CN217133431U - A splice box for submarine communication system - Google Patents
A splice box for submarine communication system Download PDFInfo
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- CN217133431U CN217133431U CN202122948198.4U CN202122948198U CN217133431U CN 217133431 U CN217133431 U CN 217133431U CN 202122948198 U CN202122948198 U CN 202122948198U CN 217133431 U CN217133431 U CN 217133431U
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Abstract
A joint box for a submarine communication system belongs to the technical field of submarine optical cable communication systems. The method comprises the following steps: the cylinder body is of a hollow cylindrical structure; two buffers are arranged and are respectively and fixedly connected with two ends of the cylinder body; the optical fiber storage tray is positioned in the barrel and used for coiling optical fibers after optical fiber fusion; the two wedge pieces are arranged and are respectively arranged at two ends of the inner cavity of the cylinder body; the external compression structure is matched with the outer conical surface of the wedge to compress the submarine cable armor layer penetrating through the buffer; and the internal compression structure is matched with the inner end face of the wedge to compress the armored submarine cable. The utility model can realize the mechanical, photoelectric transmission and sealed insulation connection of the submarine optical cable, and meet the requirement of line connection of the telecommunication system; meanwhile, when the submarine optical cable is accidentally damaged and cannot be used for communication, the connector box can also be used for maintaining submarine lines, and when special requirements exist, the optical amplification module can be configured in the connector box, so that repeater-free long-length communication transmission is realized.
Description
Technical Field
The utility model relates to a joint box for submarine communication system belongs to sea optical cable communication system technical field.
Background
The splice closure is a device used more in the submarine optical fiber communication system, and the splice closure is a joint for connecting two sections of optical fiber cables through a special structural member. Splice closures are commonly used in the construction and repair of undersea optical fiber cable communication systems by connecting the undersea cables together to form a complete system. Due to the particularity of the subsea environment, the ocean construction costs are high, and the joint box is generally required to have a working life of 25 years. In order to meet the use requirement of 25 years, the joint box needs to consider the design of high water pressure resistance, hydrogen sealing, small volume, convenient laying and the like.
At present, most of splice closures at home and abroad have the characteristics of higher cost, higher requirement on splicing environment, long splicing time and certain limitation condition on cable types, such as an international UQJ splice closure, and the splice closure can be used only when the submarine cables at two ends are both the submarine cables certified by UQJ.
Because the submarine joint box is in direct contact with seawater and bears increased tensile force in the construction process, the joint box needs to meet the requirements of water tightness, air tightness, corrosion resistance, high mechanical strength and the like, and simultaneously needs to meet the requirements of armored fastening steel wires, waterproof sealing insulation, optical fiber connection point storage protection, optical cable bending buffer and maximum overall dimension of a connected submarine optical cable, and simultaneously needs to be matched with common construction equipment and the production cost needs to be considered.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned background art, provide a low cost, to butt joint submarine cable type do not have the requirement, have good sealing performance's a splice box for shallow sea seabed optical cable line.
In order to achieve the technical purpose, the utility model discloses a following technical scheme realizes:
a closure for a subsea communication system, comprising:
the cylinder body is of a hollow cylindrical structure;
two buffers are arranged and are respectively and fixedly connected with two ends of the cylinder body;
the optical fiber storage tray is positioned in the barrel and used for coiling optical fibers after optical fiber fusion;
the two wedge pieces are arranged and are respectively arranged at two ends of the inner cavity of the cylinder body;
the external compression structure is matched with the outer conical surface of the wedge to compress the submarine cable armor layer penetrating through the buffer;
and the internal compression structure is matched with the inner end face of the wedge to compress the armored submarine cable.
In the above scheme, the buffer has a conical structure, and the internal thread of the buffer is screwed on the external thread of the cylinder and fixed by the pin, so that the buffer and the cylinder are prevented from falling off. The O-shaped sealing ring is arranged in the excircle sealing groove of the wedge and connected with the pressure-resistant cylinder body to play a watertight role. The end part thread of the inner cavity of the cylinder body is screwed with a limit ring to limit the wedge-shaped piece. The anti-compression barrel and the buffers at two ends form an external protection component, and the internal and external compression structures are respectively matched with the internal conical surface and the external conical surface of the wedge to compress and fix the armored steel wire and the internal structure of the submarine cable.
