Broken fiber connecting device of submarine optical cable end

Abstract

The utility model relates to the technical field of submarine optical cable protection devices, and provides a broken fiber connecting device of a submarine optical cable end, which comprises an array section joint and a protection sleeve. The array section joint comprises a branch steel wire inner taper sleeve and a connector; the branch steel wire inner taper sleeve is used for sequentially fixing a plurality of exposed steel wires after the outer skin of the submarine optical cable is stripped, one end of the connector is hermetically sleeved on the branch steel wire inner taper sleeve, and the other end is hermetically sleeved on the part of the submarine optical cable without stripping the outer skin; the first end of the protective sleeve is detachably connected to the connector in a sleeving mode, and the second end of the protective sleeve is connected with the other array section connector or plug. According to the utility model, the tensile strength and the compressive strength of the submarine optical cable end are improved, the waterproof function is realized, and the whole connecting device is small in size, convenient to disassemble and assemble and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine optical cable protection devices, in particular to a broken fiber connecting device for a submarine optical cable end. Background Art

[0002] Optical fiber is a fiber made of glass or plastic that can be used as a light transmission tool. Due to the characteristics of light transmission in optical fiber such as fast speed, low loss, and large transmission volume, optical fiber is widely used in various industries, especially long-distance information transmission, where optical fiber plays an irreplaceable role.

[0003] Submarine optical cables are optical fibers used in marine products. When submarine optical cables are accidentally damaged and break, it is necessary to protect the bare fibers, reconnect the fibers, or seal the fibers so that they can work stably for a long time. Currently, the fiber break at the end of the submarine optical cable is usually connected using an optical cable splice box, which has the problems of large size, inconvenient disassembly and assembly, and complicated operation. Utility Model Content

[0004] The utility model provides a fiber-breaking connecting device for the end of a submarine optical cable, which is used to solve the problems of large volume, inconvenient disassembly and assembly, and complicated operation of the connecting device in the prior art.

[0005] The utility model provides a fiber-breaking connection device for the end of a submarine optical cable, comprising: an array segment joint and a protective sleeve;

[0006] The array segment joint comprises: a steel wire inner cone sleeve and a connector;

[0007] The steel wire inner cone sleeve is used to sequentially fix the multiple steel wires exposed after the submarine optical cable is stripped of its outer skin; one end of the connector is sealed in the steel wire inner cone sleeve, and the other end is sealed and connected to the portion of the submarine optical cable that has not been stripped of its outer skin;

[0008] The first end of the protective sleeve is detachably sleeved on the connector, and the second end of the protective sleeve is connected to another array segment connector or plug.

[0009] According to a fiber-broken connection device for a submarine optical cable end provided by the utility model, the array segment joint further comprises: a sealing nut;

[0010] The sealing nut is inserted into the connecting head and is threadedly connected to the inner wall of the connecting head.

[0011] According to a fiber-broken connection device for a submarine optical cable end provided by the utility model, the array segment joint further comprises: a conical sealing pad and a first gasket;

[0012] The conical sealing gasket is arranged on a side of the sealing nut close to the inner conical sleeve of the divided steel wire, and the first gasket is clamped between the sealing nut and the conical sealing gasket.

[0013] According to the broken fiber connection device of the submarine optical cable end provided by the utility model, the array segment joint also includes: a pressed inner cone sleeve nut;

[0014] One end of the pressed inner cone sleeve nut is abutted against the divided steel wire inner cone sleeve, and the pressed inner cone sleeve nut is inserted into the connecting head and is threadedly connected with the inner wall of the connecting head.

[0015] According to a fiber-broken connection device for a submarine optical cable end provided by the utility model, the array segment joint further comprises: a second gasket;

[0016] The second gasket is arranged between the pressed inner cone sleeve nut and the divided steel wire inner cone sleeve.

[0017] According to a fiber-broken connection device for a submarine optical cable end provided by the utility model, the array segment joint further comprises: a sleeve;

[0018] The sleeve is sleeved and fixed on the first end of the connector.

[0019] According to a fiber-broken connection device for a submarine optical cable end provided by the utility model, the array segment joint further comprises: a buckling ring;

[0020] The pressing ring presses the sleeve tightly against the outer wall of the connector.

