CN207116169U - A kind of sand-proof current transformer expander - Google Patents
A kind of sand-proof current transformer expander Download PDFInfo
- Publication number
- CN207116169U CN207116169U CN201720967294.4U CN201720967294U CN207116169U CN 207116169 U CN207116169 U CN 207116169U CN 201720967294 U CN201720967294 U CN 201720967294U CN 207116169 U CN207116169 U CN 207116169U
- Authority
- CN
- China
- Prior art keywords
- expander
- housing
- bottom plate
- sand
- bellows
- 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
It the utility model is related to current transformer field, specifically a kind of sand-proof current transformer expander, including expander housing, expander bellows and blend stop, the expander bellows is arranged in the expander housing, oil level sign is provided with the expander bellows, the expander housing includes housing shells and bottom plate, the oil level window for observing the oil level sign is provided with the housing shells, on the inside of the housing shells, a circle blend stop is provided with the bottom plate outer, the oiler communicated with the expander bellows is provided with the middle part of the bottom plate.The utility model can prevent the tiny grains of sand from entering inside expander, and the dust storm that is particularly suitable for use in is larger, the area of bad environments.
Description
Technical field
Current transformer field is the utility model is related to, specifically a kind of sand-proof current transformer expander.
Background technology
In order to avoid transformer built-in electrical insulation oil contacts with extraneous air, oil is kept to make moist and aoxidize, oil immersed type is mutual
Sensor is all full-closed structure, and wherein high-voltage mutual inductor realizes sealing using metal expander more.Expander traditional design is outer
Housing directly contacts connection with bottom plate, but in the severe area of part natural environment, such as Inner Mongol etc., dry and wind
Husky larger, expander is entered inside expander using that will not occur tiny dust storm for a long time from outer cover and back plate connections gap
Situation, inspection hole is polluted, influences to use.
Utility model content
The purpose of this utility model is to provide a kind of sand-proof current transformer expander, in the bottom plate of expander housing
On along housing shells inwall be provided with one circle blend stop, prevent the tiny grains of sand from entering inside expander, in addition the bottom plate
Installing plate is provided with the outside of the oiler at middle part, the installing plate forms seam, the company of oil conservater upper end oil port with the bottom plate
Acting flange is embedded in the seam to be connected with the installing plate, is further ensured that sealing.
The purpose of this utility model is achieved through the following technical solutions：
A kind of sand-proof current transformer expander, including expander housing, expander bellows and blend stop, the expansion
Device bellows is arranged in the expander housing, and oil level sign, the expansion are provided with the expander bellows
Device housing includes housing shells and bottom plate, and the oil level instruction for observing the oil level sign is provided with the housing shells
Window, on the inside of the housing shells, a circle blend stop is provided with the bottom plate outer rim, is provided with and the expansion in the middle part of the bottom plate
The oiler that device bellows communicates.
Be provided with installing plate, and the installing plate and the bottom plate one seam of formation on the outside of the oiler, oil storage during use
The adpting flange of cabinet upper end oil port is embedded in the seam to be connected with the installing plate.
Sidewall weld on the inside of the installing plate with the oiler is connected, the installing plate outside and the expander shell
The bottom plate of body is connected by bolt.
Mounting hole is circumferentially evenly equipped with the installing plate.
The advantages of the utility model is with good effect：
1st, the utility model is provided with a circle blend stop on the bottom plate of expander housing along housing shells inwall, prevents tiny
The grains of sand are entered inside expander.
2nd, the utility model is provided with oiler in the middle part of the bottom plate of expander housing, and installation is provided with the outside of the oiler
Plate, and the installing plate and the bottom plate form seam, the adpting flange of oil conservater upper end oil port be embedded in the seam with
The installing plate is connected, and is further ensured that sealing.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model,
Fig. 2 is enlarged drawing at the A in Fig. 1.
