A sc polarization maintaining optical fiber connector

Abstract

This application discloses an SC polarization-maintaining fiber optic connector, relating to the field of fiber optic connectors. It includes a fiber optic connector body and two polarization-maintaining fibers installed inside. Polarization-maintaining mechanisms are provided on both sides of the fiber optic connector body, each mechanism including mounting plates corresponding to the sides of the fiber optic connector body. This application utilizes corresponding second T-slots and second T-blocks to install corresponding limiting frames. During installation, the first magnetic block contacts the second magnetic block, achieving attraction and further enabling the positioning and fixing of multiple limiting frames. Therefore, force can be applied to the two mounting plates and the polarization-maintaining fibers, causing the two polarization-maintaining fibers to connect tightly to the fiber optic connector body, increasing connection stability and thus achieving a polarization-maintaining effect.

Description

Technical Field

[0001] This application relates to the field of fiber optic connectors, and more particularly to an SC polarization-maintaining fiber optic connector. Background Technology

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

[0003] Currently, polarization-maintaining fiber optic cables require fiber optic connectors for connection. However, because polarization-maintaining fiber optic cables require higher stability during connection than traditional optical fibers, existing fiber optic connectors cannot guarantee the stability of polarization-maintaining fiber optic cables during connection and installation. Consequently, the stability of existing fiber optic connectors when connecting and installing polarization-maintaining fiber optic cables is poor. Therefore, a C-type polarization-maintaining fiber optic connector is needed to meet these requirements. Utility Model Content

[0004] To improve the stability of polarization-maintaining fiber connection installation, this application provides an SC polarization-maintaining fiber connector.

[0005] The SC polarization-maintaining fiber optic connector provided in this application adopts the following technical solution: an SC polarization-maintaining fiber optic connector includes a fiber optic connector body and two polarization-maintaining fibers installed inside, and polarization-maintaining mechanisms are provided on both sides of the fiber optic connector body. The polarization-maintaining mechanism includes mounting plates on both sides of the fiber optic connector body. Each mounting plate has a corresponding mounting hole on one side. The polarization-maintaining fiber passes through the two corresponding mounting holes. Each mounting plate has a corresponding limiting bracket on the side away from each other. A corresponding synchronizing rod is fixedly installed on each of the two limiting brackets. A corresponding connecting rod is fixedly installed on the side of the two synchronizing rods that are close to each other. Two mounting slots are symmetrically opened at the bottom of the fiber optic connector body. A corresponding second magnetic block is fixedly installed in each of the two mounting slots. A first magnetic block that matches the two second magnetic blocks is fixedly installed on each of the two connecting rods.

[0006] By adopting the above technical solution, during the installation process, the first magnetic block will contact the second magnetic block, thereby completing the attraction operation. Furthermore, it can complete the positioning and fixing installation of multiple limit frames. Therefore, force can be applied to the two mounting plates on both sides and the polarization-maintaining optical fiber, so that the two polarization-maintaining optical fibers are tightly connected to the main body of the optical fiber connector under the action, and the connection stability is increased. This makes the connection of the two polarization-maintaining optical fibers more stable, thus achieving the effect of polarization maintenance.

[0007] Preferably, the first magnetic block and the second magnetic block are the same size, and the thickness of the first magnetic block and the second magnetic block is the same as the depth of the mounting groove.

[0008] By adopting the above technical solution, and by using the first magnetic block and the second magnetic block to be the same size, it is easy to perform adsorption installation.

[0009] Preferably, each of the two connecting rods is fixedly mounted with a corresponding fixing plate on the side that is close to each other, and fixing bolts are screwed onto the fixing plate.

[0010] By adopting the above technical solution, the fixing bolts installed on the fixing plate are rotated and connected to the bottom of the fiber optic connector body, thereby completing the fixed installation of the fixing plate and multiple limit frames.

[0011] Preferably, the fiber optic connector body has corresponding reinforcement grooves on all four sides of one side, and each of the reinforcement grooves has a corresponding reinforcement block fixedly installed in it, and each of the reinforcement blocks is fixedly installed with the mounting plate.

[0012] By adopting the above technical solution, the two mounting plates can initially complete the connection with the fiber optic connector body through the corresponding reinforcement grooves and reinforcement blocks.

