Deep sea optical fiber cabin penetrating structure

Abstract

The utility model relates to the technical field of deep-sea machinery, in particular to a deep-sea optical fiber cabin penetrating structure. The deep sea optical fiber cabin penetrating structure comprises an optical fiber cabin penetrating piece base body and a sealed cabin base body, one end of the optical fiber cabin penetrating piece base body is in threaded connection with the sealed cabin base body, and a sealing structure is arranged between the optical fiber cabin penetrating piece base body and the sealed cabin base body; a plurality of optical fiber penetrating holes are formed in the optical fiber cabin penetrating piece base body in the axial direction, and optical fibers penetrate through the optical fiber penetrating holes. The deep sea optical fiber cabin-penetrating structure provided by the utility model has the advantages of simple overall structure, no need of separated plugging parts, low machining cost, less packaging process flow, and facilitation of large-scale application.

Description

Technical Field

[0001] This utility model relates to the field of deep-sea mechanical technology, and in particular to a deep-sea fiber optic tunnel structure. Background Technology

[0002] Deep-sea environmental monitoring is crucial for national defense and scientific research. Sensors and demodulation instruments used in deep-sea exploration typically communicate via optical fibers. As human activities in the deep sea become more active, various deep-sea optoelectronic instruments and equipment are being deployed to deeper abysses and trenches, leading to an increasingly strong demand for fiber optic cabling for these instruments.

[0003] Existing fiber optic cabling systems employ a method similar to traditional electrical systems, using a cabling socket and a matching fiber optic plug, which cannot connect multiple devices simultaneously. Single-aperture cabling systems may experience micro-water seepage during high-pressure operation. Furthermore, these fiber optic cabling systems have numerous components, complex structures, and high manufacturing costs, which to some extent restricts large-scale application. The existing solutions have high technical barriers, making the technology difficult to master and popularize. Utility Model Content

[0004] The purpose of this invention is to provide a deep-sea fiber optic cable penetration structure to alleviate the problems of existing fiber optic cable penetration components being unable to connect multiple devices simultaneously, as well as their complex structure and high manufacturing cost.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] A deep-sea fiber optic tunneling structure includes: a fiber optic tunneling component substrate and a sealed chamber substrate, one end of the fiber optic tunneling component substrate is threadedly connected to the sealed chamber substrate, and a sealing structure is provided between the fiber optic tunneling component substrate and the sealed chamber substrate.

[0007] The fiber optic insertion substrate has multiple fiber optic through holes along the axial direction, which are used to insert optical fibers.

[0008] Furthermore, the optical fiber through-hole is configured as a stepped hole, the diameter of which gradually decreases along a first direction, the first direction being the axial direction of the optical fiber through-hole substrate and the direction from the end of the optical fiber through-hole substrate away from the sealed chamber substrate to the sealed chamber substrate.

[0009] Furthermore, the end face of the fiber optic cable substrate away from the sealed chamber substrate is provided with an adhesive injection groove.

[0010] Furthermore, potting compound is filled into the stepped holes through the injection groove.

[0011] Furthermore, the sealing structure includes a sealing ring disposed in the groove on the end face of the fiber optic insertion component substrate, and the fiber optic insertion component substrate is sealed to the sealing chamber substrate through the sealing ring.

[0012] Furthermore, the optical fiber includes pigtails at both ends, and the pigtails are provided with optical fiber protective sleeves.

[0013] Furthermore, the tail fiber has a bare fiber structure.

[0014] Furthermore, an internal nut is provided at the connection between the fiber optic cable substrate and the sealed chamber substrate.

[0015] Furthermore, an external nut is provided at the end of the fiber optic cable substrate away from the sealed chamber substrate.

[0016] Furthermore, the fiber optic cable substrate, the sealed chamber substrate, and the external nut are all made of stainless steel or titanium alloy.

[0017] This utility model brings at least the following beneficial effects:

[0018] This utility model provides a deep-sea optical fiber penetration structure, including: an optical fiber penetration component substrate and a sealed chamber substrate. One end of the optical fiber penetration component substrate is threadedly connected to the sealed chamber substrate, and a sealing structure is provided between the optical fiber penetration component substrate and the sealed chamber substrate. The optical fiber penetration component substrate has multiple optical fiber through holes along the axial direction, and the optical fiber through holes are used to insert optical fibers.

[0019] The fiber optic insertion chamber substrate has multiple fiber optic through-holes. Typically, one bare fiber passes through each through-hole, allowing multiple fibers to be inserted simultaneously. This enables the simultaneous connection of multiple fiber optic devices or sensors, reducing the number of insertion chambers required, improving utilization, and lowering overall processing and application costs. A sealing structure exists between the fiber optic insertion chamber substrate and the sealed chamber substrate; the higher the external water pressure, the tighter the seal, improving pressure resistance. The deep-sea fiber optic insertion chamber structure has a simple overall design, eliminating the need for separate plug-in components, resulting in low machining costs and fewer packaging processes, facilitating large-scale applications.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the deep-sea fiber optic tunnel structure provided in this embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the fiber optic cable insertion substrate end face provided in an embodiment of the present invention.

[0024] icon:

[0025] 1-Sealed chamber substrate; 2-Fiber optic cable insertion component substrate; 3-Sealing ring; 4-External nut; 5-Fiber optic cable through hole; 6-Fiber optic cable protective sleeve; 7-Fiber optic cable; 8-Potting adhesive; 9-Internal nut; 10-Threaded structure; 11-Stepped hole; 12-Injection groove. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0029] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other. Figure 1 A schematic diagram of the deep-sea fiber optic tunnel structure provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the fiber optic cable insertion substrate end face provided in an embodiment of the present invention.

[0032] Example 1

[0033] Existing fiber optic cabling devices use a combination of a cabling socket and a matching fiber optic plug, which cannot connect multiple devices simultaneously. Single-aperture cabling devices may experience micro-water seepage during high-pressure operation. Furthermore, these fiber optic cabling devices have numerous components, complex structures, and high manufacturing costs, which to some extent restricts their large-scale application. The existing solutions have high technical barriers, making the technology difficult to master and popularize.

[0034] In view of this, the present invention provides a deep-sea fiber optic tunneling structure, comprising: a fiber optic tunneling component base 2 and a sealed chamber base 1, one end of the fiber optic tunneling component base 2 being threadedly connected to the sealed chamber base 1, and a sealing structure being provided between the fiber optic tunneling component base 2 and the sealed chamber base 1; the fiber optic tunneling component base 2 having a plurality of fiber optic through holes 5 along the axial direction, the fiber optic through holes 5 being used to insert fiber optics 7.

[0035] The fiber optic insertion substrate 2 has multiple fiber optic through-holes 5. Typically, one bare fiber 7 passes through a single through-hole 5. Therefore, the fiber optic insertion substrate 2 can simultaneously accommodate multiple fibers 7, allowing for the connection of multiple fiber optic devices or sensors. This reduces the number of insertion components required, improves utilization, and lowers overall processing and application costs. A sealing structure is provided between the fiber optic insertion substrate 2 and the sealed cabin substrate 1. The higher the external water pressure, the tighter the sealing structure is compressed, improving pressure resistance. The deep-sea fiber optic insertion structure has a simple overall structure, requires no separate plug-in components, has low machining costs, and involves fewer packaging processes, facilitating large-scale applications.

[0036] In an optional embodiment, the optical fiber through-hole 5 is configured as a stepped hole 11. The diameter of the stepped hole 11 gradually decreases along a first direction, which is the axial direction of the optical fiber through-hole substrate 2 and the direction from the end of the optical fiber through-hole substrate 2 away from the sealed chamber substrate 1 to the sealed chamber substrate 1.

[0037] Please see Figure 1 The advantage of setting the stepped hole 11 is that the hole diameter on the water-facing side is larger, while the hole diameter in the instrument compartment is smaller. This allows the external water pressure to be transmitted from the larger hole to the smaller hole diameter, ensuring that the fiber optic cable-through-the-compartment substrate 2 has extremely high pressure resistance. Tests have shown that the fiber optic cable-through-the-compartment substrate 2 has no significant spectral loss under a pressure of 120 MPa.

[0038] In an optional embodiment, the end face of the fiber optic cable substrate 2 away from the sealed chamber substrate 1 is provided with an adhesive injection groove 12.

[0039] Please see Figure 2 Encapsulating adhesive 8 is filled into the stepped hole 11 through the injection groove 12. The encapsulating adhesive 8 can be various organic or inorganic adhesives such as epoxy resin. External water pressure is transmitted from the larger hole to the smaller hole. The smaller hole provides resistance to the encapsulating adhesive 8 in the larger hole. Under the action of water pressure, the encapsulating adhesive 8 filled in the hole becomes more and more compact, thereby improving the pressure resistance and sealing performance of the fiber optic cable insertion substrate 2.

[0040] In an optional embodiment, the sealing structure includes a sealing ring 3 disposed in the groove on the end face of the fiber optic insertion substrate 2, and the fiber optic insertion substrate 2 is sealed to the sealing chamber substrate 1 by the sealing ring 3.

[0041] Please see Figure 1The fiber optic insertion substrate 2 is sealed to the sealing chamber substrate 1 via a sealing ring 3. The seal between the fiber optic insertion substrate 2 and the sealing chamber substrate 1 uses a traditional O-ring seal structure. The two can be fastened using either screws or by tightening. After the fiber optic insertion substrate 2 and the sealing chamber substrate 1 are fixed, the O-ring seal deforms under pressure, thus achieving a seal. The greater the external water pressure, the tighter the O-ring seal is pressed, achieving a seal between the fiber optic insertion substrate 2 and the sealing chamber substrate 1.

[0042] In an optional embodiment, the optical fiber 7 includes pigtails at both ends, and the pigtails are provided with optical fiber protective sleeves 6.

[0043] Please see Figure 1 The fiber optic protective sleeve 6 is installed on the outside of the pigtail to provide protection for both ends of the pigtail.

[0044] Furthermore, the tail fiber has a bare fiber structure.

[0045] In this embodiment, the end of the pigtail is not a plug-in structure, but a bare fiber structure, which allows for the connection of instruments or sensors through fusion splicing.

[0046] In an optional embodiment, an internal nut 9 is provided at the connection between the fiber optic cable substrate 2 and the sealed chamber substrate 1.

[0047] Please see Figure 1 The internal nut 9 is located outside the threaded structure 10 at the connection between the fiber optic cable substrate 2 and the sealed compartment substrate 1, and can be threaded to lock, thereby protecting the fiber optic cable 7 at the end.

[0048] Furthermore, an external nut 4 is provided at the end of the fiber optic cable substrate 2 that is away from the sealed compartment substrate 1.

[0049] Please continue reading Figure 1 The external nut 4 is located outside the threaded structure 10 at the end of the fiber optic cable substrate 2 away from the sealed substrate 1, and can also be threaded to lock and protect the fiber optic cable 7 at the end.

[0050] In the optional embodiment, the fiber optic cable substrate 2, the sealed cabin substrate 1, and the external nut 4 are all made of stainless steel or titanium alloy.

[0051] The fiber optic cable substrate 2, the sealed compartment substrate 1, and the external nut 4 are made of seawater-resistant stainless steel or titanium alloy, which can improve the service life of the equipment.

[0052] It should also be noted that in this embodiment, four fiber optic through-holes 5 are provided on the end face of the fiber optic jacking substrate 2, forming a four-core structure. Of course, other numbers of fiber optic through-holes 5 can be provided according to actual needs, which will not be elaborated here.

[0053] The deep-sea fiber optic transom structure is simple to manufacture, time-controllable, and low-cost. Multiple fiber optic through-holes 5 can connect multiple fiber optics 7 simultaneously. The stepped hole 11 fiber optic through-hole 5 design improves the pressure resistance of the fiber optic transom substrate 2. The bare fiber structure can be spliced ​​to connect instruments or sensors, reducing the cost of use.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A deep-sea fiber optic trans-cabin structure, characterized in that, include: The fiber optic insertion chamber substrate and the sealed chamber substrate are provided, with one end of the fiber optic insertion chamber substrate being threadedly connected to the sealed chamber substrate, and a sealing structure being provided between the fiber optic insertion chamber substrate and the sealed chamber substrate. The fiber optic insertion substrate has multiple fiber optic through holes along the axial direction, which are used to insert optical fibers.

2. The deep-sea fiber optic trans-cabin structure according to claim 1, characterized in that, The optical fiber through-hole is configured as a stepped hole, and the diameter of the stepped hole gradually decreases along a first direction. The first direction is the axial direction of the optical fiber through-hole substrate and is the direction from the end of the optical fiber through-hole substrate away from the sealed chamber substrate to the sealed chamber substrate.

3. The deep-sea fiber optic trans-cabin structure according to claim 2, characterized in that, The end face of the fiber optic cable substrate away from the sealed chamber substrate is provided with an adhesive injection groove.

4. The deep-sea fiber optic trans-cabin structure according to claim 3, characterized in that, Encapsulating adhesive is filled into the stepped holes through the injection groove.

5. The deep-sea fiber optic trans-cabin structure according to claim 1, characterized in that, The sealing structure includes a sealing ring disposed in a groove on the end face of the fiber optic insertion component substrate, and the fiber optic insertion component substrate is sealed to the sealing chamber substrate through the sealing ring.

6. The deep-sea fiber optic trans-cabin structure according to claim 1, characterized in that, The optical fiber includes pigtails at both ends, and the pigtails are provided with optical fiber protective sleeves.

7. The deep-sea fiber optic trans-cabin structure according to claim 6, characterized in that, The tail fiber has a bare fiber structure.

8. The deep-sea fiber optic trans-cabin structure according to claim 1, characterized in that, An internal nut is provided at the connection between the fiber optic cable substrate and the sealed chamber substrate.

9. The deep-sea fiber optic trans-cabin structure according to claim 8, characterized in that, An external nut is provided at the end of the fiber optic cable substrate away from the sealed cabin substrate.

10. The deep-sea fiber optic trans-cabin structure according to claim 9, characterized in that, The fiber optic cable substrate, the sealed cabin substrate, and the external nut are all made of stainless steel or titanium alloy.

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