A deep-sea sounding cable joint box and its integration method

Abstract

The present invention discloses a deep-sea sounding cable junction box and an integration method thereof, comprising: a bend limiter, an outer cone, an inner cone, an end cover, an optoelectronic separation component, a bearing frame, a fiber coiling box and a shell, the end covers are arranged at both ends of the inner cavity of the shell, the inner cone is arranged on the outside of the end cover, the outer cone is sleeved on the outside of the inner cone, and clamps the armored steel wire on the sounding cable, the outer cone is provided with a first connecting screw connected to the end cover, the bend limiter is arranged at both ends of the shell, the bearing frame is arranged in the shell and connected between the end covers on both sides, the fiber coiling box is arranged in the bearing frame to connect the optical fibers of two sections of sounding cables, the optoelectronic separation component is arranged in the bearing frame and is located at the end of the corresponding sounding cable, the bearing frame or the fiber coiling box is provided with an electrical unit connecting part connecting the optoelectronic separation components on both sides, the connection is reliable, the integration is fast, the stability is high, the sealing is good, and the tensile strength is high.

Description

Technical Field

[0001] The present invention relates to the field of joint boxes, in particular to a deep-sea sounding cable joint box and an integration method thereof. Background Art

[0002] The Tongtan cable (communication and detection integrated optical cable) is a new generation of submarine optical cable designed for applications such as submarine cable security monitoring and submarine environmental monitoring. While ensuring the communication transmission performance of the communication optical cable, it can sensitively sense physical quantities such as surrounding sound / temperature / pressure and can also perceive surrounding fishing vessels (noisy targets).

[0003] Limited by the production length of sounding cables, achieving ultra-long-distance cross-sea communications inevitably raises an urgent need for sounding cable splice closures. Existing splice closures typically use armor or glue-filled structures as load-bearing structures, which are often unable to withstand water depths of 2000 meters and the requirements of a maximum tensile force of 200kN.

[0004] For example, the invention patent with authorization announcement number CN206020752U discloses a branch junction box suitable for laying out wires and plowing. The armored steel wires are crimped together by an outer cone and an inner cone. The load-bearing part of the junction box is the outer shell. The adapter cable is in the form of an ordinary submarine cable or optical cable. The connection efficiency and tension value requirements of the junction box are relatively low.

[0005] In addition, although the junction box is a closed environment, it still contains a large amount of air. The working voltage of the electrical unit of the probe cable is 10kV. Direct connection of the electrical unit is not conducive to the stability and safety of the connection part, and needs to be improved. Summary of the Invention

[0006] The main technical problem solved by the present invention is to provide a deep-sea sounding cable joint box and its integration method, so as to improve the sealing performance and overall tensile performance and meet the use requirements of large water depth and large tensile force.

[0007] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a deep-sea sounding cable junction box, comprising: a bend limiter, an outer cone, an inner cone, an end cover, an optoelectronic separation component, a bearing frame, a fiber coil box and a shell, the end covers are arranged at both ends of the inner cavity of the shell, the inner cone is arranged on the outside of the end cover, the outer cone is sleeved on the outside of the inner cone, and clamps the armored steel wire on the sounding cable, the outer cone is provided with a first connecting screw connected to the end cover, the bend limiter is provided at both ends of the shell, limits the bending of the sounding cable and limits the position of the outer cone, the bearing frame is arranged in the shell and connected between the end covers on both sides, the fiber coil box is arranged in the bearing frame to connect the optical fibers of two sections of sounding cables, the optoelectronic separation component is arranged in the bearing frame and is located at the end of the corresponding sounding cable, and the bearing frame or the fiber coil box is provided with an electrical unit connecting part connecting the optoelectronic separation components on both sides.

[0008] In a preferred embodiment of the present invention, a first O-ring is provided on the outer circumference of the end cover, a socket corresponding to the inner sheath of the sounding cable is provided in the end cover, and a second O-ring is provided in the socket.

[0009] In a preferred embodiment of the present invention, a tapered hole is provided in the insertion hole, a threaded hole communicating with the tapered hole is provided on the inner side of the end cover, a locking nut is provided in the threaded hole, and a sealing member is provided in the tapered hole.

[0010] In a preferred embodiment of the present invention, the sealing element is a conical sealing sleeve.

[0011] In a preferred embodiment of the present invention, the optoelectronic separation component includes an insulating cover, an insulating box, a first pressure plate, an electrical contact and a second pressure plate. The insulating cover is arranged at the open end of the insulating box, and the insulating box is provided with a second connecting screw connected to the insulating cover. A third O-ring is provided at the connection between the insulating box and the insulating cover. A cable core inlet is provided on the outside of the insulating cover, and an optical unit outlet corresponding to the cable core inlet and an electrical unit outlet located on one side of the optical unit outlet are provided on the outside of the insulating box. The first and second pressure plates are clamped together to form an insulating part and are placed in the insulating box. Grooves are provided on the inner sides of the first and second pressure plates to form an embedded groove corresponding to the electrical contact. The electrical contact includes two conductive blocks, and the two conductive blocks are docked to clamp the electrical unit on the probe cable.

[0012] In a preferred embodiment of the present invention, the load-bearing frame includes a first arc plate and a second arc plate, the first arc plate and the second arc plate are combined into a cylindrical structure, a limiting ring extending into the load-bearing frame is provided on the inner side of the end cover, and an annular groove corresponding to the limiting ring is provided on the inner side of the first arc plate and the second arc plate.

[0013] In a preferred embodiment of the present invention, a third connecting screw connected to the limiting ring is provided on the first arc plate and the second arc plate.

[0014] In a preferred embodiment of the present invention, the end of the bend limiter is provided with a connector fixed to the housing by means of threads, and a stepped hole corresponding to the outer cone is provided in the connector.

[0015] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a method for integrating a joint box, comprising the following steps:

[0016] a. Install the bend limiter, outer cone, and inner cone in sequence from one end of a sounding cable. Strip the end of the sounding cable to expose a section of armored steel wire. Use an armor pressing device to fix the armored steel wire between the inner wall of the outer cone and the outer wall of the inner cone, and apply pre-tightening force.

[0017] b. Apply silicone grease evenly to the first O-ring and install it into the corresponding installation groove on the outer wall of the end cover, and then put the end cover on the sounding cable;

[0018] The outer cone and the end cover are fixed by the first connecting screw, and the inner cone is fitted with the outer end of the end cover. The seal and the locking nut are installed in the end cover, and the seal is pressed and fixed by the locking nut;

[0019] c. Install the photoelectric separation component to the end of the probe cable 1;

[0020] d. Install another sounding cable according to the above steps, pass the end of one of the sounding cables through the shell, assemble the two ends of the first arc plate in the bearing frame with the end covers on the two sounding cables through the cooperation of the limit rings and the ring grooves, and fix them with the third connecting screws, fix the fiber coiling box on the first arc plate, use the fiber coiling box to complete the connection of the optical fibers in the two sounding cables, complete the connection of the electrical units in the two sounding cables through the cooperation of the electrical unit connecting part and the optoelectronic separation component, and then dock the second arc plate with the first arc plate to form a complete bearing frame;

[0021] Push the shell so that the load-bearing frame and the end covers on the two sounding cables enter the shell;

[0022] e. Push the bend limiter toward the shell and complete the connection between the bend limiter and the end of the shell.

[0023] In a preferred embodiment of the present invention, in step c, a heat shrink tube and an insulating cover are first put on the end of the sounding cable, and the heat shrink tube is used to complete the heat shrink connection between the outer wall of the sounding cable 1 and the cable core inlet;

[0024] Then clamp the two conductive blocks on the electrical contact piece onto the electrical unit of the probe cable core and tighten them with screws;

[0025] Clamping the first pressing plate and the second pressing plate from the outside of the electrical contact to provide insulation protection for the electrical contact;

[0026] Install the third O-ring in the corresponding groove at the open end of the insulation box, lead out the optical fiber from the optical unit outlet, lead out the electrical unit connection part from the electrical unit outlet, and then install and fix the insulation box and insulation cover with the second connecting screw.

