Connecting device for quickly laying submarine optical cable

Abstract

The invention discloses a connecting device for quickly laying a submarine optical cable, which comprises two cylinder parts capable of being aligned and assembled, the open ports of the two cylinder parts are aligned and assembled and can be detachably installed and fixed through a fastener, and the connecting gap of the two cylinder parts is filled with a first waterproof sealing ring. One side of each of the two cylinders is provided with a holder, a submarine optical cable body is sleeved in the holder, one end of the submarine optical cable body is provided with an optical cable tail fiber extending into the corresponding transition connector, and a transition connector is installed between the two optical cable tail fibers at opposite positions. The connecting device for quickly laying the submarine optical cable is simple to install, free of special tools, high in mechanical strength, high in lateral pressure resistance and good in watertight performance, plays a good role in protecting the optical fiber connected in the middle, is quick to install on a construction site, and meets the special requirement of quick laying.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine optical cable connections, and in particular to a connection device for rapidly laying submarine optical cables. Background Art

[0002] Submarine optical cables, also known as submarine communication cables, are conductors wrapped in insulating materials and laid on the seabed for telecommunications transmission between countries. They are widely used in intercontinental communications because of their large information capacity, long transmission distance, strong anti-interference ability, good confidentiality, and low price. According to incomplete statistics, submarine optical cables carry about 99% of the world's intercontinental communication traffic and are the most important information carrier for contemporary international communications.

[0003] In recent years, with the dual increase in the scope of use and demand for use, the efficiency of laying and assembling submarine optical cables has been greatly tested. However, the connection device between two connected optical cables in the existing technology has a relatively complex structure and is difficult to assemble. At the same time, the tensile and compressive effects of the device itself are average. In the face of complex marine environments, there is still a defect of insufficient adaptability. In order to solve the problems existing in the above-mentioned existing technology, the applicant will provide a connection device for quickly laying submarine optical cables to solve the problem. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies of the prior art, the present invention provides a connection device for quickly laying submarine optical cables, which solves the problems raised in the above-mentioned background technology.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a connection device for rapidly deploying submarine optical cables, comprising two aligned and assembled cylindrical members, the open ends of the two cylindrical members being aligned and assembled and capable of being detachably fixed by fasteners, and a first waterproof sealing ring being filled in the connection gap between the two cylindrical members;

[0008] A clamp is installed on one side of each of the two cylindrical members, and a submarine optical cable body is sleeved in the clamp. One end of the submarine optical cable body is provided with an optical cable pigtail extending into the corresponding transition connector, and a transition connector is installed between the two optical cable pigtails in relative positions. A rubber sealing plug and a gasket are nested in the sleeve gap between the end of the submarine optical cable body and the clamp.

[0009] Preferably, the cylinder member includes a cylinder body and an end cover plate, the end cover plate is clamped in one side of the cylinder body, and a plurality of first screw holes are opened inside the end cover plate, and a plurality of first composite screws are installed in the side wall structure of one side of the cylinder body, and the first composite screws can be threadedly connected with the corresponding first screw holes.

[0010] A second waterproof sealing ring is sealed and filled in the sleeve gap between the cylinder and the end cover plate, and an assembly clearance groove is opened on one side wall of the cylinder.

[0011] Preferably, the fastener includes a bolt assembly and a reinforcement ring plate, the reinforcement ring plate is located between the two cylinders in the assembled position, the bolt assembly includes a bolt and a nut, one end of the bolt can sequentially penetrate the outer ring structure of the two cylinders and the reinforcement ring plate and then be threadedly connected to the nut, and the end face of the open port of the nut is fixed with a second linkage sealing ring that can be clamped with the bolt.

[0012] Preferably, the first waterproof sealing rings are provided in two numbers and are respectively sealed and filled in the connection gap between one side of the reinforcing ring plate and one cylinder, and in the connection gap between the other side of the reinforcing ring plate and the other cylinder.

