CN207009267U - A kind of bushing shell for transformer - Google Patents
A kind of bushing shell for transformer Download PDFInfo
- Publication number
- CN207009267U CN207009267U CN201720977878.XU CN201720977878U CN207009267U CN 207009267 U CN207009267 U CN 207009267U CN 201720977878 U CN201720977878 U CN 201720977878U CN 207009267 U CN207009267 U CN 207009267U
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- CN
- China
- Prior art keywords
- bushing shell
- sealing gasket
- transformer
- porcelain bushing
- extended flange
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- 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.)
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Abstract
It the utility model is related to a kind of bushing shell for transformer, including porcelain bushing shell, extended flange, sealing gasket, hold-down bolt, distance of the upper surface of base away from first full skirt set by porcelain bushing shell bottom is 38mm 53mm, the part that porcelain bushing shell is located at below base is extend into oil tank of transformer, its part extending into oil tank of transformer of porcelain bushing shell is provided with annular groove, sealing gasket is enclosed on annular groove, extended flange is enclosed on the porcelain bushing shell between sealing gasket and tank internal surface, the lower surface of extended flange is in contact with the upper surface of sealing gasket, the screw portion of hold-down bolt holds out against tank internal surface after passing through extended flange.The beneficial effects of the utility model are：Built-in bolt holds out against mounting structure, solves the problems, such as to get rusty in exposure air, avoids the aging of seal, the process for decreasing production, has saved cost.
Description
Technical field
It the utility model is related to field of electrical equipment, more particularly to a kind of bushing shell for transformer.
Background technology
Sleeve pipe is the outgoing line device for guiding to the high-voltage line of inside transformer outside fuel tank, serves not only as the exhausted over the ground of lead
Edge, but also play a part of anchor leg, it is one of transformer important accessory.Because must have electrically strong as defined in standard
Degree and enough mechanical strengths.
The sleeve pipe of transformer is one of current-carrying component, after transformer puts into operation, for a long time by load current, therefore must
Moment when must have good heat endurance, while should be able to bear short circuit overheats.
Traditional bushing shell for transformer is fixedly connected with compression using bolt type outside case lid mostly, such mounting means, has
2 drawbacks：First, the complication of manufacturing procedure, and the presser feet bolt of metal reduce effective insulation distance, cause not
Necessary waste；Second, external application bolt can wear the antirust paint to shield in installation process, will by exposing to the sun and rain
Rust spot is caused to corrode fuel tank, on causing very big hidden danger safely and influenceing the life-span of transformer.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of bushing shell for transformer, with overcome it is above-mentioned in the prior art
Deficiency.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of bushing shell for transformer, including it is porcelain bushing shell, outer
Flange, sealing gasket, hold-down bolt are stretched, distance of the upper surface of base away from first full skirt set by porcelain bushing shell bottom is 38mm-
53mm, the part that porcelain bushing shell is located at below base are extend into oil tank of transformer, porcelain bushing shell its extend into oil tank of transformer
Part is provided with annular groove, and sealing gasket is enclosed on annular groove, and extended flange is enclosed between sealing gasket and tank internal surface
Porcelain bushing shell on, the lower surface of extended flange is in contact with the upper surface of sealing gasket, and the screw portion of hold-down bolt is through overhanging
Tank internal surface is held out against after flange.
The beneficial effects of the utility model are：
1) bolt built in holds out against mounting structure, solves the problems, such as to get rusty in exposure air, avoids the old of seal
Change, the process for decreasing production, saved cost；
2) distance of the upper surface of base away from first full skirt set by porcelain bushing shell bottom will be allowed to be changed into 38mm-53mm, so
Both the outer mounting means of traditional nail pressing bolt had been remained, and has conveniently used new built-in mode, has facilitated selection and the profit of user
With；
3) installation is more easy to operate, and has more preferable mechanical strength and electrical strength, simple in construction, attractive in appearance, small volume,
Do not take up space.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, sealing gasket is the structure of loopful half opening.
Further, sealing gasket is made of nylon.
Further, the thickness of sealing gasket is 6mm.
It is using above-mentioned further beneficial effect：Required intensity can be ensured, possess enough toughness and elasticity goes to put down
Weigh the strength at each position, porcelain bushing shell will not be damaged, and its good insulation heat resistance and can is preferably to porcelain bushing shell
It is protected by, easy to install and use.
Further, extended flange is adopted as porcelain flange.
Further, in addition to ring washer, ring washer are enclosed between the lower surface of base and the outer surface of fuel tank
Porcelain bushing shell on.
It is using above-mentioned further beneficial effect：Sealing can be further ensured that.
Further, distance of the upper surface of base away from first full skirt set by porcelain bushing shell bottom is 43mm.
It is using above-mentioned further beneficial effect：Both the outer mounting means of traditional nail pressing bolt had been remained, and had conveniently been adopted
With new built-in mode, facilitate the selection and utilization of user.
Brief description of the drawings
Fig. 1 is the structure chart of bushing shell for transformer described in the utility model；
Fig. 2 is the structure chart of porcelain bushing shell in Fig. 1；
Fig. 3 is Fig. 1 top view；
Fig. 4 is Fig. 1 partial enlarged drawing；
Fig. 5 is the structure chart of sealing gasket in Fig. 4.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, porcelain bushing shell, 110, base, 120, annular groove, 2, extended flange, 3, sealing gasket, 4, hold-down bolt, 5, screw rod,
6th, nut, 7, pressing plate, 8, fuel tank, 9, ring washer.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, a kind of bushing shell for transformer, including porcelain bushing shell 1, extended flange 2, sealing gasket
3rd, four hold-down bolts 4, ring washer 9.
