A deep-sea pluggable optoelectronic connection component

Abstract

The present invention provides a deep-sea pluggable optoelectronic connection assembly, comprising a plug device and a socket device; the plug device comprises a plug housing, a plug cavity plate, a plug end sealing component, a plug electrical pin, and a plug optical fiber pin; one end of the plug electrical pin is connected to a first external electrical cable, and one end of the plug optical fiber pin is connected to the first external optical cable; the socket device comprises a socket electrical pin and a socket optical fiber pin; one end of the socket electrical pin is connected to a second external electrical cable, and one end of the socket optical fiber pin is connected to the second external optical cable; when the plug device moves toward the socket device for connection, the end of the socket device abuts and pushes the plug end sealing component toward the plug housing, electrically connecting the other end of the plug electrical pin to the other end of the socket electrical pin; the plug end pin connection hole is connected to the plug end pin through hole, and the other end of the plug optical fiber pin passes through the plug end pin connection hole and is electrically connected to the other end of the socket optical fiber pin of the socket device. The present invention can protect the optical fiber pin.

Description

Technical Field

[0001] The present invention relates to the field of underwater equipment parts, and in particular to a deep-sea plug-in optoelectronic connection component. Background Art

[0002] In the early 1980s, the use of connectors abroad expanded from surface to underwater. To adapt to this new environment, oil-filled, pressure-balanced underwater connectors were introduced. These compact, watertight connectors made deep-sea applications possible. With the rapid development of marine science and the establishment of permanent, wired submarine observatories abroad for a new round of ocean exploration and development, underwater connectors emerged as a valuable asset, providing reliable underwater connections between observatories and communication cables. Underwater connectors offer unparalleled advantages in facilitating the installation, maintenance, and reassembly of system components. As submarine observatories expand their seabed coverage and generate more data, this has driven continuous innovation in underwater connectors. Today, countries like the United States, the United Kingdom, and Japan all have their own submarine observatories, and underwater connectors are essential for establishing these new types of stations. At present, foreign underwater plug-in connectors have developed from a single variety at the beginning to various types of powerful improved products, such as all-optical and optoelectronic hybrid connectors; from low-power connectors to high-power, high-voltage, multi-core connectors.

[0003] Deep-sea pluggable optoelectronic connection systems are essential for ensuring the proper functioning of underwater equipment and are key components in seabed observation networks, energy exploration, and underwater power distribution. They enable the transmission of optical and electrical signals, as well as mechanical connections. Traditionally advanced underwater connectors in China utilize a four-core structure with a maximum operating depth of 2,000 meters. Existing optoelectronic integrated deep-sea in-situ wet-pluggable optoelectronic connectors are relatively outdated and lack adequate protection for the fiber optic pins within the plug assembly. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and to provide a deep-sea pluggable optoelectronic connection assembly.

[0005] To achieve the above objectives, the present invention adopts the following specific technical solutions:

[0006] The deep-sea pluggable optoelectronic connection system proposed by the present invention comprises: a plug device and a socket device;

[0007] The plug device includes a plug housing, a plug cavity plate, a plug end sealing component, at least two juxtaposed plug electrical pins and at least four juxtaposed plug optical fiber pins;

[0008] The plug housing is a cylindrical structure with a plug opening at one end;

[0009] One end of the plug electrical pin and the plug optical fiber pin are both fixed to the bottom of the plug shell, and one end of the plug electrical pin is connected to the external first cable, and one end of the plug optical fiber pin is connected to the external first optical cable;

[0010] The socket device includes a socket electrical pin whose number is equal to the plug electrical pin and a socket optical fiber pin whose number is equal to the plug optical fiber pin; one end of the socket electrical pin is connected to the external second cable, and one end of the socket optical fiber pin is connected to the external second optical cable;

[0011] The plug cavity plate and the plug end sealing component are coaxially and fixedly connected to each other and are slidably connected to each other along the axial direction of the plug housing.

[0012] The barrel bottom of the plug housing elastically supports the plug chamber plate;

[0013] The plug end sealing component includes a first rubber shell and a first base plate;

[0014] The first bottom plate is fixedly connected to the plug cavity plate, the first rubber shell is coaxially arranged with the first bottom plate, and the first rubber shell is rotatably connected to the first bottom plate;

[0015] The first rubber shell is provided with plug end pin connection holes, the positions of which correspond one to one with the plug optical fiber pins and the plug electrical pins, and the first bottom plate is provided with plug end pin through holes, the number of which is equal to the number of the plug end pin connection holes;

[0016] A first torsion spring is installed between the first bottom plate and the first rubber housing. Under the action of the first torsion spring, the plug end pin connection hole and the plug end pin through hole are misaligned with each other when the plug device is in a non-operating state.

[0017] When the first rubber housing rotates around the axis of the first bottom plate to a first communication position, the plug-end pin connection hole is communicated with the plug-end pin through hole;

[0018] The plug cavity plate provides an oil sac cavity with the same number as the optical fiber pins of the plug. The oil sac cavity is a cavity structure with an opening at one end, and the opening is connected to the pin through hole at the plug end; the oil sac cavity is filled with silicone oil;

[0019] The other end of the plug electrical pin passes through the plug cavity plate and is inserted into the first bottom plate;

[0020] When the plug device is in a non-working state, the other end of the plug optical fiber pin is placed in the plug cavity;

[0021] When the plug device moves toward the socket device for connection, the end of the socket device fits and pushes the plug end sealing component close to the bottom of the plug shell; after the plug end pin connecting hole is connected with the plug end pin through hole, the other end of the plug electrical pin is electrically connected to the other end of the socket electrical pin of the socket device, and the other end of the plug optical fiber pin passes through the plug end pin connecting hole and is electrically connected to the other end of the socket optical fiber pin of the socket device; the plug shell and the socket shell lock the moving distance of the plug device and the socket device to each other through the locking piece.

[0022] The present invention can achieve the following technical effects:

[0023] In the process of connecting the plug device and the socket device of the present invention, the plug optical fiber pin can be effectively sealed in the plug device until the first rubber shell is abutted by the socket device, and the plug end pin connecting hole and the plug end pin through hole can be connected to allow the plug optical fiber pin to extend out of the plug device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the appearance of a plug device and a socket device according to an embodiment of the present invention;

[0025] Figure 2 is a partial cross-sectional view of a plug device according to an embodiment of the present invention;

[0026] Figure 3 is a partial cross-sectional view of a socket device according to an embodiment of the present invention;

[0027] Figure 4 is a full cross-sectional view of an electrical plug of a socket according to an embodiment of the present invention;

[0028] Figure 5 is a schematic diagram of the overall structure of the plug end sealing component of an embodiment of the present invention;

[0029] Figure 6 1 is a schematic diagram of the split structure of the plug end sealing component according to an embodiment of the present invention;

[0030] Figure 7 is a schematic structural diagram of a plug cavity according to an embodiment of the present invention;

[0031] Figure 8 is a perspective view of a socket oil bag according to an embodiment of the present invention;

[0032] Figure 9 is a schematic structural diagram of a plug end cover according to an embodiment of the present invention;

[0033] Figure 10 is a front structural diagram of a plug device according to an embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of the rotation principle of the plug end sealing component according to an embodiment of the present invention;

[0035] Figure 12 is a structural schematic diagram of a first base plate according to an embodiment of the present invention;

[0036] Figure 13 2 is a schematic structural diagram of a first rubber housing according to an embodiment of the present invention.

[0037] Figure 14 It is a schematic diagram of the socket electrical pin structure in the socket device according to an embodiment of the present invention.

[0038] The reference numerals include: handle 1, flexible connection part 2, support rod 3, elbow 4, plug end sealing component 5, socket end sealing component 6, plug end cover 7, plug chamber plate body 8, plug oil bag 9, plug guide rail 11, plug shell 12, plug inner shell slider 13, hole 14, plug and unplug rail 15, plug and unplug slider 16, plug photoelectric fixing plate 17, plug optical fiber pin 18, plug electrical pin 19, first spring 20, plug chamber 21, oil bag through hole 22 , socket water inlet 23, plug water inlet 24, socket housing 25, slot 26, snap ring 27, socket oil sac 28, socket oil sac housing 28-1, socket oil sac spring assembly 28-2, socket oil sac support seat 28-3, socket electrical pin body 29, socket optical fiber pin 30, socket housing body 31, socket flange 32, sealing block 35, socket housing support wall 37, metal bushing 38, inlet sleeve 39, sliding pin spring 40, main sleeve 41, sliding pin 42;

[0039] First base plate 5-1, first pin through hole 5-11, first rotating shaft 5-12, first brake through hole 5-13, first stop bar 5-14, first torsion spring mounting slot 5-15, first rubber housing 5-2, plug-end pin connection hole 5-21, plug-end rotation through hole 5-22, first end cover groove 5-23, first torsion spring assembly slot 5-24, first avoidance slot 5-25, first slot 5-251, first torsion spring 5-3, brake lever 5-4, first end cover 5-5;

[0040] Second bottom plate 6-1 and second rubber shell 6-2. DETAILED DESCRIPTION

[0041] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, identical modules are denoted by identical reference numerals. In the case of identical reference numerals, their names and functions are also identical. Therefore, their detailed description will not be repeated.

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation of the present invention.

[0043] The following combination Figures 1 to 14 The specific working mode of the present invention is described in detail:

[0044] The present invention provides a deep-sea pluggable optoelectronic connection assembly, comprising a first optoelectronic system, a second optoelectronic system, a pluggable plug device, and a socket device. The first optoelectronic system includes a first optical cable and a first electrical cable. The second optoelectronic system includes a second optical cable and a second electrical cable. The first and second optoelectronic systems are connected to external electrical cables and optical cables, respectively. The deep-sea pluggable optoelectronic connection system of the present invention enables connection between external optical cables and electrical cables in deep-sea environments.

[0045] Figure 1 The external appearance of the plug device and the socket device are shown, and the plug device and the socket device are arranged opposite to each other. Figure 2 The internal details of the plug device are shown. Figure 1-2 and Figure 10 As shown, the plug device includes a plug housing, a plug cavity plate, a plug end sealing component, at least two juxtaposed plug electrical pins and at least four juxtaposed plug optical fiber pins;

[0046] Among them, the plug electrical pin 19 is made of beryllium copper material; beryllium copper material has good electrical conductivity and excellent elasticity, which meets the electrical performance requirements while also being resistant to vibration and impact.

[0047] Among them, the plug shell 12 is a cylindrical structure with a plug opening at one end, and the cylinder wall material is titanium alloy. The plug opening faces the socket device. The opening is set as the front direction of the plug device, and the cylinder bottom direction is set as the rear direction of the plug device. The plug optoelectronic fixing plate 17 is located at the rear direction of the cylinder wall of the plug shell 12 and is fixedly installed on the plug shell 12. The plug optoelectronic fixing plate 17 is made of ceramic material; the plug optoelectronic fixing plate 17 fixes at least two plug electrical pins 19 and at least four plug optical fiber pins 18 on the cylinder bottom; one end of the plug electrical pin and the plug optical fiber pin are both fixed on the cylinder bottom of the plug shell, and one end of the plug electrical pin is connected to the first external cable, and one end of the plug optical fiber pin is connected to the first external optical cable;

[0048] The plug cavity plate and the plug end sealing component, located within the plug housing, are coaxially and fixedly connected. The plug cavity plate and the plug housing are slidably connected along the plug housing's axial direction. The plug housing's cylindrical bottom elastically supports the plug cavity plate. Specifically, a first spring 20 abuts the plug cavity plate and the cylindrical bottom of the plug housing 12. The plug cavity plate and the plug housing 12 are coaxially sleeved with a gap.

[0049] The plug cavity plate provides an equal number of oil pocket chambers as the plug optical fiber pins. Each oil pocket chamber has an opening at one end, which communicates with the plug pin through-holes. Silicone oil is contained in the oil pocket chamber. The opening allows the plug optical fiber pins to pass through the plug pin through-holes on the first base.

[0050] For plug cavity plates preferred, such as Figure 7 As shown, a plug chamber 21 filled with silicone oil is provided in the plug chamber plate, and a plug oil bag 9 is built into the oil chamber 21. The plug oil bag 9 is wrapped with silicone oil. When the plug oil bag 9 works underwater, seawater can enter the plug oil bag 9.

[0051] The plug cavity plate includes a fixed plug end cap 7 and a plug cavity plate body 8. Inside the plug housing 12, arranged from the inside out, are the first spring, plug end cap 7, plug cavity plate body 8, and plug end sealing component 5. A gap is left between the plug end cap 7 and the bottom of the plug housing 12.

[0052] The plug cavity plate body 8 is provided with oil bag through holes 22, the number of which is equal to the number of the plug optical fiber pins 18. Figure 7 As shown, the shape of the oil bag through hole 22 is preferably gourd-shaped, that is, two circular through holes, but the upper and lower parts of the two circular through holes overlap. One end of the oil bag through hole 22 is sealed by the plug end cover 7 to form an open chamber structure, and the other end of the oil bag through hole 22 forms the opening, and the position of the other end of the oil bag through hole 22 corresponds to the position of the plug end pin through hole on the first base. The oil bag through hole 22 is filled with silicone oil, and a plug oil bag 9 with an opening at one end is placed inside the oil chamber 21. The expansion and contraction deformation of the plug oil bag 9 itself is adjusted by silicone oil and seawater to balance the pressure difference between the inside and outside of the plug device. As shown Figure 9 As shown, the plug end cap 7 is provided with holes 14, the same number as the plug fiber ferrules 18. The opening of the plug oil sac 9 is connected to and positioned correspondingly with the holes 14, allowing seawater in the plug housing 12 to enter the plug oil sac 9 through the holes 14. The plug housing 12 is provided with a plug water inlet 24 near the bottom of the barrel to further facilitate the entry of seawater into the plug housing 12.

[0053] The plug chamber plate body 8 is shaped like a flange structure, with a flange placed in front. To facilitate the insertion of the first spring 20 onto the plug chamber plate body 8, the two ends of the first spring 20 abut against the bottom of the cylinder and the flange. Two plug inner shell sliders 13 are evenly distributed around the circumference of the flange, and the plug outer shell 12 is provided with two plug guide rails 11 with through-hole structures, facilitating the sliding connection between the plug inner shell assembly and the plug outer shell 12. The plug guide rails 11 also serve as water inlet holes. The plug inner shell sliders 13 and the plug guide rails 11 limit the relative range and direction of movement of the plug outer shell 12 and the plug chamber plate.

[0054] In the non-working state, the plug electrical pin 19 is fixed in the plug shell 12. One end of the plug electrical pin 19 is fixed on the bottom of the plug shell 12, and passes through the plug cavity plate in turn to enter the plug end sealing component 5, waiting for the first rubber shell to rotate.

[0055] In the non-working state, the plug optical fiber pin 18 is fixed in the plug housing 12. One end of it is fixed to the bottom of the plug housing 12 and inserted into the oil chamber. When connected, the other end of the plug optical fiber pin passes through the plug end sealing component 5.

[0056] Preferably, an insertion and extraction track 15 is provided on the inner wall of the plug shell 12 along its length direction, and an insertion and extraction slider 16 is provided on the outer surface of the socket shell 25. The insertion and extraction track 15 and the insertion and extraction slider 16 cooperate to play a guiding role, which is conducive to accurate insertion and extraction of the two shells.

[0057] Preferably, the plug device further includes a handle assembly. The handle assembly comprises a handle 1, a flexible connection portion 2, and support rods 3. The handle assembly is disposed at the end of the plug device away from the socket device. The handle 1 is flexibly and fixedly connected to the support rods 3 via the flexible connection portion 2. The flexible connection portion 2 is made of a flexible material. At least two support rods 3 are evenly distributed and fixedly disposed on the plug housing.

[0058] Preferably, the plug device further includes a curved tube 4 for protecting the first optical cable and the first electrical cable; the ends of the curved tube 4 are sealed and fixedly connected to the exterior of the plug device. The curved tube 4 is mounted behind the plug housing 12, which has a wall extending rearward. The extended wall and bottom of the housing form an open chamber sealed by the curved tube.

[0059] Wherein, the plug end sealing component includes a first rubber shell and a first bottom plate;

[0060] One end surface of the first base plate is in contact with and fixedly connected to the plug cavity plate, the first rubber shell is coaxially arranged with the first base plate, and the first rubber shell is rotatably connected to the other end surface of the first base plate;

[0061] The first rubber shell is provided with a number of plug-end pin connection holes equal to the number of plug optical pins and plug electrical pins, and the first bottom plate is provided with a number of plug-end pin through holes equal to the number of plug-end pin connection holes. The plug-end pin through holes are mainly for the passage of plug electrical pins and plug optical pins, and the plug-end pin connection holes on the first rubber shell are connected to the plug-end pin through holes; the first bottom plate and the plug chamber plate body 8 can be made into an integral structure, for example Figure 2 When integrated, the cross-sectional shape of the plug-end pin through hole of the first base plate is consistent with the cross-sectional shape of the oil bag through hole 22.

[0062] A first torsion spring is installed between the first bottom plate and the first rubber housing. Under the action of the first torsion spring, the plug end pin connection hole and the plug end pin through hole are misaligned with each other when the plug device is in a non-operating state.

[0063] When the first rubber housing rotates around the axis of the first bottom plate to a first communication position, the plug-end pin connection hole is communicated with the plug-end pin through hole;

[0064] The other end of the plug electrical pin passes through the plug cavity plate and is inserted into the plug end sealing component;

[0065] When the plug device is in a non-working state, the other end of the plug optical fiber pin is placed in the plug cavity.

[0066] The socket device includes a socket electrical pin whose number is equal to the plug electrical pin and a socket optical fiber pin whose number is equal to the plug optical fiber pin; one end of the socket electrical pin is connected to the external second cable, and one end of the socket optical fiber pin is connected to the external second optical cable;

[0067] When the plug device moves toward the socket device for connection, the end of the socket device abuts and pushes the plug-end sealing component toward the bottom of the plug housing. After the plug-end pin connection hole connects with the plug-end pin through-hole, the other end of the plug electrical pin extends to electrically connect with the other end of the socket electrical pin of the socket device; the other end of the plug optical fiber pin passes through the plug-end pin connection hole and electrically connects with the other end of the socket optical fiber pin of the socket device. Because the end of the socket device abuts the first rubber housing, and the first rubber housing remains tightly against the socket device under the action of the first spring, this design seals and protects the plug optical fiber pin and the plug electrical pin, facilitating the extension of both pins from the plug device into the socket device. Finally, the plug housing and the socket housing mutually lock the moving distance of the plug device and the socket device through a locking member. The structure of the socket device can be referred to in the prior art or in the subsequent embodiments herein.

[0068] The corresponding plug end sealing component 5 is preferably, Figure 5-6 、 Figure 12-13 The overall structure, the split structure, and the structures of the first bottom plate 5 - 1 and the first rubber shell 5 - 2 of the plug end sealing component 5 provided in an embodiment of the present invention are respectively shown.

[0069] like Figures 1-4As shown, the embodiment of the present invention includes a brake rod 5-4, a plug end sealing component 5 including: a first base plate 5-1, a first rubber shell 5-2, a first torsion spring 5-3 and a first end cover 5-5, the first rubber shell 5-2 is coaxially assembled on the first base plate 5-1 and can rotate around the other end surface of the first base plate 5-1, a plug end pin through hole 5-11 is opened on the first base plate 5-1, a plug end pin connection hole 521 is opened on the first rubber shell 5-2, and the first torsion spring 5-3 is provided. -3 is installed between the first bottom plate 5-1 and the first rubber shell 5-2. The two ends of the first torsion spring 5-3 are respectively in contact with the first bottom plate 5-1 and the first rubber shell 5-2. The first torsion spring 5-3 is used to apply a torsional force to the first bottom plate 5-1 and the first rubber shell 5-2, so that the plug-end pin through hole 5-11 and the plug-end pin connecting hole 521 are misaligned with each other in the initial state, ensuring that seawater cannot pass through between the plug-end pin through hole 5-11 and the plug-end pin connecting hole 521.

[0070] The first rubber shell 5-2 is adapted to the shape of the first bottom plate 5-1. As shown in the figure, the first rubber shell 5-2 and the first bottom plate 5-1 are circular.

[0071] A first rotating shaft 5-12 for realizing the rotation of the first rubber shell 5-2 is formed at the center position of the first base plate 5-1, and a first braking through hole 5-13 for the brake rod 5-4 to pass through is also provided on the first base plate 5-1. A first blocking bar 5-14 for limiting the first rubber shell 5-2 is provided at a position close to the brake rod through hole 13 on the first base plate 5-1, and a first torsion spring mounting groove 5-15 for mounting the first torsion spring 5-3 is provided on a side of the first base plate 5-1 facing the rubber shell 2 and surrounding the first rotating shaft 5-12.

[0072] A first rotating through hole 5-22 is opened at the center position of the first rubber shell 5-2. The aperture of the first rotating through hole 5-22 is slightly larger than the diameter of the first rotating shaft 5-12, so that the first rotating shaft 5-12 can pass through the first rotating through hole 5-22. Through the cooperation between the first rotating shaft 5-12 and the first rotating through hole 5-22, the first rubber shell 5-2 and the first base plate 5-1 are assembled.

[0073] An end cover groove 5-23 is provided on the side of the first rubber shell 5-2 facing away from the first base plate 5-1, and the first end cover 5-5 is snapped into the end cover groove 5-23 to prevent the rubber shell 2 from falling off the first rotating shaft 5-12.

[0074] The length of the first rotating shaft 5-12 is less than or equal to the difference between the thickness of the first rubber shell 5-2 and the depth of the end cover groove 5-23, ensuring that the first end cover 5-5 can be snapped into the end cover groove 5-23.

[0075] A first torsion spring assembly groove 5-24 is provided on one side of the first rubber shell 5-2 facing the first base plate 5-1 at a position corresponding to the first torsion spring installation groove 5-15. When the first base plate 5-1 and the first rubber shell 5-2 are assembled together, the first torsion spring installation groove 5-15 and the first torsion spring assembly groove 5-24 form an installation space for the first torsion spring 5-3. One end of the first torsion spring 5-3 is installed in the first torsion spring installation groove 5-15, and the other end of the first torsion spring 5-3 is installed in the first torsion spring assembly groove 5-24. In the absence of external force, the torsion force applied by the two ends of the first torsion spring 5-3 can cause the plug-end pin through hole 5-11 and the plug-end pin connecting hole 521 to be misaligned with each other.

[0076] A first escape groove 5-25 is also defined in the first rubber housing 5-2, which cooperates with the brake lever to drive the first rubber housing 5-2 to rotate. The first torsion spring 5-3 causes the plug-end pin through-hole 5-11 to misalign with the plug-end pin connection hole 5-21. This misalignment also occurs between the first escape groove 5-25 and the first brake through-hole 5-13, preventing seawater from passing between the first brake through-hole 5-13 and the first escape groove 5-25. The first escape groove 5-25 can be shaped like a fan, square, or triangle, with the fan-shaped configuration shown in the figure. The first escape groove 5-25 creates a fan-shaped gap in the rubber housing 2.

[0077] The other end of the brake rod 5-4 is fixed on the plug shell, and one end thereof passes through the plug chamber plate; the other end of the brake rod 5-4 is a wedge structure. When the plug end sealing component approaches the bottom of the plug shell, the brake rod passes through the plug chamber plate and the first brake through hole in turn, and the wedge structure abuts against one end face of the first avoidance groove 5-25 to drive the first rubber shell to rotate to the first connecting position, thereby realizing the connection between the plug end pin connection hole and the plug end pin through hole.

[0078] The brake rod 5-4 is used to drive its other end to move back and forth to push the first rubber shell 5-2 to rotate. The two form a rotating wedge structure, and the specific structure of the wedge field can be referred to. Preferably, as Figure 11 As shown, the other end of the brake rod 5-4 is a slope, and the tip is first inserted into the first avoidance groove 5-25, and then the slope presses one end face of the first avoidance groove 5-25. As the brake rod 5-4 continues to move forward, different positions on the slope abut against the end face, so that the distance between the tip and the end face of the first avoidance groove 5-25 becomes larger and larger, and finally the inclined wedge structure is completely inserted into the first avoidance groove 5-25. Figure 11 In the figure, the solid line represents the brake rod 5-4 just inserted into the first avoidance groove 5-25, and the dotted line represents the brake rod 5-4 continuing to move. Preferably, the side of the first avoidance groove 5-25 that contacts the inclined surface is chamfered, and the inclination angle of the chamfer is consistent with that of the inclined surface, so as to facilitate better driving of the two.

[0079] A first stop bar 5-14 is provided on the first base plate and inserted into the first avoidance groove 5-25. In the non-operating state, one end surface of the first avoidance groove 5-25 abuts the first stop bar 5-14. When the first rubber housing 5-2 rotates to the first connection position under the drive of the brake lever, the other end surface of the first avoidance groove abuts the first stop bar. The first stop bar 5-14 limits the range of motion of the first rubber housing 5-2, facilitating precise switching between the first connection position and the initial position. The first stop bar 5-14 abuts one end surface of the first avoidance groove 5-25 to prevent the rubber housing 2 from excessively rotating. If the rubber housing 2 rotates excessively, end surface A will not align with the first brake hole 5-13. As a result, the brake lever 5-4, after being inserted into the first brake hole 5-13, cannot extend from the first avoidance groove 5-25, thereby preventing the rubber housing 2 from rotating counterclockwise.

[0080] In order to facilitate the brake rod 5-4 to extend from the first avoidance groove 5-25, a first slot 5-251 is opened on the A end face of the first avoidance groove 5-25. The first slot 5-251 forms a gap between the first baffle 5-14 and the A end face, making it easier for the brake rod 5-4 to extend from the first avoidance groove 5-25.

[0081] The opening shape of the first braking through hole 5-13 is adapted to the shape of the brake rod 5-4. The brake rod 5-4 can be either a cylindrical structure or a prismatic structure, or a structure combining a cylinder and a prism. The figure shows the brake rod 5-4 as a combination of a cylinder and a prism. One part of the brake rod 5-4 is a cylinder, and the other part is a quadrangular prism. The quadrangular prism part is inserted into the first braking through hole 5-13 and passes through the first avoidance groove 5-25. The opening shape of the first braking through hole 5-13 is a quadrilateral adapted to the quadrangular prism.

[0082] The end surface of the first braking through hole 5-13 inserted into the first braking through hole 5-13 is a wedge surface. When the wedge surface contacts the A end surface of the first avoidance groove 5-25, the rubber housing 2 can be rotated around the first rotating shaft 5-12.

[0083] During use, when the brake rod 5-4 is not inserted into the first brake through hole 5-13, the torsion applied by the first torsion spring 5-3 causes the rubber shell 2 to rotate clockwise around the first rotating shaft 5-12, and the plug end pin through hole 5-11 and the plug end pin connecting hole 521 are misaligned, and the underwater rotary sealing device is in a sealed state.

[0084] When the brake rod 5-4 is inserted into the first brake through hole 5-13 and the wedge surface of the brake rod 5-4 contacts the A end surface of the first avoidance groove 5-25, the rubber shell 2 rotates counterclockwise around the rotating shaft 11, and the pin connecting hole is connected to the pin through hole, so that the pin of the optical fiber or cable can pass through smoothly to achieve docking.

[0085] When the brake rod 5-4 is pulled out, the rubber housing 2 is reset under the force of the first torsion spring 5-3, the plug-end pin through hole 5-11 and the plug-end pin connecting hole 521 are misaligned again, and the socket device is in a sealed state again.

[0086] In a preferred embodiment of the present invention, the socket device includes a socket oil bag 28, a number of socket electrical pins equal to the plug electrical pins 19, and a number of socket optical fiber pins 30 equal to the plug optical fiber pins 18.

[0087] The socket oil bag 28 is filled with silicone oil, and the socket oil bag 28 has an oil bag spring built in. The oil bag spring elastically supports both ends of the socket oil bag 28, so that the volume of the socket oil bag 28 is variable;

[0088] The optical fiber pin 30 of the socket is inserted into the socket oil bag 28 to be protected;

[0089] One end of the plug optical fiber pin 18 is connected to the external first optical cable, and one end of the plug electrical pin 19 is connected to the external first electrical cable; one end of the socket electrical pin is connected to the external second cable, and one end of the socket optical fiber pin 30 is connected to the external second optical cable; after the plug device and the socket device are connected, the other end of the plug electrical pin 19 and the other end of the socket electrical pin are electrically connected to realize the electrical connection between the first cable and the second cable, and the other end of the plug optical fiber pin 18 and the other end of the socket optical fiber pin 30 are electrically connected to realize the electrical connection between the first optical cable and the second optical cable.

[0090] When the socket assembly enters seawater, the socket oil bladder 28 comes into contact with the seawater. The water pressure from the seawater compresses the bladder 28 to deform. The greater the seawater pressure, the greater the deformation. When the seawater compresses the bladder 28 inward, the silicone oil inside the bladder 28 flows, forming an oil path. When the silicone oil flows to the socket electrical and optical fiber pins, it cleans the pins to a certain extent. The plug assembly's oil chamber 21 is filled with seawater inside and silicone oil outside. When the plug assembly enters seawater, the seawater pressure compresses the plug oil bladder 9 to deform, thereby equalizing the pressure in the oil chamber 21.

[0091] Figure 3 Internal details of the socket arrangement are shown.

[0092] like Figure 3 As shown, the socket device includes a socket outer shell 25 and a socket inner shell assembly. The socket inner shell assembly includes a socket end sealing component 6 and a socket oil sac fixed within the socket outer shell 25. The socket end sealing component 6 is fixedly connected to the socket oil sac. The end of the socket device away from the socket opening is connected to the second optoelectronic system.

[0093] The socket housing 25 comprises a main body 31 and a flange 32. The main body 31 is a cylindrical structure made of titanium alloy; the flange 32 is mounted on the outer cylindrical surface of the main body 31. A support wall 37 within the main body 31 divides the interior of the socket housing 25 into a front cavity and a rear cavity; the front cavity is located near the socket opening.

[0094] Preferably, an external thread and a sealing ring are further provided on the outer cylindrical surface of the socket housing body 31 for connection with other devices.

[0095] Preferably, the socket flange 32 is fixedly connected to the socket housing 25 by means of screw tightening and interference fit of positioning pins.

[0096] The socket inner housing assembly is fixedly mounted within the socket housing 25 and connected to the second optoelectronic system. It includes the socket end sealing component 6, the socket optoelectronic mounting plate 36, and the socket oil sac 28. Within the front cavity of the socket housing 25, the socket end sealing component 6 and the socket oil sac are fixedly connected in sequence. The socket oil sac 28 is fixedly mounted to the socket housing support wall 37. The socket optoelectronic mounting plate 36 is made of ceramic. More specifically, one end surface of the socket housing support wall 37 is in contact with and fixedly connected to the socket oil sac 28, while the other end surface is fixedly connected to the socket optoelectronic mounting plate 36.

[0097] in, Figure 8 Shows the internal structure of the socket oil bag portion 28; Figure 8 As shown, the socket oil bladder 28 is used to balance the pressure difference between the socket assembly and the outside world. The socket oil bladder 28 comprises a socket oil bladder housing 28-1, a socket oil bladder support seat 28-3, and a socket oil bladder spring assembly 28-2. The socket oil bladder support seats 28-3 are fixed to both end surfaces of the socket oil bladder housing 28-1. The socket oil bladder spring assembly 28-2 includes at least two oil bladder springs, each of which is fixedly connected to the socket oil bladder support seats 28-3. Seawater flows into the periphery of the socket oil bladder 28 through the gaps between the socket housing 25, the socket oil bladder 28, and the socket end seal 6. Furthermore, the plug housing 12 has a socket water inlet 23 at a position corresponding to the socket oil bladder housing 28-1. Under the influence of seawater, the socket oil bladder housing 28-1 deforms to maintain a stable pressure. The socket oil bladder 28 is filled with silicone oil. Silicone oil has a low viscosity coefficient, excellent insulation properties, and a wide temperature resistance, making it suitable for instant underwater plugging and unplugging. The use of silicone oil ensures that the plug optical fiber pin and the socket optical fiber pin 30 are immersed in insulating silicone oil during the insertion and separation process, which can effectively annihilate the arc generated when the plug electrical pin and the socket electrical pin 30 are electrically connected and separated, has a cleaning effect on the optical fiber pin, and realizes hot plugging and unplugging.

[0098] The receptacle oil reservoir housing 28-1 is fixed to and affixed to one end of the receptacle housing support wall 37. A through-hole is defined in its axis for the receptacle electrical and optical fiber pins 30 to enter the receptacle oil reservoir. A groove is defined in the receptacle housing support wall 37, into which one end of the receptacle oil reservoir housing 28-1 rests, sealing and securing the two. The other end of the receptacle oil reservoir housing 28-1 is fixed to the receptacle end seal 6.

[0099] Among them, the socket electrical pin and the socket optical fiber pin 30 are respectively placed in the second base plate, and pass through the socket oil bag 28, the socket shell support wall 37 (that is, the bottom of the plug shell 12) and the socket photoelectric fixing plate 36 in sequence. The socket photoelectric fixing plate 36 fixes one end of the socket electrical pin and one end of the socket optical fiber pin 30.

[0100] The receptacle optical fiber pin 30 is fixed in the receptacle housing 25 and enters the receptacle end sealing component 6 after passing through the receptacle oil bag 28 .

[0101] The socket pins are made of beryllium copper. Beryllium copper has good electrical conductivity and excellent elasticity. While meeting the electrical performance requirements, it is also resistant to vibration and impact.

[0102] At least four socket optical fiber pins 30 are located in the rear cavity of the socket shell 25 and are connected to the second optical cable; an optical fiber pin spring for buffering is installed between each socket optical fiber pin 30 and the socket optoelectronic fixing plate 36.

[0103] More preferably, Figure 4 and Figure 14 Shows the internal details of the socket electrical pins. Figure 4 As shown, the socket electrical pin includes an inlet sleeve 39 , a main sleeve 41 , a metal bushing 38 , a sliding pin 42 , a sliding pin spring 40 , a socket electrical pin body 29 and a sealing block 35 .

[0104] A metal bushing 38 is installed at one end within the inlet sleeve 39, supporting it and improving its strength. The inlet sleeve 39 is inserted into the socket-end sealing component 6. The inlet sleeve 39 is made of fluorosilicone rubber and features an annular sealing protrusion. When the socket assembly is not mated with the plug assembly, the inner wall of the annular protrusion forms an interference fit with the sliding pin 42, sealing the inlet sleeve 39. When the socket assembly is mated with the plug assembly, the annular protrusion forms an interference fit with the plug's electrical pin inserted into the inlet sleeve 39, sealing the inlet sleeve 39. The socket-end sealing component includes a through-hole matching the size of the sliding pin 42, allowing the plug's electrical pin to pass through and abut against the sliding pin 42.

[0105] The other end of the inlet sleeve 39 is fixedly sleeved on the main sleeve 41, and the inlet sleeve 39 and the main sleeve 41 together form the inner cavity of the socket electrical pin; in the inner cavity of the socket electrical pin, the sliding pin 42, the sliding pin spring 40 and the socket electrical pin body 29 are abutted in sequence.

[0106] The main sleeve 41 is fixedly mounted on the socket housing support wall 37 ; the main sleeve 41 is provided with a pressure valve that can communicate with the socket oil bag 28 , and the pressure valve is used to balance the pressure difference between the main sleeve 41 and the socket oil bag 28 .

[0107] One end of the socket electrical pin body 29 is fixed in the inner cavity of the socket electrical pin, and the other end passes through the socket shell support wall 37 and is located in the rear cavity of the socket shell 25, connected to the second cable; the socket electrical pin body 29 and the socket shell support wall 37 are sealed by a sealing block 35, and the sealing block 35 is fixed in the socket shell support wall 37 through the socket photoelectric fixing plate 36.

[0108] It's worth noting that the lengths of the plug fiber optic pin 18, receptacle fiber optic pin 30, plug electrical pin 19, and receptacle electrical pin in the present invention are determined based on actual usage requirements. The lengths primarily influence the order in which the plug and receptacle devices make contact when docking. Preferably, the plug electrical pin 19 is larger than the plug fiber optic pin 18, ensuring that the electrical pin makes contact first. Simulation calculations indicate that the deep-sea pluggable optoelectronic connection system proposed in the present invention is applicable to depths of 0 to 3,000 meters underwater.

[0109] Preferably, the locking member includes a slot 26 and a snap ring 27. The snap ring 27 is fixed to the exterior of the plug-end sealing component 5 and comprises a main body and slots evenly distributed around the main body. The main body is annular and fixed to the exterior of the plug-end sealing component 5. An inverted T-shaped, resilient claw extends from the outer end surface of the main body. The claw comprises a perpendicular horizontal plate and a vertical plate. One end of the horizontal plate is fixed to the main body, and the other end is fixedly connected to the middle of the vertical plate. The radial inner side of the vertical plate is located at a distance less than the outer diameter of the socket housing 25 from the axis of the plug device. Accordingly, the slot 26 is defined on the outer wall of the socket housing 25. The outer surface of the end of the socket housing 25 is conical, with a smaller diameter near the snap ring 27. This conical shape is designed to initially extend radially inwardly into the claw. As the cone advances, the claw expands toward the outer wall of the socket housing 25 until it reaches the slot 26 and secures it. It should be noted that the strength of the clamping groove 26 must ensure that the clamping groove 26 and the clamping ring 27 can be separated when subjected to external force.

[0110] The function and principle of the socket end sealing component 6 can be referred to the plug end sealing component 5. The socket end sealing component 6 includes a second rubber shell 6-2 and a second bottom plate 6-1; the second bottom plate 6-1 is fixedly connected to the other end surface of the socket oil naan, the second rubber shell 6-2 is coaxially arranged with the second bottom plate 6-1, and the second rubber shell 6-2 is rotatably connected to the second bottom plate 6-1; a socket end pin connection hole is provided on the second rubber shell 6-2, and a socket end pin through hole is provided on the second bottom plate 6-1; ... 2 is installed between the second torsion spring, under the action of the second torsion spring, the socket end pin connection hole and the socket end pin through hole are misaligned with each other when the plug device is not in operation; when the second rubber shell 6-2 rotates around the axis of the second bottom plate 6-1 to the second connection position, the plug end pin connection hole is connected with the socket end pin through hole; the socket electrical pin is fixed in the socket shell and passes through the socket oil bag and then enters the socket end sealing component; the socket optical fiber pin is fixed in the socket shell, and the other end of the socket optical fiber pin is placed in the socket oil bag or inserted into the socket end sealing component according to the length requirements. Figure 1 As shown, six socket-end pin connection holes are provided on the second rubber shell 6-2, four of which are for the optical fiber pins of the plug to pass through, and the other two are for the electrical pins of the plug to pass through.

[0111] The second rubber shell 6-2 abuts against and pushes the first rubber shell to move close to the bottom of the plug shell, and the other ends of the plug optical fiber pin and the plug electrical pin pass through the plug end pin connecting hole, the connected socket end pin connecting hole and the socket end pin through hole in turn and enter the socket electrical socket and the socket optical fiber pin respectively.

[0112] A second avoidance groove is also provided on the second rubber shell 6-2, and a second brake through hole is provided on the second bottom plate 6-1; the other end of the brake rod passes through the plug chamber plate, the first brake through hole, the first avoidance groove in sequence, and enters the second avoidance groove. The inclined wedge structure abuts against one end face of the second avoidance groove to drive the second rubber shell 6-2 to rotate to the second connection position, thereby achieving connection between the socket end pin connection hole and the socket end pin through hole. The brake rod 5-4 is used to drive its other end to move back and forth to promote the rotation of the second rubber shell 6-2. The two form a rotating inclined wedge structure, and the specific structure of the inclined wedge field can be referred to. Preferably, as Figure 11As shown, the other end of the brake lever 5-4 is inclined. The tip first inserts into the second escape groove, then the inclined surface presses against one end surface of the second escape groove. As the brake lever 5-4 continues to advance, different positions on the inclined surface contact the end surface, increasing the distance between the tip and the end surface of the second escape groove, until the inclined wedge structure is fully inserted into the second escape groove. The advantage of using the brake lever to actuate the first and second escape grooves is that it does not sequentially connect the plug-side pin connection hole and the socket-side pin through-hole, or vice versa. Instead, the corresponding action is executed based on the movement distance of the brake lever 5-4, which improves the sealing effect of the first and second rubber shells 6-2.

[0113] A second stop bar is provided on the second base plate 6-1 and inserted into the second avoidance groove. In the non-operating state, one end surface of the second avoidance groove abuts the second stop bar. When the second rubber housing 6-2 is driven by the brake lever to rotate to the second connection position, the other end surface of the second avoidance groove abuts the second stop bar. The second stop bar serves to limit the rotation angle of the second rubber housing 6-2.

[0114] When the plug assembly is connected to the socket assembly, the socket housing 25 is inserted into the plug housing 12. The plug-end sealing component 5 and the socket-end sealing component 6 abut against the plug housing and are locked together by the locking member. The plug-end pin connection hole and the socket-end pin through-hole, as well as the socket-end pin connection hole and the socket-end pin through-hole, are connected, the plug electrical pin and the socket electrical pin are electrically connected, and the plug optical fiber pin and the socket optical fiber pin 30 are electrically connected. When the first and second rubber housings abut, they squeeze each other, sealing the silicone oil in the intercommunication between the plug assembly and the socket assembly.

[0115] Specifically, the plug housing 12 and the socket housing 25 are first connected via the plug-in rail 15 and the plug-in slider 16; the socket housing 25 is inserted into the plug housing 12; the plug-end sealing component 5 abuts against the socket-end sealing component 6; the plug-end pin connection hole and the socket-end pin through hole, and the socket-end pin connection hole and the socket-end pin through hole are connected, the plug electrical pin and the plug optical fiber pin are respectively inserted into the socket inner housing assembly and connected to the socket electrical pin and the socket optical fiber pin 30, respectively, and the locking member locks the plug housing 12 and the socket housing 25 in position;

[0116] After the plug device is connected to the socket device, the central axes of the plug housing 12, the plug inner housing, and the socket housing 25 coincide with each other.

[0117] The deep-sea pluggable optoelectronic connection method proposed by the present invention comprises the following steps:

[0118] S1. Pass the first optical cable and the first electrical cable through the curved pipe and connect them to the electrical pin and the optical fiber pin of the plug respectively;

[0119] S2, fixed socket device; the external manipulator moves the plug device toward the socket device by controlling the handle assembly, the socket housing 25 is inserted into the plug housing 12, the plug rail 15 and the plug slider 16 are aligned to achieve a first-level guide;

[0120] S3, the external manipulator continues to move the plug device, and continues to move the plug device, the plug end sealing component 5 and the socket end sealing component 6 remain in contact; at the same time, the plug electrical pin 19 contacts the sliding pin 42 and pushes the sliding pin 42 to move toward the socket electrical pin body 29, and the plug electrical pin extends from the plug end sealing component 5 and inserts into the socket electrical pin, realizing secondary guidance.

[0121] At the same time, the front end of the brake rod is inserted into the socket end sealing component 6, and the brake rod drives the second rubber shell 6-2 to rotate so that the socket end pin connection hole and the socket end pin through hole are connected, and the plug optical fiber pin is connected to the socket optical fiber pin 30, thereby completing the optical fiber connection between the first optical cable and the second optical cable, and the electrical connection between the first electrical cable and the second cable;

[0122] S4. The locking groove 26 and the locking ring 25 lock the plug device and the socket device.

[0123] The principle of separation of the socket device and the plug device is now explained:

[0124] When the socket device is separated from the plug device, the socket device is fixed, and the external manipulator pulls the handle assembly to drive the plug device to move toward the rear end of the plug. Under the cooperation of the card slot 26 and the snap ring 25, the socket device and the plug device are unlocked, and the socket shell 25 is gradually moved out of the plug shell 12. The plug-end sealing component 5 and the socket-end sealing component 6 are abutted under the action of the first spring 20. The plug electrical pin and the plug optical fiber pin are respectively pulled out of the socket device in turn, and the plug electrical pin is disconnected from the socket electrical pin. The plug optical fiber pin is disconnected from the socket optical fiber pin 30. At this point, the first optoelectronic system is disconnected from the second optoelectronic system, and the disconnection of the external cable and optical cable is completed;

[0125] When the brake rod is pulled out of the socket device, the second rubber shell 6-2 is reset under the action of the second torsion spring, and the socket-end pin connecting hole and the socket-end pin through hole are restored to the initial misaligned state;

[0126] As the socket housing 25 moves out of the plug housing 12, the first spring 20 gradually pushes the plug chamber plate and the plug end sealing component 5 to reset. When the first avoidance groove is out of contact with the brake rod group, the first rubber housing is reset under the action of the first torsion spring, and the plug end pin connecting hole and the plug end pin through hole return to their initial misaligned state, and the plug optical fiber pin retreats into the plug chamber.

[0127] As can be seen from the above description, the plugging and unplugging actions of the socket device and the plug device are both completed by applying axial force, which is easy to operate automatically underwater.

[0128] The overall structure of the present invention is precise and uncomplicated. Given the harsh submarine environment, any complex structure is susceptible to damage, so a simple structure is more practical. The plug and socket devices are limited by plug-in and pull-out rails and plug-in and pull-out sliders, which simultaneously serve as primary guides. The plug electrical pins and socket electrical pins cooperate as secondary guides to ensure precise alignment of the optical fiber connection. Taking full account of the actual conditions of the manipulator and the marine environment, the handle assembly is equipped with a flexible structure to facilitate flexible alignment and prevent damage to the socket and plug devices during insertion and removal.

[0129] The present invention is a brand-new design concept for deep-sea connectors with integrated optoelectronic connections. It can be widely used in underwater fields and has strong practicality. The two-level guide design adopted by the present invention avoids damage to the connector during the plugging and unplugging process due to poor connection accuracy, and solves the problems of traditional connectors such as shallow working water depth, short service life, and few plugging and unplugging times.

[0130] In summary, the present invention proposes a deep-sea plug-in optoelectronic connection system and connection method. The overall structure of the present invention is precise and uncomplicated, with good working stability and good scalability. The present invention can perform real-time simultaneous connection of optical fiber and electricity underwater, as well as timely disconnection of optical fiber and electricity.

[0131] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0132] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0133] The above specific embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A deep-sea pluggable optoelectronic connection assembly, characterized in that: including a plug unit and a socket unit; The plug device includes a plug housing, a plug cavity plate, a plug end sealing component, at least two juxtaposed plug electrical pins and at least four juxtaposed plug optical fiber pins; The plug housing is a cylindrical structure with a plug opening at one end; One end of the plug electrical pin and the plug optical fiber pin are both fixed to the bottom of the plug shell, and one end of the plug electrical pin is connected to the external first cable, and one end of the plug optical fiber pin is connected to the external first optical cable; The socket device includes a socket electrical pin whose number is equal to that of the plug electrical pin and a socket optical fiber pin whose number is equal to that of the plug optical fiber pin; one end of the socket electrical pin is connected to an external second electrical cable, and one end of the socket optical fiber pin is connected to an external second optical cable; The plug cavity plate and the plug end sealing component disposed inside the plug housing are coaxial and fixedly connected, and the plug cavity plate and the plug end sealing component are slidably connected along the axial direction of the plug housing; The bottom of the plug housing elastically supports the plug chamber plate; The plug end sealing component includes a first rubber shell and a first bottom plate; The first bottom plate is fixedly connected to the plug cavity plate, the first rubber shell is coaxially arranged with the first bottom plate, and the first rubber shell is rotatably connected to the first bottom plate; The first rubber shell is provided with plug-end pin connection holes corresponding in position to the plug optical fiber pins and the plug electrical pins, and the first bottom plate is provided with plug-end pin through holes equal in number to the plug-end pin connection holes; A first torsion spring is installed between the first bottom plate and the first rubber housing. Under the action of the first torsion spring, the plug-end pin connection hole and the plug-end pin through hole are misaligned with each other when the plug device is in a non-operating state. When the first rubber housing rotates around the axis of the first bottom plate to a first communication position, the plug-end pin connection hole is communicated with the plug-end pin through hole; The plug cavity plate provides oil sac cavities with the same number as the plug optical fiber pins. The oil sac cavities are cavity structures with an opening at one end, and the opening is connected to the plug end pin through-holes. The oil sac cavities are filled with silicone oil. The other end of the plug electrical pin passes through the plug cavity plate and is inserted into the first bottom plate; When the plug device is in a non-working state, the other end of the plug optical fiber pin is placed in the plug cavity; The socket device further comprises a socket outer shell and a socket inner shell assembly; the socket inner shell assembly is fixed to the socket outer shell; When the plug device is moved toward the socket device for connection, the end of the socket device abuts and pushes the plug-end sealing component close to the bottom of the plug shell; after the plug-end pin connection hole is connected to the plug-end pin through hole, the other end of the plug electrical pin is electrically connected to the other end of the socket electrical pin of the socket device, and the other end of the plug optical fiber pin passes through the plug-end pin connection hole and is electrically connected to the other end of the socket optical fiber pin of the socket device; The plug housing and the socket housing mutually lock the moving distance of the plug device and the socket device through a locking member.

2. The deep-sea pluggable optoelectronic connection assembly according to claim 1, characterized in that: The socket housing is a cylindrical structure with a socket opening at one end, and the socket opening faces the plug device; The socket inner shell assembly includes a socket end sealing component and a socket oil bag fixed in the socket outer shell, and the socket end sealing component is fixedly connected to the socket oil bag; The socket end sealing component includes a second rubber shell and a second bottom plate; The second bottom plate is fixedly connected to the socket oil bag, the second rubber shell is coaxially arranged with the second bottom plate, and the second rubber shell is rotatably connected to the second bottom plate; A socket end pin connection hole is provided on the second rubber shell, and a socket end pin through hole is provided on the second bottom plate; A second torsion spring is installed between the second bottom plate and the second rubber shell. Under the action of the second torsion spring, the socket-end pin connection hole and the socket-end pin through hole are misaligned with each other when the plug device is in a non-working state. When the second rubber housing rotates around the axis of the second bottom plate to a second communication position, the socket-end pin connection hole is communicated with the socket-end pin through hole; The socket electrical pin is fixed in the socket shell and passes through the socket oil bag and is inserted into the second bottom plate; The socket optical fiber pin is fixed in the socket housing, and the other end of the socket optical fiber pin is inserted into the second bottom plate; The end of the socket device abuts against and pushes the plug end sealing component close to the bottom of the plug shell, and the other end of the plug optical fiber pin passes through the plug end pin connection hole, the connected socket end pin connection hole and the socket end pin through hole in sequence and then enters the second bottom plate; The other end of the plug electrical pin passes through the plug end pin connection hole, the connected socket end pin connection hole and the socket end pin through hole and then enters the second bottom plate.

3. The deep-sea pluggable optoelectronic connection assembly according to claim 2, characterized in that: It also includes a brake rod, the other end of which is fixed to the plug housing and one end of which passes through the plug cavity plate; A first avoidance groove is provided on the first rubber shell, and a first braking through hole is provided on the first bottom plate; The other end of the brake rod is an inclined wedge structure. When the plug-end sealing component approaches the bottom of the plug shell, the brake rod passes through the plug chamber plate and the first brake through-hole in sequence. The inclined wedge structure abuts against one end surface of the first avoidance groove to drive the first rubber shell to rotate to the first connecting position, thereby realizing the connection between the plug-end pin connecting hole and the plug-end pin through-hole.

4. The deep-sea pluggable optoelectronic connection assembly according to claim 3, characterized in that: A second avoidance groove is provided on the second rubber shell, and a second braking through hole is provided on the second bottom plate; When the socket-end sealing component is close to the bottom of the plug shell, the other end of the brake rod passes through the plug chamber plate and the first brake through hole in sequence and enters the second avoidance groove; the inclined wedge structure abuts against one end surface of the second avoidance groove to drive the second rubber shell to rotate to the second communication position, thereby realizing the communication between the socket-end pin connecting hole and the socket-end pin through hole.

5. The deep-sea pluggable optoelectronic connection assembly according to claim 4, wherein a first stop bar is provided on the first bottom plate and inserted into the first avoidance groove; in a non-operating state, one end surface of the first avoidance groove abuts against the first stop bar; and when the first rubber housing is driven by the brake lever to rotate to the first connecting position, the other end surface of the first avoidance groove abuts against the first stop bar; A second baffle is provided on the second bottom plate and inserted into the second avoidance groove; in a non-working state, one end surface of the second avoidance groove abuts against the second baffle; when the second rubber housing rotates to the second connecting position under the drive of the brake lever, the other end surface of the second avoidance groove abuts against the second baffle.

6. The deep-sea pluggable optoelectronic connection assembly according to claim 5, characterized in that: A first slot is provided on one end surface of the first avoidance groove, so that a first gap is formed between the first blocking bar and the end surface of the first avoidance groove, and the brake rod passes through the first gap; A second slot is provided on one end surface of the second avoidance groove, so that a second gap is formed between the second blocking bar and the end surface of the second avoidance groove, and the brake rod passes through the second gap.

7. The deep-sea pluggable optoelectronic connection assembly according to claim 1, characterized in that: The plug cavity plate includes a plug end cover and a plug cavity plate body; The plug chamber is provided with a plug oil bag, which is coated with silicone oil. When working underwater, seawater can enter the plug oil bag. The plug cavity plate body is provided with oil bag through holes, the number of which is equal to the number of the plug optical fiber pins, and both ends of the oil bag through holes are sealed by the plug end cover and the plug end sealing component to form the oil bag cavity; The plug end cover is provided with a hole for the plug oil bag to communicate with seawater.

8. The deep-sea pluggable optoelectronic connection assembly according to claim 1, characterized in that: The plug device further includes a bent pipe for protecting the first optical cable and the first electrical cable; The end of the elbow is sealed and fixedly connected to the exterior of the plug device.

9. The deep-sea pluggable optoelectronic connection assembly according to claim 2, characterized in that: The socket oil bag is filled with silicone oil, and an oil bag spring is built into the socket oil bag. The oil bag spring elastically supports both ends of the socket oil bag. The end of the socket optical fiber pin is placed in the socket oil bag; when working underwater, the circumferential outer portion of the socket oil bag is in contact with seawater.

10. The deep-sea pluggable optoelectronic connection assembly according to claim 2, characterized in that: The socket electrical plug includes: an inlet sleeve, a main sleeve, a metal bushing, a sliding pin, a sliding pin spring, a socket electrical plug body and a sealing block; The metal bushing is installed in the inlet sleeve; the inlet sleeve is inserted into the socket end sealing component; An annular protrusion for sealing is provided inside the inlet sleeve; The inlet sleeve is connected to the main sleeve, and the two form an inner cavity of the socket electrical pin; in the inner cavity of the socket electrical pin, the sliding pin, the sliding pin spring and the socket electrical pin body abut in sequence; The main sleeve is fixedly mounted on the socket housing; a pressure valve is provided on the main sleeve that can communicate with the socket oil bag, and the pressure valve is used to balance the pressure difference between the main sleeve and the socket oil bag; One end of the socket electrical pin body is located in the inner cavity of the socket electrical pin, and the other end passes through the bottom of the socket shell and is connected to the second cable; the socket electrical pin body and the bottom of the socket shell are sealed by the sealing block.

Images