[0021] According to the utility model, a fiber-broken connection device for a submarine optical cable end also includes: a first sealing ring;

[0022] The first sealing ring is sandwiched between the outer wall of the connecting head and the inner wall of the protective sleeve.

[0023] According to a fiber-broken connection device for a submarine optical cable end provided by the utility model, the protective sleeve comprises a cylinder body and a sealing cover;

[0024] One end of the cylinder is sleeved on the array segment joint, and the other end of the cylinder is sleeved on another array segment joint or the plug;

[0025] The sealing cover is detachably connected to the cylinder.

[0026] According to a fiber-broken connection device for a submarine optical cable end provided by the utility model, the plug comprises: a body and an end cover;

[0027] The first end of the body is connected to the end of the protective sleeve, and the end cover is disposed on the second end of the body.

[0028] The broken fiber connecting device for the end of a submarine optical cable provided by the utility model can connect the end of the submarine optical cable with a broken fiber to the first end of the array segment joint by arranging an array segment joint and a protective sleeve, and connect the protective sleeve to the second end of the array segment joint. When the submarine optical cable needs to be spliced, another array segment joint is connected to the second end of the protective sleeve, and the bare fiber is connected in the protective sleeve. Alternatively, when the end of the submarine optical cable needs to be processed, a plug is connected to the second end of the protective sleeve to seal the broken fiber, and a steel wire inner cone sleeve and a connector are arranged at the array segment joint. The steel wire inner cone sleeve is used to fix a plurality of steel wires exposed after the submarine optical cable is stripped of its outer skin, and the connector is used to fix and seal the submarine optical cable and the protective sleeve, thereby improving the tensile and compressive strength of the end of the submarine optical cable and having a waterproof function. The entire connecting device is small in size, convenient to disassemble and assemble, and highly reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a schematic diagram of the main structure of the fiber-cut connection device at the end of the submarine optical cable provided by the utility model;

[0031] Figure 2 The utility model provides Figure 1 AA section view;

[0032] Figure 3 This is a schematic diagram of the main structure of the array segment joint provided by the utility model;

[0033] Figure 4 It is a left-side structural schematic diagram of the array segment joint provided by the utility model;

[0034] Figure 5 The utility model provides Figure 3 BB cross-sectional view;

[0035] Figure 6 This is a schematic diagram of the main structure of the inner cover provided by the utility model;

[0036] Figure 7 It is a schematic diagram of the main structure of the outer cover provided by the utility model;

[0037] Figure 8 This is a schematic diagram of the main structure of the plug provided by the utility model;

[0038] Fig. 9 It is a left-side structural schematic diagram of the plug provided by the utility model.

[0039] Reference numerals:

[0040] 1. Connecting device;

[0041] 11. Array segment joint; 111. Tapered sleeve of steel wire; 112. Connector; 113. Sealing nut; 114. Conical sealing pad; 115. First gasket; 116. Pressed inner taper sleeve nut; 117. Second gasket; 118. Casing; 119. Pressing ring;

[0042] 12. Protective sleeve; 121. Cylinder body; 122. Sealing cover; 1221. Inner cover; 1222. Outer cover;

[0043] 13. Plug; 131. Body; 132. End cap;

[0044] 14. The first sealing ring;

[0045] 2. Submarine optical cable; 21. Steel wire; 22. Outer sheath; 23. Optical fiber. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] Combine the following Figures 1 to 9 The fiber-breaking connection device for the end of a submarine optical cable provided by an embodiment of the utility model is described in detail through specific embodiments and application scenarios.

[0048] In some embodiments, Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, this embodiment provides a fiber-broken connection device 1 for an end of a submarine optical cable, comprising: an array segment connector 11 and a protective sleeve 12 .

[0049] The array segment joint 11 comprises: a steel wire inner cone sleeve 111 and a connecting head 112 .

[0050] The wire inner cone sleeve 111 is used to sequentially fix the multiple steel wires 21 exposed after the outer sheath 22 of the submarine optical cable 2 is stripped off. One end of the connector 112 is sealed on the wire inner cone sleeve 111, and the other end is used to seal and connect to the portion of the submarine optical cable 2 where the outer sheath 22 is not stripped off.

[0051] The first end of the protective sleeve 12 is detachably sleeved on the connector 112 , and the second end of the protective sleeve 12 is connected to another array segment connector 11 or the plug 13 .

