CN212694915U - Central guide rod assembly - Google Patents
Central guide rod assembly Download PDFInfo
- Publication number
- CN212694915U CN212694915U CN202021853684.7U CN202021853684U CN212694915U CN 212694915 U CN212694915 U CN 212694915U CN 202021853684 U CN202021853684 U CN 202021853684U CN 212694915 U CN212694915 U CN 212694915U
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- China
- Prior art keywords
- central guide
- guide rod
- insulating
- wire holder
- rod assembly
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Abstract
A central guide rod assembly. The utility model relates to an extra-high voltage alternating current equipment technical field, concretely relates to improvement that is used for connecting the guide arm of two-stage transformer among extra-high voltage alternating current equipment's the long-term operation operating mode analog system. A center guide rod assembly having an insulation protection function is provided. The utility model discloses set up the insulating tube outside central guide arm, the insulating tube protects the exposed metal surface in central guide arm middle part effectively, avoids central guide arm after the circular telegram, rather than metal parts on every side produce electric arc. In addition, the insulating support ring of the groove of the middle guide pipe can be attached to the inner wall of the insulating pipe, the uniform distance between the insulating pipe and the central guide rod is guaranteed, and short circuit between the insulating pipe and the central guide rod due to gravity deformation, oscillation and the like is prevented.
Description
Technical Field
The utility model relates to an extra-high voltage alternating current equipment technical field, concretely relates to improvement that is used for connecting the guide arm of two-stage transformer among extra-high voltage alternating current equipment's the long-term operation operating mode analog system.
Background
At present, in a simulation system for simulating the long-term operation condition of extra-high voltage alternating current equipment, the sleeves of a multi-stage transformer are electrically connected through a guide rod, so that the construction of a branch of the alternating current equipment to be checked is realized.
The granted announcement patent document of the applicant, namely 'the central guide rod of the extra-high voltage alternating current equipment', the granted announcement date: 2019.07.26, respectively; a center guide rod applicable to a simulation system is disclosed, but in the actual use process, the center guide rod is long, and after the center guide rod is electrified, electric arcs are easily generated between the center guide rod and other surrounding metal parts, so that unnecessary loss is caused.
Disclosure of Invention
The utility model provides a to above problem, provide a central guide bar subassembly with insulation protection function.
The utility model discloses a concrete technical scheme is: the central guide rod assembly comprises a wire holder, an intermediate guide tube and an end socket which are sequentially connected, wherein an insulating tube is sleeved outside the intermediate guide tube, a plurality of grooves are formed in the surface of the intermediate guide tube, insulating support rings are arranged in the grooves, and the outer annular surfaces of the insulating support rings are attached to the inner wall of the insulating tube.
The wire holder is provided with a first step circle, a plurality of through holes are uniformly distributed in the axial direction of the first step circle, and the inner end face of the first step circle is provided with at least one annular sealing groove.
And the end of the insulating tube facing the wire holder is provided with a step circle II matched with the step circle I of the wire holder.
The middle guide pipe is of a hollow structure, and one end, facing the wire holder, of the middle guide pipe is connected with the wire holder through a first thread.
One end of the middle conduit, which faces the end head, is connected with the end head through a second thread.
The insulating support ring is composed of a pair of semicircular rings.
The utility model discloses set up the insulating tube outside central guide arm, the insulating tube protects the exposed metal surface in central guide arm middle part effectively, avoids central guide arm after the circular telegram, rather than metal parts on every side produce electric arc. In addition, the insulating support ring of the groove of the middle guide pipe can be attached to the inner wall of the insulating pipe, the uniform distance between the insulating pipe and the central guide rod is guaranteed, and short circuit between the insulating pipe and the central guide rod due to gravity deformation, oscillation and the like is prevented.
Drawings
Figure 1 is a schematic sectional structure of the present invention,
figure 2 is a top view of figure 1,
figure 3 is an enlarged view of a portion a,
figure 4 is an enlarged view of a portion of section B,
fig. 5 is a partially enlarged view of the portion C.
