CN214313717U - Intermediate joint for optical fiber composite cable - Google Patents
Intermediate joint for optical fiber composite cable Download PDFInfo
- Publication number
- CN214313717U CN214313717U CN202120592658.1U CN202120592658U CN214313717U CN 214313717 U CN214313717 U CN 214313717U CN 202120592658 U CN202120592658 U CN 202120592658U CN 214313717 U CN214313717 U CN 214313717U
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- cable
- optical fiber
- sheath
- box
- grounding
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 99
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 239000004020 conductor Substances 0.000 claims abstract description 45
- 239000000835 fiber Substances 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 description 13
- 238000012544 monitoring process Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an intermediate head for optical fiber composite cable belongs to cable technical field. The intermediate head includes box, cable coupling assembling and optic fibre coupling assembling. The box body comprises a box and a bottom plate. The cable connecting assembly comprises a U-shaped conductor, two sheaths and two cable guide pipes, one end of one sheath is sleeved on one vertical shaft of the U-shaped conductor, the other end of one sheath is sleeved on one end of one cable guide pipe, one end of the other sheath is sleeved on the other vertical shaft of the U-shaped conductor, the other end of the other sheath is sleeved on one end of the other cable guide pipe, and the other ends of the two cable guide pipes penetrate through the box. The fiber optic connection assembly includes an inner optical fiber and two grounding boxes. The utility model provides an intermediate head can realize the connection of optic fibre and cable in two fiber composite cable fast to can realize the on-line measuring of two fiber composite cable temperatures fast.
Description
Technical Field
The utility model belongs to the technical field of the cable, more specifically relates to an intermediate head for optical fiber composite cable.
Background
The power cable is gradually replacing an overhead line with the advantages that the power cable is not easily interfered by external environment, the space is saved and the power cable is relatively safe, and becomes the first choice for power transmission and distribution in urban areas. After the manufacturing is finished, the tray matching is carried out according to a certain length for the convenience of transportation and field laying. When the length of a single coil of the power cable does not meet the power supply length or the insulation of the power cable is damaged in use, an intermediate joint needs to be manufactured on the power cable so as to meet or restore the requirement of normal operation of a power supply system.
In the related art, an optical fiber with a temperature sensing function (which is considered as an optical fiber composite cable as a whole) is arranged inside or on an outer wall of a cable, and the optical fiber is tested at the tail end of the optical fiber composite cable through a host machine so as to perform online temperature monitoring on the cable. Due to various reasons such as defects, irregular field construction and the like in the manufacturing process, 80% to 90% of power cable line faults occur at the position of the intermediate joint, and the intermediate joint is the key monitoring position of the cable online monitoring system.
However, the conventional intermediate joint is connected by welding, which results in complicated connection of the optical fiber composite cable, long period and poor connection effect, and thus the temperature on-line detection of the optical fiber composite cable cannot be realized conveniently.
SUMMERY OF THE UTILITY MODEL
To the above defect or improvement demand of prior art, the utility model provides an intermediate head for compound fiber optic cable, its aim at can improve compound fiber optic cable's connection efficiency, solves the unable convenient technical problem who realizes compound fiber optic cable's temperature on-line measuring from this.
The utility model provides an intermediate joint for an optical fiber composite cable, which comprises a box body, a cable connecting component and an optical fiber connecting component;
the box body comprises a box and a bottom plate, the box body and the box are detachably connected together, and a cavity is formed between the box body and the box;
the cable connecting assembly comprises a U-shaped conductor, two sheaths and two cable guide pipes, wherein a transverse shaft of the U-shaped conductor is inserted into the bottom plate, the two sheaths and the two cable guide pipes are in one-to-one correspondence, one end of one sheath is sleeved on one vertical shaft of the U-shaped conductor, the other end of one sheath is sleeved on one end of one cable guide pipe, one end of the other sheath is sleeved on the other vertical shaft of the U-shaped conductor, the other end of the other sheath is sleeved on one end of the other cable guide pipe, and the other ends of the two cable guide pipes penetrate through the box;
the optical fiber connecting assembly comprises an inner optical fiber and two grounding boxes, wherein the inner optical fiber is positioned in the cavity, one end of the inner optical fiber is electrically connected with one grounding box, the inner optical fiber penetrates through each sheath, the other end of the inner optical fiber is electrically connected with the other grounding box, each grounding box is inserted into the bottom plate, each grounding box is provided with an optical fiber interface and a grounding conductor for connecting a cable, and the inner optical fiber is in contact with the outer wall of the grounding conductor.
Optionally, each of the sheaths is a three-way sleeve, for any one of the sheaths, the first through hole of the sheath is sleeved on a vertical shaft of the U-shaped conductor, the second through hole of the sheath is sleeved on one of the cable ducts, and a pressing cap is inserted into the third through hole of the sheath to connect the U-shaped conductor and the cable.
Optionally, a support tube is inserted into an outer wall of each sheath, an axis of each support tube is parallel to an axis of the corresponding second through hole, and the support tube of one sheath and the support tube of the other sheath abut against each other.
Optionally, one end of each support tube facing away from the corresponding sheath has a coaxially arranged flange, and the flange on one support tube and the flange on the other support tube abut together.
Optionally, the inner optical fiber passes through the jacket, the support tube and the flange in sequence.
Optionally, the optical fiber connection assembly further includes two routing conduits, and for any one of the routing conduits, one end of the routing conduit is inserted into one of the ground boxes, the other end of the routing conduit is inserted into one of the sheaths, one end of the internal optical fiber passes through one of the routing conduits, and the other end of the internal pipeline passes through the other routing conduit.
Optionally, the two routing conduits and the two ground wires correspond to each other one by one, and each ground wire passes through the corresponding routing conduit.
Optionally, each of the sheaths is an insulating structural member.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
to the utility model provides an intermediate head for compound fiber optic cable, when connecting two compound fiber optic cables (each compound fiber optic cable all includes cable and optic fibre): on the one hand, to the connection of two cables among the compound cable of connecting optic fibre, with two cables cartridge respectively in two cable guide for two cables are connected with the vertical axis of U-shaped conductor respectively, thereby realize two connections of connecting the compound cable of optic fibre fast through the U-shaped conductor, play the effect that switches on to the electric current, and can realize ground connection through earth box and earth conductor.
On the other hand, for the connection of the optical fibers in the two connecting optical fiber composite cables, one optical fiber is inserted into one optical fiber interface, and the other optical fiber is inserted into the other optical fiber connector, so that the connection of the two optical fibers is quickly realized under the connecting action of the internal optical fiber and the grounding box.
On the basis of connection of the two optical fibers and the two cables, because the optical fibers penetrate through the protective sleeve and are in contact with the outer wall of the grounding wire, the optical fibers are measured through the host, so that the temperature detection of the joint of the cables in the two optical fiber composite cables can be realized (mainly aiming at the problem that the cable generates heat due to poor contact of the joint of the two cables) and the temperature detection of the grounding wire can be realized (mainly aiming at the problem that the grounding wire generates heat due to short circuit of the cable).
That is to say, the utility model provides an intermediate head can realize the connection of optic fibre and cable in two fiber composite cable fast to can realize the on-line measuring of two fiber composite cable temperatures fast.
Drawings
Fig. 1 is a schematic structural diagram of an intermediate joint for an optical fiber composite cable according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a sheath according to an embodiment of the present invention.
The symbols in the drawings represent the following meanings:
1. a box body; 11. a box; 12. a base plate; 13. a cavity; 2. a cable connection assembly; 21. a U-shaped conductor; 22. a sheath; 221. a first through hole; 222. a second through hole; 223. a third through hole; 2231. pressing the cap; 224. supporting a tube; 2241. a flange; 23. a cable guide; 3. an optical fiber connection assembly; 31. an internal optical fiber; 32. a grounding box; 321. an optical fiber interface; 322. a ground lead; 33. routing a conduit; 100. a cable; 200. an optical fiber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic structural diagram of an intermediate joint for an optical fiber composite cable provided by an embodiment of the present invention, as shown in fig. 1, the intermediate joint includes a box 1, a cable connection assembly 2 and an optical fiber connection assembly 3.
The box body 1 comprises a box 11 and a bottom plate 12, the box body 1 and the bottom plate 12 are detachably connected together, and a cavity 13 is formed between the box body 1 and the bottom plate 12.
