transformer bushing flange technical field, concretely relates to degassing unit of glass steel transformer bushing flange.
Background
The transformer bushing is a main insulation device outside the transformer box, and the outgoing lines of the transformer winding must penetrate through the insulation bushing to insulate the outgoing lines and the outgoing lines from the transformer shell, and meanwhile, the transformer bushing plays a role in fixing the outgoing lines. The glass fiber reinforced plastic transformer bushing adopts glass fiber reinforced plastic as main insulation, uses silicon rubber as a climbing umbrella skirt, is provided with aluminum alloy, is not a traditional porcelain bushing structure any longer, is light in weight, and is provided with a transformer, a wall-penetrating sleeve, a GIS and other types of bushings.
At present, in the production of a glass fiber reinforced plastic transformer bushing, a sealing ring is only independently adopted for an air discharging structure of a bushing flange, when a transformer runs, transformer oil in the transformer bushing has certain air pressure, and because the sealing ring at the air discharging device is not provided with a compression amount limiting measure, the phenomena of oil leakage caused by small compression amount of the sealing ring, serious aging caused by large compression amount of the sealing ring and short service life are easily caused, and the running stability of the transformer bushing is influenced.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned shortcoming that prior art exists, the utility model discloses an air bleeder of glass steel transformer bushing flange can ensure the leakproofness between gassing bolt and the flange, reduces the spoilage of sealed department packing ring, has improved the stability of transformer bushing operation.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides an air bleeder of glass steel transformer bushing flange, includes the flange of echelonment, the major diameter section of flange radially is equipped with bleed hole one, the one end of bleed hole one is equipped with the counter bore, the perpendicular intercommunication of the other end of bleed hole one has bleed hole two, bleed hole two with the terminal surface intercommunication of the major diameter end of flange, a bleed hole threaded connection has the gassing bolt, the gassing bolt with counter bore handing-over department is equipped with the combination packing ring.
The anti-explosion exhaust bolt is characterized in that the counter bore is in threaded connection with a sealing cap, the sealing cap comprises a cap body and a limiting plate, the limiting plate is made of rubber, the limiting plate is arranged on one side of the cap body, a cap head is arranged at one end of the cap body, a first protrusion is arranged at the other end of the cap body, the first protrusion is in threaded connection with the counter bore, the first protrusion abuts against the exhaust bolt, a second protrusion is arranged on the limiting plate, a groove is further formed in the flange, and the second protrusion is buckled in the groove.
Preferably, the side wall of the bottom of the counter bore is provided with a limiting groove, and the limiting groove is matched with the combined washer.
Preferably, the first projection abuts against the bleeder bolt.
Preferably, the flange is provided as a cast aluminium flange.
Preferably, the combination gasket is a silicone rubber gasket.
The utility model has the advantages of that:
the combined gasket and the limiting groove provided by the utility model replace the sealing ring with the combined gasket, thereby not only ensuring the compression amount of the combined gasket, but also ensuring the sealing effect, and prolonging the service life of the combined gasket; the sealing cap and other structures ensure the sealing performance between the air bleeding bolt and the flange, avoid oil leakage, reduce the damage rate of the gasket at the sealing position, facilitate the assembly or disassembly of an installer and improve the operation stability of the transformer bushing.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is the structural schematic diagram of the air bleeder of the glass fiber reinforced plastic transformer bushing flange of the utility model.
Fig. 2 is an enlarged view of the utility model a.
In the figure: the structure comprises a sleeve 1, a flange 2, a vent hole I3, a counter bore 4, a vent hole II 5, a vent bolt 6, a combined gasket 7, a cap body 8, a limiting plate 9, a protrusion I10 and a protrusion II 11.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present invention includes a stepped flange 2, a first air vent 3 is radially disposed at a large diameter section of the flange 2, a counter bore 4 is disposed at one end of the first air vent 3, and a second air vent 5 is vertically communicated with the other end of the first air vent 3, so as to form an air vent channel; the second air release hole 5 is communicated with the end face of the large-diameter end of the flange 2, the first air release hole 3 is in threaded connection with an air release bolt 6, and a combined gasket 7 is arranged at the joint of the air release bolt 6 and the counter bore 4 to ensure the sealing performance between the air release bolt 6 and the flange 2.