[0013] Preferably, the clamp includes a hollow conical seat and a pressure-regulating conical shaft, the pressure-regulating conical shaft is sleeved inside the hollow conical seat and forms an annular clamping space with a conical cross section with the inner wall of the hollow conical seat, a reinforcing steel wire is fixed to the surface of the submarine cable body, and one end of the reinforcing steel wire extends into the annular clamping space and sleeves therein, one end of the submarine cable body passes through the pressure-regulating conical shaft and then sleeves through the corresponding middle structure of the end cover plate, the rubber sealing plug and the gasket are respectively nested between the end of the submarine cable body and the inner side of the middle of the end cover plate for sealing;

[0014] An internal thread is provided on the inner wall of one end of the hollow conical seat, and an external thread that can be engaged with the internal thread is provided on the surface of one end of the pressure-regulating conical shaft. The pressure-regulating conical shaft can pressurize and limit or release the pressure to make way for the reinforcing steel wire in the annular clamping space during the process of rotational engagement between its own external thread and the internal thread inside the hollow conical seat.

[0015] Preferably, one end surface of the pressure-regulating cone shaft is covered with a third linkage sealing ring that is fitted and connected to the inner wall of the hollow cone seat, and the other end of the pressure-regulating cone shaft is fixed with a regular hexagonal sleeve block that is movably connected to the submarine optical cable body, and auxiliary sealing rings are nested in the sleeve gap between the submarine optical cable body and the middle part of the pressure-regulating cone shaft, and in the sleeve gap between the reinforcing steel wire and the end structure at the other end of the hollow cone seat.

[0016] Preferably, the end structure of one end of the hollow conical seat is provided with a plurality of second composite screws along the circumference of its own structure, and a plurality of second screw holes are provided in the end face cover plate corresponding to the hollow conical seat, and one end of the second composite screw can be detachably installed on the hollow conical seat and the end face cover plate by spirally engaging with the corresponding second screw hole.

[0017] Preferably, the second composite screw has the same structure as the first composite screw. The first composite screw consists of a screw and a first linkage sealing ring. The first linkage sealing ring is sleeved on one end of the screw and is in close contact with the nut of the screw. After the screw is threadedly connected to the corresponding first screw hole, the first linkage sealing ring can connect the gap to cover and seal.

[0018] Preferably, a fiber coil assembly is provided on the end surfaces of the two end cover plates facing the interior of the corresponding cylinder, and the fiber coil assembly includes a support plate, a T-shaped collecting plate is sleeved in the middle of the support plate through a bearing, and the middle of the optical cable pigtail can be stored on the middle surface of the T-shaped collecting plate in a spirally wound manner;

[0019] The rear end of the support plate is clamped with an L-shaped square rod fixed on the end surface of the corresponding end cover plate, and a spring is sleeved on the outside of the L-shaped square rod, and the two ends of the spring are respectively fixed on the surface of the support plate and the corresponding end cover plate section.

[0020] Preferably, a first limiting rod is provided on the side surface of one side of the support plate, and the first limiting rod includes a T-shaped shaft and a damping plate, one end of the T-shaped shaft is fixedly sleeved in the side structure of one side of the support plate, and one end of the damping plate is clamped with the other end of the T-shaped shaft and in contact with the side surface of the support plate;

[0021] The other end of the T-shaped shaft is movably connected to a second limiting rod fixed on the inner wall of the bottom of the corresponding cylinder.

[0022] (3) Beneficial effects

[0023] The present invention provides a connection device for quickly laying submarine optical cables, which has the following beneficial effects:

[0024] 1. This connection device for rapid deployment of submarine optical cables is easy to install and does not require special tools. It has high mechanical strength, strong resistance to lateral pressure, and good watertightness. It provides good protection for the optical fiber connected in the middle. In addition, it can be installed quickly at the construction site, meeting the special needs of rapid deployment.

