CN213844975U - Long conductive tube connecting structure for transformer bushing - Google Patents
Long conductive tube connecting structure for transformer bushing Download PDFInfo
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- CN213844975U CN213844975U CN202022738938.7U CN202022738938U CN213844975U CN 213844975 U CN213844975 U CN 213844975U CN 202022738938 U CN202022738938 U CN 202022738938U CN 213844975 U CN213844975 U CN 213844975U
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- tube
- conductive tube
- connecting tube
- upper conductive
- lower conductive
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Abstract
The utility model discloses a long conductive tube connecting structure for a transformer bushing, which comprises an upper conductive tube, a lower conductive tube and a connecting tube, wherein the upper conductive tube and the lower conductive tube are respectively in threaded connection with two ends of the connecting tube; positioning pins are respectively arranged between the upper conductive tube and the connecting tube in a penetrating manner and between the lower conductive tube and the connecting tube in a penetrating manner, one positioning pin penetrates through the upper conductive tube and the connecting tube along the radial direction of the upper conductive tube and the connecting tube, and the other positioning pin penetrates through the lower conductive tube and the connecting tube along the radial direction of the lower conductive tube and the connecting tube; the end faces of the pipe openings, opposite to the upper conductive pipe and the lower conductive pipe, are connected by welding; the utility model provides a go up between the contact tube and the lower contact tube and connect through connecting pipe and locating pin to adopt welded technology mode to connect fixedly, thereby improve long contact tube part overall structure's mechanical strength and stability, avoided long contact tube overall structure to take place not hard up in assembly, experiment and use, make long contact tube overall structure safe and reliable.
Description
Technical Field
The utility model relates to a be used for 550kV and above transformer bushing's long conductive tube connection structure belongs to transformer bushing technical field.
Background
The upper and lower conductive tubes of the existing 550kV and above transformer bushing are only connected in a mode of screwing internal and external threads, and the connection mode has poor fastening performance and strength and is easy to loosen in the assembly process, so that the conductive performance is unstable, and the use performance of the product is influenced.
Disclosure of Invention
For solving prior art's not enough, the utility model provides a be used for transformer bushing's long conductive tube connection structure goes up the conductive tube and is connected through connecting pipe and locating pin between the conductive tube down to adopt welded technology mode to connect fixedly, thereby improve long conductive tube part overall structure's mechanical strength and stability, avoided long conductive tube overall structure to take place not hard up in assembly, experiment and use, make long conductive tube overall structure safe and reliable, electric conductive property is stable, improve product quality.
The utility model discloses the technical scheme who adopts does:
the long conductive tube connecting structure for the transformer bushing comprises an upper conductive tube, a lower conductive tube and a connecting tube, wherein the upper conductive tube and the lower conductive tube are respectively in threaded connection with two ends of the connecting tube, and the connecting tube is positioned inside the upper conductive tube and the lower conductive tube; positioning pins are respectively arranged between the upper conductive tube and the connecting tube in a penetrating manner and between the lower conductive tube and the connecting tube in a penetrating manner, one positioning pin penetrates through the upper conductive tube and the connecting tube along the radial direction of the upper conductive tube and the connecting tube, and the other positioning pin penetrates through the lower conductive tube and the connecting tube along the radial direction of the lower conductive tube and the connecting tube; and the end faces of the pipe openings, opposite to the upper conductive pipe and the lower conductive pipe, are connected by welding.
As the utility model discloses a further preferred, it is domatic respectively with the relative nose end face of lower contact tube to go up the contact tube, goes up the contact tube and constitutes V type groove with the domatic relative of lower contact tube, goes up the contact tube and passes through welded connection and form welded structure with lower contact tube in V type groove department.
As the utility model discloses a further preferred, the both ends and the last contact tube welded connection of one of them locating pin, the both ends and the lower contact tube welded connection of another one locating pin.
As a further preferred aspect of the present invention, the axes of the two positioning pins are perpendicular to each other and do not intersect.
As a further preferred aspect of the present invention, the positioning pin is a solid cylinder structure or a hollow cylinder structure.
The beneficial effects of the utility model reside in that: go up between the electric conduction pipe and the lower electric conduction pipe and connect through connecting pipe and locating pin to adopt welded technology mode to connect fixedly, thereby improve long electric conduction pipe part overall structure's mechanical strength and stability, avoided long electric conduction pipe overall structure to take place not hard up in assembly, experiment and use, make long electric conduction pipe overall structure safe and reliable, electric conductive property is stable, improves product quality.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the main reference numerals in the figures have the following meanings:
1-upper conductive tube, 2-positioning pin, 3-lower conductive tube, 4-connecting tube, 5-welding structure.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1: the embodiment is a long conductive tube connecting structure for a transformer bushing, which comprises an upper conductive tube 1, a lower conductive tube 3 and a connecting tube 4, wherein the upper conductive tube 1 and the lower conductive tube 3 are respectively in threaded connection with two ends of the connecting tube 4, and the connecting tube 4 is positioned inside the upper conductive tube 1 and the lower conductive tube 3; positioning pins 2 are respectively arranged between the upper conductive tube 1 and the connecting tube 4 and between the lower conductive tube 3 and the connecting tube 4 in a penetrating manner, one positioning pin 2 penetrates through the upper conductive tube 1 and the connecting tube 4 along the radial direction of the upper conductive tube 1 and the connecting tube 4, and the other positioning pin 2 penetrates through the lower conductive tube 3 and the connecting tube 4 along the radial direction of the lower conductive tube 3 and the connecting tube 4; the opposite end faces of the pipe openings of the upper conductive pipe 1 and the lower conductive pipe 3 are connected through welding.