The counter bore 4 is in threaded connection with a sealing cap so as to enhance the sealing performance of the device; the sealing cap comprises a cap body 8 and a limiting plate 9, the limiting plate 9 is arranged on one side of the cap body 8, and a cap head is arranged at one end of the cap body 8 so as to be convenient for screwing or unscrewing the cap body 8; the other end of the cap body 8 is provided with a first bulge 10, the first bulge 10 is in threaded connection with the counter bore 4, and the first bulge 10 abuts against the air bleeding bolt 6 so as to enhance the sealing performance of the device and prevent the air bleeding bolt 6 from loosening; the limiting plate 9 is provided with a second bulge 11, the flange 2 is also provided with a groove, and the second bulge 11 is buckled in the groove to assist in ensuring the stable connection of the sealing cap; the limiting plate 9 is made of rubber so as to be folded, and the second protrusion 11 on the limiting plate 9 is buckled in the groove after the cap body 8 is screwed down.
The side wall of the bottom of the counter bore 4 is provided with a limiting groove which is matched with the combined gasket 7, so that the damage rate of the gasket at the sealing part is reduced, and the oil leakage condition is avoided.
The flange 2 is provided as a cast aluminum flange 2 to ensure sufficient strength against temperature changes while facilitating handling while ensuring strength.
The combination washer 7 is provided as a silicone rubber packing to ensure sealability between the bleeder bolt 6 and the flange 2.
When the air bleeder works, the second bulge 11 is firstly pulled out of the groove, the cap head is screwed, the cap body 8 is screwed out of the counter bore 4, the air bleeder bolt 6 is unscrewed, and air can be discharged along the second air bleeder 5 and the first air bleeder 3. The setting of the combination packing ring 7 and the sealing cap that this device provided can ensure the leakproofness between gassing bolt 6 and the flange 2 when not needing to exhaust, has made things convenient for installer assembly or dismantlement simultaneously, has improved the stability of transformer bushing operation.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (5)
1. The air bleeder of the glass fiber reinforced plastic transformer bushing flange comprises a step-shaped flange and is characterized in that a first air bleeding hole is radially arranged at the large-diameter section of the flange, a counter bore is formed in one end of the first air bleeding hole, a second air bleeding hole is vertically communicated with the other end of the first air bleeding hole, the second air bleeding hole is communicated with the end face of the large-diameter end of the flange, an air bleeding bolt is in threaded connection with the first air bleeding hole, and a combined gasket is arranged at the joint of the air bleeding bolt and the counter bore;
the counter bore is connected with a sealing cap in a threaded manner, the sealing cap comprises a cap body and a limiting plate, the limiting plate is arranged on one side of the cap body, the limiting plate is made of rubber, a cap head is arranged at one end of the cap body, a first protrusion is arranged at the other end of the cap body, the first protrusion is connected with the counter bore in a threaded manner, a second protrusion is arranged on the limiting plate, a groove is further formed in the flange, and the second protrusion is buckled in the groove.
2. The air bleeder of a glass fiber reinforced plastic transformer bushing flange as claimed in claim 1, wherein a limiting groove is provided on a bottom side wall of the counter bore, the limiting groove being matched with the combination washer.
3. The air bleeder of a glass fiber reinforced plastic transformer bushing flange as claimed in claim 1, wherein said first protrusion abuts against said bleeder bolt.
4. The air bleeder of a glass fiber reinforced plastic transformer bushing flange as claimed in claim 1, wherein said flange is configured as a cast aluminum flange.
5. The air bleeder of a glass fiber reinforced plastic transformer bushing flange as claimed in claim 1, wherein said combination washer is a silicone rubber gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022912561.2U CN213900240U (en) | 2020-12-05 | 2020-12-05 | Air bleeder of glass steel transformer bushing flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022912561.2U CN213900240U (en) | 2020-12-05 | 2020-12-05 | Air bleeder of glass steel transformer bushing flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213900240U true CN213900240U (en) | 2021-08-06 |
Family
ID=77100894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022912561.2U Active CN213900240U (en) | 2020-12-05 | 2020-12-05 | Air bleeder of glass steel transformer bushing flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213900240U (en) |
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2020
- 2020-12-05 CN CN202022912561.2U patent/CN213900240U/en active Active
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