Optical fiber movable connector for optical cable of optical cable cross-connecting box

Abstract

The utility model belongs to the technical field of optical fiber connectors, and discloses an optical fiber movable connector for an optical cable of an optical cable cross-connecting box, which comprises a main connector, the main connector is arranged on an optical cable cross-connecting box body, one end of the main connector is provided with an auxiliary connector, the inner surface of the main connector is fixedly provided with a main protective tube, and the main protective tube is provided with an auxiliary protective tube. The inner surface of the main connector is rotatably connected with a main protective pipe, the inner surface of the auxiliary connector is rotatably connected with an auxiliary protective pipe, one end of the main connector and one end of the auxiliary connector are both fixedly connected with two clamping strips, and one end of the main connector and one end of the auxiliary connector are both fixedly connected with clamping sleeves matched with the two clamping strips for use. Under the matching action of the clamping strip and the clamping sleeve, and in combination with the reset spring in the main protection tube, the connection fastening degree is greatly enhanced, stability can be kept under the external force of equipment vibration, cable pulling and the like, and the convenience and reliability of the connector in the installation, use and maintenance processes are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of optical fiber connector technology, specifically an optical fiber movable connector for optical cables in an optical cable junction box. Background Technology

[0002] Fiber optic connectors are crucial components in fiber optic junction boxes, enabling rapid connection and disconnection of optical fibers. Their primary function is to reliably connect optical fibers from different cables, ensuring efficient optical signal transmission, while also allowing for easy disassembly and reconnection to accommodate network expansion, maintenance, and adjustments.

[0003] Meanwhile, the patent specification with application number CN206627671U discloses a communication optical cable junction box, which "can adjust the height of the placement plate according to the needs of the placed equipment, improve adaptability, and reduce usage limitations; at the same time, it can facilitate the installation of optical cables, optical fiber connectors and other equipment, and improve the reliability of use; it includes a box body, a front box door, an upper placement plate, a lower placement plate and a heat dissipation base, and the heat dissipation base is provided with several heat dissipation holes on the front side; it also includes a first threaded tube, a first threaded rod, a second threaded tube, a second threaded rod, a third threaded tube, a third threaded rod, a fourth threaded tube and a fourth threaded rod; it also includes a left box door and a right box door; it also includes a first left slot plate, a first support plate, a first right slot plate, a second left slot plate, a second support plate, a second right slot plate, a third left slot plate, a third support plate and a third right slot plate, the left end and the right end of the third support plate are respectively inserted into the slots of the third left slot plate and the third right slot plate";

[0004] In use, most existing fiber optic connectors have a connection structure that makes it difficult to balance stability and convenience. They are prone to loosening under external force when tightened, and disassembly is cumbersome and time-consuming. Furthermore, most connectors have poor sealing performance, and in complex environments, external dust, moisture and other impurities can easily enter the interior through gaps, seriously affecting the performance and lifespan of the connector.

[0005] Therefore, a fiber optic active connector for optical cables in an optical cable junction box is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides an optical fiber movable connector for optical cables in an optical cable junction box. It significantly improves the convenience and reliability of the connector during installation, use, and maintenance, effectively protects the precision components such as the ferrule and sleeve inside the connector, reduces signal transmission loss, and extends the service life of the connector.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fiber optic movable connector for an optical cable in an optical cable junction box, comprising a main connector, the main connector being mounted on the body of the optical cable junction box, a secondary connector being provided at one end of the main connector, a main protective tube being fixedly installed on the inner surface of the main connector, a secondary protective tube being rotatably connected to the inner surface of the secondary connector, two snap-fit ​​strips being fixedly connected to one end of both the main connector and the secondary connector, and snap-fit ​​sleeves being fixedly connected to one end of both the main connector and the secondary connector for use with the two snap-fit ​​strips.

[0008] Preferably, a ferrule is fixedly connected to the inner surface of the secondary protective tube, one end of which is connected to an optical fiber body, and a sleeve is fixedly connected to the inner surface of the main protective tube, one end of which has a slot for use with the ferrule.

[0009] Preferably, a spherical protrusion is fixedly connected to one side of the inner wall of the snap-fit ​​sleeve, and a spherical groove is provided at one end of the snap-fit ​​strip to cooperate with the spherical protrusion.

[0010] Preferably, a limiting ring one is fixedly connected to the inner surface of the main protective tube, a return spring is fixedly connected to one end of the limiting ring one, a limiting ring two is fixedly connected to one end of the return spring, and the outer surface of the limiting ring two is slidably connected to the main protective tube.

[0011] Preferably, the secondary protective tube has the same diameter as the limiting ring two, and the secondary protective tube can be inserted into the main protective tube.

[0012] Preferably, the outer surface of the limiting ring two is fixedly connected to two guide blocks, and the inner surface of the main protective tube is provided with a guide groove for use with the two guide blocks.

