CN210896874U - Combined transformer low-voltage sleeve - Google Patents
Combined transformer low-voltage sleeve Download PDFInfo
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- CN210896874U CN210896874U CN201921182854.0U CN201921182854U CN210896874U CN 210896874 U CN210896874 U CN 210896874U CN 201921182854 U CN201921182854 U CN 201921182854U CN 210896874 U CN210896874 U CN 210896874U
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- bushing
- sleeve
- nut
- conductive rod
- tank wall
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Abstract
The utility model relates to the technical field of transformer low-voltage bushing, in particular to a combined transformer low-voltage bushing, which solves the defect of low assembly efficiency of the low-voltage bushing existing in the prior art, and comprises a conductive rod, a porcelain bushing, a fuel tank wall and a bushing, wherein the top of the conductive rod is provided with a conductive head, the conductive rod is sleeved with a sleeve, the top of the porcelain bushing is provided with a through hole, the conductive rod is vertically sleeved in the through hole, the porcelain bushing is positioned outside the fuel tank wall, the upper end of the conductive rod and the conductive head are positioned outside the fuel tank wall, the lower end of the conductive rod positioned inside the fuel tank wall is provided with an external thread, and the bushing is sleeved outside the conductive rod. The assembly is simple, and the assembly efficiency is greatly improved.
Description
Technical Field
The utility model relates to a transformer low-voltage bushing technical field especially relates to a modular transformer low-voltage bushing.
Background
With the rapid development of the power industry in China, the use level of the transformer is increased dramatically, and the requirement on the transformer is higher. During the operation of the transformer, the transformer bushing is one of the key components affecting the power transmission and transformation performance of the transformer. At present, in the process of installing and operating a transformer, because the transformer bushing is almost completely fixed on a box cover of the transformer in an external clamping and wafer type installation mode, the transformer bushing is not integrally installed, the manufacturing cost of the low-voltage bushing is low, and the assembly process is relatively complex, the working efficiency is low during assembly.
Disclosure of Invention
The utility model aims at solving the shortcoming of low pressure sleeve pipe assembly inefficiency that exists among the prior art, and the modular transformer low pressure sleeve pipe that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a modular transformer low pressure sleeve pipe, includes conducting rod, insulator, oil tank wall and sleeve pipe, the top of conducting rod is equipped with conductive head, the cover that goes up of conducting rod is equipped with the sleeve, the top of insulator is equipped with the through-hole, and the vertical cover of conducting rod is established in the through-hole, the insulator is located the outside of oil tank wall, the upper end and the conductive head of conducting rod are located the outside of oil tank wall, and the conducting rod is located the inboard lower extreme of oil tank wall and be equipped with the external screw thread, the sleeve pipe cover is established in the outside of conducting rod, and sheathed tube upper portion is located between insulator and the sleeve.
Preferably, a first sealing ring is arranged between the bottom end of the porcelain sleeve and the upper wall surface of the oil tank wall.
Preferably, a second sealing ring is arranged between the upper end of the sleeve and the inner wall of the top of the porcelain sleeve.
Preferably, a third sealing ring is arranged between the lower end of the sleeve and the lower part of the inner wall of the sleeve.
Preferably, the bottom end of the sleeve is in threaded connection with a first nut and a second nut, and the second nut is located below the first nut.
Preferably, a first gasket is arranged between the first nut and the bottom end of the sleeve, and a second gasket is arranged between the first nut and the second nut.
Compared with the prior art, the utility model discloses not only reduced transformer low pressure sheathed tube manufacturing cost, simplified assembly process, need not weld the double-screw bolt moreover on the transformer tank wall, avoided having had good sealed effect simultaneously because of the inaccurate problem that causes unable installation of welding position, the assembly is simple, very big improvement assembly efficiency.
Drawings
Fig. 1 is a schematic view of a sectional structure of a combined transformer low-voltage bushing according to the present invention;
fig. 2 is the utility model provides a modular transformer low-voltage bushing's main view structure schematic diagram.
In the figure: the structure comprises a conductive rod 1, a porcelain bushing 2, a conductive head 3, a first gasket 4, a fuel tank wall 5, a sleeve 6, a sleeve 7, a second gasket 8, a third gasket 9, a first nut 10, a first gasket 11, a second gasket 12 and a second nut 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a modular transformer low voltage bushing, including conducting rod 1, conducting rod 1's top is equipped with conducting head 3, conducting rod 1's last cover is equipped with sleeve 7, insulator 2's top is equipped with the through-hole, and conducting rod 1 vertical cover is established in the through-hole, oil tank wall 5, insulator 2 is located the outside of oil tank wall 5, conducting rod 1's upper end and conducting head 3 are located the outside of oil tank wall 5, and conducting rod 1 is located the inboard lower extreme of oil tank wall 5 and is equipped with the external screw thread, sleeve 6 covers the outside at conducting rod 1, and sleeve 6's upper portion is located between insulator 2 and sleeve 7.
