Four-core high-sealing airtight optical cable assembly

Abstract

The utility model relates to the technical field of optical cable installation technology, in particular to a four-core high-sealing airtight optical cable assembly, which comprises an optical cable, one end of the optical cable is fixedly connected with a four-core splitter, the right end of the four-core splitter is fixedly connected with four flexible armored hollow pipes, the splitter adopts a cylindrical and circular truncated cone-shaped structure, and the four flexible armored hollow pipes are fixedly connected with the optical cable. Four through holes are formed in the bottom so that optical fibers can penetrate out conveniently, the top is of a circular-truncated-cone-shaped structure, the bottom and the top are both made of aluminum alloy materials, the air tightness of the product is guaranteed, meanwhile, the rigid strength is guaranteed, enough cavities are reserved in the cavities so that the optical fibers can be in a free state, and epoxy glue is used for glue pouring and fixing, so that the air tightness of the product is guaranteed, and the service life of the product is prolonged. Meanwhile, a plurality of right-angle tripods are fixedly connected in the cylindrical interior of the right end of the splitter, so that the rigid strength of the splitter is further ensured, and the splitter is not easy to bend to cause breakage of the optical fibers.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical cable installation technology, specifically to a four core high seal gas tight optical cable assembly. BACKGROUND

[0002] With the continuous development of communication technology, in order to meet various use scenarios, according to the actual application scene demand of customer, the conventional optical cable assembly has been unable to meet the requirements.

[0003] In the patent application publication No. CN215264166U, it includes a shell, an inner shell and a fiber jumper, the inner shell is clamped in the inside of the shell, the fiber jumper is embedded in the inside of the inner shell, the rear side of the shell inner wall is provided with a snap spring assembly groove, the inside of the snap spring assembly groove is clamped with a snap spring, the inner shell is fixed between the clamping edge of the shell inner wall and the snap spring, and the rear side of the shell inner cavity is filled with potting glue. The main advantages of the present air-tight optical cable assembly are high precision, air-tightness, error-proof insertion, multi-path high-speed transmission, anti-electromagnetic interference, extreme environment resistance, high reliability and other performances. Especially under the condition of air-tightness, not only can the excellent transmission of optical signals be ensured, but also the service life of the optical fiber connector can be improved.

[0004] The existing optical cable is easy to break when being stepped on or bent, when the degree of bending exceeds the range that the optical fiber can withstand. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a four core high seal gas tight optical cable assembly to solve the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A four core high seal gas tight optical cable assembly is provided, which comprises an optical cable, one end of the optical cable is fixedly connected with a four core branch device, the right end of the four core branch device is fixedly connected with four flexible armored empty pipes, the four flexible armored empty pipes are arranged in a ring shape, the left end of the four core branch device is in the shape of a circular truncated cone, the right end of the four core branch device is in the shape of a circular cylinder, four through holes are formed in the bottom of the circular cylinder, the four core branch device is made of aluminum alloy material, epoxy glue is injected into the inside of the four core branch device, and a plurality of right-angled triangular frames are fixedly connected inside the right end of the circular cylinder of the four core branch device.

[0008] Further, the optical cable comprises an outer sheath, aramid is fixedly connected in the inner cavity of the outer sheath, and the aramid is filled in the inner cavity of the protective sleeve in a ring shape.

[0009] Further, PBT pipes are fixedly connected inside the aramid, four optical fibers are arranged in the PBT pipes, and fiber paste is filled in the inside of the PBT pipes.

[0010] Further, one end of the four flexible armored empty pipes is fixedly connected in the four through holes, and the four flexible armored empty pipes each comprises an outer sheath, aramid is fixedly connected in an inner cavity of the outer sheath, the aramid is annularly arranged in the inner cavity of the outer sheath, and a spiral armored pipe is fixedly connected in the aramid,

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The brancher adopts a cylindrical and circular table structure, four through holes are arranged at the bottom to facilitate the fiber to pass out, the top is of a circular table structure, the bottom and the top are made of aluminum alloy material, the air tightness of the product is ensured, the rigidity is also ensured, in addition, enough cavities are reserved in the cavity to make the fiber in a free state and be fixed by epoxy glue, the air tightness of the product is ensured, the tensile property is also ensured, and a plurality of right-angle tripods are fixedly connected in the cylindrical inner part of the right end of the brancher to further ensure the rigidity of the brancher and prevent the brancher from being bent and causing the optical fiber to break.

[0013] 2. The PBT pipe can accommodate four-core optical fibers and special fiber paste, and the material with a hardness of 100D is adopted to further improve the compression resistance; the fiber paste is special fiber paste, adopts negative pressure technology, and ensures the air tightness, so that when one end of the assembly is in a high-pressure environment, the high-pressure cannot be transmitted through the gap in the optical cable, thereby affecting the signal transmission; the optical fiber adopts G657A2 optical fiber (14), which is a bending insensitive single-mode optical fiber and has excellent bending resistance. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an overall three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is an overall three-dimensional structure front view of the optical cable of the utility model;

[0016] Figure 3 It is an overall three-dimensional structure exploded view of the four-core brancher of the utility model;

[0017] Figure 4 It is an overall three-dimensional structure front view of the flexible armored empty pipe of the utility model;

[0018] Figure 5 It is an overall three-dimensional structure schematic view of the right-angle tripod of the utility model.

[0019] In the drawing:

[0020] Optical cable; 11, outer sheath; 12, aramid; 13, PBT pipe; 14, optical fiber; 15, fiber paste;

[0021] Four-core brancher; 21, circular table shape; 22, cylindrical shape; 221, through hole; 23, epoxy glue; 24, right-angle tripod;

[0022] Flexible armored empty tube; 31, protective sleeve; 32, aramid fiber; 33, spiral armored tube; DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Referring to Figure 1 , 3 and 5, a four-core high-sealing air-tight optical cable assembly is provided, which comprises an optical cable 1, one end of the optical cable 1 is fixedly connected with a four-core brancher 2, the right end of the four-core brancher 2 is fixedly connected with four flexible armored empty tubes 3, the four flexible armored empty tubes 3 are arranged in a ring shape, the left end of the four-core brancher 2 is in a circular table shape 21, the right end of the four-core brancher 2 is in a cylindrical shape 22, four through holes 221 are formed in the bottom of the cylindrical shape 22, the four-core brancher 2 is filled with epoxy glue 23, and a plurality of right-angle tripods 24 are fixedly connected in the right-end cylindrical shape 22 of the four-core brancher 2.

[0025] The brancher is provided with a cylindrical shape 22 and a circular table shape 21 structure, four through holes 221 are formed in the bottom to facilitate the optical fiber 14 to pass out, the top is in a circular table shape 21 structure, the bottom and the top are both made of aluminum alloy material, the air-tightness of the product is ensured, and the rigidity is also ensured, in addition, enough cavities are left in the cavity to make the optical fiber 14 in a free state and be fixed by epoxy glue 23, the air-tightness of the product is ensured, and the tensile property is also ensured, and a plurality of right-angle tripods 24 are fixedly connected in the right-end cylindrical shape 22 of the brancher to further ensure the rigidity of the brancher.

[0026] Referring to Figure 2 , the optical cable 1 comprises an outer sheath 11, the inner cavity of the outer sheath 11 is fixedly connected with aramid fiber 12, and the aramid fiber 12 is filled in the inner cavity of the outer sheath 11 in a ring shape.

[0027] The outer sheath 11 is made of low-smoke halogen-free material, has high flame retardancy, high safety, and has high tensile strength, temperature resistance, pressure resistance, softness, and good elasticity and viscosity, and is suitable for various environmental conditions; the aramid fiber 12 adopts 14 strands of 1670dtex, so that the whole optical cable 1 can withstand a tensile force of 500N for a short time;

[0028] The aramid 12 is internally fixedly connected with a PBT pipe 13, four optical fibers 14 are arranged in the PBT pipe 13, and the PBT pipe 13 is internally filled with a fiber paste 15.

[0029] The PBT pipe 13 can accommodate the four-core optical fiber 14 and the special fiber paste 15, and the material with a hardness of 100D is adopted to further improve the compression resistance; the fiber paste 15 is the special fiber paste 15, adopts the negative pressure technology, guarantees the air tightness, so that when one end of the assembly is in a high-pressure environment, the high-pressure cannot be transmitted through the gap in the optical cable 1, thereby affecting the signal transmission; the optical fiber 14 adopts the G657A2 optical fiber 14, which is a bend-insensitive single-mode optical fiber 14 and has excellent bending resistance.

[0030] Referring to Figure 4 As shown in the figure, one end of the four flexible armored empty pipes 3 is fixedly connected in the four through holes 221, and the four flexible armored empty pipes 3 all include a protective sleeve 31, the aramid 32 is fixedly connected in the inner cavity of the protective sleeve 31, the aramid 32 is annularly arranged in the inner cavity of the protective sleeve 31, and the spiral armored pipe 33 is fixedly connected to the inner side of the annular aramid 32.

[0031] The protective sleeve 31 is also made of low-smoke halogen-free material, has high flame resistance, high safety, and has high tensile strength, temperature resistance, pressure resistance, softness, and good elasticity and viscosity, and is suitable for various environmental conditions; the two aramid 32s in the middle are used to improve the tensile property; the spiral armored pipe 33 on the inner side is used to improve the lateral pressure resistance, so as to avoid deformation and damage of the optical fiber 14 under external pressure.

[0032] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A four-core high-sealing airtight optical cable assembly, characterized in that: The device includes an optical cable (1), one end of which is fixedly connected to a four-core splitter (2). The right end of the four-core splitter (2) is fixedly connected to four flexible armored tubes (3), which are arranged in a ring. The left end of the four-core splitter (2) is frustum-shaped (21), and the right end of the four-core splitter (2) is cylindrical (22). The bottom of the cylindrical (22) has four through holes (221). The four-core splitter (2) is filled with epoxy glue (23). Several right-angled tripods (24) are fixedly connected inside the cylindrical (22) at the right end of the four-core splitter (2).

2. The four-core high-sealing airtight optical cable assembly according to claim 1, characterized in that: The optical cable (1) includes an outer sheath (11), in which an aramid fiber (12) is fixedly connected, and the aramid fiber (12) is annularly filled in the inner cavity of the outer sheath (11).

3. A four-core high-sealing airtight optical cable assembly according to claim 2, characterized in that: The aramid (12) is fixedly connected to a PBT tube (13), which contains four optical fibers (14) and is filled with fiber paste (15).

4. A four-core high-sealing airtight optical cable assembly according to claim 3, characterized in that: One end of each of the four flexible armored tubes (3) is fixedly connected to one of the four through holes (221), and the other end of each flexible armored tube (3) is fixedly connected to an FC / UPC connector. Each of the four flexible armored tubes (3) includes a protective sleeve (31). An aramid fiber (32) is fixedly connected to the inner cavity of the protective sleeve (31). The aramid fiber (32) is arranged in a ring in the inner cavity of the protective sleeve (31). A spiral armored tube (33) is fixedly connected to the inner side of the ring aramid fiber (32).

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