Distance of the upper surface of base 110 away from first full skirt set by the bottom of porcelain bushing shell 1 is h, wherein, h 38mm-
53mm, concretely 38mm, 41mm, 43mm, 47mm, 50mm, 53mm, preferably 43mm.
Porcelain bushing shell 1 is located at part of the base below 110 and extend into oil tank of transformer 8, porcelain bushing shell 1 its extend into transformer
Part in fuel tank 8 is provided with annular groove 120, and sealing gasket 3 is stuck in annular groove 120, wherein, sealing gasket 3 is that loopful is half-open
The structure of mouth, sealing gasket 3 are made of nylon.Porcelain bushing shell 1 opens up the diameter 57mm of annular groove 120, and the internal diameter of sealing gasket 3 is
58mm, the groove width of annular groove 120 is 7mm, and the thickness of sealing gasket 3 is 6mm, and the external diameter of sealing gasket 3 is 70mm.Extended flange 2
It is enclosed on the porcelain bushing shell 1 between sealing gasket 3 and the inner surface of fuel tank 8, wherein, extended flange 2 is preferably with porcelain flange.It is overhanging
The lower surface of flange 2 is provided with the first blind hole, and the upper surface of extended flange 2 is provided with the second blind hole, the first blind hole and second blind
Hole is connected, and the internal diameter of the first blind hole is more than the internal diameter of the second blind hole, and the internal diameter of the first blind hole is equal to the external diameter of sealing gasket 3, this
The wall surface of first blind hole of sample extended flange 2 can be in contact with the upper surface of sealing gasket 3, the screw rod of four hold-down bolts 45
Point through holding out against the inner surface of fuel tank 8 after extended flange 2, four 4 rounded distributions of hold-down bolt, between adjacent hold-down bolt 4
Angle be 90 °.
Bushing shell for transformer also includes screw rod 5, nut 6, pressing plate 7, wherein, the base 110 of screw rod 5 around porcelain bushing shell 1 is set
Put on the outer surface of fuel tank 8, wherein, one end of screw rod 5 is fixedly connected with the outer surface of fuel tank 8, and the other end of screw rod 5 is
Free end.Pressing plate 7 is fixed on screw rod 5 by nut 6, and pressing plate 7 can press against the upper of base 110 simultaneously in the presence of nut 6
Surface and the outer surface of fuel tank 8.Ring washer 9 is enclosed on the insulator between the lower surface of base 110 and the outer surface of fuel tank 8
On pipe 1.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (7)
1. a kind of bushing shell for transformer, it is characterised in that including porcelain bushing shell (1), extended flange (2), sealing gasket (3), hold-down bolt
(4), distance of the upper surface away from first full skirt of base (110) is 38mm-53mm set by porcelain bushing shell (1) bottom, described
Porcelain bushing shell (1) is located at the part of base (110) below and extend into oil tank of transformer (8), the porcelain bushing shell (1) its extend into change
Part in depressor fuel tank (8) is provided with annular groove (120), and the sealing gasket (3) is enclosed on annular groove (120), described outer
Flange (2) is stretched to be enclosed on the porcelain bushing shell (1) between sealing gasket (3) and fuel tank (8) inner surface, the extended flange (2)
Lower surface is in contact with the upper surface of sealing gasket (3), after the screw rod (5) of the hold-down bolt (4) partially passes through extended flange (2)
Hold out against fuel tank (8) inner surface.
2. a kind of bushing shell for transformer according to claim 1, it is characterised in that the sealing gasket (3) is loopful half opening
Structure.
3. a kind of bushing shell for transformer according to claim 2, it is characterised in that the sealing gasket (3) is made of nylon.
4. a kind of bushing shell for transformer according to claim 3, it is characterised in that the thickness of the sealing gasket (3) is 6mm.
5. a kind of bushing shell for transformer according to claim 1, it is characterised in that the extended flange (2) is adopted as porcelain method
It is blue.
6. a kind of bushing shell for transformer according to claim 1, it is characterised in that also including ring washer (9), the annular
Packing ring (9) is enclosed on the porcelain bushing shell (1) between the lower surface of base (110) and the outer surface of fuel tank (8).
A kind of 7. bushing shell for transformer according to any one of claim 1 to 6, it is characterised in that porcelain bushing shell (1) bottom
Distance of the upper surface away from first full skirt of set base (110) is 43mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720977878.XU CN207009267U (en) | 2017-08-07 | 2017-08-07 | A kind of bushing shell for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720977878.XU CN207009267U (en) | 2017-08-07 | 2017-08-07 | A kind of bushing shell for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207009267U true CN207009267U (en) | 2018-02-13 |
Family
ID=61458722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720977878.XU Active CN207009267U (en) | 2017-08-07 | 2017-08-07 | A kind of bushing shell for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207009267U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113963913A (en) * | 2021-08-26 | 2022-01-21 | 搏世因（北京）高压电气有限公司 | Plug-in lead connector |
-
2017
- 2017-08-07 CN CN201720977878.XU patent/CN207009267U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113963913A (en) * | 2021-08-26 | 2022-01-21 | 搏世因（北京）高压电气有限公司 | Plug-in lead connector |
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