CN209626916U - Distribution network line earth protective device - Google Patents
Distribution network line earth protective device Download PDFInfo
- Publication number
- CN209626916U CN209626916U CN201920573645.2U CN201920573645U CN209626916U CN 209626916 U CN209626916 U CN 209626916U CN 201920573645 U CN201920573645 U CN 201920573645U CN 209626916 U CN209626916 U CN 209626916U
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- cross
- column
- arm
- fixedly connected
- insulator
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Abstract
The utility model discloses distribution network line earth protective devices, including column and cross cross-arm, the cross cross-arm is socketed in the outside of column, bobbin is fixedly connected on the inner wall that the cross cross-arm is contacted with column, and bobbin is slidably socketed in the outside of column, the cross cross-arm offers the mounting hole being connected to up and down far from the upper end of column, and insulator is provided in mounting hole, the lower end outside of the insulator is socketed with trapezoidal pipe fitting, it is fixedly connected between the upper surface of the trapezoidal pipe fitting and cross cross-arm by multiple first bolts, and the lower end of trapezoidal pipe fitting extends in mounting hole, there are two clamp systems corresponding with trapezoidal pipe fitting for setting in the mounting hole, the lower end of multiple insulators is fixedly connected to ground line.The utility model, since the overvoltage that thunder and lightning generates timely is transported to the earth, can will reduce damage of the thunder and lightning to communication line, play the effect of protection on communication line.
Description
Technical field
The utility model relates to protective device technical field more particularly to distribution network line earth protective devices.
Background technique
At the season that thunderstorm takes place frequently, the case where communication line is damaged because of lightning stroke, occurs often, mainly due to communication
System has members to be exposed to outdoor, is prone to be struck by lightning and damage.When broken string, non-three phase occur for power grid, with bar route
The ungrounded failure such as capacitive coupling increases the asymmetrical voltage of power grid, may cause the automatic regulation controller of arc suppression coil
Erroneous judgement power grid occurs ground connection and acts, and very high neutral point displacement voltage at this moment will be generated in power grid, is caused one in system
Mutually or two-phase voltage increases very much, so that other equipment in damage power grid.
Therefore, it is necessary to design a kind of distribution network line earth protective device to reduce lightning stroke shadow caused by communication line
It rings.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and the distribution network line ground connection proposed
Protective device.
To achieve the goals above, the utility model adopts the technical scheme that
Distribution network line earth protective device, including column and cross cross-arm, the cross cross-arm are socketed in the outer of column
Side is fixedly connected with bobbin on the inner wall that the cross cross-arm is contacted with column, and bobbin is slidably socketed in the outside of column, institute
It states cross cross-arm and offers the mounting hole being connected to up and down far from the upper end of column, and be provided with insulator in mounting hole, it is described exhausted
The lower end outside of edge is socketed with trapezoidal pipe fitting, by multiple first bolts between the upper surface and cross cross-arm of the trapezoidal pipe fitting
It is fixedly connected, and the lower end of trapezoidal pipe fitting extends in mounting hole, there are two corresponding with trapezoidal pipe fitting for setting in the mounting hole
Clamp system, the lower end of multiple insulators is fixedly connected to ground line, and more piece-root grafting ground wires far from insulator one
It holds and is connect with external grounding body, guiding mechanism corresponding with ground line is provided on the side wall of the column.
Preferably, multiple threaded holes being connected to column are offered on the side wall of the bobbin, and threaded hole internal screw thread connects
It is connected to fastening bolt.
Preferably, the clamp system includes multiple springs being fixedly connected in inner wall of the hole installing, and multiple springs are remote
It is fixedly connected with the same curved splint from one end of inner wall of the hole installing, the trapezoidal pipe fitting is correspondingly arranged at two curved splints
Between.
Preferably, the guiding mechanism includes the annular element being slidably socketed on the outside of column, the annular element and column it
Between be fixedly connected by the second bolt, and multiple supporting blocks are fixedly connected on the side wall of annular element, the upper end of the supporting block is opened
Equipped with pilot hole corresponding with ground line, and it is grounded and is arranged through pilot hole.
Preferably, the insulator uses ceramic insulator, and the ground line is grounded using stainless steel.
Compared with prior art, the utility model has the following beneficial effects:
1, by the lateral wall of column sliding sleeve be connected to cross cross-arm, and be provided on cross cross-arm it is multiple absolutely
Edge, in addition, be grounded and grounding body being used cooperatively under, can by communication line due to thunder and lightning generate overvoltage and
When be transported to the earth, reduce damage of the thunder and lightning to communication line, reduce the frequency of maintenance of service worker.
2, it by being provided with clamp system corresponding with insulator in the mounting hole of cross cross-arm, can further increase
Bonding strength between insulator and cross cross-arm, and influence of the external vibration to insulator is reduced, facilitate insulator
Stablize use, play the effect of protection.
Detailed description of the invention
Fig. 1 be the utility model proposes distribution network line earth protective device structural schematic diagram；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 be the utility model proposes distribution network line earth protective device cross cross-arm schematic top plan view.
In figure: 1 column, 2 cross cross-arms, 3 bobbins, 4 insulators, 5 trapezoidal pipe fittings, 6 ground lines, 7 fastening bolts, 8 springs,
9 curved splints, 10 annular elements, 11 supporting blocks.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, distribution network line earth protective device, including column 1 and cross cross-arm 2, cross cross-arm 2 are socketed in
The outside of column 1 is fixedly connected with bobbin 3 on the inner wall that cross cross-arm 2 is contacted with column 1, and bobbin 3 is slidably socketed in column
1 outside, specifically, offering multiple threaded holes being connected to column 1 on the side wall of bobbin 3, and threaded hole internal screw thread connects
There is fastening bolt 7, be adjusted and fix convenient for the position to bobbin 3, is needed with being suitable for the use of 4 different height of insulator
It asks, cross cross-arm 2 offers the mounting hole being connected to up and down far from the upper end of column 1, and insulator 4 is provided in mounting hole, absolutely
The lower end outside of edge 4 is socketed with trapezoidal pipe fitting 5, by multiple first bolts between the upper surface and cross cross-arm 2 of trapezoidal pipe fitting 5
It is fixedly connected, and the lower end of trapezoidal pipe fitting 5 extends in mounting hole, there are two corresponding with trapezoidal pipe fitting 5 for setting in mounting hole
Clamp system.
Wherein, clamp system includes multiple springs 8 being fixedly connected in inner wall of the hole installing, and multiple springs 8 are far from peace
One end of dress hole inner wall is fixedly connected with the same curved splint 9, and trapezoidal pipe fitting 5 is correspondingly arranged between two curved splints 9,
By the way that clamp system is arranged, the bonding strength between insulator 4 and cross cross-arm 2 can be further increased, and reduce outside
Influence of the vibration to insulator 4, facilitate stablizing for insulator 4 and use, play the effect of protection.
Specifically, the lower end of multiple insulators 4 is fixedly connected to ground line 6, insulator 4 uses ceramic insulator, connects
Ground wire 6 is grounded using stainless steel, and the one end of more piece-root grafting ground wires 6 far from insulator 4 is connect with external grounding body, column 1
Side wall on be provided with and be grounded 6 corresponding guiding mechanisms, wherein guiding mechanism includes being slidably socketed in the outside of column 1
Annular element 10 is fixedly connected between annular element 10 and column 1 by the second bolt, and is fixedly connected on the side wall of annular element 10 more
A supporting block 11, the upper end of supporting block 11 offers and is grounded 6 corresponding pilot holes, and is grounded 6 and is arranged through pilot hole,
By being provided with guiding mechanism in the outside of column 1, earth wire 6 plays the effect of guiding, avoids ground line 6 from winding occur mixed
Random situation facilitates the long-time service of ground line 6.
In the utility model, by the lateral wall of column 1 sliding sleeve be connected to cross cross-arm 2, and in cross cross-arm 2
On be provided with multiple insulators 4, ground line 6 and grounding body being used cooperatively under, can by communication line due to thunder and lightning produce
Raw overvoltage is timely transported to the earth, reduces damage of the thunder and lightning to communication line, reduces the frequency of maintenance of service worker, separately
Outside, when needing the position to cross cross-arm 2 to be adjusted, it is only necessary to it slides bobbin 3 and is fixed with fastening bolt 7, and
And by the way that 6 corresponding guiding mechanisms are provided with and be grounded on the side wall of column 1, ground line 6 is avoided winding confusion occur
Situation facilitates the long-time service of ground line 6.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. distribution network line earth protective device, including column (1) and cross cross-arm (2), which is characterized in that the cross cross-arm
(2) it is socketed in the outside of column (1), is fixedly connected with bobbin (3) on the inner wall that the cross cross-arm (2) contacts with column (1),
And bobbin (3) is slidably socketed in the outside of column (1), the cross cross-arm (2) offers far from the upper end of column (1) to be connected up and down
Logical mounting hole, and insulator (4) are provided in mounting hole, the lower end outside of the insulator (4) is socketed with trapezoidal pipe fitting
(5), it is fixedly connected between the upper surface with cross cross-arm (2) of the trapezoidal pipe fitting (5) by multiple first bolts, and trapezoidal pipe fitting
(5) lower end extends in mounting hole, and there are two clamp systems corresponding with trapezoidal pipe fitting (5) for setting in the mounting hole, more
The lower end of a insulator (4) is fixedly connected to ground line (6), and the one end of more piece-root grafting ground wires (6) far from insulator (4)
It is connect with external grounding body, guiding mechanism corresponding with ground line (6) is provided on the side wall of the column (1).
2. distribution network line earth protective device according to claim 1, which is characterized in that the side wall of the bobbin (3)
On offer multiple threaded holes being connected to column (1), and threaded hole internal screw thread is connected with fastening bolt (7).
3. distribution network line earth protective device according to claim 1, which is characterized in that the clamp system includes more
A spring (8) being fixedly connected in inner wall of the hole installing, and multiple springs (8) are fixedly connected with far from one end of inner wall of the hole installing
The same curved splint (9), the trapezoidal pipe fitting (5) are correspondingly arranged between two curved splints (9).
4. distribution network line earth protective device according to claim 1, which is characterized in that the guiding mechanism includes sliding
The dynamic annular element (10) being socketed on the outside of column (1) is connected between the annular element (10) and column (1) by the second bolt is fixed
Connect, and be fixedly connected with multiple supporting blocks (11) on the side wall of annular element (10), the upper end of the supporting block (11) offer with
It is grounded (6) corresponding pilot hole, and is grounded (6) and is arranged through pilot hole.
5. distribution network line earth protective device according to claim 1, which is characterized in that the insulator (4) uses
Ceramic insulator, the ground line (6) are grounded using stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920573645.2U CN209626916U (en) | 2019-04-25 | 2019-04-25 | Distribution network line earth protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920573645.2U CN209626916U (en) | 2019-04-25 | 2019-04-25 | Distribution network line earth protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209626916U true CN209626916U (en) | 2019-11-12 |
Family
ID=68458959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920573645.2U Expired - Fee Related CN209626916U (en) | 2019-04-25 | 2019-04-25 | Distribution network line earth protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209626916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768968A (en) * | 2020-12-30 | 2021-05-07 | 甘宇翔 | Safety grounding device for power system |
-
2019
- 2019-04-25 CN CN201920573645.2U patent/CN209626916U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768968A (en) * | 2020-12-30 | 2021-05-07 | 甘宇翔 | Safety grounding device for power system |
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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: 20191112 Termination date: 20200425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |