CN111381331A - Optical cable branch joint box and installation method thereof - Google Patents
Optical cable branch joint box and installation method thereof Download PDFInfo
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- CN111381331A CN111381331A CN201811638668.3A CN201811638668A CN111381331A CN 111381331 A CN111381331 A CN 111381331A CN 201811638668 A CN201811638668 A CN 201811638668A CN 111381331 A CN111381331 A CN 111381331A
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- cone
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- injection molding
- cylinder body
- optical cable
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- 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
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
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- 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
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4453—Cassettes
- G02B6/4454—Cassettes with splices
-
- 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
- G02B6/4457—Bobbins; Reels
Abstract
The invention provides an optical cable branch joint box and an installation method thereof, which are applied to the continuation of a deep sea optical cable communication system, wherein the optical cable branch joint box comprises a fixing unit, a plurality of cone units and an injection molding unit, the fixing unit comprises an inner cylinder, a fiber coiling disc and end covers, the inner cylinder is sleeved outside the fiber coiling disc, the end covers are respectively arranged at two ends of the inner cylinder, the cone units are installed in the corresponding end covers and are connected with the fiber coiling disc, and the fixing unit and the cone units are arranged in the injection molding unit and are attached to the inner cavity of the injection molding unit. The optical cable branch joint box provided by the invention is convenient to manufacture, reduces the use cost, is safe and reliable, and can meet the use requirement in a deep sea environment. The installation method provided by the invention is simple to operate and convenient to install.
Description
Technical Field
The invention relates to the field of submarine communication and data transmission of deep sea optical cables, in particular to an optical cable branch joint box and an installation method thereof.
Background
In recent years, the national information industry is gradually moving from shallow sea to deep sea, and with the progress of the marine optical cable technology and the consideration of construction cost, the connection from the trunk line to the branch multi-point line network terminal is gradually becoming the main mode, and the mechanical branch joint box is only suitable for the shallow sea area at present, so that the branch joint box which not only meets the original functions, but also meets the application requirements of deep sea is required to be developed. At present, no unit mass production branch exists in China, and similar products in foreign countries have complex structure and function and put high requirements on operators. The cable branch joint box is suitable for a deep sea cable joint with the water depth of 5000m, the sealing performance requirement and the reliability requirement are higher, so that the original cable branch joint box cannot meet the branch connection of a deep sea cable, and the cable branch joint box is provided to complete the branch connection of the deep sea cable. The sealing mode and the inner component of the joint box in the prior art are complex, and the joint operation difficulty is high due to the problem of rubber failure of mechanical sealing in the prior art.
Disclosure of Invention
In view of the above, it is desirable to provide an optical cable branch connection box and an installation method thereof, which are convenient to manufacture, simple to operate, safe and reliable, and can be used in deep sea environment.
The utility model provides an optical cable branch joint box for continuation of optical cable among deep sea communication system, optical cable branch joint box includes fixed unit, a plurality of cone unit, the unit of moulding plastics, fixed unit includes interior barrel, the fine dish of dish and end cover, interior barrel cover is established the fine dish of dish is outside, just the end cover sets up respectively interior barrel both ends, the cone unit is installed in the end cover that corresponds, and be connected in the fine dish of dish, fixed unit with the cone unit sets up in the unit of moulding plastics, and the laminating the unit inner chamber setting of moulding plastics.
Furthermore, the end cover comprises an extension part and a body which are integrally connected, the extension part and the body are respectively provided with a first inner cavity and a second inner cavity along the axial direction, the first inner cavity and the second inner cavity are generally cylindrical, the diameter of the first inner cavity is smaller than that of the second inner cavity, and the first inner cavity and the second inner cavity are used for accommodating the cone unit.
Furthermore, one end of the body, which is far away from the extension portion, is radially provided with a first annular groove, the first annular groove is accommodated at one end of the inner cylinder, the bottom wall of the first annular groove is provided with a second annular groove, a sealing element is arranged on the second annular groove, and two ends of the inner cylinder are respectively accommodated in the first annular grooves of the corresponding end covers.
Further, the plurality of cone units are divided into a plurality of input cone units and a plurality of output cone units which are respectively used for inputting and outputting the optical cable, and the plurality of cone units penetrate through the end cover and are respectively connected to two sides of the fiber coiling disc.
Furthermore, the cone unit comprises an outer cone shaft and an inner cone shaft, the outer cone shaft is sleeved outside the inner cone shaft, an inner thread is arranged on the inner wall of one end, close to the end cover, of the outer cone shaft, an outer thread is arranged on the outer wall of one end, close to the end cover, of the inner cone shaft, and the outer cone shaft and the inner cone shaft are fastened through threads.
Furthermore, the cone unit further comprises a cone sealing piece, the cone sealing piece is arranged at one end, far away from the end cover, of the outer cone, one end of the cone sealing piece is embedded into the insulating layer or the inner protection layer of the optical cable, and the other end of the cone sealing piece is axially contracted and connected with the inner cavity of the outer cone shaft in a buckling mode.
Further, the cone unit further comprises a lead pad, a pressing block, an optical fiber guide sleeve and a steel pipe clamp, one end, close to the fiber coiling disc, of the outer cone shaft is generally a boss, the boss abuts against a step portion formed by the first inner cavity and the second inner cavity, an inner hole groove larger than the optical cable is formed in one end, close to the end cover, of the boss in the axial direction, the lead pad and the optical fiber guide pipe are arranged in the inner hole groove, and the optical fiber guide pipe penetrates through the inner hole groove and the pressing block and is clamped tightly through the steel pipe clamp.
Furthermore, the injection unit is of a closed structure and comprises an outer cylinder body and an end injection body, and the outer cylinder body and the end injection body are used for sleeving the fixing unit and the cone unit to realize sealing of the fixing unit and the cone unit.
Furthermore, the outer cylinder is a hollow cylinder in general, the inner diameter of the outer cylinder is slightly smaller than the outer diameter of the inner cylinder, the outer cylinder is made of PE materials, and the outer cylinder is sleeved outside the inner cylinder through the elasticity of the PE materials.
Furthermore, the fiber coiling disc is of an H-shaped structure, two ends of the fiber coiling disc are fixed with the end covers through screws and sealing rings, and a heat insulation plate is installed at the bottom of the fiber coiling disc.
The invention provides an installation method of an optical cable branch joint box, which comprises the following steps:
s1, assembling the cone units, and connecting the input/output optical cables to one of the cone units respectively;
s2, coating the optical fiber of the input/output optical cable while welding, and fixing the welded optical fiber on the heat insulation board of the fiber coiling disc;
s3, connecting two ends of the fiber coiling disc with end covers at two ends through a screw rod and a sealing ring, simultaneously pressing the end covers and the inner cylinder body tightly, fixing the middle part through a sealing element, and fixedly sealing the end covers at two ends through a long screw rod and a sealing ring;
s4, assembling an outer cylinder body, wherein the outer cylinder body is made of PE materials and is sleeved outside the inner cylinder body by the PE materials;
and S5, performing injection molding on the outer side of the whole body consisting of the fixing unit, the cone unit and the outer cylinder body through an injection mold to form a sealed whole body.
Further, the S1 specifically includes: stripping an inner sheath or an insulating layer of the optical cable for a fixed length, sequentially separating armored steel wires according to the original twisting sequence, cleaning, loading one end of the cone sealing piece into the insulating layer or the inner sheath, screwing the inner cone shaft into the outer cone shaft, penetrating the optical fiber through the inner cone shaft, reserving proper extra length, subtracting the extra length from the inner steel wire, uniformly distributing the extra length between the inner cone shaft and the outer cone shaft, performing three-section compaction through a crimping machine, positioning the other end of the cone sealing piece in a hole at the end part of the outer cone shaft, compacting through the crimping machine, sequentially connecting and fixing a lead pad, a pressing block and a steel pipe clamp with the outer cone shaft, placing the outer cone shaft into an end cover reserved position, installing a heat insulation board on a fiber coiling disc, and then connecting the installed cone with the fiber coiling disc by screws.
Further, the S5 provides an injection mold, including:
(1) opening the injection mold, putting the whole body consisting of the fixing unit, the cone unit and the outer cylinder body into the injection mold, connecting a cooling water device and a heater control circuit, and starting heating;
(2) opening the cooling water tank, starting cooling water at two ends of the injection mold, and opening the cooling water in the middle part when the injection mold is heated to a set temperature;
(3) placing the injection molding material into a hopper, starting an injection molding machine, turning on a heating power supply of a split flow die, cooling the hopper while heating, presetting a heating temperature, and starting the injection molding machine to extrude the material;
(4) connecting an injection molding machine and an injection mold, adjusting the flow rate of cooling water of a cooling water tank to the middle part of the injection mold, starting the injection molding machine to inject an injection molding material into a mold cavity until the injection molding material flows out of a flash port, closing the flash port, continuously extruding the material, maintaining pressure, and separating the injection molding machine from the injection mold after the pressure maintaining is finished;
(5) after cooling, opening the injection mold, cutting off the umbilical cords of the injection mold and the injection molding machine and the umbilical cord of the flash port, taking out the injection molding body, putting the injection molding body into an X-ray flaw detector, and checking the injection molding defects;
(6) and after the injection molding is finished, completing armor recovery or oversheath recovery according to the outer layer protection structure of the optical cable.
Compared with the prior art, optical cable branch splice box includes fixed unit, a plurality of cone unit, the unit of moulding plastics, fixed unit includes interior barrel, fine dish of dish and end cover, interior barrel cover is established the fine dish of dish is outside, just the end cover sets up respectively interior barrel both ends, the cone unit is installed in the end cover that corresponds, and be connected in the fine dish of dish, fixed unit with the cone unit sets up in the unit of moulding plastics, and the laminating the unit inner chamber of moulding plastics sets up. The optical cable branch joint box provided by the invention is convenient to manufacture, reduces the use cost, is safe and reliable, and can meet the use requirement in a deep sea environment. The installation method provided by the invention is simple to operate and convenient to install.
Drawings
Fig. 1 is a schematic structural view of a cable breakout enclosure according to an embodiment of the present invention.
Fig. 2 is a partial schematic view of a cable breakout enclosure according to one embodiment of the present invention.
Description of the main elements
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, the cable breakout enclosure 100 is used for connecting and extending a cable 101 in a deep sea cable communication system and protecting a continuous portion of the cable 101. The optical cable branch joint box 100 comprises a fixing unit 10, a plurality of cone units 20 and an injection molding unit 30, wherein the cone units 20 are arranged in the fixing unit 10 and located at two ends of the fixing unit 10, the fixing unit 10 and the cone units 20 are arranged in the injection molding unit 30 and attached to an inner cavity of the injection molding unit 30. The injection unit 30 is used to achieve further sealing and improve the mechanical properties of the cable breakout enclosure 100.
The fixing unit 10 includes an inner cylinder 11, a fiber coiling disc 12 and an end cap 13 for sealing the connection of the optical cable 101. The inner cylinder 11 is a hollow cylinder, is sleeved outside the fiber coiling disc 12, and the end covers 13 are respectively arranged at two ends of the inner cylinder 11. The fiber coiling disc 12 is of an H-shaped structure, two ends of the fiber coiling disc are fixed with the end cover 13 through screws and sealing rings, and the bottom of the fiber coiling disc 12 is provided with a heat insulation plate 121.
The end cap 13 includes an extension portion 131 and a body 132 integrally connected, and the extension portion 131 and the body 132 are respectively provided with a first inner cavity 1311 and a second inner cavity 1321 along an axial direction for accommodating the cone unit 20. The first lumen 1311 and the second lumen 1321 are generally cylindrical, and the first lumen 1311 has a diameter that is smaller than a diameter of the second lumen 1321. The extension 131 is a substantially hollow circular truncated cone, and a diameter of the extension 131 near the end of the body 132 is larger than a diameter of the extension 131 far from the body 132. The body 132 is a cylinder, and a first annular groove 1322 is radially formed at an end of the body 132 away from the extending portion 131, the first annular groove 1322 forms a step portion at an end of the body 132, and the first annular groove 1322 receives an end of the inner cylinder 11. A second annular groove 1323 is formed in the bottom wall of the first annular groove 1322, a sealing member 133 is disposed on the second annular groove 1323, and in the present embodiment, the sealing member 133 is a copper sealing ring. Two ends of the inner cylinder 11 are respectively received in the first ring slots 1322 of the end caps 13. The two end covers 13 are locked by long screws and sealing rings which are axially arranged on the two end covers 13, so that the inner cylinder body 11 is tightly connected with the end covers 13.
The plurality of cone units 20 are divided into a plurality of input cone units 21 and a plurality of output cone units 22, which are respectively used for input and output of the optical cable 101, and the input cone units 21 and the output cone units 22 have the same structure. In the present embodiment, the number of the input cone units 21 is 1, and the number of the output cone units 22 is 2. The plurality of cone units 20 penetrate through the end cover 13 and are respectively connected to two sides of the fiber coiling disc 12.
The cone unit 20 comprises an outer cone shaft 23, an inner cone shaft 24, a cone sealing element 25, a lead pad 26, a pressing block 27, an optical fiber guide sleeve 28 and a steel pipe clamp 29, wherein the outer cone shaft 23 is sleeved outside the inner cone shaft 24, an inner thread is arranged on the inner wall of one end, close to the end cover 13, of the outer cone shaft 23, an outer thread is arranged on the outer wall of one end, close to the end cover 13, of the inner cone shaft 24, and the outer cone shaft 23 is fastened with the inner cone shaft 24 through threads. The cone sealing element 25 is a hollow cylinder structure, and is arranged at one end of the outer cone shaft 23 far away from the end cover 13, one end of the cone sealing element 25 is embedded into the insulating layer or the inner protective layer of the optical cable 101, and the other end is contracted along the axial direction to be connected with the inner cavity of the outer cone shaft 23 in a buckling manner. The outer cone 23 is a combined hollow cylinder, and a boss 231 is formed near one end of the fiber coiling disc 12, and the boss 231 is abutted against the step formed by the first inner cavity 1311 and the second inner cavity 1321. The end of the boss 231 near the end cap 13 is axially provided with an inner hole 2311 larger than the optical cable 101, the lead pad 26 is substantially in a circular ring structure, and the lead pad 26 and the optical fiber guide sleeve 28 are disposed in the inner hole 2311. The steel clamp 29 is a generally cylindrical body that is initially axially slotted, and the fiber guide sleeve 28 passes through the internal slot 2311 and the press block 27 and is clamped by the steel clamp 29. The pressing block 27 and the steel pipe clamp 29 are disposed in the second inner cavity 1321, and the steel pipe clamp 29 is substantially a cylinder and is fastened to the outer conical shaft 23 through a screw and a sealing ring. The fiber guide sleeve 28 axially passes through the press block 27 and the steel pipe clamp 29.
The injection unit 30 is of a closed structure and is generally a cylinder, and the injection unit 30 includes an outer cylinder 32 and an end injection body 33, and is used for sleeving the fixing unit 10 and the cone unit 20 to seal the fixing unit 10 and the cone unit 20. The outer cylinder 32 is a hollow cylinder with an inner diameter slightly smaller than the outer diameter of the inner cylinder 11 and is made of PE. The outer cylinder 32 is sleeved outside the inner cylinder 11 by means of elasticity of a PE material, the end injection molding body 33 is also made of the PE material, injection molding is carried out through an injection mold (not shown), and a sealed whole is formed by heating and the outer cylinder 32.
The invention provides an installation method of an optical cable branch joint box 100, which specifically comprises the following steps:
s1, assembling the cone units, and respectively connecting the input/output optical cables to one of the cone units, specifically: stripping an inner sheath or an insulating layer of the optical cable for a fixed length, sequentially separating armored steel wires according to the original twisting sequence, cleaning, loading one end of the cone sealing piece into the insulating layer or the inner sheath, screwing the inner cone shaft into the outer cone shaft, penetrating the optical fiber through the inner cone shaft, reserving proper extra length, subtracting the extra length from the inner steel wire, uniformly distributing the extra length between the inner cone shaft and the outer cone shaft, performing three-section compaction through a crimping machine, positioning the other end of the cone sealing piece in a hole at the end part of the outer cone shaft, compacting through the crimping machine, sequentially connecting and fixing a lead pad, a pressing block and a steel pipe clamp with the outer cone shaft, placing the outer cone shaft into an end cover reserved position, installing a heat insulation board on a fiber coiling disc, and then connecting the installed cone with the fiber coiling disc by screws.
S2, coating the optical fiber of the input/output optical cable while welding, and fixing the welded optical fiber on the heat insulation board of the fiber coiling disc;
s3, connecting two ends of the fiber coiling disc with end covers at two ends through a screw rod and a sealing ring, simultaneously pressing the end covers and the inner cylinder body tightly, fixing the middle part through a sealing element, and fixedly sealing the two end covers through a long screw rod and a sealing ring;
s4, assembling an outer cylinder body, wherein the outer cylinder body is made of PE materials and is sleeved outside the inner cylinder body by the PE materials;
s5, the whole outside that fixed unit, cone unit and outer barrel are constituteed is moulded plastics through injection mold, forms sealed whole, specifically is:
1) opening the injection mold, putting the whole body consisting of the fixing unit, the cone unit and the outer cylinder body into the injection mold, connecting a cooling water device and a heater control circuit, and starting heating;
(2) opening the cooling water tank, starting cooling water at two ends of the injection mold, and opening the cooling water in the middle part when the injection mold is heated to a set temperature;
(3) placing the injection molding material into a hopper, starting an injection molding machine, turning on a heating power supply of a split flow die, cooling the hopper while heating, presetting a heating temperature, and starting the injection molding machine to extrude the material;
(4) connecting an injection molding machine and an injection mold, adjusting the flow rate of cooling water of a cooling water tank to the middle part of the injection mold, starting the injection molding machine to inject an injection molding material into a mold cavity until the injection molding material flows out of a flash port, closing the flash port, continuously extruding the material, maintaining pressure, and separating the injection molding machine from the injection mold after the pressure maintaining is finished;
(5) after cooling, opening the injection mold, cutting off the umbilical cords of the injection mold and the injection molding machine and the umbilical cord of the flash port, taking out the injection molding body, putting the injection molding body into an X-ray flaw detector, and checking the injection molding defects;
(6) and after the injection molding is finished, completing armor recovery or oversheath recovery according to the outer layer protection structure of the optical cable.
The optical cable branch joint box provided by the invention is convenient to manufacture, reduces the use cost, is safe and reliable, and can meet the use requirement in a deep sea environment. The installation method provided by the invention is simple to operate and convenient to install.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.
Claims (13)
1. A cable breakout enclosure for a continuation of optical cables in deep sea communication systems, comprising: optical cable branch splice box includes fixed unit, a plurality of cone units, the unit of moulding plastics, fixed unit includes interior barrel, the fine dish of dish and end cover, interior barrel cover is established the fine dish of dish is outside, just the end cover sets up respectively interior barrel both ends, the cone unit is installed in the end cover that corresponds, and be connected to the fine dish of dish, fixed unit with the cone unit sets up in the unit of moulding plastics, and the laminating the unit inner chamber setting of moulding plastics.
2. The cable breakout enclosure of claim 1, wherein: the end cover comprises an extension part and a body which are integrally connected, wherein a first inner cavity and a second inner cavity are respectively formed in the extension part and the body along the axial direction, the first inner cavity and the second inner cavity are generally cylindrical, the diameter of the first inner cavity is smaller than that of the second inner cavity, and the first inner cavity and the second inner cavity are used for accommodating the cone unit.
3. The cable breakout enclosure of claim 2, wherein: the end, far away from the extension portion, of the body is radially provided with a first annular groove, the first annular groove is accommodated at one end of the inner cylinder, the bottom wall of the first annular groove is provided with a second annular groove, a sealing element is arranged on the second annular groove, and two ends of the inner cylinder are respectively accommodated in the corresponding first annular grooves of the end covers.
4. The cable breakout enclosure of claim 3, wherein: the cone units are divided into a plurality of input cone units and a plurality of output cone units which are respectively used for inputting and outputting the optical cable, and the cone units penetrate through the end cover and are respectively connected to two sides of the fiber coiling disc.
5. The cable breakout enclosure of claim 4, wherein: the cone unit comprises an outer cone shaft and an inner cone shaft, the outer cone shaft is sleeved outside the inner cone shaft, an internal thread is arranged on the inner wall of one end, close to the end cover, of the outer cone shaft, an external thread is arranged on the outer wall of one end, close to the end cover, of the inner cone shaft, and the outer cone shaft and the inner cone shaft are fastened through threads.
6. The cable breakout enclosure of claim 5, wherein: the cone unit further comprises a cone sealing piece, the cone sealing piece is arranged at one end, far away from the end cover, of the outer cone, one end of the cone sealing piece is embedded into the insulating layer or the inner protection layer of the optical cable, and the other end of the cone sealing piece is axially contracted and connected with the inner cavity of the outer cone shaft in a buckling mode.
