Fiber combining device for polarization maintaining optical fibers

Abstract

The utility model discloses a fiber combining device for polarization maintaining optical fibers, which belongs to the technical field of optical fibers and comprises a fiber combining seat, a guide seat is arranged at the top end of the fiber combining seat, a cover plate is rotatably connected to one side of the guide seat, and an anti-overflow drying assembly is fixedly mounted at the top end of the fiber combining seat. The spill-proof drying assembly comprises a glass plate, a fixing box, a baffle, a bidirectional lead screw, a moving block and an ultraviolet lamp, the glass plate with light transmission performance is arranged in the fiber combining seat, one side of the fiber combining seat is fixedly connected with the fixing box, one end of the fiber combining seat can be shielded through the spill-proof drying assembly, and the spill-proof drying assembly can be used for drying the fiber combining seat. The device is simple in structure, the phenomenon that glue flows out to cause waste is avoided, the fiber combining effect of polarization maintaining optical fibers is guaranteed, meanwhile, the driving motor drives the two-way lead screw to rotate, the two sets of moving blocks and the ultraviolet lamp can move at the same time, the glue above a glass plate is evenly dried, and the working efficiency of polarization maintaining optical fiber combining is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fibers, in particular to a fiber-joining device for polarization-maintaining optical fibers. Background Art

[0002] Polarization-maintaining optical fiber is widely used in various fields of the national economy, such as aerospace, aviation, navigation, industrial manufacturing technology and communications. In interferometric optical fiber sensors based on optical coherence detection, the use of polarization-maintaining optical fiber can ensure that the linear polarization direction remains unchanged and improve the coherent signal-to-noise ratio to achieve high-precision measurement of physical quantities. As a special optical fiber, polarization-maintaining optical fiber is mainly used in sensors such as fiber optic gyroscopes and fiber optic hydrophones and fiber optic communication systems such as DWDM and EDFA.

[0003] To this end, the China Patent Network has disclosed a polarization-maintaining optical fiber fiber-combining device with application number 201910273979.2. Through multiple optical fiber guide grooves arranged on the guide seat and the fiber combining grooves arranged on the fiber combining seat, multiple optical fibers can pass through the optical fiber guide grooves and be combined on the fiber combining grooves. Since an installation port is provided in the extension direction of the optical fiber guide grooves for installing a polarization angle adjustment device, the polarization angle of each optical fiber can be adjusted in real time. Compared with the existing method of manufacturing polarization-maintaining optical fibers with parallel bands, it has the advantages of simple polarization-maintaining optical fiber fiber combining, low cost, and adjustable polarization angle of polarization-maintaining optical fibers.

[0004] Although the above application has met the user's needs to a certain extent, there are still certain defects in the use process. The specific problems are as follows: since multiple polarization-maintaining optical fibers are combined in the fiber-combining groove by bonding, it is necessary to wait for the glue to air-dry before the next group of polarization-maintaining optical fibers can be combined, which reduces the efficiency of polarization-maintaining optical fiber combination. Based on this, the utility model designs a polarization-maintaining optical fiber combination device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a polarization-maintaining optical fiber paralleling device to solve the problem raised in the above-mentioned background technology that since multiple polarization-maintaining optical fibers are combined in a paralleling groove by gluing, it is necessary to wait for the glue to air-dry before paralleling the next group of polarization-maintaining optical fibers, which reduces the working efficiency of the polarization-maintaining optical fiber paralleling.

[0006] To achieve the above object, the utility model provides the following technical solutions: a fiber-combining device for polarization-maintaining optical fibers, comprising a fiber-combining seat, a guide seat is provided at the top of the fiber-combining seat, a cover plate is rotatably connected to one side of the guide seat, an anti-overflow drying component is fixedly installed at the top of the fiber-combining seat, and the anti-overflow drying component comprises a glass plate, a fixing box, a baffle, a bidirectional screw rod, a moving block and an ultraviolet lamp;