[0027] The beneficial effects of the present invention are as follows: the deep-sea sounding cable joint box and the integration method thereof disclosed in the present invention have a compact structure, reliable connection, fast integration, and high stability, and can meet the use requirements of a large water depth of 2000 meters and a working tension of 200kN. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0029] Figure 1 This is a structural diagram of a preferred embodiment of a deep-sea sounding cable joint box of the present invention;

[0030] Figure 2 yes Figure 1 AA section view;

[0031] Figure 3 yes Figure 2 Schematic diagram of the structure of the optoelectronic separation component;

[0032] Figure 4 yes Figure 3 Exploded diagram;

[0033] Figure 5 1 is a schematic diagram of a preferred embodiment of step a in a method for integrating a joint closure of the present invention;

[0034] Figure 6 1 is a schematic diagram of a preferred embodiment of step b in a method for integrating a joint closure of the present invention;

[0035] Figure 7 1 is a schematic diagram of a preferred embodiment of step c in a method for integrating a joint closure of the present invention;

[0036] Figure 8 It is a schematic diagram of a preferred embodiment of the installation process of the first arc plate in step d of a method for integrating a joint box of the present invention;

[0037] Figure 9 It is a schematic diagram of a preferred embodiment of the second arc plate installation process in step d of a method for integrating a joint box of the present invention. DETAILED DESCRIPTION

[0038] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] See also Figures 1 to 9 , embodiments of the present invention include:

[0040] like Figure 1 and Figure 2 The deep-sea cable joint box shown includes: a bend limiter 2, an outer cone 3, an inner cone 4, an end cover 5, an optoelectronic separation component 8, a load-bearing frame 9, a fiber coil box 10 and a shell 11. The shell 11 can be made of a stainless steel cylindrical structure with good corrosion resistance.

[0041] End caps 5 are positioned at both ends of the inner cavity of the housing 11. First O-rings 14 are disposed on the outer circumference of the end caps 5. In this embodiment, two first O-rings 14 are employed to enhance the sealing properties of the connection. The inner cone 4 is positioned outside the end caps 5, and the outer cone 3 is sleeved onto the outer side of the inner cone 4 to clamp the armored steel wire 17 on the sounding cable 1. The inner conical hole in the outer cone 3 cooperates with the tapered outer wall of the inner cone 4 to achieve stable clamping and fixation of the armored steel wire 17, effectively preventing it from falling off.

[0042] like Figure 6 As shown, a first connecting screw 16 connected to the end cover 5 is provided on the outer cone 3. The outer cone 3 is locked by the first connecting screw 16 to prevent the inner cone 4 from loosening and improve the tensile strength.

[0043] Bend limiters 2 are installed at both ends of the housing 11 to limit the bending of the sounding cable 1. In this embodiment, the ends of the bend limiters 2 are provided with connectors that are threadedly fixed to the housing 11, facilitating assembly. The connectors are provided with stepped holes corresponding to the outer cone 3. After the junction box is assembled, the stepped holes align with the stepped surfaces of the T-shaped outer cone 3, limiting the outer cone 3 and further enhancing the tensile strength.

[0044] like Figure 5 and Figure 6 As shown, a socket corresponding to the inner sheath of the sounding cable 1 is provided in the end cover 5, and a second O-ring 15 is provided in the socket. When the sounding cable 1 passes through the socket of the end cover 5, the second O-ring 15 cooperates with the inner sheath of the sounding cable 1 to perform the first sealing of the inner sheath.

[0045] The jack has a tapered hole. The inner side of the end cap 5 is provided with a threaded hole connected to the tapered hole. A locking nut 7 is installed in the threaded hole. A seal 6 is installed in the tapered hole. The locking nut 7 squeezes the seal 6, creating a secondary seal on the inner sheath and ensuring a good seal. In this embodiment, the seal 6 is a conical sealing sleeve that elastically deforms under the squeezing force of the locking nut 7, improving the sealing effect and meeting the requirements of use in water depths of up to 2000 meters.

[0046] The load-bearing frame 9 is arranged in the shell 11 and connected between the end covers 5 on both sides. In this embodiment, the load-bearing frame 9 includes a first circular arc plate 91 and a second circular arc plate 92. The first circular arc plate 91 and the second circular arc plate 92 are combined into a cylindrical structure. The first circular arc plate 91 and the second circular arc plate 92 are made of aluminum alloy to ensure structural strength and reduce dead weight.

[0047] A limiting ring 51 extending into the load-bearing frame 9 is provided on the inner side of the end cover 5, and an annular groove 93 corresponding to the limiting ring 51 is provided on the inner side of the first arc plate 91 and the second arc plate 92, which fits tightly. The end covers 5 on both sides are limited by the load-bearing frame 9 to improve the tensile resistance effect.

[0048] like Figure 8 and Figure 9 As shown, third connecting screws 94 connected to the limiting ring 51 are provided on the first arc plate 91 and the second arc plate 92, thereby improving the structural stability of the load-bearing frame 9. The load-bearing frame 9 and the housing 11 are simultaneously tensile, meeting the working tensile force requirement of 200kN and improving stability.

[0049] A fiber spooling box 10 is placed in a support frame 9 to connect the optical fibers 13 of the two sections of the sounding cable 1. An optoelectronic separation assembly 8 is placed in the support frame 9 and at the corresponding end of the sounding cable 1 to separate the optical fibers and the electrical unit. An electrical unit connector 12 is provided in the support frame 9 or the fiber spooling box 10 to connect the optoelectronic separation assemblies 8 on both sides. The electrical unit connector 12 can be made of an insulating sheathed conductor to achieve electrical connection between the two sections of the sounding cable.

[0050] like Figure 3 and Figure 4 As shown, the optoelectronic separation assembly 8 includes an insulating cover 81, an insulating box 82, a first pressure plate 83, an electrical contact 85, and a second pressure plate 84. The insulating cover 81 is disposed at the open end of the insulating box 82. The insulating box 82 is provided with a second connecting screw 86 that connects to the insulating cover 81, facilitating assembly. A third O-ring 87 is provided at the connection between the insulating box 82 and the insulating cover 81 to seal the connection.

[0051] A cable core inlet 811 is provided on the outside of the insulating cover 81, so that the cable core of the probe cable 1 can enter the insulating box 82 through the cable core inlet 811. An optical unit outlet 822 corresponding to the cable core inlet 811 and an electrical unit outlet 821 located on one side of the optical unit outlet 822 are provided on the outside of the insulating box 82. The communication optical fiber is led out through the optical unit outlet 822, and the electrical unit connector 12 is led out through the electrical unit outlet 821.

[0052] The first pressing plate 83 and the second pressing plate 84 are snap-fitted to form an insulating part and are placed in the insulating box 82. Grooves are provided on the inner sides of the first pressing plate 83 and the second pressing plate 84 to form an embedding groove corresponding to the electrical contact 85. The first pressing plate 83 and the second pressing plate 84 are made of insulating plastic to position and insulate the electrical contact 85.

[0053] The electrical contact 85 comprises two conductive blocks that butt together to clamp the electrical unit (copper tube) on the probe cable 1. A first semicircular groove 851 corresponding to the copper tube is provided on the inner side of each conductive block, effectively clamping the electrical unit. The two conductive blocks are locked together by screws, providing a stable structure. A second semicircular groove 852 corresponding to the electrical unit connector 12 is also provided on the inner side of each conductive block, clamping the end of the electrical unit connector 12, achieving two goals at once.

[0054] like Figures 5 to 9 The method for integrating the splice closure shown comprises the following steps:

[0055] a. Install the bend limiter 2, outer cone 3, and inner cone 4 in sequence from one end of a sounding cable 1. Strip the end of the sounding cable 1 to expose a section of armored steel wire 17. Use an armor pressing device to fix the armored steel wire 17 between the inner wall of the outer cone 3 and the outer wall of the inner cone 4, and apply a preload.

[0056] In this embodiment, the detection cable 1 is a steel wire armored cable with detection optical fibers wound inside, with a maximum fiber capacity of 100 cores, 96 cores for communication and 4 cores for detection;

[0057] b. Evenly apply silicone grease to the first O-ring 14 and install it into the corresponding installation groove on the outer wall of the end cover 5. Then install the second O-ring 15 into the socket in the end cover 5. Put the end cover 5 on the inner sheath of the sounding cable 1 and use the second O-ring 15 to perform the first seal of the inner sheath;

[0058] The outer cone 3 and the end cover 5 are fixed by the first connecting screws 16, and the inner cone 4 is fitted with the outer end of the end cover 5 to ensure a stable structure.

[0059] Install the seal 6 and the lock nut 7 in the end cover 5, and press the seal 6 with the lock nut 7 to perform a second seal on the inner sheath to improve the sealing effect;

[0060] c. Install the photoelectric separation component 8 to the end of the probe cable 1. Specifically:

[0061] First, put the heat shrink tube 18 and the insulating cover 81 on the end of the sounding cable 1, and use the heat shrink tube 18 to complete the heat shrink connection between the outer wall of the sounding cable 1 and the cable core inlet 811;

[0062] Then clamp the two conductive blocks on the electrical contact 85 onto the electrical unit of the cable core of the probe cable 1 and tighten them with screws;

[0063] The first pressing plate 83 and the second pressing plate 84 are clamped together from the outside of the electrical contact 85 to provide insulation protection for the electrical contact 85;

[0064] Install the third O-ring 87 in the corresponding groove at the open end of the insulating box 82, lead the optical fiber from the optical unit outlet 822, and lead the electrical unit connection part 12 from the electrical unit outlet 821. Then, install and fix the insulating box 82 and the insulating cover 81 with the second connecting screws 86. The structure is stable and airtight, and meets the safety requirements of the electrical unit connection with a working voltage of 10kV.

[0065] In addition, corresponding heat shrink tubes can be installed on the optical unit outlet 822 and the electrical unit outlet 821 for airtight protection;

[0066] d. Install another sounding cable according to the above steps. Pass the end of one of the sounding cables 1 through the housing 11. Assemble the two ends of the first arc plate 91 in the bearing frame 9 with the end caps 5 on the two sounding cables 1 through the matching of the limiting ring 51 and the annular groove 93. Figure 8 As shown, the fiber coiling box 10 is fixed on the first arc plate 91 by using the third connecting screw 94, and the fiber coiling box 10 is used to complete the connection of the optical fibers 13 in the two sounding cables 1. In this embodiment, the 96-core communication optical fiber in the sounding cable 1 is led out from the insulating box 82, and the 4-core detection optical fiber is directly led out from the cable core, and the connection is completed respectively through the fiber coiling box 10;

[0067] The connection of the electrical units in the two probe cables 1 is completed by the cooperation of the electrical unit connecting portion 12 and the photoelectric separation component 8. Figure 9 As shown, the second arc plate 92 is then butted against the first arc plate 91 to form a complete load-bearing frame 9 with a stable structure.

[0068] Push the housing 11 so that the load-bearing frame 9 and the end covers 5 on the two sounding cables 1 enter the interior of the housing 11 to ensure sealing;

[0069] e. Push the bend limiter 2 toward the housing 11 and complete the threaded connection between the bend limiter 2 and the end of the housing 11. The operation is simple and convenient.

[0070] In summary, the present invention points out a deep-sea sounding cable junction box and its integration method, which realizes the connection of two sections of sounding cables and meets the requirements of a maximum water depth of 2000 meters and a working tension of 200kN. In the field of submarine communications, it has made breakthroughs in the long-length and large-capacity transmission of submarine optical cables and the insulation and voltage resistance technology of submarine optical cables, and solved the problem of ultra-long-distance transmission of submarine communication systems. In the field of submarine perception, it has made breakthroughs in the addition of underwater acoustic detection, submarine communication and detection perception technology to submarine optical cables, and solved the problem of deep-sea safety monitoring and environmental perception.

[0071] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A deep-sea sounding cable joint box, used for connecting two sections of sounding cables (1), characterized in that: include: A bend limiter (2), an outer cone (3), an inner cone (4), an end cover (5), an optoelectronic separation component (8), a load-bearing frame (9), a fiber coil box (10) and a shell (11), wherein the end cover (5) is arranged at both ends of the inner cavity of the shell (11), the inner cone (4) is arranged on the outside of the end cover (5), the outer cone (3) is sleeved on the outside of the inner cone (4), and clamps the armored steel wire (17) on the sounding cable (1), the outer cone (3) is provided with a first connecting screw (16) connected to the end cover (5), the bend limiter (2) is arranged at both ends of the shell (11), and limits the bending of the sounding cable (1) and the outer cone (4) The cone (3) is limited, the bearing frame (9) is arranged in the shell (11) and connected between the end covers (5) on both sides, the fiber coiling box (10) is arranged in the bearing frame (9) to connect the optical fibers (13) of the two sections of the probe cable (1), the photoelectric separation component (8) is arranged in the bearing frame (9) and is located at the end of the corresponding probe cable (1), the bearing frame (9) or the fiber coiling box (10) is provided with an electrical unit connecting part (12) connecting the photoelectric separation components (8) on both sides, the photoelectric separation component (8) includes an insulating cover (81), an insulating box (82), a first pressure plate (83), an electrical contact (85) and a second pressure plate (84), The insulating cover (81) is arranged at the open end of the insulating box (82), and the insulating box (82) is provided with a second connecting screw (86) connected to the insulating cover (81). A third O-ring (87) is provided at the connection between the insulating box (82) and the insulating cover (81). A cable core inlet (811) is provided on the outside of the insulating cover (81), and an optical unit outlet (822) corresponding to the cable core inlet (811) and an electrical unit outlet (821) located on one side of the optical unit outlet (822) are provided on the outside of the insulating box (82). The first pressing plate (83) and the second pressing plate (84) are clamped together to form an insulating member and placed in the insulating box (82). The first pressing plate (83) and the second pressing plate (84) are provided with grooves on the inner sides thereof to form an embedding groove corresponding to the electrical contact (85), the electrical contact (85) includes two conductive blocks, and the two conductive blocks are butted together to clamp the electrical unit of the probe cable (1), the bearing frame (9) includes a first circular arc plate (91) and a second circular arc plate (92), the first circular arc plate (91) and the second circular arc plate (92) are combined into a cylindrical structure, the inner side of the end cover (5) is provided with a limiting ring (51) extending into the bearing frame (9), and the inner sides of the first circular arc plate (91) and the second circular arc plate (92) are provided with an annular groove (93) corresponding to the limiting ring (51).

2. The deep sea cable joint box according to claim 1, characterized in that: A first O-ring (14) is provided on the outer circumference of the end cover (5), a socket corresponding to the inner sheath of the sounding cable (1) is provided in the end cover (5), and a second O-ring (15) is provided in the socket.

3. The deep sea cable joint box according to claim 2, characterized in that: A tapered hole is provided in the insertion hole, a threaded hole communicating with the tapered hole is provided on the inner side of the end cover (5), a locking nut (7) is provided in the threaded hole, and a sealing member (6) is provided in the tapered hole.

4. The deep sea cable joint box according to claim 3, characterized in that: The sealing member (6) adopts a conical sealing sleeve.

5. The deep sea cable joint box according to claim 1, characterized in that: The first arc plate (91) and the second arc plate (92) are provided with third connecting screws (94) connected to the limiting ring (51).

6. The deep sea cable joint box according to claim 1, characterized in that: The end of the bend limiter (2) is provided with a connector fixed to the housing (11) in a threaded manner, and a stepped hole corresponding to the outer cone (3) is provided in the connector.

7. A method for integrating a deep-sea probe cable joint box according to any one of claims 1 to 6, characterized in that: The following steps are involved: a. Stripping the end of the sounding cable (1) to expose a section of armored steel wire (17), fixing the armored steel wire (17) between the inner wall of the outer cone (3) and the outer wall of the inner cone (4) by means of an armor pressing device, and applying a pre-tightening force; b. Sleeve the end cover (5) onto the sounding cable (1), and fix the outer cone (3) and the end cover (5) by means of a first connecting screw (16); c. Install the photoelectric separation assembly (8) to the end of the probe cable (1); d. Install another sounding cable according to the above steps. Assemble the two ends of the first arc plate (91) in the bearing frame (9) with the end caps (5) on the two sounding cables (1) through the cooperation of the limit ring (51) and the annular groove (93). Fix the fiber coil box (10) on the first arc plate (91). Use the fiber coil box (10) to complete the connection of the optical fibers (13) in the two sounding cables (1). Complete the connection of the electrical units in the two sounding cables (1) through the cooperation of the electrical unit connecting part (12) and the photoelectric separation component (8). Then, dock the second arc plate (92) with the first arc plate (91) to form a complete bearing frame (9). Push the housing (11) so that the load-bearing frame (9) and the end covers (5) on the two sounding cables (1) enter the interior of the housing (11); e. Push the bend limiter (2) toward the housing (11) and complete the connection between the bend limiter (2) and the end of the housing (11).

8. The method for integrating a deep-sea probe cable joint box according to claim 7, characterized in that: In step c, a heat shrink tube (18) and an insulating cover (81) are first placed on the end of the probe cable (1), and the heat shrink tube (18) is used to complete the heat shrink connection between the outer wall of the probe cable (1) and the cable core inlet (811); Then clamp the two conductive blocks on the electrical contact (85) onto the electrical unit of the cable core of the probe cable (1) and tighten them with screws; The first pressing plate (83) and the second pressing plate (84) are clamped together from the outside of the electrical contact (85) to provide insulation protection for the electrical contact (85); The insulating box (82) and the insulating cover (81) are mounted and fixed by means of the second connecting screws (86).

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