[0052] It is understandable that, for the submarine optical cable 2 after the fiber is broken, it is necessary to connect the end of the submarine optical cable 2 to the array segment connector 11, and install a protective sleeve 12 at the second end of the array segment connector 11 to protect the bare fiber. When the broken fiber needs to be spliced, another array segment connector 11 is installed on the second end of the protective sleeve 12, and the broken fiber is spliced ​​in the protective sleeve 12 to continue the broken fiber. When the broken fiber needs to be sealed at the end, a plug 13 is installed on the second end of the protective sleeve 12 to make an end treatment to seal the broken fiber.

[0053] The submarine optical cable 2 is usually composed of a steel wire 21, an optical fiber 23, a steel pipe and an outer sheath 22. A steel wire 21 is provided on the central axis of the submarine optical cable 2, and a plurality of optical fibers 23 are distributed along the circumference of the submarine optical cable 2. A steel pipe is provided on the outer wall of each optical fiber 23. Steel wires 21 are also arranged at positions where no optical fiber 23 is provided in the circumference of the submarine optical cable 2. An outer sheath 22 is installed on the outer side of the submarine optical cable 2. The outer sheath 22 of this embodiment is a plastic sheath.

[0054] The steel wire inner cone sleeve 111 is a conical sleeve structure with a circular hole in the center for passing the steel wire 21 on the central axis of the submarine optical cable 2. The peripheral wall of the steel wire inner cone sleeve 111 is provided with grooves for fixing the circumferentially arranged steel wires 21 of the submarine optical cable 2. The steel wires 21 of the submarine optical cable 2 are cut off at the end face of the steel wire inner cone sleeve 111 to avoid affecting the connection of the bare fiber in the protective sleeve 12. The small head of the conical surface of the steel wire inner cone sleeve 111 faces the first end of the connector 112, and the large head of the conical surface faces the second end of the connector 112, so that the steel wires 21 distributed around the submarine optical cable 2 can be fixed in a scattered state, which is beneficial to the cutting operation of the end face of the steel wire 21.

[0055] Optionally, a stainless steel wire inner cone sleeve may be used to provide a reliable connection for the submarine optical cable 2 and have good sealing performance and load-bearing capacity.

[0056] The connector 112 is used to connect the submarine optical cable 2 and the protective sleeve 12. The first end of the connector 112 is fixedly sealed to the submarine optical cable 2, and the second end of the connector 112 is fixedly sealed to the protective sleeve 12. The internal through hole of the connector 112 provides an installation position for the steel wire inner cone sleeve 111, provides space for the passage of the submarine optical cable 2, provides sufficient tensile and compressive strength for the outer wall of the submarine optical cable 2, and can also be sealed and waterproof.

[0057] Optionally, a titanium alloy connector may be used, which has high strength, light weight, excellent corrosion resistance and high temperature resistance, is beneficial to the protection of the connection part of the submarine optical cable 2, and has strong tensile and compressive resistance.

[0058] Specifically, the second end of the connector 112 and the first end of the protective sleeve 12 may be connected by a fastener or by a clamping member.

[0059] The fiber-broken connecting device 1 of the end of the submarine optical cable provided by the utility model can connect the end of the submarine optical cable 2 with a broken fiber to the first end of the array segment connector 11 by setting the array segment connector 11 and connect the protective sleeve 12 to the second end of the array segment connector 11. When the submarine optical cable 2 needs to be spliced, another array segment connector 11 is connected to the second end of the protective sleeve 12, and the bare fiber is connected in the protective sleeve 12. Alternatively, when the end of the submarine optical cable 2 needs to be processed, The second end of the protective sleeve 12 is connected to the plug 13 to seal the broken fiber, and a steel wire inner cone sleeve 111 and a connector 112 are provided at the array segment joint 11. The steel wire inner cone sleeve 111 is used to fix the multiple steel wires 21 exposed after the submarine optical cable 2 is stripped of its outer skin, and the connector 112 is used to fix and seal the submarine optical cable 2 and the protective sleeve 12, thereby improving the tensile and compressive strength of the end of the submarine optical cable 2 and having a waterproof function. The entire connecting device 1 is small in size, convenient to disassemble and assemble, and highly reliable.