[0025] 2. The connection device for quickly laying submarine optical cables specifically provides ample space by flexibly disassembling the two barrels through matching fasteners. After the transition connector and the two optical cable pigtails are assembled, the two barrels cooperate with their corresponding first waterproof sealing rings and fasteners for sealing installation, thereby fully ensuring the pressure resistance and excellent waterproof performance of the assembly formed by the transition connector and the two optical cable pigtails after laying.

[0026] 3. The connecting device for rapid deployment of submarine optical cables, through the combination of the clamp formed by the hollow conical seat, the pressure-regulating conical shaft, and the regular hexagonal sleeve and the submarine optical cable body with the reinforcing steel wire fixed on the surface, can enable the pressure-regulating conical shaft to pressurize and limit or release the pressure to make way for the reinforcing steel wire in the annular clamping space during the rotational engagement between its own external thread and the internal thread inside the hollow conical seat, thereby realizing convenient limit clamping of the submarine optical cable body and the pressure-regulating conical shaft after assembly, further creating favorable conditions for rapid deployment, and the provided reinforcing steel wire can also further ensure the structural strength of the submarine optical cable body outside the cylinder.

[0027] 4. The connection device for quickly laying submarine optical cables, through the auxiliary structure of the fiber coil assembly, can, during the specific assembly process of the two optical cable pigtails and the transition connector, wrap the excess structure of the optical cable pigtails around the middle surface of the T-shaped collection disk set at the front end of the support plate in a reciprocating winding manner for storage, thereby solving the problem that the multiple excess structures of the two optical cable pigtails are prone to kinking if they are not constrained. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a cross-sectional schematic diagram of the structure of the present invention;

[0029] Figure 2 It is a front view schematic diagram of the structure of the present invention;

[0030] Figure 3 It is a left side schematic diagram of the structure of the present invention;

[0031] Figure 4 The structure of the present invention Figure 1 A magnified schematic diagram of point A in the middle;

[0032] Figure 5 It is an enlarged schematic diagram of the hollow cone seat in the structure of the present invention;

[0033] Figure 6 This is an enlarged schematic diagram of the pressure-regulating cone shaft of the present invention;

[0034] Figure 7 It is an enlarged schematic diagram of the first composite screw of the structure of the present invention;

[0035] Figure 8It is a three-dimensional schematic diagram of the structural fiber coil assembly of the present invention;

[0036] Figure 9 It is a rear view schematic diagram of the structural fiber coil assembly of the present invention.

[0037] In the figure: 1. Cylinder; 2. End cover plate; 3. First composite screw; 31. Screw; 32. First linkage sealing ring; 4. Submarine optical cable body; 5. Optical cable pigtail; 6. Transition connector; 7. Bolt assembly; 71. Bolt; 72. Nut; 73. Second linkage sealing ring; 8. First waterproof sealing ring; 9. Reinforcement ring plate; 10. Hollow cone seat; 11. Pressure regulating cone shaft; 12. Hexagonal sleeve; 13. Reinforcement steel wire; 14. Rubber sealing plug; 15. Gasket; 16. Second waterproof sealing ring; 17. Second composite screw; 18. Fiber coil assembly; 181. Support plate; 182. T-type collecting tray; 183. L-type square rod; 184. Spring; 19. First limiting rod; 20. Second limiting rod; 21. Third linkage sealing ring. DETAILED DESCRIPTION

[0038] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0039] The present invention provides a technical solution:

[0040] See also Figure 1-Figure 3 A connecting device for rapidly laying submarine optical cables comprises two aligned and assembled cylindrical members, the open ends of the two cylindrical members being aligned and assembled and being removably fixed by fasteners, and a first waterproof sealing ring 8 being filled in the connecting gap between the two cylindrical members;

[0041] A clamp is installed on one side of each of the two cylindrical members, and a submarine optical cable body 4 is sleeved in the clamp. One end of the submarine optical cable body 4 is provided with an optical cable pigtail 5 extending to the inside of the corresponding transition connector 6, and a transition connector 6 is installed between the two optical cable pigtails 5 in relative positions. A rubber sealing plug 14 and a gasket 15 are nested in the sleeve gap between the end of the submarine optical cable body 4 and the clamp.

[0042] During use, for the convenient assembly of the two optical cable pigtails 5 and the transition connector 6, the two tube members are flexibly disassembled through the matching fasteners to provide sufficient space, and for the transition connector 6 and the two optical cable pigtails 5 after assembly, the two tube members are sealed and installed with their corresponding first waterproof sealing rings 8 and fasteners, thereby fully ensuring the pressure resistance and excellent waterproof use effect of the assembly formed by the transition connector 6 and the two optical cable pigtails 5 after deployment, and the convenient assembly and disassembly can also meet the needs of rapid deployment.

[0043] See also Figure 1-Figure 4 The cylinder comprises a cylinder body 1 and an end cover plate 2. The end cover plate 2 is clamped in one side of the cylinder body 1, and a plurality of first screw holes are opened inside the end cover plate 2. A plurality of first composite screws 3 are set in the side wall structure on one side of the cylinder body 1. The first composite screws 3 can be threadedly connected with the corresponding first screw holes. The set gap between the cylinder body 1 and the end cover plate 2 is sealed and filled with a second waterproof sealing ring 16, and an assembly groove is opened on one side of the side wall of the cylinder body 1. The fasteners include a bolt assembly 7 and a reinforcing ring plate 9. The reinforcing ring plate 9 is located at Between the two cylinders 1 at the assembled position, the bolt assembly 7 includes a bolt 71 and a nut 72. One end of the bolt 71 can penetrate the outer ring structure of the two cylinders 1 and the reinforcing ring plate 9 in sequence and then be threadedly connected to the nut 72. The end face of the open port of the nut 72 is fixed with a second linkage sealing ring 73 that can be clamped with the bolt 71. The first waterproof sealing ring 8 is provided in two numbers and is respectively sealed and filled in the connection gap between one side of the reinforcing ring plate 9 and one cylinder 1, and in the connection gap between the other side of the reinforcing ring plate 9 and the other cylinder 1.

[0044] When in use, the modular cylinder is formed by assembling the cylinder body 1 and the end cover plate 2 with the cooperation of the first composite screw 3. The second waterproof sealing ring 16 ensures the sealing effect of the connection gap of the cylinder itself, thereby further expanding the flexibility of the overall device in the pre-assembly stage and reducing the difficulty of assembly and connection.

[0045] In order to further reduce the difficulty of assembly, the reinforcement ring plate 9 is used as a reinforcement condition for the connection between the two cylinders 1, and the bolt 71 in the bolt assembly 7 is used as the main locking structure to penetrate the reinforcement ring plate 9 and the assembly formed by the two cylinders 1 with a preset clearance space and is threadedly connected with the nut 72, so that the assembly formed by the reinforcement ring plate 9 and the two cylinders 1 is stably assembled to meet the requirements of stable assembly of the corresponding structure, high strength and pressure resistance while maintaining the convenience of disassembly and maintenance. In the specific setting process, the number of bolt assemblies 7 set will be no less than two.

[0046] See also Figure 1 、 Figure 5-Figure 7 The clamp includes a hollow conical seat 10 and a pressure-regulating conical shaft 11. The pressure-regulating conical shaft 11 is installed inside the hollow conical seat 10 and forms an annular clamping space with a conical cross section with the inner wall of the hollow conical seat 10. A reinforcing steel wire 13 is fixed to the surface of the submarine cable body 4, and one end of the reinforcing steel wire 13 extends into the annular clamping space. One end of the submarine cable body 4 passes through the pressure-regulating conical shaft 11 and then passes through the corresponding middle structure of the end cover 2. The rubber sealing plug 14 and the gasket 15 are respectively nested between the end of the submarine cable body 4 and the inner side of the middle of the end cover 2 for sealing;