The cable connection assembly 2 comprises a U-shaped conductor 21, two sheaths 22 and two cable guide pipes 23, a transverse shaft of the U-shaped conductor 21 is inserted into the bottom plate 12, the two sheaths 22 and the two cable guide pipes 23 are in one-to-one correspondence, one end of one sheath 22 is sleeved on one vertical shaft of the U-shaped conductor 21, the other end of one sheath 22 is sleeved on one end of one cable guide pipe 23, one end of the other sheath 22 is sleeved on the other vertical shaft of the U-shaped conductor 21, the other end of the other sheath 22 is sleeved on one end of the other cable guide pipe 23, and the other ends of the two cable guide pipes 23 penetrate through the box 11.
The optical fiber connection assembly 3 comprises an inner optical fiber 31 and two grounding boxes 32, wherein the inner optical fiber 31 is positioned in the cavity 13, one end of the inner optical fiber 31 is electrically connected with one grounding box 32, the inner optical fiber 31 passes through each sheath 22, the other end of the inner optical fiber 31 is electrically connected with the other grounding box 32, the grounding box 32 is inserted into the bottom plate 12, each grounding box 32 is provided with an optical fiber interface 321 and a grounding conductor 322 for connecting the cable 100, and the inner optical fiber 31 is contacted with the outer wall of the grounding conductor 322.
To the utility model provides an intermediate head for compound fiber optic cable, when connecting two compound fiber optic cables (each compound fiber optic cable all includes cable 100 and optic fibre 200): on one hand, for the connection of the cables 100 in the two connecting optical fiber composite cables, the two cables 100 are respectively inserted into the two cable guide pipes 23, so that the two cables 100 are respectively connected with the vertical shafts of the U-shaped conductors 21, thereby quickly realizing the connection of the cables 100 in the two connecting optical fiber composite cables through the U-shaped conductors 21, conducting the current, and realizing the grounding through the grounding box 32 and the grounding wire 322.
On the other hand, for the connection of the optical fibers 200 in the two connecting optical fiber composite cables, one optical fiber 200 is inserted into one optical fiber interface 321, and the other optical fiber 200 is inserted into the other optical fiber 200 joint, so that the connection of the two optical fibers 200 is quickly realized under the connecting action of the internal optical fiber 31 and the grounding box 32.
On the basis that two optical fibers 200 and two cables 100 are connected, because the optical fibers 200 pass through the sheath 22 and are in contact with the outer wall of the grounding conductor 322, the host measures the optical fibers 200, so that not only can the temperature detection of the connection part of the cables 100 in the two optical fiber composite cables be realized (mainly aiming at the problem that the cable 100 generates heat due to poor contact of the connection part of the two cables 100), but also the temperature detection of the grounding conductor 322 can be realized (mainly aiming at the problem that the grounding conductor 322 generates heat due to short circuit of the cable 100).
That is to say, the utility model provides an intermediate head can realize two fiber optic compound cable well optic fibre 200 and cable 100's connection fast to can realize the on-line measuring of two fiber optic compound cable temperatures fast.
In this embodiment, the internal optical fiber 31 can pass through the grounding box 32 and then electrically connect with the optical fiber interface 321.
In this embodiment, the box 11 and the bottom plate 12 are bolted together, thereby facilitating installation and maintenance of the cable connection assembly 2 and the fiber connection assembly 3.
In addition, the bottom plate 12 has a groove therein, the U-shaped conductor 21 is inserted into the bottom plate 12 through the groove, and the U-shaped conductor 21 is fixed to the bottom plate 12 by bolts.
Fig. 2 is a schematic structural diagram of the sheath provided by the embodiment of the present invention, as shown in fig. 2, each sheath 22 is a three-way sleeve, for any one sheath 22, the first through hole 221 of the sheath 22 is sleeved on a vertical axis of the U-shaped conductor 21, the second through hole 222 of the sheath 22 is sleeved on a cable guide 23, and the third through hole 223 of the sheath 22 is inserted with a pressing cap 2231 to connect the U-shaped conductor 21 and the cable 100.
In the above embodiment, the press cap 2231 can achieve stable connection between the U-shaped conductor 21 and the cable 100, and prevent separation between the two.
In the present embodiment, each sheath 22 is an insulating structure, so that the cable 100 and the U-shaped conductor 21 can be insulated.