[0060] In some embodiments, Figure 3 , Figure 4 and Figure 5 As shown, the array segment joint 11 of this embodiment further includes: a sealing nut 113.

[0061] The sealing nut 113 is inserted into the connector 112 and is threadedly connected to the inner wall of the connector 112 .

[0062] It can be understood that the sealing nut 113 is arranged at one end of the submarine optical cable 2 that passes through the connector 112, and the external thread of the sealing nut 113 is threadedly connected to the internal thread of the first end of the connector 112. After the submarine optical cable 2 is fixed, the sealing nut 113 can be tightened on the connector 112 to ensure the firmness of the fixation of the inserted section of the submarine optical cable 2 and to seal the outer wall of the submarine optical cable 2.

[0063] Optionally, the sealing nut 113 may be a stainless steel sealing nut, which is good for corrosion resistance and pressure resistance.

[0064] In some embodiments, Figure 3 , Figure 4 and Figure 5 As shown, the array segment joint 11 of this embodiment further includes: a conical sealing gasket 114 and a first gasket 115 .

[0065] The conical sealing gasket 114 is arranged on one side of the sealing nut 113 close to the inner conical sleeve 111 of the divided steel wire, and the first gasket 115 is sandwiched between the sealing nut 113 and the conical sealing gasket 114 .

[0066] It can be understood that the conical sealing gasket 114 is located between the steel wire inner cone sleeve 111 and the sealing nut 113, and the inner wall of the conical sealing gasket 114 abuts against the outer skin 22 of the submarine optical cable 2, which is used to further waterproof the first end of the connector 112. At the same time, the conical sealing gasket 114 is made of flexible material. The flexible contact between the conical sealing gasket 114 and the outer wall of the submarine optical cable 2 and the inner wall of the connector 112 can relieve the rigidity of the connector 112 and the sealing nut 113, which is beneficial to prolonging the life of the connecting device 1. The large end of the conical surface of the conical sealing gasket 114 faces the first end of the connector 112, and the small end of the conical surface faces the second end of the connector 112, which can generate pressure when the conical sealing gasket 114 is connected to the sealing nut 113 and the connector 112, thereby achieving sealing under higher pressure.

[0067] The first gasket 115 is arranged between the sealing nut 113 and the conical sealing gasket 114 to seal the outer skin 22 of the submarine optical cable 2. The first gasket 115 can be a metal gasket to provide mechanical support between the sealing nut 113 and the conical sealing gasket 114 and to withstand high temperature environments.

[0068] Optionally, the conical sealing gasket 114 may be a rubber gasket, and the first gasket 115 may be a stainless steel gasket.

[0069] In some embodiments, Figure 3 , Figure 4 and Figure 5 As shown, the array segment joint 11 of this embodiment also includes: a pressed inner cone sleeve nut 116.

[0070] One end of the pressed inner cone sleeve nut 116 is abutted against the divided steel wire inner cone sleeve 111 , and the pressed inner cone sleeve nut 116 is inserted into the connecting head 112 and is threadedly connected with the inner wall of the connecting head 112 .

[0071] It can be understood that the pressed inner cone sleeve nut 116 is used to fix the split wire inner cone sleeve 111 from the second end of the connecting head 112, so that the split wire inner cone sleeve 111 will not be detached from the second end of the connecting head 112, and it also plays a role in fixing the split wire inner cone sleeve 111, and the outer wall of the pressed inner cone sleeve nut 116 is threadedly connected to the inner wall of the second end of the connecting head 112, and the pressed inner cone sleeve nut 116 can be tightened to the second end of the connecting head 112, ensuring that the relative position of the split wire inner cone sleeve 111 and the connecting head 112 cannot be moved, and the threaded connection also facilitates the removal of the split wire inner cone sleeve 111 from the connecting head 112 at a later time.

[0072] Optionally, the pressed inner cone sleeve nut 116 may be a stainless steel nut.

[0073] In some embodiments, Figure 3 , Figure 4 and Figure 5 As shown, the array segment joint 11 of this embodiment further includes: a second gasket 117 .

[0074] The second gasket 117 is arranged between the pressed inner cone sleeve nut 116 and the divided steel wire inner cone sleeve 111 .