Wherein, be equipped with first sealing washer 4 between the last wall at the bottom of insulator 2 and oil tank wall 5, be equipped with second sealing washer 8 between the upper end of sleeve 7 and the inner wall at 2 tops of insulator, be equipped with third sealing washer 9 between the lower extreme of sleeve 7 and the lower part of sleeve 6 inner walls, a plurality of sealing washers can ensure the reliable and good leakproofness of installation.
Wherein, the bottom end threaded connection of sleeve 6 has first nut 10 and second nut 13, and second nut 13 is located the below of first nut 10, be equipped with first packing ring 11 between first nut 10 and the 6 bottom ends of sleeve 6, be equipped with second packing ring 12 between first nut 10 and the second nut 13, a plurality of nuts can fasten the transformer bushing with the gasket better, make sheathed tube installation more firm, utilize the great contact surface of first nut 10 and second nut 13, transmit the electric energy for the conducting rod better.
Example (b): the transformer bushing can be fastened better by the aid of the nuts and the gaskets, the bushing is more firmly installed, the electric energy is better transmitted to the conducting rod by means of the large contact surfaces of the first nut 10 and the second nut 13, the installation is reliable and good in sealing performance can be guaranteed by the aid of the sealing rings, manufacturing cost of a transformer low-voltage bushing is reduced after the combined bushing is adopted, assembly technology is simplified, a stud does not need to be welded on the wall of a transformer oil tank, the problem that installation cannot be carried out due to inaccurate welding positions is solved, and meanwhile, a good sealing effect is achieved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A modular transformer low voltage bushing, comprising:
the conductive device comprises a conductive rod (1), wherein a conductive head (3) is arranged at the top of the conductive rod (1), and a sleeve (7) is sleeved on the conductive rod (1);
the top of the porcelain sleeve (2) is provided with a through hole, and the conducting rod (1) is vertically sleeved in the through hole;
the conductive rod comprises a fuel tank wall (5), wherein the porcelain sleeve (2) is positioned on the outer side of the fuel tank wall (5), the upper end of the conductive rod (1) and the conductive head (3) are positioned on the outer side of the fuel tank wall (5), and the lower end of the conductive rod (1) positioned on the inner side of the fuel tank wall (5) is provided with an external thread;
the bushing (6) is sleeved on the outer side of the conducting rod (1), and the upper portion of the bushing (6) is located between the porcelain bushing (2) and the sleeve (7).
2. A combined transformer low-voltage bushing according to claim 1, characterized in that a first sealing ring (4) is arranged between the bottom end of the porcelain bushing (2) and the upper wall surface of the oil tank wall (5).
3. A combined transformer low-voltage bushing according to claim 1, characterized in that a second sealing ring (8) is provided between the upper end of the sleeve (7) and the inner wall of the top of the porcelain bushing (2).
4. A combined transformer low-voltage bushing according to claim 1, characterized in that a third sealing ring (9) is provided between the lower end of the sleeve (7) and the lower part of the inner wall of the bushing (6).
5. A modular transformer low-voltage bushing according to claim 1, characterized in that the bottom end of the bushing (6) is threaded with a first nut (10) and a second nut (13), and the second nut (13) is located below the first nut (10).
6. A combined transformer low-voltage bushing according to claim 5, characterized in that a first washer (11) is arranged between the first nut (10) and the bottom end of the bushing (6), and a second washer (12) is arranged between the first nut (10) and the second nut (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921182854.0U CN210896874U (en) | 2019-07-25 | 2019-07-25 | Combined transformer low-voltage sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921182854.0U CN210896874U (en) | 2019-07-25 | 2019-07-25 | Combined transformer low-voltage sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210896874U true CN210896874U (en) | 2020-06-30 |
Family
ID=71311836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921182854.0U Active CN210896874U (en) | 2019-07-25 | 2019-07-25 | Combined transformer low-voltage sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210896874U (en) |
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2019
- 2019-07-25 CN CN201921182854.0U patent/CN210896874U/en active Active
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