[0047] An internal thread is provided on the inner wall of one end of the hollow conical seat 10, and an external thread that can be engaged with the internal thread is provided on the surface of one end of the pressure-regulating cone shaft 11. The pressure-regulating cone shaft 11 can pressurize and limit or release the reinforcing steel wire 13 in the annular clamping space during the process of rotational engagement between its own external thread and the internal thread inside the hollow conical seat 10;

[0048] One end surface of the pressure-regulating cone shaft 11 is provided with a third linkage sealing ring 21 which is fitted and connected to the inner wall of the hollow cone seat 10, and the other end of the pressure-regulating cone shaft 11 is fixed with a regular hexagonal sleeve block 12 which is movably connected to the submarine cable body 4. Auxiliary sealing rings are nested in the sleeve gap between the submarine cable body 4 and the middle part of the pressure-regulating cone shaft 11, and in the sleeve gap between the reinforcing steel wire 13 and the end structure of the other end of the hollow cone seat 10 to improve the sealing effect of the connection. The end structure of one end of the hollow cone seat 10 is provided with a number of second composite screws 17 along the circumference of its own structure, and a number of second screw holes are provided in the end cover plate 2 corresponding to the hollow cone seat 10, and one end of the second composite screw 17 can be detachably installed on the hollow cone seat 10 and the end cover plate 2 by spirally engaging with the corresponding second screw hole.

[0049] During use, the pressure-regulating cone shaft 11 and the hollow cone seat 10 are moved closer or farther apart in a spirally locked manner to pressurize and limit the reinforcing steel wire 13 in the annular clamping space or release the pressure to make way for it, thereby realizing convenient position-limiting clamping of the submarine cable body 4 and the pressure-regulating cone shaft 11 after being assembled, further creating favorable conditions for rapid deployment, and the reinforcing steel wire 13 can also further ensure the structural strength of the submarine cable body 4 outside the cylinder 1;

[0050] The regular hexagonal sleeve 12 serves as the main load-bearing structure during the rotation of the pressure-regulating cone shaft 11 , and can cooperate with the existing wrench to provide convenient adjustment operating conditions for the rotation adjustment of the pressure-regulating cone shaft 11 .

[0051] See also Figure 7 The second composite screw 17 has the same structure as the first composite screw 3. The first composite screw 3 consists of a screw 31 and a first linkage sealing ring 32. The first linkage sealing ring 32 is sleeved on one end of the screw 31 and is in close contact with the nut of the screw 31. After the screw 31 is threadedly connected to the corresponding first screw hole, the first linkage sealing ring 32 can connect the gap and cover the seal.

[0052] During use, taking into account the corrosion problem of the seawater environment on the structure, the first linkage sealing ring 32 is provided to connect the screw 31 with the corresponding first screw hole to cover and seal the gap. The second composite screw 17 also has the same operating principle, thereby delaying the corrosion rate of the locking structure outside the device by seawater, and extending the service life of the entire device.

[0053] See also Figure 8-Figure 9 , a fiber coil assembly 18 is provided on the end surface of each of the two end cover plates 2 facing the interior of the corresponding cylinder 1. The fiber coil assembly 18 includes a support plate 181. A T-shaped collecting plate 182 is provided in the middle of the support plate 181 through a bearing sleeve. The middle part of the optical fiber pigtail 5 can be spirally wound and stored on the middle surface of the T-shaped collecting plate 182;

[0054] The rear end of the support plate 181 is clamped with an L-shaped square rod 183 fixed on the end face of the corresponding end cover plate 2, and a spring 184 is sleeved on the outside of the L-shaped square rod 183, and the two ends of the spring 184 are respectively fixed on the surface of the support plate 181 and the corresponding cross-section of the end cover plate 2. A first limiting rod 19 is provided on the side of one side of the support plate 181. The first limiting rod 19 includes a T-shaped shaft and a damping plate. One end of the T-shaped shaft is fixedly sleeved in the side structure of one side of the support plate 181. One end of the damping plate is clamped with the other end of the T-shaped shaft and is in contact with the side of the support plate 181. The other end of the T-shaped shaft is movably connected to a second limiting rod 20 fixed on the inner wall of the bottom of the corresponding cylinder 1

[0055] During use, considering that redundant structures will be left in the assembly process of the two optical fiber pigtails 5 to ensure successful connection, and the multiple redundant structures of the two optical fiber pigtails 5 are prone to kinking if not constrained, the fiber coil assembly 18 and related structures are provided to solve the problem, as follows:

[0056] In addition to the specific assembly of the two optical cable pigtails 5 and the transition connector 6, pull the support plate 181 inside one cylinder 1 so that the support plate 181 moves toward the open end of the cylinder 1 along the support of the corresponding L-shaped square rod 183. After the first limiting rod 19 on the support plate 181 is completely moved out of the cylinder 1, flip the damping plate inside the first limiting rod 19 and make it contact with the outer surface of the open end of the cylinder 1 to move and position the support plate 181. Then, the excess structure of the optical cable pigtail 5 is put on the outside of the middle surface of the T-shaped collection tray 182 set at the front end of the support plate 181 in a reciprocating winding manner for storage. Similarly, the other optical cable pigtail 5, the fiber coil assembly 18 and the first limiting rod 19 are also installed and operated according to the above steps. After the excess parts of the two optical cable pigtails 5 are both stored, the transition connector 6 is assembled, thereby fully solving the above problem.

[0057] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0058] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A connecting device for rapidly laying submarine optical cables, comprising two aligned and assembled cylindrical members, characterized in that: The open ends of the two cylinders are aligned and assembled and can be detachably fixed by fasteners, and the connecting gap between the two cylinders is filled with a first waterproof sealing ring (8); A clamp is installed on one side of each of the two cylindrical members, and a submarine optical cable body (4) is sheathed in the clamp. An optical cable pigtail (5) extending to the inside of a corresponding transition connector (6) is provided at one end of the submarine optical cable body (4), and a transition connector (6) is installed between the two optical cable pigtails (5) in relative positions. A rubber sealing plug (14) and a gasket (15) are embedded in the sheathing gap between the end of the submarine optical cable body (4) and the clamp.

2. A connection device for rapidly laying submarine optical cables according to claim 1, characterized in that: The cylinder member comprises a cylinder body (1) and an end cover plate (2). The end cover plate (2) is clamped in one side of the cylinder body (1), and a plurality of first screw holes are provided inside the end cover plate (2). A plurality of first composite screws (3) are sleeved in the side wall structure of one side of the cylinder body (1), and the first composite screws (3) can be threadedly connected with the corresponding first screw holes. A second waterproof sealing ring (16) is sealed and filled in the sleeve gap between the cylinder (1) and the end cover plate (2), and an assembly clearance groove is provided on one side wall of the cylinder (1).

3. The connection device for rapidly laying submarine optical cables according to claim 1, characterized in that: The fastener comprises a bolt assembly (7) and a reinforcing ring plate (9), wherein the reinforcing ring plate (9) is located between two cylinders (1) in an assembled position, and the bolt assembly (7) comprises a bolt (71) and a nut (72), wherein one end of the bolt (71) can sequentially penetrate the outer ring structure of the two cylinders (1) and the reinforcing ring plate (9) and then be threadedly connected to the nut (72), and a second linkage sealing ring (73) capable of being engaged with the bolt (71) is fixed to the end surface of the open end of the nut (72).

4. A connection device for rapidly laying submarine optical cables according to claim 3, characterized in that: The first waterproof sealing rings (8) are provided in two numbers and are respectively sealed and filled in the connection gap between one side of the reinforcing ring plate (9) and one cylinder (1), and in the connection gap between the other side of the reinforcing ring plate (9) and the other cylinder (1).