[0075] It is understandable that the second gasket 117 is used to seal the split wire inner cone sleeve 111 and the pressed inner cone sleeve nut 116 to ensure the tight connection between the split wire inner cone sleeve 111 and the pressed inner cone sleeve nut 116 .

[0076] Optionally, the second gasket 117 may be a stainless steel gasket.

[0077] In some embodiments, Figure 3 , Figure 4 and Figure 5 As shown, the array segment joint 11 of this embodiment also includes: a sleeve 118.

[0078] The sleeve 118 is sleeved and fixed on the first end of the connector 112 .

[0079] It is understandable that the sleeve 118 is used to protect the connector 112 and the sealing nut 113, which not only increases the tensile and compressive strength of the connector 112, but also further realizes a waterproof seal for the connector 112, and ensures the consistency of the appearance of the array segment joint 11 and the protective sleeve 12, and also facilitates the later removal of the array segment joint 11 from the protective sleeve 12. The operation of the array segment joint 11 only requires applying force to the sleeve 118, thereby ensuring the convenience of disassembly and assembly.

[0080] In practical applications, the sleeve 118 and the first end of the connector 112 are fixedly sealed, and the sleeve 118 and the connector 112 can be connected by threads or by locking members.

[0081] Optionally, the sleeve 118 may be a polyurethane tube.

[0082] In some embodiments, Figure 3 , Figure 4 and Figure 5 As shown, the array segment joint 11 of this embodiment further includes: a clamping ring 119.

[0083] The pressing ring 119 presses the sleeve 118 against the outer wall of the connector 112 .

[0084] It is understandable that the retaining ring 119 is ring-shaped, and the inner wall of the retaining ring 119 and the outer wall of the sleeve 118 are interference fit to ensure that the retaining ring 119 and the sleeve 118 are fixed and tightly sealed. In actual applications, a crimping machine can be used to crimp the retaining ring 119 onto the outer wall of the sleeve 118.

[0085] Optionally, the retaining ring 119 may be a stainless steel retaining ring.

[0086] In some embodiments, Figure 3 , Figure 4 and Figure 5 As shown, the fiber-broken connecting device 1 for the end of a submarine optical cable of this embodiment further includes: a first sealing ring 14 .

[0087] The first sealing ring 14 is sandwiched between the outer wall of the connector 112 and the inner wall of the protection sleeve 12 .

[0088] It is understandable that the first sealing ring 14 seals the gap between the connector 112 and the protective sleeve 12 to prevent seawater from penetrating into the connector 112 or the protective sleeve 12 through the gap to cause corrosion.

[0089] Optionally, the first sealing ring 14 may be an O-type rubber sealing ring, which has good elasticity, is resistant to high temperatures and corrosion, and has good sealing and durability.

[0090] In some examples, the present embodiment provides two first sealing rings 14 , and the two first sealing rings 14 are spaced apart at the second end of the connector 112 to perform double-layer sealing on the gap between the connector 112 and the protective sleeve 12 .

[0091] In some embodiments, Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the protective sleeve 12 of this embodiment includes a cylinder body 121 and a sealing cover 122 .

[0092] One end of the cylinder 121 is sleeved on the array segment joint 11 , and the other end of the cylinder 121 is sleeved on another array segment joint 11 or the plug 13 .

[0093] The sealing cover 122 is detachably connected to the cylinder body 121 .

[0094] It is understandable that when the broken fibers need to be spliced, both ends of the cylinder 121 are connected to the array segment joint 11. When the broken fibers need to be sealed at the end, the first end of the cylinder 121 is connected to the array segment joint 11, and the second end of the cylinder 121 is connected to the plug 13.

[0095] The peripheral wall of the barrel 121 of this embodiment is provided with an opening, and the inner cover 1221 and the outer cover 1222 are sequentially covered on the opening. The inner cover 1221 is provided with a long strip through hole, and a semicircular edge is provided on both sides of the through hole. The through hole is arranged opposite to the opening. The outer cover 1222 is in the shape of a strip plate, and four round holes are provided at the four corners of the inner cover 1221 and the outer cover 1222 in a one-to-one correspondence, which are used to use fasteners to fix the inner cover 1221 and the outer cover 1222 to the barrel 121. When splicing the broken fibers, the fasteners can be disassembled, the outer cover 1222 can be removed, and the optical fibers 23 at both ends can be spliced ​​through the through holes of the inner cover 1221. After the splicing work is completed, the outer cover 1222 is fixed to the inner cover 1221.

[0096] Specifically, two O-shaped rubber sealing rings are provided on the sealing cover 122 to seal the opening and the cylinder 121 .

[0097] In this embodiment, top screw holes are provided at both ends of the cylinder 121, and the top screw holes are evenly arranged along the circumference of the cylinder 121. Top screw holes are also provided on the peripheral wall of the array segment joint 11. The connection between the two ends of the cylinder 121 and the array segment joint 11 or the plug 13 is achieved by hexagon socket top screws.

[0098] In some embodiments, Figure 8 and Fig. 9 As shown, the plug 13 of this embodiment includes: a body 131 and an end cover 132 .

[0099] The first end of the body 131 is connected to the end of the protection sleeve 12 , and the end cover 132 is covered on the second end of the body 131 .

[0100] It can be understood that the body is used to connect the protective sleeve, and the end cap is used to perform end processing on the end of the connecting device.

[0101] In this embodiment, a jackscrew hole is provided on the peripheral wall of the plug 13, and the connection between the two ends of the cylinder 121 and the array segment joint 11 or the plug 13 is achieved by means of hexagon socket jackscrews.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A fiber-broken connection device for a submarine optical cable end, characterized in that: include: Array segment joints and protective sleeves; The array segment joint comprises: a steel wire inner cone sleeve and a connector; The steel wire inner cone sleeve is used to sequentially fix the multiple steel wires exposed after the submarine optical cable is stripped of its outer skin; one end of the connector is sealed in the steel wire inner cone sleeve, and the other end is sealed and connected to the portion of the submarine optical cable that has not been stripped of its outer skin; The first end of the protective sleeve is detachably sleeved on the connector, and the second end of the protective sleeve is connected to another array segment connector or plug.

2. The fiber-broken connection device for the end of a submarine optical cable according to claim 1, characterized in that: The array segment joint also includes: a sealing nut; The sealing nut is inserted into the connecting head and is threadedly connected to the inner wall of the connecting head.

3. The fiber-broken connection device for the end of a submarine optical cable according to claim 2, characterized in that: The array segment joint also includes: a conical sealing gasket and a first gasket; The conical sealing gasket is arranged on a side of the sealing nut close to the inner conical sleeve of the divided steel wire, and the first gasket is clamped between the sealing nut and the conical sealing gasket.

4. The fiber-broken connection device for the end of a submarine optical cable according to claim 1, characterized in that: The array segment joint also includes: a pressed inner cone sleeve nut; One end of the pressed inner cone sleeve nut is abutted against the divided steel wire inner cone sleeve, and the pressed inner cone sleeve nut is inserted into the connecting head and is threadedly connected with the inner wall of the connecting head.

5. The fiber-broken connection device for the end of a submarine optical cable according to claim 4, characterized in that: The array segment joint further includes: a second gasket; The second gasket is arranged between the pressed inner cone sleeve nut and the divided steel wire inner cone sleeve.

6. The fiber-broken connection device for the end of a submarine optical cable according to any one of claims 1 to 5, characterized in that: The array segment joint also includes: a sleeve; The sleeve is sleeved and fixed on the first end of the connector.

7. The fiber-broken connection device for the end of a submarine optical cable according to claim 6, characterized in that: The array segment joint also includes: a buckling ring; The pressing ring presses the sleeve tightly against the outer wall of the connector.

8. The fiber-broken connection device for the end of a submarine optical cable according to claim 1, characterized in that: Also includes: The first sealing ring; The first sealing ring is sandwiched between the outer wall of the connecting head and the inner wall of the protective sleeve.

9. The fiber-broken connection device for the end of a submarine optical cable according to claim 1, characterized in that: The protective sleeve comprises a cylinder body and a sealing cover; One end of the cylinder is sleeved on the array segment joint, and the other end of the cylinder is sleeved on another array segment joint or the plug; The sealing cover is detachably connected to the cylinder.

10. The fiber-broken connection device for the end of a submarine optical cable according to claim 1, characterized in that: The plug comprises: a body and an end cover; The first end of the body is connected to the end of the protective sleeve, and the end cover is disposed on the second end of the body.

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