Deep sea communication detection cable connector box and integration method thereof

Abstract

The invention discloses a deep sea communication detection cable joint box and an integration method thereof, the deep sea communication detection cable joint box comprises a bending limiter, an outer layer cone, an inner layer cone, end covers, a photoelectric separation assembly, a heavy frame, a fiber coiling box and a shell, the end covers are arranged at two ends of an inner cavity of the shell, the inner layer cone is arranged on the outer side of the end covers, the outer layer cone sleeves the outer side of the inner layer cone, and the photoelectric separation assembly is arranged on the outer side of the outer layer cone. First connecting screws connected with the end covers are arranged on the outer-layer cone, the bending limiting devices are arranged at the two ends of the shell, the heavy frame is arranged in the shell and connected between the end covers on the two sides, and the fiber coiling box is arranged in the heavy frame to conduct optical fiber connection of the two sections of the probing cables. The photoelectric separation assemblies are arranged in the heavy frame and located at the ends of the corresponding probing cables, the heavy frame or the fiber coiling box is internally provided with an electric unit connection part for connecting the photoelectric separation assemblies on the two sides, connection is reliable, integration is rapid, stability is high, sealing performance is good, and tensile strength is high.

Description

Technical Field

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

[0002] The communication and detection cable (integrated communication and detection optical cable) is a new generation of submarine optical cable that is sensitive to physical quantities such as sound / temperature / pressure in the surrounding area and can detect surrounding fishing boats (large noise targets) while ensuring the communication transmission performance of the communication optical cable for applications such as submarine optical cable safety monitoring and submarine environment monitoring.

[0003] Limited by the production length limit of the communication and detection cable, in order to complete transoceanic ultra-long-distance communication, there is an urgent need for a communication and detection cable joint box. The joint boxes in the prior art usually use armored or potted forms as the load-bearing structure, and often cannot meet the requirements of a water depth of 2000 meters and a large tensile force of 200 kN.

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

[0005] In addition, although the inside of the joint box is a closed environment, it still contains a large amount of air. The working voltage of the electrical unit of the communication and detection cable is 10 kV. Directly connecting the electrical units is not conducive to the stability and safety of the connection part, and improvement is needed. Summary of the Invention

[0006] The main technical problem to be solved by the present invention is to provide a deep-sea communication and detection cable joint box and an integration method thereof, which improve the sealing performance and overall tensile performance and meet the use requirements of large water depths and large tensile forces.

[0007] To solve the above technical problem, a technical solution adopted by the present invention is: to provide a deep-sea communication and detection cable joint box, including: a bend limiter, an outer cone, an inner cone, end caps, an optical and electrical separation component, a load-bearing frame, a fiber winding box, and a housing. The end caps are arranged at both ends of the inner cavity of the housing. The inner cone is arranged outside the end caps. The outer cone is sleeved outside the inner cone and clamps the armored steel wires on the communication and detection cable. A first connecting screw for connecting with the end cap is arranged on the outer cone. The bend limiter is arranged at both ends of the housing to limit the bending of the communication and detection cable and the position of the outer cone. The load-bearing frame is arranged in the housing and connected between the end caps on both sides. The fiber winding box is arranged in the load-bearing frame for fiber connection of two sections of communication and detection cables. The optical and electrical separation component is arranged in the load-bearing frame and located at the end of the corresponding communication and detection cable. An electrical unit connection part for connecting the optical and electrical separation components on both sides is arranged in the load-bearing frame or the fiber winding box.

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

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

[0010] In a preferred embodiment of the present invention, the seal is a tapered seal sleeve.

[0011] In a preferred embodiment of the present invention, the optoelectronic separation component includes an insulating cover, an insulating box, a first pressing plate, an electrical contact member, and a second pressing plate. The insulating cover is provided at the open end of the insulating box. A second connecting screw for connecting with the insulating cover is provided on the insulating box. 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 outer side of the insulating cover. A light unit outlet corresponding to the cable core inlet and an electrical unit outlet on one side of the light unit outlet are provided on the outer side of the insulating box. The first pressing plate and the second pressing plate are clamped to form an insulating member and placed in the insulating box. Grooves are provided on the inner sides of the first pressing plate and the second pressing plate to form an embedding groove corresponding to the electrical contact member. The electrical contact member includes two conductive blocks, and the two conductive blocks are butt-jointed to clamp the electrical unit on the through-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 cap. Ring grooves corresponding to the limiting ring are provided on the inner sides of the first arc plate and the second arc plate.

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

[0014] In a preferred embodiment of the present invention, a connecting head fixed to the housing by a threaded manner is provided at the end of the bending limiter, and a stepped hole corresponding to the outer cone is provided in the connecting head.

[0015] To solve the above technical problems, a technical solution adopted by the present invention is: to provide an integration method for a joint box, including the following steps: a. A bending limiter, an outer cone, and an inner cone are sequentially installed from one end of a through-probe cable. The end of the through-probe cable is stripped to expose a section of armored steel wire. The armored steel wire is fixed between the inner wall of the outer cone and the outer wall of the inner cone through a cable armor pressing device, and a pre-tightening force is applied. b. Apply silicone grease evenly on the first O-ring and install it into the corresponding installation groove on the outer wall of the end cover. Then, slip the end cover over the through-probe cable. Fix the outer cone and the end cover with the first connecting screw, and make the inner cone fit against the outer end of the end cover. Install the seal and the lock nut in the end cover, and press the seal with the lock nut. c. Install the optoelectronic separation component at the end of the through-probe cable 1. d. Install another through-probe cable according to the above steps. Pass the end of one through-probe cable through the housing. Assemble the two ends of the first arc plate in the load-bearing frame with the end covers on the two through-probe cables respectively through the cooperation of the limit ring and the annular groove, and fix them with the third connecting screw. Fix the fiber optic splice cassette on the first arc plate, complete the splicing of the optical fibers in the two through-probe cables by using the fiber optic splice cassette, and complete the connection of the electrical units in the two through-probe cables through the cooperation of the electrical unit connection part and the optoelectronic separation component. Then, butt the second arc plate against the first arc plate to form a complete load-bearing frame. Push the housing so that the load-bearing frame and the end covers on the two through-probe cables enter the interior of the housing. e. Push the bending limiter towards the housing and complete the connection between the bending limiter and the end of the housing.

[0016] In a preferred embodiment of the present invention, in step c, first slip a heat shrinkable tube and an insulating cover over the end of the through-probe cable, and use the heat shrinkable tube to complete the heat shrink connection between the outer wall of the through-probe cable 1 and the cable core inlet. Then, clamp the two conductive blocks on the electrical contact to the electrical unit of the through-probe cable core and lock them with screws. Snap the first pressing plate and the second pressing plate from the outside of the electrical contact to provide insulation protection for the electrical contact. Install the third O-ring in the corresponding groove at the open end of the insulating box. Lead out the optical fiber from the optical unit outlet and lead out the electrical unit connection part from the electrical unit outlet. Then, install and fix the insulating box and the insulating cover with the second connecting screw.

[0017] The beneficial effects of the present invention are as follows: A deep-sea through-probe cable joint box and its integration method proposed by the present invention have a compact structure, reliable connection, fast integration, and high stability, and can meet the usage requirements of a large water depth of 2000 meters and a working tensile force of 200 kN. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where: Figure 1It is a schematic structural diagram of a preferred embodiment of a deep - sea communication cable joint box of the present invention; Figure 2 is Figure 1 A - A sectional view; Figure 3 is Figure 2 The schematic structural diagram of the optoelectronic separation component in; Figure 4 is Figure 3 Exploded view; Figure 5 It is a schematic diagram of a preferred embodiment of step a in an integration method of a joint box of the present invention; Figure 6 It is a schematic diagram of a preferred embodiment of step b in an integration method of a joint box of the present invention; Figure 7 It is a schematic diagram of a preferred embodiment of step c in an integration method of a joint box of the present invention; Figure 8 It is a schematic diagram of a preferred embodiment of the installation process of the first arc plate during step d in an integration method of a joint box of the present invention; Figure 9 It is a schematic diagram of a preferred embodiment of the installation process of the second arc plate during step d in an integration method of a joint box of the present invention. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 to 9 , the embodiments of the present invention include: As Figure 1 and Figure 2 shown, the deep - sea communication cable joint box includes: a bending limiter 2, an outer cone 3, an inner cone 4, an end cap 5, an optoelectronic separation component 8, a bearing frame 9, a fiber - winding box 10, and a housing 11. The housing 11 can adopt a stainless - steel cylinder structure with good corrosion resistance.