In the figure, 1 is a wire holder, 11 is a silver coating, 12 is a step circle I, 13 is an annular sealing groove, 14 is a through hole, 15 is a thread I, 2 is a middle guide pipe, 21 is a groove, 3 is an end head, 31 is a silver coating, 32 is a thread II, 4 is an insulating pipe, 41 is a step circle II, and 5 is an insulating support ring.
Detailed Description
The present invention will be further described with reference to fig. 1-5. As shown in fig. 1, the wire holder comprises a wire holder 1, an intermediate guide tube 2 and a tip 3 which are connected in sequence, wherein an insulating tube 4 is sleeved outside the intermediate guide tube 2, a plurality of grooves 21 are formed in the surface of the intermediate guide tube 2, an insulating support ring 5 is arranged in each groove 21, and the outer ring surface of each insulating support ring 5 is attached to the inner wall of the corresponding insulating tube 4. The wire holder 1 and the terminal 3 are exposed outside the insulating tube 4, the outer surfaces of the wire holder 1 and the terminal 3 are plated with silver, and the silver plating layer 11 and the silver plating layer 31 are respectively arranged on the wire holder 1 and the terminal 3.
The wire holder 1 is provided with a first step circle 12, a plurality of through holes 14 are uniformly distributed in the axial direction of the first step circle 12, and the inner end face of the first step circle 12 is provided with at least one annular sealing groove 13. The end of the insulating tube 4 facing the wire holder 1 is provided with a second step circle 41 matched with the first step circle 12 of the wire holder 1.
The middle guide pipe 2 is of a hollow structure, and one end, facing the wire holder 1, of the middle guide pipe 2 is connected with the wire holder 1 through a first thread 15. The middle conduit 2 is of a hollow structure, the hollow is circular, the diameter of the hollow circle is half of that of the middle conduit 2, the power-on sectional area can be ensured, and the weight can be reduced. One end of the middle guide pipe 2 facing the wire holder 1 is connected with the wire holder 1 through a first thread 15, and when the wire holder 1 is damaged, the middle guide pipe is convenient to screw out and replace.
One end of the middle conduit 2 facing the end head 3 is connected with the end head 3 through a second thread 32, and when the end head 3 is damaged, the middle conduit can be conveniently screwed out and replaced.
When the insulating support ring 4 is made of rigid material, the insulating support ring 4 is arranged into a pair of half-rings joggled with each other, so that the insulating support ring 4 can be conveniently installed.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (6)
1. The central guide rod assembly comprises a wire holder, an intermediate guide tube and an end socket which are sequentially connected, and is characterized in that an insulating tube is sleeved outside the intermediate guide tube, a plurality of grooves are formed in the surface of the intermediate guide tube, insulating support rings are arranged in the grooves, and the outer ring surfaces of the insulating support rings are attached to the inner wall of the insulating tube.
2. The central guide rod assembly according to claim 1, wherein the wire holder is provided with a first step circle, a plurality of through holes are uniformly distributed in the axial direction of the first step circle, and the inner end face of the first step circle is provided with at least one annular sealing groove.
3. The center guide bar assembly according to claim 2, wherein the end of the insulation tube facing the wire holder is provided with a step circle two matching with the step circle one of the wire holder.
4. The center guide bar assembly as claimed in claim 1, wherein the intermediate guide tube is a hollow structure, and an end of the intermediate guide tube facing the wire holder is connected with the wire holder by a screw thread.
5. The central guide rod assembly according to claim 4, wherein the end of the intermediate guide tube facing the tip is threadably coupled to the tip.
6. The center guide bar assembly according to claim 1, wherein said insulating support ring is comprised of a pair of semi-circular rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021853684.7U CN212694915U (en) | 2020-08-28 | 2020-08-28 | Central guide rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021853684.7U CN212694915U (en) | 2020-08-28 | 2020-08-28 | Central guide rod assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212694915U true CN212694915U (en) | 2021-03-12 |
Family
ID=74903750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021853684.7U Active CN212694915U (en) | 2020-08-28 | 2020-08-28 | Central guide rod assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212694915U (en) |
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2020
- 2020-08-28 CN CN202021853684.7U patent/CN212694915U/en active Active
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