In this embodiment, the end faces of the upper conductive tube 1 and the lower conductive tube 3 opposite to each other are respectively a slope, the slopes of the upper conductive tube 1 and the lower conductive tube 3 opposite to each other form a V-shaped groove, and the upper conductive tube 1 and the lower conductive tube 3 are connected by welding at the V-shaped groove to form a welding structure 5.
In this embodiment, two ends of one of the positioning pins 2 are welded to the upper conductive tube 1, and two ends of the other positioning pin 2 are welded to the lower conductive tube 3.
In this embodiment, the two positioning pins 2 are not on the same horizontal plane, and the axes of the two positioning pins 2 are perpendicular to each other and do not intersect.
The locating pin 2 in this embodiment is a solid cylinder structure, and when in actual application, the locating pin 2 can also be selected for use as a hollow cylinder structure.
In the present embodiment, during assembly, the upper conductive tube 1, the lower conductive tube 3 and the connecting tube 4 are first connected by threads, the connected connecting tube 4 is located inside the upper conductive tube 1 and the lower conductive tube 3, and then the two positioning pins 2 are inserted to start welding; firstly, welding V-shaped grooves of an upper conductive tube 1 and a lower conductive tube 3 to form a welding structure 5, and then respectively welding and connecting two positioning pins 2 with the upper conductive tube 1 and the lower conductive tube 3; after welding is finished, polishing the welding line to be flat and smooth, and ensuring the mechanical strength of welding; finally, it should be straightened out and kept clean.
The utility model provides a go up between the contact tube and the lower contact tube and connect through connecting pipe and locating pin to adopt welded technology mode to connect fixedly, thereby improve long contact tube part overall structure's mechanical strength and stability, avoided long contact tube overall structure to take place not hard up in assembly, experiment and use, make long contact tube overall structure safe and reliable, electric conductive property is stable, improves product quality.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A long electric conduction pipe connection structure for transformer bushing, its characterized in that: the conductive tube comprises an upper conductive tube, a lower conductive tube and a connecting tube, wherein the upper conductive tube and the lower conductive tube are respectively in threaded connection with two ends of the connecting tube, and the connecting tube is positioned inside the upper conductive tube and the lower conductive tube; positioning pins are respectively arranged between the upper conductive tube and the connecting tube in a penetrating manner and between the lower conductive tube and the connecting tube in a penetrating manner, one positioning pin penetrates through the upper conductive tube and the connecting tube along the radial direction of the upper conductive tube and the connecting tube, and the other positioning pin penetrates through the lower conductive tube and the connecting tube along the radial direction of the lower conductive tube and the connecting tube; and the end faces of the pipe openings, opposite to the upper conductive pipe and the lower conductive pipe, are connected by welding.
2. The long contact tube connection structure for the transformer bushing as claimed in claim 1, wherein the end faces of the upper and lower contact tubes opposite to each other are slope surfaces, the slope surfaces of the upper and lower contact tubes opposite to each other form a V-shaped groove, and the upper and lower contact tubes are connected by welding at the V-shaped groove to form a welded structure.
3. The long contact tube connection structure for the transformer bushing as claimed in claim 1, wherein both ends of one of the positioning pins are welded to the upper contact tube, and both ends of the other positioning pin are welded to the lower contact tube.
4. The long contact tube connection structure for the transformer bushing according to claim 1 or 3, wherein the axes of the two positioning pins are perpendicular to each other and do not intersect.
5. The long contact tube connection structure for the transformer bushing as claimed in claim 1 or 3, wherein the positioning pin is a solid cylinder structure or a hollow cylinder structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022738938.7U CN213844975U (en) | 2020-11-24 | 2020-11-24 | Long conductive tube connecting structure for transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022738938.7U CN213844975U (en) | 2020-11-24 | 2020-11-24 | Long conductive tube connecting structure for transformer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213844975U true CN213844975U (en) | 2021-07-30 |
Family
ID=76990418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022738938.7U Active CN213844975U (en) | 2020-11-24 | 2020-11-24 | Long conductive tube connecting structure for transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213844975U (en) |
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2020
- 2020-11-24 CN CN202022738938.7U patent/CN213844975U/en active Active
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