[0021] The end caps 5 are arranged at both ends of the inner cavity of the housing 11. A first O-ring 14 is arranged on the outer circle of the end cap 5. In this embodiment, two first O-rings 14 are adopted to improve the sealing performance of the connection. The inner cone 4 is arranged on the outer side of the end cap 5, and the outer cone 3 is sleeved on the outer side of the inner cone 4, and the armored steel wire 17 on the through exploration cable 1 is clamped. Through the cooperation of the inner conical hole in the outer cone 3 and the conical outer wall of the inner cone 4, the stable clamping and fixing of the armored steel wire 17 are realized, and the anti-disconnection effect is good.

[0022] As Figure 6 shown, a first connecting screw 16 connected to the end cap 5 is arranged on the outer cone 3. Through the first connecting screw 16, the locking of the outer cone 3 is realized, the loosening of the inner cone 4 is avoided, and the tensile resistance effect is improved.

[0023] The bending limiters 2 are arranged at both ends of the housing 11 to limit the bending of the through exploration cable 1. In this embodiment, a connecting head fixed to the housing 11 by a threaded manner is arranged at the end of the bending limiter 2, which is convenient for assembly. A stepped hole corresponding to the outer cone 3 is arranged in the connecting head. After the joint box is assembled, the stepped hole is in a fitting state with the step surface on the outer cone 3 with a T-shaped outer shape, so as to limit the outer cone 3 and further improve the tensile resistance effect.

[0024] As Figure 5 and Figure 6 shown, a jack corresponding to the inner sheath of the through exploration cable 1 is arranged in the end cap 5. A second O-ring 15 is arranged in the jack. When the through exploration cable 1 penetrates through the jack of the end cap 5, through the cooperation of the second O-ring 15 and the inner sheath of the through exploration cable 1, the first sealing of the inner sheath is carried out.

[0025] A conical hole is arranged in the jack. A threaded hole communicated with the conical hole is arranged on the inner side of the end cap 5. A locking nut 7 is arranged in the threaded hole, and a sealing member 6 is arranged in the conical hole. Through the extrusion of the locking nut 7 on the sealing member 6, the second sealing of the inner sheath is carried out, ensuring the sealing effect. In this embodiment, the sealing member 6 adopts a conical sealing sleeve, which can undergo elastic deformation under the extrusion force of the locking nut 7 to improve the sealing effect and meet the use requirements of a large water depth of 2000 meters.

[0026] The load-bearing frame 9 is arranged in the housing 11 and connected between the end caps 5 on both sides. In this embodiment, the load-bearing frame 9 includes a first arc plate 91 and a second arc plate 92. The first arc plate 91 and the second arc plate 92 are combined into a cylindrical structure. The first arc plate 91 and the second arc plate 92 are made of aluminum alloy material to ensure the structural strength and reduce the self-weight.

[0027] A limiting ring 51 extending into the load-bearing frame 9 is provided inside the end cover 5. Corresponding annular grooves 93 are provided on the inner sides of the first arc plate 91 and the second arc plate 92, which are closely matched. The load-bearing frame 9 is used to limit the two end covers 5, improving the tensile resistance effect.

[0028] As Figure 8 and Figure 9 shown, third connecting screws 94 connecting with the limiting ring 51 are provided on the first arc plate 91 and the second arc plate 92, improving the structural stability of the load-bearing frame 9. The load-bearing frame 9 and the housing 11 are used for tensile resistance simultaneously to meet the requirement of working tensile force of 200 kN, improving the stability.