[0013] Preferably, the upper and lower ends of the fiber optic connector body are fixedly installed with corresponding first positioning seats, second positioning seats, third positioning seats and fourth positioning seats. A first T-slot is opened on one side of the first positioning seat, second positioning seat, third positioning seat and fourth positioning seat. A corresponding first T-block is slidably installed in the multiple first T-slots. The multiple first T-blocks are fixedly installed with the mounting plate.

[0014] By adopting the above technical solution, the mounting plate and polarization-maintaining fiber can be repositioned and installed using the first positioning seat, the second positioning seat, the third positioning seat, the fourth positioning seat, and the corresponding first T-slot and the first T-block, thereby preventing installation misalignment and other phenomena.

[0015] Preferably, the bottom of the mounting plate has two symmetrically formed second T-shaped grooves, and a corresponding second T-shaped block is slidably installed in each of the two second T-shaped grooves. The two second T-shaped blocks are fixedly installed with the corresponding limiting frame.

[0016] By adopting the above technical solution, the corresponding limit frame can be installed through the corresponding second T-slot and second T-block.

[0017] Preferably, all of the aforementioned limiting frames are arranged in an L-shape.

[0018] By adopting the above technical solution, and by setting multiple limit frames in an L-shape, it is convenient to perform positioning and clamping installation.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. This application utilizes mounting plates and the like to install corresponding limit frames via second T-slots and second T-blocks. During installation, the first magnetic block contacts the second magnetic block, achieving attraction and positioning multiple limit frames. This allows for the application of force to the two mounting plates and polarization-maintaining fibers, ensuring a tight connection between the two fibers and the fiber optic connector body, thus increasing connection stability and achieving polarization maintenance.

[0020] 2. This application employs a reinforcement groove and the like, which allows for the initial connection between the two mounting plates and the fiber optic connector body by passing the corresponding reinforcement groove and reinforcement block. At this point, the two polarization-maintaining fibers are connected. Further, the mounting plates and polarization-maintaining fibers can be repositioned and installed by passing the first positioning seat, the second positioning seat, the third positioning seat, the fourth positioning seat, and the corresponding first T-shaped groove and the first T-shaped block, thereby preventing installation misalignment and other issues. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an SC polarization-maintaining fiber optic connector according to an embodiment of this application; Figure 2 This is a schematic diagram illustrating the limiting installation part of the offset-maintaining structure, which is the main feature of this application embodiment; Figure 3 This is an enlarged schematic diagram of the installation part of the polarization-maintaining structure, which is the main embodiment of this application. Figure 4 This is a schematic diagram illustrating the fixed part of the polarization-maintaining structure in an embodiment of this application; Figure 5 This is a schematic diagram illustrating the bottom structure of the main body of the fiber optic connector, as shown in the embodiments of this application. Reference numerals in the attached drawings: 1. Fiber optic connector body; 2. Mounting plate; 3. Polarization-maintaining fiber; 4. Mounting hole; 5. First positioning seat; 6. Second positioning seat; 7. Third positioning seat; 8. Fourth positioning seat; 9. First T-slot; 10. First T-block; 11. Second T-slot; 12. Second T-block; 13. Reinforcing slot; 14. Reinforcing block; 15. Limiting frame; 16. Synchronizing rod; 17. Connecting rod; 18. Fixing plate; 19. First magnetic block; 20. Mounting slot; 21. Second magnetic block; 22. Fixing bolt. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0023] This application discloses an SC polarization-maintaining fiber optic connector.

[0024] Example 1 Reference Figure 1-3 An SC polarization-maintaining fiber optic connector includes a fiber optic connector body 1 and two polarization-maintaining fibers 3 installed inside, polarization-maintaining mechanisms disposed on both sides of the fiber optic connector body 1, and a limiting mechanism disposed on the polarization-maintaining mechanism. The fiber optic connector body 1 in this application is of type SC. The polarization-maintaining mechanism includes mounting plates 2 on both sides of the fiber optic connector body 1. Each mounting plate 2 has a corresponding mounting hole 4 on one side. The polarization-maintaining fiber 3 is fixedly passed through the corresponding mounting holes 4. Each mounting plate 2 has a corresponding limiting bracket 15 on the side away from each other. Each limiting bracket 15 has a corresponding synchronizing rod 16 fixedly installed on the side of the two synchronizing rods 16 that are close to each other. Each synchronizing rod 16 has a corresponding connecting rod 17 fixedly installed on the side of the two synchronizing rods 16 that are close to each other. The bottom of the fiber optic connector body 1 has two symmetrical mounting slots 20. Each mounting slot 20 has a corresponding second magnetic block 21 fixedly installed in each mounting slot 20. Each connecting rod 17 has a first magnetic block 19 that matches the two second magnetic blocks 21. The first magnetic block 19 and the second magnetic block 21 are the same size. The thickness of the first magnetic block 19 and the second magnetic block 21 is the same as the depth of the mounting slot 20.

[0025] During use, the first magnetic block 19 will contact the second magnetic block 21 during installation, thereby completing the attraction operation and further completing the positioning and fixing of multiple limit frames 15. Therefore, force can be applied to the two mounting plates 2 on both sides and the polarization-maintaining fiber 3, so that the two polarization-maintaining fibers 3 are tightly connected to the fiber optic connector body 1 under the action, and the connection stability is increased, making the connection of the two polarization-maintaining fibers 3 more stable, thus achieving the effect of polarization maintenance.

[0026] Reference Figure 3-5The limiting mechanism includes reinforcing grooves 13 formed around one side of the fiber optic connector body 1, and a corresponding reinforcing block 14 fixedly installed in each of the multiple reinforcing grooves 13. The multiple reinforcing blocks 14 are fixedly installed with the mounting plate 2. The upper and lower ends of the fiber optic connector body 1 are fixedly installed with corresponding first positioning seats 5, second positioning seats 6, third positioning seats 7 and fourth positioning seats 8. A first T-shaped groove 9 is formed on one side of each of the first positioning seats 5, second positioning seats 6, third positioning seats 7 and fourth positioning seats 8. A corresponding first T-shaped block 10 is slidably installed in each of the multiple first T-shaped grooves 9. The multiple first T-shaped blocks 10 are fixedly installed with the mounting plate 2. Among them, two second T-shaped grooves 11 are symmetrically opened at the bottom of the mounting plate 2. A corresponding second T-shaped block 12 is slidably installed in each of the two second T-shaped grooves 11. The two second T-shaped blocks 12 are fixedly installed with the corresponding limit frame 15. The multiple limit frames 15 are all arranged in an L-shape.

[0027] In use, the two mounting plates 2 are initially connected to the fiber optic connector body 1 by passing through the corresponding reinforcing grooves 13 and reinforcing blocks 14. At this time, the two polarization-maintaining fibers 3 will be connected. Further, the mounting plates 2 and polarization-maintaining fibers 3 can be repositioned and installed by passing through the first positioning seat 5, the second positioning seat 6, the third positioning seat 7, the fourth positioning seat 8 and the corresponding first T-shaped groove 9 and first T-shaped block 10, thereby preventing installation from being misaligned.

[0028] Example 2 Reference Figure 4-5 It also includes a fixing plate 18 fixedly installed on the side of the two connecting rods 17 that are close to each other, and a fixing bolt 22 is screwed onto the fixing plate 18.

[0029] In use, by rotating the fixing bolt 22 installed on the fixing plate 18, the fixing bolt 22 rotates and connects and fixes with the bottom of the fiber optic connector body 1, thereby completing the fixed installation of the fixing plate 18 and multiple limit brackets 15. Thus, this application adopts two different fixing methods for installation and use, which can further improve the adaptability during installation and fixing.

[0030] The implementation principle of an SC polarization-maintaining fiber optic connector according to an embodiment of this application is as follows: In use, the two mounting plates 2 are first connected to the fiber optic connector body 1 by means of the corresponding reinforcing grooves 13 and reinforcing blocks 14. At this time, the two polarization-maintaining fibers 3 will be connected. Then, the mounting plates 2 and the polarization-maintaining fibers 3 can be repositioned and installed by means of the first positioning seat 5, the second positioning seat 6, the third positioning seat 7, the fourth positioning seat 8 and the corresponding first T-shaped groove 9 and the first T-shaped block 10. This can prevent the installation from being misaligned, and thus achieve the desired effect. At this time, the corresponding limiting frame 15 can be installed through the corresponding second T-slot 11 and second T-block 12. During the installation process, the first magnetic block 19 will contact the second magnetic block 21 to complete the attraction operation. This will further complete the positioning and fixing installation of multiple limiting frames 15. Therefore, force can be applied to the two mounting plates 2 on both sides and the polarization-maintaining fiber 3, so that the two polarization-maintaining fibers 3 are tightly connected to the fiber optic connector body 1 under the action, and the connection stability is increased. This makes the connection of the two polarization-maintaining fibers 3 more stable, thus achieving the effect of polarization maintenance. Furthermore, by rotating the fixing bolt 22 installed on the fixing plate 18, the fixing bolt 22 rotates and connects and fixes with the bottom of the fiber optic connector body 1, thereby completing the fixed installation of the fixing plate 18 and multiple limit frames 15. Thus, this application adopts two different fixing methods for installation and use, which can further improve the adaptability during installation and fixing.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A SC polarization maintaining optical fiber connector comprising an optical fiber connector body (1) and two polarization maintaining optical fibers (3) mounted inside, characterized in that: The optical fiber connector body (1) is provided with polarization maintaining mechanisms on both sides; The polarization maintaining mechanism includes mounting plates (2) on both sides of the fiber optic connector body (1). Each mounting plate (2) has a corresponding mounting hole (4) on one side. The polarization maintaining fiber (3) is fixedly passed through the corresponding mounting holes (4). Each mounting plate (2) has a corresponding limiting frame (15) on the side away from each other. Each limiting frame (15) has a corresponding synchronizing rod (16) fixedly installed on the side. Each synchronizing rod (16) has a corresponding connecting rod (17) fixedly installed on the side close to each other. The bottom of the fiber optic connector body (1) has two symmetrical mounting slots (20). Each mounting slot (20) has a corresponding second magnetic block (21) fixedly installed in the two mounting slots (20). Each connecting rod (17) has a first magnetic block (19) that matches the two second magnetic blocks (21) fixedly installed on the two connecting rods (17).

2. A SC polarization maintaining optical fiber connector according to claim 1, characterized in that: The first magnetic block (19) and the second magnetic block (21) are the same size, and the thickness of the first magnetic block (19) and the second magnetic block (21) is the same as the depth of the mounting groove (20).

3. The SC polarization maintaining optical fiber connector of claim 1, wherein: Each of the two connecting rods (17) is fixedly mounted with a corresponding fixing plate (18) on the side that is close to each other, and a fixing bolt (22) is screwed onto the fixing plate (18).

4. The SC polarization maintaining optical fiber connector of claim 1, wherein: The fiber optic connector body (1) has corresponding reinforcement grooves (13) on all four sides of one side. Each of the reinforcement grooves (13) has a corresponding reinforcement block (14) fixedly installed in it. Each of the reinforcement blocks (14) is fixedly installed with the mounting plate (2).

5. The SC polarization maintaining optical fiber connector of claim 1, wherein: The upper and lower ends of the fiber optic connector body (1) are fixedly installed with corresponding first positioning seats (5), second positioning seats (6), third positioning seats (7) and fourth positioning seats (8). A first T-shaped groove (9) is opened on one side of the first positioning seat (5), second positioning seat (6), third positioning seat (7) and fourth positioning seat (8). A corresponding first T-shaped block (10) is slidably installed in the multiple first T-shaped grooves (9). The multiple first T-shaped blocks (10) are fixedly installed with the mounting plate (2).

6. The SC polarization maintaining optical fiber connector of claim 1, wherein: The bottom of the mounting plate (2) has two symmetrically opened second T-shaped grooves (11), and a corresponding second T-shaped block (12) is slidably installed in each of the two second T-shaped grooves (11). The two second T-shaped blocks (12) are fixedly installed with the corresponding limit frame (15).

7. The SC polarization maintaining optical fiber connector of claim 1, wherein: All of the aforementioned limit frames (15) are arranged in an L-shape.

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