[0007] A glass plate with light-transmitting performance is provided inside the fiber-combining seat, a fixing box is fixedly connected to one side of the fiber-combining seat, a baffle with an overflow prevention function is slidably connected inside the fixing box, a bidirectional screw rod with a moving function is rotatably connected inside the fiber-combining seat, a moving block is symmetrically threadedly sleeved on the outer side of the bidirectional screw rod, and an ultraviolet lamp for drying glue is equidistantly fixedly connected to the top of the moving block, which can shield one end of the fiber-combining seat to prevent glue from flowing out and causing waste, thereby ensuring the fiber-combining effect of polarization-maintaining optical fibers;

[0008] A cable arrangement positioning assembly is fixedly installed on the top of the guide seat, and the cable arrangement positioning assembly includes a fixed plate, a connecting plate, a roller and a movable plate;

[0009] A fixing plate for installation is fixedly connected to the top of the guide seat, a connecting plate is symmetrically fixedly connected inside the fixing plate, a roller with a protective function is rotatably connected between the two connecting plates, and a movable plate is slidably connected inside the cover plate, which can arrange multiple optical fibers when the polarization-maintaining optical fiber is embedded in the fiber holder to avoid entanglement and ensure the quality of the polarization-maintaining optical fiber.

[0010] Preferably, the anti-overflow drying assembly further includes a driving motor, a rotating shaft and a connecting rod;

[0011] A driving motor is fixedly installed inside the fiber paralleling seat, an output shaft of the driving motor is fixedly connected to a rotating shaft with a transmission function, and a top end of the baffle is fixedly connected to a connecting rod.

[0012] Preferably, the cable positioning assembly further includes a threaded rod and a positioning plate;

[0013] The top end of the movable plate is rotatably connected with a threaded rod, and the bottom end of the movable plate is equidistantly and fixedly connected with a positioning plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the anti-overflow drying component, one end of the fiber paralleling seat can be shielded to prevent the glue from flowing out and causing waste, thereby ensuring the paralleling effect of the polarization-maintaining optical fiber. At the same time, by driving the bidirectional lead screw to rotate through the driving motor, the two sets of moving blocks and the ultraviolet lamp can be moved at the same time to evenly dry the glue above the glass plate, thereby improving the working efficiency of the polarization-maintaining optical fiber paralleling.

[0016] 2. Through the wiring positioning assembly, multiple optical fibers can be arranged when the polarization-maintaining optical fiber is embedded in the fiber holder to avoid entanglement and ensure the quality of the polarization-maintaining optical fiber. At the same time, by rotating the threaded rod, the moving plate and the positioning plate can be driven to position the optical fiber, which is convenient for fixing optical fibers of different diameters and expands the use range of the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of a fiber-combining device for polarization-maintaining optical fibers of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the overflow prevention and drying component of the utility model;

[0020] Figure 3 For this utility model Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 It is a structural schematic diagram of the cable positioning assembly of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Fiber optic seat;

[0024] 2. Anti-overflow drying assembly; 201. Glass plate; 202. Fixed box; 203. Baffle; 204. Bidirectional screw rod; 205. Moving block; 206. Ultraviolet lamp; 207. Driving motor; 208. Rotating shaft; 209. Connecting rod;

[0025] 3. Cable positioning assembly; 301. Fixed plate; 302. Connecting plate; 303. Roller; 304. Moving plate; 305. Threaded rod; 306. Positioning plate;

[0026] 4. Guide seat; 5. Cover plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4The utility model provides a technical solution: a fiber-combining device for polarization-maintaining optical fibers, comprising a fiber-combining seat 1, a guide seat 4 is provided at the top of the fiber-combining seat 1, a cover plate 5 is rotatably connected to one side of the guide seat 4, an anti-overflow drying component 2 is fixedly installed at the top of the fiber-combining seat 1, and the anti-overflow drying component 2 comprises a glass plate 201, a fixing box 202, a baffle 203, a bidirectional screw rod 204, a moving block 205 and an ultraviolet lamp 206;

[0029] A glass plate 201 with light-transmitting performance is provided inside the fiber-split seat 1, a fixed box 202 is fixedly connected to one side of the fiber-split seat 1, a baffle 203 with overflow prevention function is slidably connected inside the fixed box 202, a bidirectional screw rod 204 with a moving function is rotatably connected inside the fiber-split seat 1, a moving block 205 is symmetrically threadedly sleeved on the outer side of the bidirectional screw rod 204, and the moving block 205 is slidably connected to the inside of the fiber-split seat 1, so as to drive two groups of moving blocks 205 and ultraviolet lamps 206 to move simultaneously, so as to evenly dry the glue above the glass plate 201, and ultraviolet lamps 206 for drying the glue are equidistantly fixedly connected to the top of the moving block 205;

[0030] A cable positioning assembly 3 is fixedly installed on the top of the guide seat 4. The cable positioning assembly 3 includes a fixed plate 301, a connecting plate 302, a roller 303 and a movable plate 304;

[0031] A fixing plate 301 for installation is fixedly connected to the top of the guide seat 4, a connecting plate 302 is symmetrically fixedly connected inside the fixing plate 301, a return spring is fixedly connected to the top of the connecting plate 302, a roller 303 with a protective function is rotatably connected between the two connecting plates 302, and a movable plate 304 is slidably connected inside the cover plate 5.

[0032] The overflow prevention drying assembly 2 further includes a driving motor 207, a rotating shaft 208 and a connecting rod 209;

[0033] A driving motor 207 is fixedly installed inside the fiber paralleling seat 1, and the driving motor 207 is electrically connected to the output end of the external power supply. The output shaft of the driving motor 207 is fixedly connected to a rotating shaft 208 with a transmission function. A bevel gear set is fixedly sleeved on the outer side of the rotating shaft 208. The bevel gear set consists of two mutually meshing bevel gears. The bevel gear set is fixedly sleeved on the outer side of the bidirectional screw rod 204. A connecting rod 209 is fixedly connected to the top of the baffle 203. A limiting spring is fixedly sleeved on the outer side of the connecting rod 209, which is convenient for shielding one end of the fiber paralleling seat 1 to avoid the waste caused by glue flowing out of the outside, thereby ensuring the paralleling effect of the polarization-maintaining optical fiber.

[0034] Since a polarization angle adjustment device is installed in the extension direction of the optical fiber guide groove, after multiple polarization-maintaining optical fibers are introduced into the fiber-combining groove, the polarization angle of the polarization-maintaining optical fibers can be adjusted by the polarization angle adjustment device, so that the polarization angle of the polarization-maintaining optical fibers after fiber-combining remains unchanged. When glue is placed on the fiber-combining seat 1 for bonding, the return property of the limit spring can drive the connecting rod 209 and the baffle 203 to fit with the top ends of the multiple optical fibers to prevent the glue from overflowing to the outside. At the same time, the driving motor 207 is started, and the driving motor 207 drives the rotating shaft 208 and the bevel gear set to rotate, and the bevel gear set drives the bidirectional lead screw 204 to rotate. The bidirectional lead screw 204 drives the two groups of moving blocks 205 and the ultraviolet lamp 206 to move back and forth through the threads on the surface, and accelerates the solidification efficiency of the glue above the glass plate 201 through the glass plate 201, so as to facilitate the fiber-combining work of the next group of polarization-maintaining optical fibers and improve the work efficiency.

[0035] The cable positioning assembly 3 also includes a threaded rod 305 and a positioning plate 306;

[0036] The top of the movable plate 304 is rotatably connected to a threaded rod 305, the outer side of the threaded rod 305 is connected to the inner thread of the cover plate 5, which is convenient for fixing optical fibers of different diameters and expands the use range of the cover plate 5. The bottom end of the movable plate 304 is equidistantly fixedly connected to a positioning plate 306.

[0037] First, a polarization-maintaining optical fiber is guided through an empty optical fiber guide groove, and then the polarization-maintaining optical fiber that has passed through the optical fiber guide groove is guided into the fiber-combining groove, and the polarization-maintaining optical fiber is kept in the fiber-combining groove. The above operation is repeated to guide multiple polarization-maintaining optical fibers into the fiber-combining groove in turn and keep them. In this way, one end of multiple polarization-maintaining optical fibers is temporarily combined in the fiber-combining groove, and then the polarization-maintaining optical fibers in the fiber-combining groove are combined by bonding or the like, or the polarization-maintaining optical fibers are led out from the end of the fiber-combining groove away from the optical fiber guide groove and then combined, so as to obtain a combined polarization-maintaining optical fiber. In this process, the optical fiber is passed through When passing through the interior of the fixed plate 301, the roller 303 arranges the multiple optical fibers, and the reset performance of the reset spring can drive the connecting plate 302 and the roller 303 to maintain a state of abutting against the outer side of the polarization-maintaining optical fiber, so as to position the polarization-maintaining optical fiber. At the same time, the rotating cover plate 5 is fixed to the guide seat 4 through the magnet, and the threaded rod 305 is rotated. The threaded rod 305 drives the movable plate 304 and the positioning plate 306 to move, and the positioning plate 306 fixes the top of the optical fiber, and the fixing height is fine-tuned according to the diameter of the polarization-maintaining optical fiber, thereby improving the applicability of the cover plate 5.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means 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 utility model. In this specification, the schematic representation of the above terms does 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.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fiber-combining device for polarization-maintaining optical fibers, comprising a fiber-combining seat (1), a guide seat (4) being provided at the top of the fiber-combining seat (1), a cover plate (5) being rotatably connected to one side of the guide seat (4), characterized in that: An anti-overflow drying assembly (2) is fixedly mounted on the top of the fiber paralleling seat (1), and the anti-overflow drying assembly (2) comprises a glass plate (201), a fixing box (202), a baffle (203), a bidirectional screw rod (204), a moving block (205) and an ultraviolet lamp (206); A glass plate (201) with light-transmitting properties is provided inside the fiber-shaping seat (1); a fixing box (202) is fixedly connected to one side of the fiber-shaping seat (1); a baffle (203) with an anti-overflow function is slidably connected inside the fixing box (202); a bidirectional screw rod (204) with a moving function is rotatably connected inside the fiber-shaping seat (1); a moving block (205) is symmetrically threadedly sleeved on the outer side of the bidirectional screw rod (204); and an ultraviolet lamp (206) for drying glue is equidistantly fixedly connected to the top of the moving block (205); A cable arrangement positioning assembly (3) is fixedly mounted on the top of the guide seat (4), and the cable arrangement positioning assembly (3) comprises a fixed plate (301), a connecting plate (302), a roller (303) and a movable plate (304); A fixing plate (301) for installation is fixedly connected to the top of the guide seat (4), a connecting plate (302) is symmetrically fixedly connected inside the fixing plate (301), a roller (303) with a protective function is rotatably connected between the two connecting plates (302), and a movable plate (304) is slidably connected inside the cover plate (5).

2. The polarization-maintaining optical fiber paralleling device according to claim 1, characterized in that: The overflow prevention drying assembly (2) further comprises a driving motor (207), a rotating shaft (208) and a connecting rod (209); A driving motor (207) is fixedly installed inside the fiber paralleling seat (1), the output shaft of the driving motor (207) is fixedly connected to a rotating shaft (208) with a transmission function, and the top end of the baffle (203) is fixedly connected to a connecting rod (209).

3. The polarization-maintaining optical fiber paralleling device according to claim 1, characterized in that: The moving block (205) is slidably connected to the interior of the fiber paralleling seat (1).

4. The polarization-maintaining optical fiber paralleling device according to claim 2, characterized in that: The outer side of the connecting rod (209) is fixedly sleeved with a limit spring.

5. The polarization-maintaining optical fiber paralleling device according to claim 1, characterized in that: The cable positioning assembly (3) further comprises a threaded rod (305) and a positioning plate (306); The top end of the movable plate (304) is rotatably connected to a threaded rod (305), and the bottom end of the movable plate (304) is equidistantly fixedly connected to a positioning plate (306).

6. The polarization-maintaining optical fiber paralleling device according to claim 5, characterized in that: The outer side of the threaded rod (305) is threadably connected to the inner side of the cover plate (5).

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