[0029] The fiber coiling box 10 is arranged in the load-bearing frame 9 for connecting the optical fibers 13 of the two-section through-tracing cable 1. The optoelectronic separation component 8 is arranged in the load-bearing frame 9 and located at the end of the corresponding through-tracing cable 1 for separating the optical fiber and the electrical unit. An electrical unit connection part 12 connecting the two optoelectronic separation components 8 is arranged in the load-bearing frame 9 or the fiber coiling box 10. The electrical unit connection part 12 can adopt a wire with an insulating sheath to realize the electrical connection of the two-section through-tracing cable.

[0030] As Figure 3 and Figure 4 shown, the optoelectronic separation component 8 includes an insulating cover 81, an insulating box 82, a first pressing plate 83, an electrical contact 85 and a second pressing plate 84. The insulating cover 81 is arranged at the opening end of the insulating box 82. Second connecting screws 86 connecting with the insulating cover 81 are provided on the insulating box 82, which is convenient for assembly. A third O-ring 87 is arranged at the connection part between the insulating box 82 and the insulating cover 81 for sealing the connection part.

[0031] A cable core inlet 811 is arranged on the outer side of the insulating cover 81, so that the cable core of the through-tracing 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 arranged on the outer side of the insulating box 82. The communication optical fiber is led out through the optical unit outlet 822, and the electrical unit connection part 12 is led out through the electrical unit outlet 821.

[0032] The first pressing plate 83 and the second pressing plate 84 are clamped to form an insulating part and placed into the insulating box 82. Grooves are arranged on the inner sides of the first pressing plate 83 and the second pressing plate 84 to form embedding grooves corresponding to the electrical contact 85. The first pressing plate 83 and the second pressing plate 84 are made of insulating plastic for positioning and insulating protection of the electrical contact 85.

[0033] The electrical contact 85 includes two conductive blocks, and the two conductive blocks are butted to clamp the power supply unit (copper tube) on the through-probe cable 1. A first semi-circular groove 851 corresponding to the copper tube is provided on the inner side of the conductive block, which has a good clamping effect on the power supply unit. The two conductive blocks are locked by screws, and the structure is stable. A second semi-circular groove 852 corresponding to the connection part 12 of the power supply unit is also provided on the inner side of the conductive block to clamp the end of the connection part 12 of the power supply unit, killing two birds with one stone.

[0034] As Figures 5 to 9 shown in the integrated method of the joint box, which includes the following steps: a. Install the bending limiter 2, the outer cone 3 and the inner cone 4 in sequence from one end of a through-probe cable 1, strip the end of the through-probe cable 1 to expose a section of armored steel wire 17, and fix the armored steel wire 17 between the inner wall of the outer cone 3 and the outer wall of the inner cone 4 through a pressing armor device and apply a pre-tightening force; In this embodiment, the cable type of the through-probe 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; b. Apply silicone grease evenly to the first O-ring 14 and install it in the corresponding installation groove on the outer wall of the end cover 5, then install the second O-ring 15 into the jack in the end cover 5, sleuth the end cover 5 on the inner sheath of the through-probe cable 1, and use the second O-ring 15 for the first seal of the inner sheath; Fix the outer cone 3 and the end cover 5 through the first connecting screw 16, and make the inner cone 4 fit with the outer end of the end cover 5, with a stable structure; Install the seal 6 and the locking nut 7 in the end cover 5, press and fix the seal 6 through the locking nut 7 for the second seal of the inner sheath to improve the sealing effect; c. Install the optoelectronic separation component 8 at the end of the through-probe cable 1. Specifically: First, put the heat shrinkable tube 18 and the insulating cover 81 on the end of the through-probe cable 1, and use the heat shrinkable tube 18 to complete the heat shrink connection between the outer wall of the through-probe cable 1 and the cable core inlet 811; Then clamp the two conductive blocks on the electrical contact 85 to the power supply unit of the cable core of the through-probe cable 1 and lock them with screws; Snap the first pressing plate 83 and the second pressing plate 84 from the outside of the electrical contact 85 for insulation protection of the electrical contact 85; Install the third O-ring 87 in the corresponding groove at the open end of the insulating box 82, lead out the optical fiber from the optical unit outlet 822, lead out the connection part 12 of the power supply unit from the power supply unit outlet 821, and then install and fix the insulating box 82 and the insulating cover 81 through the second connecting screw 86, with a stable structure, good airtightness, and meeting the electrical unit connection safety requirements of a working voltage of 10 kV; In addition, corresponding heat shrinkable tubes can be respectively installed on the optical unit outlet 822 and the electrical unit outlet 821 for airtight protection; d. Install another through-probe cable according to the above steps. Pass the end of one through-probe cable 1 through the housing 11. Assemble the two ends of the first arc plate 91 in the load-bearing frame 9 with the end caps 5 on the two through-probe cables 1 respectively through the cooperation of the limit ring 51 and the annular groove 93, as Figure 8 shown, and fix it with the third connecting screw 94. Fix the fiber optic splice cassette 10 on the first arc plate 91. Use the fiber optic splice cassette 10 to complete the splicing of the optical fibers 13 in the two through-probe cables 1. In this embodiment, the 96-core communication optical fiber in the through-probe 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 splicing is completed through the fiber optic splice cassette 10 respectively; Through the cooperation of the electrical unit connection part 12 and the optoelectronic separation component 8, complete the connection of the electrical units in the two through-probe cables 1, as Figure 9 shown, and then butt the second arc plate 92 with the first arc plate 91 to form a complete load-bearing frame 9 with stable structure; Push the housing 11 so that the load-bearing frame 9 and the end caps 5 on the two through-probe cables 1 enter the interior of the housing 11 to ensure the sealing performance; e. Push the bending limiter 2 towards the housing 11 and complete the threaded connection between the bending limiter 2 and the end of the housing 11, which is easy to operate.

[0035] In summary, a deep-sea through-probe cable joint box and its integration method pointed out by the present invention realize the connection of two through-probe cables, and meet the requirements of a large water depth of 2000 meters and a working tensile force of 200 kN. In the field of submarine communication, it has broken through the technologies of large-length and large-capacity transmission of submarine optical cables and the insulation and voltage-withstanding technology of submarine optical cables, and solved the problem of ultra-long-distance transmission in submarine communication systems. In the field of submarine sensing, it has broken through the technologies of adding underwater acoustic detection, submarine communication and detection and sensing to submarine optical cables, and solved the problems of safety monitoring and environmental perception in the deep sea.

[0036] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A deep-sea exploration cable joint box for connecting two sections of exploration cables (1), characterized in that, Comprising: A bend limiter (2), an outer cone (3), an inner cone (4), end caps (5), an optoelectronic separation component (8), a load-bearing frame (9), a fiber coiling box (10) and a housing (11). The end caps (5) are arranged at both ends of the inner cavity of the housing (11). The inner cone (4) is arranged outside the end cap (5). The outer cone (3) is sleeved outside the inner cone (4) and clamps the armored steel wire (17) on the through exploration cable (1). A first connecting screw (16) connected to the end cap (5) is arranged on the outer cone (3). The bend limiter (2) is arranged at both ends of the housing (11) to limit the bending of the through exploration cable (1) and limit the outer cone (3). The load-bearing frame (9) is arranged in the housing (11) and connected between the end caps (5) on both sides. The fiber coiling box (10) is arranged in the load-bearing frame (9) to connect the optical fibers (13) of the two sections of through exploration cable (1). The optoelectronic separation component (8) is arranged in the load-bearing frame (9) and located at the end of the corresponding through exploration cable (1). An electrical unit connection part (12) connecting the two optoelectronic separation components (8) is arranged in the load-bearing frame (9) or the fiber coiling box (10).

2. The deep-sea exploration cable joint box according to claim 1, wherein, A first O-ring (14) is arranged on the outer circle of the end cap (5). A jack corresponding to the inner sheath of the through exploration cable (1) is arranged in the end cap (5). A second O-ring (15) is arranged in the jack.

3. The deep-sea exploration cable joint box according to claim 2, characterized in that, A section of tapered hole is arranged in the jack. A threaded hole communicating with the tapered hole is arranged inside the end cap (5). A locking nut (7) is arranged in the threaded hole. A seal (6) is arranged in the tapered hole.

4. The deep-sea exploration cable joint box according to claim 3, characterized in that, The seal (6) adopts a tapered seal sleeve.

5. The deep-sea exploration cable joint box according to claim 4, wherein, The optoelectronic separation component (8) includes an insulating cover (81), an insulating box (82), a first pressing plate (83), an electrical contact (85) and a second pressing plate (84). The insulating cover (81) is arranged at the opening end of the insulating box (82). A second connecting screw (86) connected to the insulating cover (81) is arranged on the insulating box (82). A third O-ring (87) is arranged at the connection between the insulating box (82) and the insulating cover (81). A cable core inlet (811) is arranged outside the insulating cover (81). 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 arranged outside the insulating box (82). The first pressing plate (83) and the second pressing plate (84) are clamped to form an insulating part and placed into the insulating box (82). Grooves are arranged inside the first pressing plate (83) and the second pressing plate (84) 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 to clamp the electrical unit on the through exploration cable (1).

6. The deep-sea exploration cable joint box according to claim 1, wherein The load-bearing frame (9) includes a first arc plate (91) and a second arc plate (92). The first arc plate (91) and the second arc plate (92) are combined into a cylindrical structure. A limiting ring (51) extending into the load-bearing frame (9) is arranged on the inner side of the end cover (5). A ring groove (93) corresponding to the limiting ring (51) is arranged on the inner sides of the first arc plate (91) and the second arc plate (92).

7. The deep-sea exploration cable joint box according to claim 6, characterized in that, A third connecting screw (94) connected to the limiting ring (51) is arranged on the first arc plate (91) and the second arc plate (92).

8. The deep-sea exploration cable joint box according to claim 1, characterized in that, A connecting head fixed to the housing (11) in a threaded manner is arranged at the end of the bending limiter (2). A stepped hole corresponding to the outer cone (3) is arranged in the connecting head.

9. An integration method for a splice closure, characterized in that, It includes the following steps: a. Strip the end of the through exploration cable (1) to expose a section of armored steel wire (17). Fix the armored steel wire (17) between the inner wall of the outer cone (3) and the outer wall of the inner cone (4) through a cable armoring device and apply a pre-tightening force; b. Sleeve the end cover (5) on the through exploration cable (1), and fix the outer cone (3) and the end cover (5) through the first connecting screw (16); c. Install the optoelectronic separation component (8) at the end of the through exploration cable (1); d. Install another through exploration cable according to the above steps. Assemble the two ends of the first arc plate (91) in the load-bearing frame (9) with the end covers (5) on the two through exploration cables (1) respectively through the cooperation of the limiting ring (51) and the ring groove (93). Fix the fiber optic cable distribution box (10) on the first arc plate (91). Complete the splicing of the optical fibers (13) in the two through exploration cables (1) by using the fiber optic cable distribution box (10). Complete the connection of the electrical units in the two through exploration cables (1) through the cooperation of the electrical unit connection part (12) and the optoelectronic separation component (8). Then butt the second arc plate (92) with the first arc plate (91) to form a complete load-bearing frame (9); Push the housing (11) so that the load-bearing frame (9) and the end covers (5) on the two through exploration cables (1) enter the interior of the housing (11); e. Push the bending limiter (2) towards the housing (11) and complete the connection between the bending limiter (2) and the end of the housing (11).

10. The integration method of the joint box according to claim 9, characterized in that, In step c, first sleeve a heat shrinkable tube (18) and an insulating cover (81) at the end position of the through exploration cable (1), and use the heat shrinkable tube (18) to complete the heat shrink connection between the outer wall of the through exploration cable (1) and the cable core inlet (811); Then clamp the two conductive blocks on the electrical contact part (85) to the electrical unit of the cable core of the through exploration cable (1) and lock them with screws; Snap the first pressing plate (83) and the second pressing plate (84) from the outside of the electrical contact part (85) to provide insulation protection for the electrical contact part (85); Install and fix the insulating box (82) and the insulating cover (81) through the second connecting screw (86).

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