[0013] Preferably, a sealing groove is provided at one end of the main connector and the auxiliary connector, and a sealing ring is provided on the inner surface of the two sealing grooves. The sealing ring is made of rubber.

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

[0015] 1. This utility model, by setting a main connector and a secondary connector, and with the cooperation of the snap-fit ​​strip and snap-fit ​​sleeve, combined with the return spring in the main protective tube, greatly enhances the tightness of the connection. It can remain stable even under external forces such as equipment vibration and cable pulling, significantly improving the convenience and reliability of the connector in the process of installation, use and maintenance.

[0016] 2. This utility model opens a sealing groove at one end of the main connector and the corresponding secondary connector. Under the action of the sealing ring in the sealing groove, the main and secondary connectors are squeezed and deformed when they are connected, tightly fitting each surface of the sealing groove. This effectively protects the precision components such as the ferrule and sleeve inside the connector, reduces signal transmission loss, and extends the service life of the connector. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the overall structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the main protective pipe of this utility model;

[0021] Figure 5 This is a schematic diagram of the side structure of the secondary connector of this utility model.

[0022] In the diagram: 1. Main connector; 11. Sealing groove; 12. Snap-fit ​​sleeve; 121. Spherical protrusion; 13. Sealing ring; 14. Insert; 15. Snap-fit ​​strip; 151. Spherical groove;

[0023] 2. Secondary connector;

[0024] 3. Main protective tube; 31. Slot; 32. Guide block; 33. Limiting ring one; 34. Return spring; 35. Guide groove; 36. Limiting ring two; 37. Sleeve;

[0025] 4. Secondary protective tube. Detailed Implementation

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

[0027] like Figures 1 to 5As shown, this utility model provides an optical fiber movable connector for an optical cable junction box, including a main connector 1, which is installed on the body of the optical cable junction box. One end of the main connector 1 is provided with a secondary connector 2. A main protective tube 3 is fixedly installed on the inner surface of the main connector 1, and a secondary protective tube 4 is rotatably connected to the inner surface of the secondary connector 2. Two snap-fit ​​strips 15 are fixedly connected to one end of both the main connector 1 and the secondary connector 2. A snap-fit ​​sleeve 12 that works with the two snap-fit ​​strips 15 is fixedly connected to one end of both the main connector 1 and the secondary connector 2. The design of the snap-fit ​​strips 15 and the snap-fit ​​sleeve 12 makes the connection between the main connector 1 and the secondary connector 2 simple and provides strong stability after connection. It can effectively resist external forces such as pulling and ensure stable optical signal transmission.

[0028] Specifically, a ferrule 14 is fixedly connected to the inner surface of the secondary protective tube 4, and an optical fiber body is connected to one end of the ferrule 14. A sleeve 37 is fixedly connected to the inner surface of the main protective tube 3, and a slot 31 for use with the ferrule 14 is opened at one end of the sleeve 37. The cooperation between the ferrule 14, the sleeve 37 and the slot 31 can accurately realize the optical fiber docking, effectively reduce the optical signal transmission loss, greatly improve the quality and efficiency of optical signal transmission, and ensure high-speed and stable communication.

[0029] like Figures 1 to 5 As shown, a spherical protrusion 121 is fixedly connected to the inner wall of one side of the snap-fit ​​sleeve 12, and a spherical groove 151 for use with the spherical protrusion 121 is opened at one end of the snap-fit ​​strip 15. When the snap-fit ​​strip 15 is fully inserted into the snap-fit ​​sleeve 12 by rotating the secondary connector 2, the spherical protrusion 121 is tightly locked in the spherical groove 151, which can effectively prevent the main connector 1 and the secondary connector 2 from loosening accidentally and improve the reliability of the connector in complex environments.

[0030] Furthermore, a limiting ring 33 is fixedly connected to the inner surface of the main protective tube 3. A return spring 34 is fixedly connected to one end of the limiting ring 33, and a limiting ring 36 is fixedly connected to one end of the return spring 34. The outer surface of the limiting ring 36 is slidably connected to the main protective tube 3, which can provide buffering and elastic support when the secondary protective tube 4 is inserted into the main protective tube 3, ensuring the stability of the insertion depth of the secondary protective tube 4, and enhancing the protection of internal precision components.

[0031] like Figures 1 to 5 As shown, the secondary protective tube 4 has the same diameter as the limiting ring 36, and the secondary protective tube 4 can be inserted into the main protective tube 3, making the insertion process of the secondary protective tube 4 smoother and more precise. At the same time, it further enhances the protection effect on internal components such as the insert 14 and the sleeve 37, and prevents external impurities from entering.

[0032] It is worth noting that two guide blocks 32 are fixedly connected to the outer surface of the limiting ring 36, and the inner surface of the main protective tube 3 is provided with a guide groove 35 that works with the two guide blocks 32. This provides precise guidance for the insertion of the secondary protective tube 4 into the main protective tube 3, ensuring that the ferrule 14 is accurately inserted into the slot 31 of the sleeve 37, avoiding deviation during the insertion process, and improving the success rate and accuracy of fiber optic splicing.

[0033] like Figures 1 to 5 As shown, a sealing groove 11 is provided at one end of the main connector 1 and the auxiliary connector 2. A sealing ring 13 is provided on the inner surface of the two sealing grooves 11. The sealing ring 13 is made of rubber and can form an efficient sealing structure to effectively prevent dust, moisture and other external impurities from entering the connector, protect the ferrule 14, sleeve 37 and other precision components, extend the service life of the connector and improve its adaptability in harsh environments.

[0034] Working principle and process: During the connection operation, the operator first brings the auxiliary connector 2 close to the main connector 1 at an inclined angle, so that the main connector 1 and the auxiliary connector 2 fit together. At the same time, the auxiliary protective tube 4 will be inserted into the main protective tube 3. Then, the auxiliary connector 2 is rotated. Under the action of the spherical protrusion 121 and the spherical groove 151, the snap-fit ​​strip 15 is stably snapped into the snap-fit ​​sleeve 12. During the insertion of the auxiliary protective tube 4, the limiting ring 36 is squeezed and the return spring 34 is compressed. The elastic force provided by the return spring 34 can ensure that the auxiliary protective tube 4 and the main protective tube 3 are tightly connected, so that the ferrule 14 is accurately inserted into the slot 31 of the sleeve 37 to complete the fiber optic docking. At the same time, after the main connector 1 and the auxiliary connector 2 are docked, the rubber sealing ring 13 in the sealing groove 11 fits tightly to form a seal and prevent external impurities from entering.

[0035] When disassembly is required, rotate the secondary connector 2 in the reverse direction to overcome the friction between the spherical protrusion 121 and the spherical groove 151 and the elastic force of the return spring 34, so that the snap-fit ​​strip 15 is disengaged from the snap-fit ​​sleeve 12, and the secondary protective tube 4 is pulled out from the main protective tube 3, thus separating the main connector 1 and the secondary connector 2.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical fiber field-terminatable connector for optical cables of a fiber optic cable terminal, comprising a main connector (1), characterized in that: The main connector (1) is installed on the optical cable junction box body, one end of the main connector (1) is provided with a sub connector (2), the inner surface of the main connector (1) is fixedly provided with a main protection pipe (3), the inner surface of the sub connector (2) is rotatably connected with a sub protection pipe (4), one end of the main connector (1) and the sub connector (2) is fixedly connected with two clamping strips (15), one end of the main connector (1) and the sub connector (2) is fixedly connected with a clamping sleeve (12) matched with the two clamping strips (15).

2. An optical fiber field attachable connector of an optical cable of an optical cable terminal according to claim 1, characterized in that: The inner surface of the sub protection pipe (4) is fixedly connected with a ferrule (14), one end of the ferrule (14) is connected with an optical fiber body, the inner surface of the main protection pipe (3) is fixedly connected with a sleeve (37), one end of the sleeve (37) is provided with a plug groove (31) matched with the ferrule (14).

3. An optical fiber field attachable connector for optical cables of an optical cable terminal box according to claim 1, characterized in that: The inner wall of one side of the clamping sleeve (12) is fixedly connected with a spherical protrusion (121), one end of the clamping strip (15) is provided with a spherical groove (151) matched with the spherical protrusion (121).

4. An optical fiber field attachable connector for optical cables of an optical cable terminal box according to claim 1, characterized in that: The inner surface of the main protection pipe (3) is fixedly connected with a limiting ring one (33), one end of the limiting ring one (33) is fixedly connected with a reset spring (34), one end of the reset spring (34) is fixedly connected with a limiting ring two (36), the outer surface of the limiting ring two (36) is slidably connected with the main protection pipe (3).

5. An optical fiber field attachable connector for optical cables of an optical cable terminal box according to claim 4, characterized in that: The diameter of the sub protection pipe (4) and the limiting ring two (36) is the same, and the sub protection pipe (4) can be inserted into the main protection pipe (3).

6. An optical fiber field attachable connector for optical cables of an optical cable terminal box according to claim 4, characterized in that: The outer surface of the limiting ring two (36) is fixedly connected with two guide blocks (32), the inner surface of the main protection pipe (3) is provided with a guide groove (35) matched with the two guide blocks (32).

7. An optical fiber field attachable connector for optical cables of an optical cable terminal box according to claim 1, characterized in that: The corresponding end of the main connector (1) and the sub connector (2) is provided with a sealing groove (11), the inner surfaces of the two sealing grooves (11) are jointly provided with a sealing ring (13), and the sealing ring (13) is made of rubber.

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