5. The connection device for rapidly laying submarine optical cables according to claim 1, characterized in that: The clamp comprises a hollow conical seat (10) and a pressure regulating conical shaft (11), wherein the pressure regulating conical shaft (11) is sleeved inside the hollow conical seat (10) and forms an annular clamping space with a conical cross section with the inner wall of the hollow conical seat (10), a reinforcing steel wire (13) is fixed on the surface of the submarine optical cable body (4), and one end of the reinforcing steel wire (13) extends to be sleeved in the annular clamping space, one end of the submarine optical cable body (4) passes through the pressure regulating conical shaft (11) and then sleeved through the corresponding middle structure of the end face cover plate (2), and the rubber sealing plug (14) and the gasket (15) are respectively nested between the end of the submarine optical cable body (4) and the inner side of the middle part of the end face cover plate (2) for sealing; An inner wall of one end of the hollow conical seat (10) is provided with an internal thread, and an outer thread that can be engaged with the inner thread is provided on the surface of one end of the pressure-regulating conical shaft (11). The pressure-regulating conical shaft (11) can pressurize and limit or release the reinforcing steel wire (13) in the annular clamping space during the process of rotational engagement of its own outer thread with the inner thread inside the hollow conical seat (10).

6. A connection device for rapidly laying submarine optical cables according to claim 5, characterized in that: One end surface of the pressure regulating cone shaft (11) is sheathed with a third linkage sealing ring (21) that is closely connected to the inner wall of the hollow cone seat (10), and the other end of the pressure regulating cone shaft (11) is fixed with a regular hexagonal sleeve block (12) that is movably sleeved with the submarine optical cable body (4), and auxiliary sealing rings are embedded in the sleeve gap between the submarine optical cable body (4) and the middle part of the pressure regulating cone shaft (11), and in the sleeve gap between the reinforcing steel wire (13) and the end structure of the other end of the hollow cone seat (10).

7. The connection device for rapidly laying submarine optical cables according to claim 5, characterized in that: The end head structure of one end of the hollow conical seat (10) is provided with a plurality of second composite screws (17) along the circumference of the structure, and a plurality of second screw holes are provided in the end face cover plate (2) corresponding to the hollow conical seat (10), and one end of the second composite screw (17) can be detachably mounted on the hollow conical seat (10) and the end face cover plate (2) by spirally engaging with the corresponding second screw hole.

8. The connection device for rapidly laying submarine optical cables according to claim 7, characterized in that: The second composite screw (17) has the same structure as the first composite screw (3). The first composite screw (3) is composed of a screw (31) and a first linkage sealing ring (32). The first linkage sealing ring (32) is sleeved on one end of the screw (31) and is in close contact with the nut of the screw (31). After the screw (31) is threadedly connected to the corresponding first screw hole, the first linkage sealing ring (32) can connect the gap to cover and seal.

9. The connection device for rapidly laying submarine optical cables according to claim 2, characterized in that: A fiber coil assembly (18) is provided on the end surfaces of the two end cover plates (2) facing the interior of the corresponding cylinder (1), and the fiber coil assembly (18) includes a support plate (181). A T-shaped collecting plate (182) is provided in the middle of the support plate (181) through a bearing sleeve, and the middle of the optical fiber pigtail (5) can be stored on the middle surface of the T-shaped collecting plate (182) in a spirally wound manner; The rear end of the support plate (181) is clamped with an L-shaped square rod (183) fixed on the end face of the corresponding end cover plate (2), and a spring (184) is sleeved on the outer side of the L-shaped square rod (183), and the two ends of the spring (184) are respectively fixed on the surface of the support plate (181) and the cross section of the corresponding end cover plate (2).

10. The connection device for rapidly laying submarine optical cables according to claim 9, characterized in that: A first limiting rod (19) is provided on the side surface of one side of the support plate (181), and the first limiting rod (19) includes a T-shaped shaft and a damping plate, one end of the T-shaped shaft is fixedly sleeved in the side structure of one side of the support plate (181), and one end of the damping plate is clamped with the other end of the T-shaped shaft and is in close contact with the side surface of the support plate (181); The other end of the T-shaped shaft is movably connected to a second limiting rod (20) fixed on the inner wall of the bottom of the corresponding cylinder (1).

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