Wherein, 1 is housing shells, and 2 be valve element, and 3 be oil level window, and 4 be oil level sign, and 5 be expander ripple
Pipe, 6 be blend stop, and 7 be installing plate, and 8 be oiler, and 9 be bottom plate, and 10 be bolt, and 11 be mounting hole.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Fig. 1~2, the utility model includes expander housing, expander bellows 5 and blend stop 6, the expander
Bellows 5 is arranged in the expander housing, is provided with the expander bellows 5 and is moved with the breathing of expander bellows 5
Dynamic oil level sign 4, the expander housing include housing shells 1 and bottom plate 9, the lower end of housing shells 1 and bottom plate 9
It is connected, oil level window 3 is provided with the housing shells 1, and through the oil level window 3 it is observed that the oil level
Sign 4, a circle blend stop 6 is provided with the outer rim of bottom plate 9, and the blend stop 6 is also disposed in the housing shells 1 simultaneously
Side, just blocked after the tiny grains of sand enter housing shells 1 by the blend stop 6, not further into inside expander, at the bottom
The middle part of plate 9 is provided with the oiler 8 communicated with the expander bellows 5, and the outside of the oiler 8 is provided with installing plate 7, described
The inner side of installing plate 7 and the sidewall weld of the oiler 8 are connected, the outside of installing plate 7 and the bottom plate 9 of the expander housing
It is connected by bolt 10, and the installing plate 7 and bottom plate 9 form a seam, the connection method of oil conservater upper end oil port during use
It is connected in the embedded seam of orchid and with the installing plate 7, is further ensured that sealing, it is circumferentially equal on installing plate 7
It is furnished with the mounting hole 11 for being connected with oil conservater.
Operation principle of the present utility model is：
The utility model is provided with a circle blend stop 6 in the outer rim of bottom plate 9 of expander housing, and the blend stop 6 is also provided with simultaneously
In the inner side of the housing shells 1, just blocked after the tiny grains of sand enter housing shells 1 by the blend stop 6, not further into swollen
Inside swollen device, the outside of 9 middle part oiler of bottom plate 8 is provided with installing plate 7 in addition, and the installing plate 7 is formed with the bottom plate 9 and stopped
Mouthful, the adpting flange of oil conservater upper end oil port is embedded in the seam to be connected with the installing plate 7, is further ensured that sealing.
Claims (4)
- A kind of 1. sand-proof current transformer expander, it is characterised in that：Including expander housing, expander bellows (5) and Blend stop (6), the expander bellows (5) are arranged in the expander housing, are provided with the expander bellows (5) Oil level sign (4), the expander housing include housing shells (1) and bottom plate (9), set on the housing shells (1) There is the oil level window (3) for observing the oil level sign (4), on the inside of the housing shells (1), in the bottom plate (9) Outer rim is provided with a circle blend stop (6), and the oiler communicated with the expander bellows (5) is provided with the middle part of the bottom plate (9) (8)。
- 2. sand-proof current transformer expander according to claim 1, it is characterised in that：On the outside of the oiler (8) Provided with installing plate (7), and the installing plate (7) and the bottom plate (9) form a seam, oil conservater upper end oil port during use Adpting flange is embedded in the seam to be connected with the installing plate (7).
- 3. sand-proof current transformer expander according to claim 2, it is characterised in that：On the inside of the installing plate (7) It is connected with the sidewall weld of the oiler (8), the bottom plate (9) on the outside of the installing plate (7) with the expander housing passes through Bolt (10) is connected.
- 4. the sand-proof current transformer expander according to Claims 2 or 3, it is characterised in that：In the installing plate (7) On be circumferentially evenly equipped with mounting hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720967294.4U CN207116169U (en) | 2017-08-04 | 2017-08-04 | A kind of sand-proof current transformer expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720967294.4U CN207116169U (en) | 2017-08-04 | 2017-08-04 | A kind of sand-proof current transformer expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207116169U true CN207116169U (en) | 2018-03-16 |
Family
ID=61581889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720967294.4U Expired - Fee Related CN207116169U (en) | 2017-08-04 | 2017-08-04 | A kind of sand-proof current transformer expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207116169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977193A (en) * | 2021-10-14 | 2022-01-28 | 沈阳海为电力装备股份有限公司 | Method for manufacturing rust-proof carbon steel cabinet cover of internal oil type metal corrugated expansion oil conservator |
-
2017
- 2017-08-04 CN CN201720967294.4U patent/CN207116169U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977193A (en) * | 2021-10-14 | 2022-01-28 | 沈阳海为电力装备股份有限公司 | Method for manufacturing rust-proof carbon steel cabinet cover of internal oil type metal corrugated expansion oil conservator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |