CN113820804A - Transformer substation overhead ground wire composite optical cable down-leading structure - Google Patents
Transformer substation overhead ground wire composite optical cable down-leading structure Download PDFInfo
- Publication number
- CN113820804A CN113820804A CN202110936392.2A CN202110936392A CN113820804A CN 113820804 A CN113820804 A CN 113820804A CN 202110936392 A CN202110936392 A CN 202110936392A CN 113820804 A CN113820804 A CN 113820804A
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- China
- Prior art keywords
- insertion hole
- optical cable
- ground wire
- overhead ground
- pipe
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- 230000003287 optical effect Effects 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 31
- 230000037431 insertion Effects 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000001681 protective effect Effects 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004927 clay Substances 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a transformer substation overhead ground wire composite optical cable down-leading structure which comprises a guide pipe, wherein a protective pipe end enclosure is arranged at the top of the guide pipe and comprises a shell, an upper insertion hole for inserting a cable is formed in the top of the shell, a lower insertion hole for inserting the guide pipe is formed in the bottom of the shell, a rubber block is arranged in the upper insertion hole, the upper insertion hole is communicated with the lower insertion hole, an opening of the lower insertion hole is located at the bottom of the shell, and an annular sealing block is arranged in the lower insertion hole. The invention has the advantages that: the top of the guide pipe is sealed through the protective pipe sealing head, foreign matters or water are prevented from entering the guide pipe, the top of the protective pipe sealing head is provided with the upper insertion hole, the optical cable can be smoothly inserted, the bottom of the protective pipe sealing head is provided with the lower insertion hole matched with the guide pipe, the installation is simple and convenient, the service life of the protective pipe sealing head is longer than that of rubber clay, and the rubber block and the sealing block are arranged, so that the good sealing performance of the whole protective pipe sealing head is ensured.
Description
Technical Field
The invention relates to a transformer substation overhead ground wire composite optical cable down-leading structure.
Background
The composite optical cable of the overhead ground wire is also called OPGW, and the problems of hidden danger, strand breakage, cable release and the like in operation are caused because the current OPGW is not designed at a domestic power grid transformer substation terminal. In order to ensure safe operation of the OPGW which is put into operation in time, the national network communication adopts technical measures, and three-point grounding is required, so that the QGDW _758_2012 installation process specification is issued. The standard is mainly an emergency technical measure for patching, and solves the problem of strand breakage caused by discharging of a cable and a rod body in transit.
However, in the existing overhead ground wire composite optical cable, the non-metal reserved cable is coiled into the guide pipe in a crossed manner, the inlet end of the guide pipe is still plugged by plasticine, and the plasticine is easy to air-dry in an outdoor environment, so that the cable falls off and fails after cracking.
Disclosure of Invention
The invention aims to provide a transformer substation overhead ground wire composite optical cable down-leading structure which can effectively solve the problem that the existing conduit inlet plugging is easy to fail.
In order to solve the technical problems, the invention is realized by the following technical scheme: the transformer substation overhead ground wire composite optical cable down-leading structure comprises a guide pipe, wherein a protective pipe end socket is arranged at the top of the guide pipe and comprises a shell, an upper insertion hole for inserting a cable is formed in the top of the shell, a lower insertion hole for inserting the guide pipe is formed in the bottom of the shell, a rubber block is arranged in the upper insertion hole, the upper insertion hole is communicated with the lower insertion hole, an opening of the lower insertion hole is located at the bottom of the shell, and an annular sealing block is arranged in the lower insertion hole.
Preferably, the rubber block is provided with a first inner hole, and a plurality of first ring grooves coaxial with the upper insertion hole are arranged in the first inner hole. Through a plurality of first annular, let the rubber block produce the space of deformation when the optical cable inserts, make things convenient for the optical cable to insert the back and form sealedly between the rubber block.
Preferably, the sealing block is provided with a second inner hole, and a plurality of second annular grooves coaxial with the lower insertion hole are formed in the second inner hole. The bottom plate and the second annular groove leave a deformation space, and a good seal is formed between the bottom plate and the guide pipe when the guide pipe is inserted.
Preferably, the outer surface of the sealing block is also provided with a plurality of third ring grooves. The sealing block is convenient to be tightly matched with the lower insertion hole.
Preferably, the number of the third ring grooves is equal to that of the second ring grooves, and the third ring grooves and the second ring grooves are not located on the same horizontal plane. And the sealing block is ensured to have enough strength.
Compared with the prior art, the invention has the advantages that: the top of the guide pipe is sealed through the protective pipe sealing head, foreign matters or water are prevented from entering the guide pipe, the top of the protective pipe sealing head is provided with the upper insertion hole, the optical cable can be smoothly inserted, the bottom of the protective pipe sealing head is provided with the lower insertion hole matched with the guide pipe, the installation is simple and convenient, the service life of the protective pipe sealing head is longer than that of rubber clay, and the rubber block and the sealing block are arranged, so that the good sealing performance of the whole protective pipe sealing head is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a down-leading structure of a composite optical cable of an overhead ground wire of a transformer substation according to the present invention;
fig. 2 is a schematic structural view of the protective tube end socket of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and 2, the embodiment of the compound optical cable drop structure of the overhead ground wire of the transformer substation of the invention comprises a voltage limiting device 1, a drop cable insulation fastener 2, a nonmetal reserved cable cross disc 3 and a conduit 4 which are sequentially arranged on a tower from top to bottom, wherein the top of the conduit 4 is provided with a protective pipe end enclosure 5, the protective pipe end enclosure 5 comprises a shell 6, the top of the shell 6 is provided with an upper insertion hole 7 for inserting a cable, the bottom of the shell 6 is provided with a lower insertion hole 8 for inserting the conduit 4, a rubber block 9 is arranged in the upper insertion hole 7, the upper insertion hole 7 is communicated with the lower insertion hole 8, an opening of the lower insertion hole 8 is positioned at the bottom of the shell 6, and an annular sealing block 10 is arranged in the lower insertion hole 8.
Seal 4 tops of pipe through pillar head 5, prevent that foreign matter or water from entering into in the pipe 4, open at the top of pillar head 5 has last patchhole 7, lets the optical cable insert smoothly, and the bottom is opened has lower patchhole 8 and pipe 4 cooperation, and the installation is simple and convenient, and longer for plasticine life-span to setting up rubber block 9 and seal block 10, guaranteeing that whole pillar head 5 has good leakproofness.
In order to guarantee good leakproofness, the block rubber 9 is opened there is first hole 12, be equipped with a plurality of first annuluses 11 with last patchhole 7 coaxial line in the first hole 12, sealed piece 10 is opened there is second hole 13, second hole 13 is interior to have a plurality ofly and the second annular 14 of patchhole 8 coaxial line down, can let the size ratio of last patchhole 7 and patchhole 8 down optical cable and pipe 4 size that correspond less than, form interference fit, through first annular 11 and second annular 14, can reduce the degree of difficulty of inserting optical cable and pipe 4, provide certain space, form a plurality of sealed chambeies simultaneously, further improve the leakproofness. And the arrangement can also accommodate cables of different approach sizes.
A plurality of third ring grooves 15 may also be formed on the outer surface of the sealing block 10 to improve the sealing property between the sealing block 10 and the hole wall of the lower insertion hole 8, and in order to ensure the strength of the sealing block 10, the number of the third ring grooves 15 is equal to the number of the second ring grooves 14, and the third ring grooves 15 and the second ring grooves 14 are not located on the same horizontal plane.
During the use, overlap this device on pipe 4 earlier, pipe 4 passes second hole 13 and stretches into in the rubber block, forms multichannel sealed between second annular 14 and the pipe 4 lateral wall simultaneously, inserts the optical cable from first hole 12 again, penetrates in the pipe 4, and first annular 11 forms multichannel sealed with the optical cable lateral wall to ensure to seal the mouth of pipe 4, avoid rainwater or toy to enter into in the pipe. Through the protection of casing 6, the life of seal structure has been prolonged greatly.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
Claims (5)
1. Transformer substation overhead ground wire composite optical cable draws down structure, its characterized in that: including pipe (4), pipe (4) top is equipped with pillar head (5), pillar head (5) include casing (6), casing (6) top is opened has last patchhole (7) that insert the cable, the bottom of casing (6) is opened has lower patchhole (8) that insert pipe (4), be equipped with rubber block (9) in going up patchhole (7), it communicates with each other with lower patchhole (8) to go up patchhole (7), the opening of patchhole (8) is located the bottom of casing (6) down, be equipped with annular seal block (10) down in patchhole (8).
2. The substation overhead ground wire composite optical cable drop structure of claim 1, characterized in that: the rubber block (9) is provided with a first inner hole (12), and a plurality of first ring grooves (11) which are coaxial with the upper insertion hole (7) are arranged in the first inner hole (12).
3. The substation overhead ground wire composite optical cable drop structure of claim 1, characterized in that: the sealing block (10) is provided with a second inner hole (13), and a plurality of second ring grooves (14) which are coaxial with the lower insertion hole (8) are formed in the second inner hole (13).
4. The substation overhead ground wire composite optical cable drop structure of claim 3, wherein: the outer surface of the sealing block (10) is also provided with a plurality of third ring grooves (15).
5. The substation overhead ground wire composite optical cable drop structure of claim 4, wherein: the number of the third ring grooves (15) is equal to that of the second ring grooves (14), and the third ring grooves (15) and the second ring grooves (14) are not located on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110936392.2A CN113820804A (en) | 2021-08-16 | 2021-08-16 | Transformer substation overhead ground wire composite optical cable down-leading structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110936392.2A CN113820804A (en) | 2021-08-16 | 2021-08-16 | Transformer substation overhead ground wire composite optical cable down-leading structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113820804A true CN113820804A (en) | 2021-12-21 |
Family
ID=78922939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110936392.2A Pending CN113820804A (en) | 2021-08-16 | 2021-08-16 | Transformer substation overhead ground wire composite optical cable down-leading structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113820804A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203014331U (en) * | 2012-12-06 | 2013-06-19 | 国家电网公司 | Plugging device of down-lead cable |
| CN103928896A (en) * | 2014-04-27 | 2014-07-16 | 国家电网公司 | Method for preventing OPGW optical cable connected to substation structure from being broken by lightning strokes |
| CN205049795U (en) * | 2015-10-27 | 2016-02-24 | 国网浙江省电力公司丽水供电公司 | Integration optical cable draws device down in transformer substation |
| CN108710183A (en) * | 2018-05-20 | 2018-10-26 | 新能量科技股份有限公司 | A kind of open air ADSS optical cables installation plugging device |
| CN210954440U (en) * | 2019-12-16 | 2020-07-07 | 国网北京市电力公司 | Plugging device of transformer substation's guide pillar and guide optical cable |
-
2021
- 2021-08-16 CN CN202110936392.2A patent/CN113820804A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203014331U (en) * | 2012-12-06 | 2013-06-19 | 国家电网公司 | Plugging device of down-lead cable |
| CN103928896A (en) * | 2014-04-27 | 2014-07-16 | 国家电网公司 | Method for preventing OPGW optical cable connected to substation structure from being broken by lightning strokes |
| CN205049795U (en) * | 2015-10-27 | 2016-02-24 | 国网浙江省电力公司丽水供电公司 | Integration optical cable draws device down in transformer substation |
| CN108710183A (en) * | 2018-05-20 | 2018-10-26 | 新能量科技股份有限公司 | A kind of open air ADSS optical cables installation plugging device |
| CN210954440U (en) * | 2019-12-16 | 2020-07-07 | 国网北京市电力公司 | Plugging device of transformer substation's guide pillar and guide optical cable |
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