Wherein, outside compact structure includes:
the inner chuck is of a hollow structure and is provided with an inner conical surface and an outer conical surface, the inner conical surface of the inner chuck is matched with the outer conical surface of the wedge piece to compress an inner layer of the armor steel wire, an inner spacing ring for compressing the steel wire is arranged between the inner chuck and the wedge piece, and the inner chuck and the wedge piece are connected through a screw to apply a certain pretightening force;
the outer chuck is of a hollow structure and is provided with an inner conical surface, the inner conical surface of the outer chuck is matched with the outer conical surface of the inner chuck to compress the outer layer of the armored steel wire, and an outer spacing ring for compressing the steel wire is arranged between the outer chuck and the inner chuck; the outer end face of the outer chuck is matched with the limiting structure corresponding to the inner cavity of the buffer to be fixed.
In the scheme, the inner spacer ring is sleeved on the outer conical surface of the wedge piece, so that the inner steel wires are uniformly distributed on the outer conical surface of the wedge piece, the inner chuck is sleeved in the wedge piece, the steel wires are compressed to enable the steel wires to be deformed and stressed uniformly, and the inner chuck and the wedge piece are connected together through the screw to prevent falling. The outer spacer ring is sleeved on the outer conical surface of the inner chuck to enable the outer layer steel wire to deform and be stressed uniformly, then the outer chuck is sleeved, and the limiting structures of the inner chuck and the buffer are matched to fix the outer chuck. The above solution ensures that the mechanical properties thereof pass harsh mechanical vibration, shock tests and thus ensures long-term reliability of the wedge.
For different armored steel wires of the submarine cable, the O-shaped sealing ring, the inner chuck, the outer chuck, the inner spacer ring and the outer spacer ring are mutually matched and extruded to be connected with the cylinder body, so that watertight and tensile effects are achieved.
Wherein, inside compact structure includes:
the inner cone is provided with a through hole for the armored submarine cable to pass through; the inner cone is an elastic body and is provided with an outer conical surface, and the outer conical surface of the inner cone is matched with the conical hole of the inner end surface of the wedge and is used for compressing the armored submarine cable;
the pressing piece is provided with a through hole for the unarmored submarine cable to pass through; the pressing piece extrudes the inner cone body and is fixed on the inner end surface of the wedge piece through a screw;
compress tightly and set up the packing ring between the cone, the utility model discloses the technique is used when passing through metal seal, rubber seal (the packing ring includes interior packing ring, outer packing ring, and metal seal, rubber seal are opened to interior, outer packing ring), makes gas tightness and water proofness reach the reliability requirement.
The clamping sleeve sealing joint is connected with a sleeve of the armless submarine cable, and the end part of the clamping sleeve sealing joint is screwed in the threaded hole on the end face of the pressing part.
In the scheme, the inner cone is matched with the threaded hole in the inner end face of the wedge and is matched with a PE layer (unarmored submarine cable) of the submarine cable, the gasket is sequentially attached to the end face of the inner cone, the pressing piece presses the inner gasket, the outer gasket and the inner cone, the end face of the clamping sleeve sealing joint is matched with the threaded hole in the pressing piece, and the joint is connected with a submarine cable sleeve, so that the sealing effect is achieved.
Wherein the optical fiber storage tray includes:
the fiber blocking clamp is clamped on the tray to prevent the optical fiber from separating from the tray;
the tray is fixed with the end face of the wedge through a screw;
and the cover plate is arranged on the tray through screws to protect the optical fibers.
In the above scheme, a fiber storage area is arranged in the tray, the cover plate is connected with the tray through four screws, the tray is connected with the wedge through the screws, and the fiber blocking clamp is clamped on the tray. The whole fiber coiling disc is a whole, so that the integration difficulty is greatly reduced, and the integration time is shortened.
The utility model discloses use metal material as the main part, preferred duplex stainless steel is the main part, and duplex stainless steel yield strength is the twice of ordinary stainless steel, can material saving reduce cost, in addition, in the aspect of the anticorrosion, especially under marine environment, duplex stainless steel is obviously stronger than ordinary austenitic stainless steel. The duplex stainless steel material greatly improves the integral mechanical structure and seawater corrosion resistance of the submarine optical cable joint box, and the joint box has the advantages of reduced volume and weight.
The joint box of the utility model solves the problem of reliable connection between the joint box and the submarine optical cable armored steel wire through the double-layer steel wire compression structure of the wedge, the inner chuck and the outer chuck; according to the size of the connector of the armored steel wire of the submarine optical cable, the steel wire compression structure can enable the steel wire to be uniformly arranged around the wedge piece, and the steel wire is not overlapped.
The utility model discloses a joint box combines into an organic whole reliably through joint sealing technique be about to O type circle sealing technique, inside compact structure (packing ring, inner cone, cutting ferrule sealing joint) etc. guarantees the insulating seal of joint box reliably, satisfies the technical requirement of joint box to insulation resistance and withstand voltage intensity under setting for water pressure.
The utility model can realize the mechanical, photoelectric transmission and sealed insulation connection of the submarine optical cable, and meet the requirement of line connection of the telecommunication system; meanwhile, when the submarine optical cable is accidentally damaged and cannot be used for communication, the connector box can also be used for maintaining submarine lines, and when special requirements exist, the optical amplification module can be configured in the connector box, so that repeater-free long-length communication transmission is realized. The utility model discloses splice box user equipment flexibility is high, for current splice box, greatly simplifies, greatly reduces the cost of transportation, and the commonality is higher, only needs the butt joint that individual structure size just can realize the optical cable of change, and does not have specific requirement to the cable type.
Drawings
The invention is further explained below with reference to the drawings:
FIG. 1 is an overall structure diagram of the present invention;
FIG. 2 is a sectional view of the whole structure of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic structural view of the optical fiber storage tray of the present invention;
in the figure: barrel 1, buffer 2, pin 3, compressing part 4, wedge 5, O type sealing washer 6, interior chuck 7, outer chuck 8, screw 9, tray 10, armless submarine cable 11, inner cone 12, packing ring 13, buffer's fibrous structure 14, screw 15, spacing ring 16, submarine cable's fiber casing 17, front cutting ferrule 18, back cutting ferrule 19, keep off fine clamp 20, outer spacer ring 21, sealing washer 22, interior spacer ring 23, screw 24, optical fiber protection cover plate 25.
Detailed Description
Example 1
A splice enclosure for a subsea communication system, comprising:
a cylinder 1 having a hollow cylindrical structure;
two buffers 2 which are respectively and fixedly connected with two ends of the cylinder body;
the optical fiber storage tray is used for coiling the optical fibers after the optical fibers are welded and is positioned in the barrel;
the two wedge pieces 5 are respectively arranged at the two ends of the inner cavity of the cylinder body;
the external compression structure is matched with the outer conical surface of the wedge to compress the submarine cable armor layer penetrating through the buffer;
and the internal compression structure is matched with the inner end face of the wedge to compress the armored submarine cable.
Specifically, the buffer has a conical structure, and the internal thread of the buffer is screwed on the external thread of the cylinder and is fixed by the pin 3 to prevent the buffer from falling off from the cylinder 1. The O-shaped sealing ring 6 is arranged in the excircle sealing groove of the wedge and connected with the pressure-resistant cylinder body to play a watertight role.
The limiting ring 16 is screwed at the end part of the inner cavity of the barrel body so as to limit the wedge-shaped piece. The anti-compression barrel and the buffers at the two ends form an external protection component, and the internal and external compression structures are respectively matched with the internal conical surface and the external conical surface of the wedge to compress and fix the armored steel wire and the internal structure of the submarine cable.
Example 2
On the basis of embodiment 1, the external compression structure includes:
the inner chuck 7 is of a hollow structure and is provided with an inner conical surface and an outer conical surface (anti-skid threads can be selectively arranged on the conical surfaces), the inner conical surface of the inner chuck is matched with the outer conical surface of the wedge piece 5 to press the inner layer of the armored steel wire, an inner spacing ring 23 for pressing the steel wire is arranged between the inner chuck and the wedge piece, and the inner chuck is connected with the wedge piece through a screw to apply a certain pretightening force; the inner spacer ring is sleeved on the outer conical surface of the wedge piece, so that the inner steel wires are uniformly distributed on the outer conical surface of the wedge piece, the inner chuck is sleeved, the steel wires are compressed to enable the steel wires to be deformed and stressed uniformly, and the inner chuck and the wedge piece are connected together through a screw 9 to prevent falling off.
The outer chuck 8 is of a hollow structure and is provided with an inner conical surface, the inner conical surface of the outer chuck is matched with the outer conical surface of the inner chuck to compress the outer layer of the armored steel wire, and an outer spacing ring 21 for compressing the steel wire is arranged between the outer chuck and the inner chuck; the outer end face of the outer chuck is matched with a limiting structure 14 corresponding to the inner cavity of the buffer for fixing. The outer spacer ring is sleeved on the outer conical surface of the inner chuck to enable the outer layer steel wire to deform and be stressed uniformly, then the outer chuck is sleeved, and the limiting structures of the inner chuck and the buffer are matched to fix the outer chuck.
The above solution ensures that the mechanical properties thereof pass harsh mechanical vibration, shock tests and thus ensures long-term reliability of the wedge.
For different armored steel wires of the submarine cable, the O-shaped sealing ring, the inner chuck, the outer chuck, the inner spacer ring and the outer spacer ring are mutually matched and extruded to be connected with the cylinder body, so that watertight and tensile effects are achieved.
Example 3
On the basis of embodiment 1 or 2, the internal compression structure includes:
an inner cone 12 having a through hole for passing the armored submarine cable 11; the inner cone is an elastic body and is provided with an outer conical surface, and the outer conical surface of the inner cone is matched with the conical hole of the inner end surface of the wedge and is used for compressing the armored submarine cable;
a pressing member 4 having a through hole through which an unarmored submarine cable passes; the pressing piece extrudes the inner cone body and is fixed on the inner end surface of the wedge piece through a screw;
a washer 13 is arranged between the pressing piece and the inner cone, and a sealing ring 22 is arranged between the pressing piece and the wedge. The gasket comprises an inner gasket and an outer gasket, wherein the inner gasket and the outer gasket are respectively provided with a metal sealing ring and a rubber sealing ring, so that the air tightness and the water tightness meet the reliability requirement.
Cutting ferrule sealing joint is connected with sleeve pipe 17 of no armoured submarine cable, includes:
the rear clamping sleeve 19 is used for clamping the unarmored submarine cable and is screwed in a threaded hole in the end face of the clamping piece 4;
and the front clamping sleeve 18 is used for compressing a copper layer and an optical fiber stainless steel tube of the armored submarine cable and is screwed in the threaded hole of the rear clamping sleeve.
The inner cone is matched with the threaded hole in the inner end face of the wedge and is matched with a PE layer (armored submarine cable) of the submarine cable, the gasket is sequentially attached to the end face of the inner cone, the pressing piece presses the inner gasket, the outer gasket, the inner cone and the sealing ring tightly, the clamping sleeve seals the end face of the connector and is matched with the threaded hole in the inner end face of the pressing piece, and the connector is connected with a submarine cable sleeve, so that the sealing effect is achieved.
Example 4
As shown in fig. 4, the optical fiber storage tray includes:
a fiber blocking clip 20 clamped on the tray to prevent the optical fiber from separating from the tray; the tray 10 is fixed with the end face of the wedge through a screw 15; and a cover plate 25 attached to the tray by screws 24 to protect the optical fibers.
The optical fiber protection tray is internally provided with a fiber storage area, the cover plate is connected with the tray through four screws, the tray is connected with the wedge through the screws, and the fiber blocking clamp is clamped on the tray. The whole fiber coiling disc is a whole, so that the integration difficulty is greatly reduced, and the integration time is shortened.
Claims (7)
1. A connector box for a subsea communication system, characterized in that the host material is duplex stainless steel, comprising:
the cylinder is of a hollow cylindrical structure;
two buffers are arranged and are respectively and fixedly connected with two ends of the cylinder body;
the optical fiber storage tray is positioned in the barrel and used for coiling optical fibers after optical fiber fusion;
the two wedge pieces are arranged and are respectively arranged at two ends of the inner cavity of the cylinder body;
the external compression structure is matched with the outer conical surface of the wedge to compress the submarine cable armor layer penetrating through the buffer;
the internal compression structure is matched with the inner end face of the wedge to compress the armless submarine cable;
the internal compression structure includes:
the inner cone is provided with a through hole for the armored submarine cable to pass through; the inner cone is an elastic body and is provided with an outer conical surface, and the outer conical surface of the inner cone is matched with the conical hole of the inner end surface of the wedge and is used for compressing the armored submarine cable;
the pressing piece is provided with a through hole for the armored submarine cable to pass through; the pressing piece extrudes the inner cone body and is fixed on the inner end surface of the wedge piece through a screw; a gasket is arranged between the pressing piece and the inner cone, and a sealing ring is arranged between the pressing piece and the wedge; the gasket comprises an inner gasket and an outer gasket, and the inner gasket and the outer gasket respectively adopt a metal sealing ring and a rubber sealing ring;
cutting ferrule sealing joint, with the bushing connection of no armor sea cable, include:
the rear clamping sleeve is used for clamping the unarmored submarine cable and is screwed in a threaded hole in the end face of the clamping part in a threaded manner;
the front clamping sleeve is used for pressing a copper layer and an optical fiber stainless steel tube of the armored submarine cable, and is screwed in a threaded hole of the rear clamping sleeve;
the optical fiber storage tray includes:
two symmetrically arranged trays fixed with the end faces of the wedges through screws;
the plurality of fiber blocking clamps are clamped on the tray to prevent the optical fibers from being separated from the tray;
two symmetrically arranged cover plates are mounted on the tray through screws to protect the optical fibers.
2. A closure for a subsea communication system according to claim 1, wherein said outer hold-down structure comprises:
the inner chuck is of a hollow structure and is provided with an inner conical surface and an outer conical surface, and the inner conical surface of the inner chuck is matched with the outer conical surface of the wedge to compress the inner layer of the armored steel wire;
the outer chuck is of a hollow structure and is provided with an inner conical surface, and the inner conical surface of the outer chuck is matched with the outer conical surface of the inner chuck to compress the outer layer of the armored steel wire.
3. A connector box for a subsea communication system according to claim 2, wherein an inner spacer ring for compressing the wire is provided between said inner collet and said wedge;
an outer spacer ring used for compressing the steel wire is arranged between the outer chuck and the inner chuck.
4. A connector block for a subsea communication system according to claim 3, wherein said inner collet is secured to said wedge by a screw connection;
the outer end face of the outer chuck is matched with the limiting structure corresponding to the inner cavity of the buffer to be fixed.
5. A closure for a subsea communication system according to claim 1, wherein an O-ring seal is provided between the outer wall of the wedge and the inner wall of the barrel.
6. A connector box for a subsea communication system according to claim 5, wherein a stop ring is threaded onto the end of the interior chamber of the housing to stop the wedge.
7. A connector box for a subsea communication system according to claim 1, wherein said buffer has a tapered configuration and is threaded behind the outer wall of the housing and secured thereto by a pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122948198.4U CN217133431U (en) | 2021-11-29 | 2021-11-29 | A splice box for submarine communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122948198.4U CN217133431U (en) | 2021-11-29 | 2021-11-29 | A splice box for submarine communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217133431U true CN217133431U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122948198.4U Active CN217133431U (en) | 2021-11-29 | 2021-11-29 | A splice box for submarine communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217133431U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115407469A (en) * | 2022-08-31 | 2022-11-29 | 中航宝胜海洋工程电缆有限公司 | Bipolar cable joint box |
| CN117092770A (en) * | 2023-10-18 | 2023-11-21 | 江苏亨通海洋光网系统有限公司 | Bipolar submarine optical cable joint box |
-
2021
- 2021-11-29 CN CN202122948198.4U patent/CN217133431U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115407469A (en) * | 2022-08-31 | 2022-11-29 | 中航宝胜海洋工程电缆有限公司 | Bipolar cable joint box |
| CN117092770A (en) * | 2023-10-18 | 2023-11-21 | 江苏亨通海洋光网系统有限公司 | Bipolar submarine optical cable joint box |
| CN117092770B (en) * | 2023-10-18 | 2023-12-22 | 江苏亨通海洋光网系统有限公司 | Bipolar submarine optical cable joint box |
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