With continued reference to fig. 1, a support tube 224 is inserted into the outer wall of each sheath 22, the axis of each support tube 224 is parallel to the axis of the corresponding second through hole 222, and the support tube 224 of one sheath 22 abuts against the support tube 224 of the other sheath 22.
In the above embodiment, the support tube 224 can support the sheaths 22, so that the orientation between the two sheaths 22 is relatively stable, and the movement of the sheaths 22 is avoided, thereby avoiding poor contact between the press caps 2231 and the cable 100 and the U-shaped conductor 21.
In the present exemplary embodiment, the end of each support tube 224 facing away from the associated jacket 22 has a coaxially arranged flange 2241, the flange 2241 on one support tube 224 and the flange 2241 on the other support tube 224 abutting against one another.
In the above embodiment, the flange 2241 can increase the contact area between the support pipes 224, thereby achieving stable support of the jacket 22.
Illustratively, the inner optical fiber 31 passes through the jacket 22, the support tube 224, and the flange 2241 in that order.
In the above embodiment, the inner optical fiber 31 passes through the sheath 22, the support tube 224 and the flange 2241 in this order, and the protection and guidance of the inner optical fiber 31 can be achieved.
Illustratively, a plurality of through holes are provided in the jacket 22, so that the inner optical fibers 31 are inserted into the jacket 22 to connect the right and left optical fibers 200. In addition, the internal optical fiber 31 in the sheath 22 includes a transverse winding portion for mainly monitoring a temperature rise change due to partial discharge and a longitudinal winding portion for mainly detecting a temperature rise change due to crimp contact resistance.
It should be noted that, when the sheath 22 is produced, the winding density of the inner optical fiber 31 in the sheath 22 can be changed according to the monitoring requirement to change the number of temperature measuring points, but the minimum bending radius of the inner optical fiber 31 should be satisfied.
Optionally, the fiber optic connection assembly 3 further includes two routing conduits 33, and for any one routing conduit 33, one end of the routing conduit 33 is inserted into one ground box 32, the other end of the routing conduit 33 is inserted into one jacket 22, one end of the internal optical fiber 31 passes through one routing conduit 33, and the other end of the internal optical fiber 31 passes through the other routing conduit 33.
In the above embodiment, the routing guide 33 serves to protect and guide both ends of the internal optical fiber 31, and the routing guide 33 also serves to support the jacket 22.
In the present embodiment, two routing conduits 33 and two ground wires 322 correspond to each other, and each ground wire 322 passes through the corresponding routing conduit 33.
In the above embodiment, the routing conduit 33 also serves to protect and guide the ground wire 322.
In this embodiment, the internal optical fiber 31 is wound around the ground wire 322 for better temperature measurement.
It will be readily appreciated that one end of ground conductor 322 is connected to the armor layer of cable 100 and the other end of ground conductor 322 is connected to ground box 32, thereby providing a ground to cable 100.
In this implementation, the optical fiber 200 and the ground box 32 may be connected by a splice.
Generally, through the utility model discloses above technical scheme who conceives can gain following beneficial effect:
(1) the utility model discloses an integration of cable 100 butt joint and optic fibre 200 butt joint, such beneficial result is, can save space, be convenient for cable 100 regular patrolling and examining and the maintenance.
(2) The utility model discloses design inside optic fibre 31 on sheath 22, under the prerequisite of guaranteeing dielectric strength, the temperature monitoring's that improves as far as effect.
(3) The utility model discloses a dismantlement formula box 1, if certain part takes place to damage among the intermediate head then can realize the change of each part pertinence, saved the cost.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. An intermediate joint for an optical fiber composite cable is characterized by comprising a box body (1), a cable connecting assembly (2) and an optical fiber connecting assembly (3);
the box body (1) comprises a box (11) and a bottom plate (12), the box body (1) and the bottom plate (12) are detachably connected together, and a cavity (13) is formed between the box body (1) and the bottom plate (12);
the cable connecting assembly (2) comprises a U-shaped conductor (21), two sheaths (22) and two cable guide pipes (23), a transverse shaft of the U-shaped conductor (21) is inserted into the bottom plate (12), the two sheaths (22) correspond to the two cable guide pipes (23) one by one, one end of one sheath (22) is sleeved on one vertical shaft of the U-shaped conductor (21), the other end of one sheath (22) is sleeved on one end of one cable guide pipe (23), one end of the other sheath (22) is sleeved on the other vertical shaft of the U-shaped conductor (21), the other end of the other sheath (22) is sleeved on one end of the other cable guide pipe (23), and the other ends of the two cable guide pipes (23) penetrate through the box (11);
the optical fiber connecting assembly (3) comprises an inner optical fiber (31) and two grounding boxes (32) which are positioned in the cavity (13), one end of the inner optical fiber (31) is electrically connected with one grounding box (32), the inner optical fiber (31) passes through each sheath (22), the other end of the inner optical fiber (31) is electrically connected with the other grounding box (32), each grounding box (32) is inserted in the bottom plate (12), each grounding box (32) is provided with an optical fiber interface (321) and a grounding conductor (322) for connecting a cable (100), and the inner optical fiber (31) is in contact with the outer wall of the grounding conductor (322).
2. An intermediate joint for an optical fiber composite cable according to claim 1, wherein each of the sheaths (22) is a three-way sleeve, and for any one of the sheaths (22), the first through hole (221) of the sheath (22) is arranged to fit over a vertical axis of the U-shaped conductor (21), the second through hole (222) of the sheath (22) is arranged to fit over one of the cable guides (23), and the third through hole (223) of the sheath (22) is inserted with a pressing cap (2231) to connect the U-shaped conductor (21) and the cable (100).
3. An intermediate joint for optical fibre composite cables as claimed in claim 2, characterised in that a support tube (224) is inserted on the outer wall of each sheath (22), the axis of each support tube (224) being parallel to the axis of the corresponding second through hole (222), the support tube (224) of one sheath (22) and the support tube (224) of the other sheath (22) abutting together.
4. An intermediate joint for an optical fiber composite cable according to claim 3, characterized in that one end of each of the support tubes (224) facing away from the corresponding jacket (22) has a coaxially arranged flange (2241), the flange (2241) on one of the support tubes (224) and the flange (2241) on the other support tube (224) abutting together.
5. An intermediate joint for optical fibre composite cables as claimed in claim 4, characterised in that said internal optical fibre (31) passes through said sheath (22), said support tube (224) and said flange (2241) in sequence.
6. An intermediate joint for an optical fibre composite cable according to claim 1, wherein the optical fibre connection assembly (3) further comprises two routing conduits (33), one end of each of the routing conduits (33) being inserted into one of the grounding boxes (32), the other end of each of the routing conduits (33) being inserted into one of the sheaths (22), one end of the internal optical fibre (31) passing through one of the routing conduits (33), and the other end of the internal optical fibre (31) passing through the other routing conduit (33).
7. The intermediate joint for fiber optic composite cables of claim 6, wherein two of the routing conduits (33) and two of the ground conductors (322) are in one-to-one correspondence, each of the ground conductors (322) passing through a corresponding one of the routing conduits (33).
8. An intermediate joint for optical fibre composite cables as claimed in any one of claims 1 to 7, characterised in that each of the sheaths (22) is an insulating structural member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120592658.1U CN214313717U (en) | 2021-03-23 | 2021-03-23 | Intermediate joint for optical fiber composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120592658.1U CN214313717U (en) | 2021-03-23 | 2021-03-23 | Intermediate joint for optical fiber composite cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214313717U true CN214313717U (en) | 2021-09-28 |
Family
ID=77837158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120592658.1U Withdrawn - After Issue CN214313717U (en) | 2021-03-23 | 2021-03-23 | Intermediate joint for optical fiber composite cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214313717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886328A (en) * | 2021-03-23 | 2021-06-01 | 中铁第四勘察设计院集团有限公司 | Intermediate joint for optical fiber composite cable |
-
2021
- 2021-03-23 CN CN202120592658.1U patent/CN214313717U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886328A (en) * | 2021-03-23 | 2021-06-01 | 中铁第四勘察设计院集团有限公司 | Intermediate joint for optical fiber composite cable |
| CN112886328B (en) * | 2021-03-23 | 2024-05-17 | 中铁第四勘察设计院集团有限公司 | Intermediate connector for optical fiber composite cable |
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Granted publication date: 20210928 Effective date of abandoning: 20240517 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210928 Effective date of abandoning: 20240517 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |