Metal ferrule based on fused bundled optical fibers

Abstract

The utility model discloses a metal ferrule based on fused bundled optical fibers, and relates to the technical field of bundled optical fibers. The optical fiber bundle connector comprises an optical fiber bundle head, a metal insertion core and a glue filling mechanism, the glue filling mechanism comprises a sheath body and a glue filling piece, the sheath body is sleeved outside the optical fiber bundle head, the end part of the sheath body is connected with a flange part through a conical part, and the optical fiber bundle head and the sheath body are arranged in the metal insertion core in a clearance manner. Through the design of the glue filling mechanism, the sheath body can be used for assembly type protection, damage caused by collision is avoided, the optical fiber quality is improved, the glue filling piece can be combined with the sheath body through the design of the glue filling piece, and glue guide grooves, guide seams and glue injection grooves are formed in the sheath body and the glue filling piece. Glue can be added between the metal inserting core and the optical fiber bundling head from the end portion, high-uniformity and high-efficiency glue filling is achieved in the mode that glue filling is conducted while the metal inserting core is pulled out, operation of workers is facilitated, and glue filling uniformity is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical fiber bundles, and in particular relates to a metal insert based on fused optical fiber bundles. Background Art

[0002] Existing bundled optical fibers are mainly bonded with inorganic or organic glue to encapsulate the optical fiber bundle into the required shape. However, during the use of the bonded bundled optical fiber, the long-term passage of high-power laser light will cause scattering and reflection at the end face. Part of the high-power laser will be reflected back to the glue connection of the optical fiber bundle, causing cracking and debonding problems on the end face of the bundled optical fiber, thereby causing damage.

[0003] To address the above phenomenon, a melting process can be selected to melt the optical fiber bundle and the newly added quartz tube into a whole, which can avoid gluing the bundled optical fiber and thus solve the problem of cracking and debonding.

[0004] As for the assembly of the metal ferrule after the melting is completed, the metal ferrule can be used to protect the optical fiber, so the design of the metal ferrule is the focus of the structural parts. Since there is a gap between the metal ferrule and the quartz tube, it needs to be covered with high-temperature resistant glue. However, due to the small gap, it is not conducive to the uniform coverage of the glue, resulting in poor effect and insufficient efficiency. At the same time, if the gap is too small during the assembly process, it may cause collisions between the fiber optic bundling head and the metal ferrule, affecting the quality of the bundled optical fiber.

[0005] Therefore, designing a metal insert that is easy to assemble and convenient to fill with glue is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of the present utility model is to provide a metal ferrule based on fused-bundled optical fiber. Through the design of the glue filling mechanism, the sheath body can be used for assembled protection to avoid damage caused by bumps and improve the quality of the optical fiber. At the same time, the design of the glue filling piece can be combined with the sheath body, and the design of the glue guide groove, guide seam and glue injection groove on the sheath body and the glue filling piece can add glue from the end to the space between the metal ferrule and the optical fiber bundling head. By pulling out and filling the glue at the same time, highly uniform and efficient glue filling can be achieved, which is convenient for the staff to operate and has good glue filling uniformity.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The utility model is a metal ferrule based on fusion-bundled optical fibers, comprising an optical fiber bundling head, a metal ferrule and a glue-filling mechanism;

[0009] The glue filling mechanism includes a sheath body and a glue filling piece;

[0010] The sheath body is sleeved on the outside of the optical fiber bundling head, the end of the sheath body is connected to the flange portion through a tapered portion, and the gap between the optical fiber bundling head and the sheath body is set in the metal ferrule;

[0011] A rubber guide groove is provided on the peripheral side of the sheath body in the axial direction, one end of the rubber guide groove extends to the flange portion, and the other end of the rubber guide groove extends to the end of the sheath body away from the flange portion;

[0012] The filler comprises an upper half ring and a lower half ring of a semicircular ring structure, the upper half ring and the lower half ring being connected to each other by a fastener, and the upper half ring and the lower half ring being fixed to the outside of the sheath body near one end of the flange portion;

[0013] A glue injection groove is provided in the lower half ring, a glue injection nozzle connected to the glue injection groove is fixed on the circumferential side of the lower half ring, and a guide seam is provided on the lower half ring, and the glue injection groove is connected to the end of the glue guide groove through the guide seam.

[0014] Furthermore, the inner walls of the upper and lower half rings are both provided with arc-shaped edges, the outer surface of the flange portion is provided with an arc-shaped groove, and the gap of the arc-shaped edge is arranged in the arc-shaped groove.

[0015] Furthermore, outer bevels are provided in both the upper and lower half rings, and the outer bevels of the upper and lower half rings are in contact with the outer surface of the tapered portion.

[0016] Furthermore, both ends of the upper half ring and the lower half ring are provided with mounting openings, and the mounting openings are T-shaped opening structures.

[0017] Furthermore, the end portion of the sheath body away from the flange portion is provided with a flared opening, and the flared opening is communicated with the end portion of the glue guide groove.

[0018] Furthermore, a marking line is provided on the side surface of the lower half ring, and the marking line of the lower half ring is opposite to the position of the glue guide groove.

[0019] The utility model has the following beneficial effects:

[0020] The utility model adopts the design of the glue filling mechanism, and the sheath body can be used for assembled protection to avoid damage caused by bumps and improve the quality of the optical fiber. At the same time, the design of the glue filling part can be combined with the sheath body, and the design of the glue guide groove, guide seam and glue injection groove on the sheath body and the glue filling part can add glue from the end to the metal core and the optical fiber bundling head. By pulling out and filling glue at the same time, highly uniform and efficient glue filling can be achieved, which is convenient for the staff to operate and has good glue filling uniformity.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic structural diagram of a metal ferrule based on fused-bundled optical fibers according to the present invention;

[0024] Figure 2 It is a structural diagram of the sheath body and the filling piece;

[0025] Figure 3 Schematic diagram of the structure of the sheath body;

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1-fiber bundling head, 2-metal ferrule, 3-jacket body, 4-glue filling piece, 301-tapered part, 302-flange part, 303-glue guide groove, 304-arc groove, 305-flare, 401-upper half ring, 402-lower half ring, 403-glue injection groove, 404-glue injection nozzle, 405-guide seam, 406-arc edge, 407-outer bevel, 408-installation port, 409-identification line. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-3 As shown, the utility model is a metal ferrule based on fusion-bundled optical fibers, comprising an optical fiber bundling head 1, a metal ferrule 2 and a glue-filling mechanism;

[0030] The glue filling mechanism includes a sheath body 3 and a glue filling member 4;

[0031] The sheath body 3 is sleeved on the outside of the optical fiber bundling head 1. The end of the sheath body 3 is connected to the flange portion 302 through the tapered portion 301. The gap between the optical fiber bundling head 1 and the sheath body 3 is set in the metal ferrule 2.

[0032] A rubber guide groove 303 is formed on the side surface of the sheath body 3 in the axial direction. One end of the rubber guide groove 303 extends to the flange portion 302, and the other end of the rubber guide groove 303 extends to the end of the sheath body 3 away from the flange portion 302.

[0033] The filler 4 includes an upper half ring 401 and a lower half ring 402 of a semicircular ring structure, which are connected to each other by fasteners. The upper half ring 401 and the lower half ring 402 are fixed to the outside of the sheath body 3 near the flange portion 302.

[0034] A glue injection groove 403 is provided in the lower half ring 402 , and a glue injection nozzle 404 connected to the glue injection groove 403 is fixed on the side surface of the lower half ring 402 . A guide slot 405 is provided on the lower half ring 402 , and the glue injection groove 403 is connected to the end of the glue guide slot 303 through the guide slot 405 .

[0035] Among them Figure 1 and Figure 3 As shown, the inner walls of the upper half ring 401 and the lower half ring 402 are both provided with an arc-shaped edge 406 , the outer surface of the flange portion 302 is provided with an arc-shaped groove 304 , and the gap of the arc-shaped edge 406 is set in the arc-shaped groove 304 .

[0036] Among them Figure 1 As shown, outer bevels 407 are provided inside the upper half ring 401 and the lower half ring 402 , and the outer bevels 407 of the upper half ring 401 and the lower half ring 402 are in contact with the outer surface of the tapered portion 301 .

[0037] Among them Figure 2 As shown, both ends of the upper half ring 401 and the lower half ring 402 are provided with mounting openings 408, and the mounting openings 408 are T-shaped opening structures.

[0038] Among them Figure 2-3 As shown, a flared opening 305 is provided at one end of the sheath body 3 away from the flange portion 302 , and the flared opening 305 is communicated with the end of the glue guiding groove 303 .

[0039] Among them Figure 2 As shown, a marking line 409 is provided on the side surface of the lower half ring 402 , and the marking line 409 of the lower half ring 402 is opposite to the glue guiding groove 303 .

[0040] The working principle of the present invention is as follows: after the optical fiber bundling head 1 is melted into a whole, a sheath body 3 equipped with a glue filling piece 4 is sheathed on the outer surface of the optical fiber bundling head 1, and the metal ferrule 2 is sheathed on the sheath body 3 under the protection of the sheath body 3, and glue is injected into the glue injection groove 403 through the glue injection nozzle 404. The glue is discharged into the flared opening 305 through the guide seam 405 and the glue guide groove 303. While injecting glue, the glue filling piece 4 is pulled outward, and glue can be added between the optical fiber bundling head 1 and the metal ferrule 2 in sequence until the sheath body 3 is completely pulled out.

[0041] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0042] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A metal ferrule based on fused-bundled optical fibers, comprising an optical fiber bundling head (1) and a metal ferrule (2), characterized in that: It also includes a glue filling mechanism; The glue filling mechanism comprises a sheath body (3) and a glue filling piece (4); The sheath body (3) is sleeved on the outside of the optical fiber bundling head (1); the end of the sheath body (3) is connected to a flange portion (302) via a tapered portion (301); and a gap between the optical fiber bundling head (1) and the sheath body (3) is arranged in the metal insert (2); A rubber guide groove (303) is provided on the peripheral side surface of the sheath body (3) along the axial direction, one end of the rubber guide groove (303) extends to the flange portion (302), and the other end of the rubber guide groove (303) extends to an end of the sheath body (3) away from the flange portion (302); The filler (4) comprises an upper half ring (401) and a lower half ring (402) of a semicircular ring structure, wherein the upper half ring (401) and the lower half ring (402) are connected to each other via fasteners, and the upper half ring (401) and the lower half ring (402) are fixed to the outside of the sheath body (3) near one end of the flange portion (302); A glue injection groove (403) is provided in the lower half ring (402), a glue injection nozzle (404) connected to the glue injection groove (403) is fixed on the circumferential side of the lower half ring (402), a guide slit (405) is provided on the lower half ring (402), and the glue injection groove (403) is communicated with the end of the glue guide groove (303) through the guide slit (405).

2. The metal ferrule based on fused-bundled optical fiber according to claim 1, characterized in that: The inner walls of the upper half ring (401) and the lower half ring (402) are both provided with an arc-shaped edge (406), the outer surface of the flange portion (302) is provided with an arc-shaped groove (304), and the gap of the arc-shaped edge (406) is set in the arc-shaped groove (304).

3. The metal ferrule based on fused-bundled optical fiber according to claim 1, characterized in that: The upper half ring (401) and the lower half ring (402) are both provided with outer bevels (407), and the outer bevels (407) of the upper half ring (401) and the lower half ring (402) are both fitted with the outer surface of the tapered portion (301).

4. The metal ferrule based on fused-bundled optical fiber according to claim 1, characterized in that: Both ends of the upper half ring (401) and the lower half ring (402) are provided with mounting openings (408), and the mounting openings (408) are T-shaped opening structures.

5. The metal ferrule based on fused-bundled optical fiber according to claim 1, characterized in that: An end portion of the sheath body (3) away from the flange portion (302) is provided with a flared opening (305), and the flared opening (305) is communicated with the end portion of the glue guide groove (303).

6. The metal ferrule based on fused-bundled optical fiber according to claim 1, characterized in that: A marking line (409) is provided on the side surface of the lower half ring (402), and the marking line (409) of the lower half ring (402) is opposite to the glue guide groove (303).

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