7. The cable breakout enclosure of claim 6, wherein: the cone unit further comprises a lead pad, a pressing block, an optical fiber guide sleeve and a steel pipe clamp, one end, close to the fiber coiling disc, of the outer cone shaft is generally a boss, the boss abuts against a step portion formed by the first inner cavity and the second inner cavity, one end, close to the end cover, of the boss is provided with an inner hole groove larger than the optical cable in the axial direction, the lead pad and the optical fiber guide pipe are arranged in the inner hole groove, and the optical fiber guide pipe penetrates through the inner hole groove and the pressing block and is clamped through the steel pipe clamp.
8. The cable breakout enclosure of claim 1, wherein: the injection molding unit is of a closed structure, comprises an outer cylinder body and an end injection molding body and is used for sleeving the fixing unit and the cone unit to realize sealing of the fixing unit and the cone unit.
9. The cable breakout enclosure of claim 8, wherein: the outer cylinder body is a hollow cylinder in general, the inner diameter of the outer cylinder body is smaller than the outer diameter of the inner cylinder body, the outer cylinder body is made of PE materials, and the outer cylinder body is sleeved outside the inner cylinder body through the elasticity of the PE materials.
10. The cable breakout enclosure of claim 1, wherein: the fiber coiling disc is of an H-shaped structure, two ends of the fiber coiling disc are fixed with the end covers through screws and sealing rings, and a heat insulation plate is installed at the bottom of the fiber coiling disc.
11. A method of installing a cable breakout enclosure, comprising a cable breakout enclosure according to any one of claims 1-10, wherein: the installation method of the optical cable branch joint box comprises the following steps:
s1, assembling the cone units, and connecting the input/output optical cables to one of the cone units respectively;
s2, coating the optical fiber of the input/output optical cable while welding, and fixing the welded optical fiber on the heat insulation board of the fiber coiling disc;
s3, connecting two ends of the fiber coiling disc with end covers at two ends through a screw rod and a sealing ring, simultaneously pressing the end covers and the inner cylinder body tightly, fixing the middle part through a sealing element, and fixedly sealing the end covers at two ends through a long screw rod and a sealing ring;
s4, assembling an outer cylinder body, wherein the outer cylinder body is made of PE materials and is sleeved outside the inner cylinder body by the PE materials;
and S5, performing injection molding on the outer side of the whole body consisting of the fixing unit, the cone unit and the outer cylinder body through an injection mold to form a sealed whole body.
12. The method of installing a cable breakout enclosure of claim 11, wherein: the S1 specifically includes: stripping an inner sheath or an insulating layer of the optical cable for a fixed length, sequentially separating armored steel wires according to the original twisting sequence, cleaning, loading one end of the cone sealing piece into the insulating layer or the inner sheath, screwing the inner cone shaft into the outer cone shaft, penetrating the optical fiber through the inner cone shaft, reserving proper extra length, subtracting the extra length from the inner steel wire, uniformly distributing the extra length between the inner cone shaft and the outer cone shaft, performing three-section compaction through a crimping machine, positioning the other end of the cone sealing piece in a hole at the end part of the outer cone shaft, compacting through the crimping machine, sequentially connecting and fixing a lead pad, a pressing block and a steel pipe clamp with the outer cone shaft, placing the outer cone shaft into an end cover reserved position, installing a heat insulation board on a fiber coiling disc, and then connecting the installed cone with the fiber coiling disc by screws.
13. The method of installing a cable breakout enclosure of claim 11, wherein: the S5 provides an injection mold, including:
(1) opening the injection mold, putting the whole body consisting of the fixing unit, the cone unit and the outer cylinder body into the injection mold, connecting a cooling water device and a heater control circuit, and starting heating;
(2) opening the cooling water tank, starting cooling water at two ends of the injection mold, and opening the cooling water in the middle part when the injection mold is heated to a set temperature;
(3) placing the injection molding material into a hopper, starting an injection molding machine, turning on a heating power supply of a split flow die, cooling the hopper while heating, presetting a heating temperature, and starting the injection molding machine to extrude the material;
(4) connecting an injection molding machine and an injection mold, adjusting the flow rate of cooling water of a cooling water tank to the middle part of the injection mold, starting the injection molding machine to inject an injection molding material into a mold cavity until the injection molding material flows out of a flash port, closing the flash port, continuously extruding the material, maintaining pressure, and separating the injection molding machine from the injection mold after the pressure maintaining is finished;
(5) after cooling, opening the injection mold, cutting off the umbilical cords of the injection mold and the injection molding machine and the umbilical cord of the flash port, taking out the injection molding body, putting the injection molding body into an X-ray flaw detector, and checking the injection molding defects;
(6) and after the injection molding is finished, completing armor recovery or oversheath recovery according to the outer layer protection structure of the optical cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811638668.3A CN111381331A (en) | 2018-12-29 | 2018-12-29 | Optical cable branch joint box and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811638668.3A CN111381331A (en) | 2018-12-29 | 2018-12-29 | Optical cable branch joint box and installation method thereof |
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| CN111381331A true CN111381331A (en) | 2020-07-07 |
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| CN201811638668.3A Pending CN111381331A (en) | 2018-12-29 | 2018-12-29 | Optical cable branch joint box and installation method thereof |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4753500A (en) * | 1981-06-05 | 1988-06-28 | Les Cables De Lyon | Joining two optical fiber submarine cable ends |
| EP0393495A1 (en) * | 1989-04-20 | 1990-10-24 | PIRELLI CAVI S.p.A. | Covering for cable joints, elements of a device for realizing cable joints and cable joint comprising said covering |
| US6028974A (en) * | 1998-08-10 | 2000-02-22 | Alcatel | Seal for underwater cable joint |
| US20050074219A1 (en) * | 2003-10-03 | 2005-04-07 | Avanex Corporation | Optical modules employing glass-sealed fiber feedthru with C-seal |
| CN1790078A (en) * | 2005-12-27 | 2006-06-21 | 江苏中天科技股份有限公司 | Seabed optical cable branch joint box and connection process thereof |
| CN101158740A (en) * | 2007-11-15 | 2008-04-09 | 江苏中天科技股份有限公司 | Deep sea optical cable coupling box and connecting process thereof |
| CN201408279Y (en) * | 2009-03-24 | 2010-02-17 | 中航光电科技股份有限公司 | Cable connector |
| CN104216081A (en) * | 2014-09-22 | 2014-12-17 | 中天科技海缆有限公司 | Deep-sea optical cable extrusion molding branch joint box and mounting process thereof |
| CN205809370U (en) * | 2016-06-24 | 2016-12-14 | 浙江融汇通信设备有限公司 | A kind of single-ended cable splice closure |
| CN106873100A (en) * | 2015-12-10 | 2017-06-20 | 中国科学院沈阳自动化研究所 | A kind of underwater optical cable wall-through sealing structure |
-
2018
- 2018-12-29 CN CN201811638668.3A patent/CN111381331A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4753500A (en) * | 1981-06-05 | 1988-06-28 | Les Cables De Lyon | Joining two optical fiber submarine cable ends |
| EP0393495A1 (en) * | 1989-04-20 | 1990-10-24 | PIRELLI CAVI S.p.A. | Covering for cable joints, elements of a device for realizing cable joints and cable joint comprising said covering |
| US6028974A (en) * | 1998-08-10 | 2000-02-22 | Alcatel | Seal for underwater cable joint |
| US20050074219A1 (en) * | 2003-10-03 | 2005-04-07 | Avanex Corporation | Optical modules employing glass-sealed fiber feedthru with C-seal |
| CN1790078A (en) * | 2005-12-27 | 2006-06-21 | 江苏中天科技股份有限公司 | Seabed optical cable branch joint box and connection process thereof |
| CN101158740A (en) * | 2007-11-15 | 2008-04-09 | 江苏中天科技股份有限公司 | Deep sea optical cable coupling box and connecting process thereof |
| CN201408279Y (en) * | 2009-03-24 | 2010-02-17 | 中航光电科技股份有限公司 | Cable connector |
| CN104216081A (en) * | 2014-09-22 | 2014-12-17 | 中天科技海缆有限公司 | Deep-sea optical cable extrusion molding branch joint box and mounting process thereof |
| CN106873100A (en) * | 2015-12-10 | 2017-06-20 | 中国科学院沈阳自动化研究所 | A kind of underwater optical cable wall-through sealing structure |
| CN205809370U (en) * | 2016-06-24 | 2016-12-14 | 浙江融汇通信设备有限公司 | A kind of single-ended cable splice closure |
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Application publication date: 20200707 |