Optical cable distribution box with multi-directional limiting optical fiber outlet structure

Abstract

This invention discloses an optical cable distribution box with a multi-directional limiting optical fiber outlet structure, belonging to the field of optical cable distribution technology. This invention addresses the problem of orderly distribution of optical fibers of different specifications. It achieves orderly distribution of optical fibers through the combined use of an optical fiber connection distribution structure, a guiding limiting structure, and a pigtail connection limiting structure. This allows for the replacement and adaptation of distribution interfaces according to fiber specifications during the fiber distribution process, ensuring orderly distribution even during irregular installation and maintenance. Furthermore, it achieves continuous and smooth distribution through simultaneous axial and radial locking combined with continuous direction adjustment and guiding limiting, reducing the complexity of distribution. The interoperability of these two methods enables bidirectional locking during orderly fiber distribution using a dual independent limiting method, effectively avoiding the inconvenience of maintenance caused by frequent switching or reassembly of optical cable interfaces.

Description

Technical Field

[0001] This invention relates to the field of optical fiber distribution technology, specifically to an optical fiber distribution box with a multi-directional limiting optical fiber exit structure. Background Technology

[0002] Fiber optic distribution boxes are interface devices used outdoors, in corridors, or indoors to connect trunk fiber optic cables and distribution fiber optic cables.

[0003] In the prior art, referring to the content of the optical fiber distribution box disclosed in patent publication number CN110389415A, it has an automatic limiting function between the box door and the box body, and the box body with a top-opening door structure can prevent the box cover from being forgotten to be locked; however, the inability to lock the box door and the box body is mainly due to human subjective factors; in the actual use of the distribution box, due to the irregular installation and relocation operations of users, the optical fiber interface of the distribution box needs to be frequently converted and reinstalled; in this process, different operators' installation personnel will also adopt different wiring methods, which makes the optical fiber cables in the optical fiber distribution box increasingly messy and disorganized, thus causing inconvenience to the subsequent maintenance process.

[0004] In light of the above, it is important to note that ensuring the orderly distribution of optical fibers of different specifications is a critical issue for fiber optic distribution boxes. This application proposes a solution to address this problem. Summary of the Invention

[0005] The purpose of this invention is to provide an optical cable distribution box with a multi-directional limiting optical fiber outlet structure to solve the problem of how to complete orderly wiring for optical fibers of different specifications. It achieves orderly wiring of optical fibers through the combined setting of optical fiber connection distribution structure, guiding limiting structure, and pigtail connection limiting structure. This allows for the replacement and adaptation of wiring interfaces according to optical fiber specifications during the wiring process, ensuring orderly wiring even during irregular installation and maintenance. Furthermore, it achieves continuous and smooth wiring through synchronous axial locking and radial locking combined with continuous directional adjustment and guiding limiting, reducing the complexity of wiring. When used in combination, the two independent limiting methods achieve bidirectional locking during the orderly wiring process, effectively avoiding the inconvenience of maintenance caused by frequent switching or reassembly of optical cable interfaces.

[0006] The objective of this invention can be achieved through the following technical solution: a fiber optic distribution box with a multi-directional limiting fiber optic outlet structure, comprising a box body and a box cover, wherein a pigtail connection limiting structure is embedded in the middle of one end of the box body, the pigtail connection limiting structure comprising a lower connector and an upper connector that are inserted into the box body and form an outlet gap, wherein symmetrically arranged pressure plates are installed on the upper connector, and a support rod vertically aligned with the pressure plates is rotatably installed on the lower connector; a fiber optic connection distribution structure is rotatably arranged on the side of the box body near the box cover, the fiber optic connection distribution structure comprising an insert plate and a mounting frame, a distribution frame is installed between a pair of mounting frames, and at least three rotating brackets are rotatably arranged in the distribution frame; a guide limiting structure is installed at the end of the insert plate away from the box cover, the guide limiting structure comprising a lower top insert block and an upper cover sleeve that are nested together, and a threading gap corresponding to the number of rotating brackets is opened between the lower top insert block and the upper cover sleeve.

[0007] Further configuration: the outer ring side of the box corresponding to the insertion plate is equipped with spaced elastic hoop rings, and the side of the box near the lower connector is symmetrically equipped with locking bolt seats. The elastic hoop rings and locking bolt seats are used to fix the optical fiber between the rotating card seat and the wire threading gap.

[0008] A further configuration is provided: a rack is installed on the lower side of the corresponding insert plate of the enclosure, and the rack is used to fix the optical splitter.

[0009] The device is further configured such that: a connecting belt is installed on the inner side of the pair of pressure plates; an adjusting bolt is rotatably installed on the pressure plate, extending through to the top of the upper connecting frame; and the ends of the pair of pressure plates abut against the upper middle of the two ends of the outlet gap.

[0010] The device is further configured such that: a spring is installed at the lower end of the support rod, a rotating rod rotatably connected to the lower connecting frame is installed in the middle of the spring, and the two ends of the spring abut against the middle of the two ends of the cable outlet gap.

[0011] The following configuration is further provided: a connecting strap is installed on the lower top insert and the upper cover sleeve at the end away from the insert plate; a spring is installed on the lower top insert at the bottom middle position corresponding to the wire threading gap; a spring ring is installed on the spring; and a clamping ring is installed on the upper cover sleeve at the top corresponding to the wire threading gap.

[0012] The further configuration is as follows: both ends of the clamping ring extend to the lower side of the middle of the threading gap, both ends of the spring ring extend to the upper side of the middle of the threading gap, and both ends of the spring ring abut against the inner ring side of the clamping ring.

[0013] The upper cover sleeve is further configured such that a locking bolt is rotatably installed in the middle of the adjacent threading gap, and the locking bolt is threadedly connected to the lower top insert block.

[0014] The following configuration is further provided: a lock body is installed at the ends of the box body and the box cover away from the hinge, and an inlet plate is embedded in both sides of the box body near the lower bracket.

[0015] The present invention has the following beneficial effects: 1. This invention addresses the problem of orderly wiring of optical fibers of different specifications. It achieves orderly wiring by combining an optical fiber connection distribution structure and a guiding and limiting structure with a pigtail connection limiting structure. This allows for the replacement and adaptation of wiring interfaces according to fiber specifications during the wiring process, ensuring orderly wiring even during irregular installation and maintenance. Furthermore, it achieves continuous and smooth wiring through simultaneous axial and radial locking combined with continuous direction adjustment and guiding and limiting, reducing the complexity of wiring. The interoperability of these two methods, using dual independent limiting mechanisms, achieves bidirectional locking during orderly optical fiber wiring, effectively avoiding the inconvenience caused by frequent switching or reassembly of optical cable interfaces. 2. During the bidirectional locking process, as the optical fiber is pulled outward, the adjusting bolts on the pre-adjusted pigtail connection limiting structure move vertically, causing the pressure plate to adjust the outlet gap according to the optical fiber specifications. That is, the distance between the pressure plate and the support rod changes, thereby completing the radial locking of the optical fiber distribution tail section. Then, the optical fiber at the upper edge of the pigtail connection limiting structure is pulled out, straightened, and placed into the threading gap, so that the middle section of the optical fiber distribution forms an axial lock under the interlocking action of the clamping ring and the spring ring. Under the dual locking effect of radial locking and axial locking, the wiring process in the optical cable distribution box can be changed and adapted according to the optical fiber specifications, ensuring that the wiring can be orderly even in irregular installation and maintenance processes. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the present invention; Figure 3 This is a schematic diagram of the installation of the pigtail connection limiting structure of the present invention; Figure 4 This is a structural diagram of the pigtail connection limiting structure of the present invention; Figure 5 This is a schematic diagram of the installation of the optical fiber connection distribution structure of the present invention; Figure 6 This is a top view of the fiber optic connection distribution structure of the present invention; Figure 7 This is a front view of the guide limiting structure of the present invention; Figure 8 This is a front sectional view of the guide and limiting structure of the present invention; Figure 9 This is a partial closed structural diagram of the present invention; Figure 10 This is a schematic diagram of the simulated wiring of the present invention.

[0018] In the diagram: 1. Housing; 2. Housing cover; 3. Frame; 4. Insert plate; 5. Mounting bracket; 6. Top cover sleeve; 7. Lock body; 8. Lower connecting bracket; 9. Elastic hoop; 10. Locking bolt seat; 11. Cable inlet plate; 12. Lower top insert block; 13. Upper connecting bracket; 14. Adjusting bolt; 15. Support rod; 16. Pressure plate; 17. Connecting belt one; 18. Spring; 19. Rotating rod; 20. Distribution bracket; 21. Rotating card seat; 22. Connecting belt two; 23. Locking bolt; 24. Clamping ring; 25. Spring ring; 26. Spring. Detailed Implementation

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: To address the problem of achieving orderly cabling of optical fibers of different specifications, the following technical solution is proposed: Reference Figures 1-9 As shown, the optical fiber distribution box with a multi-directional limiting optical fiber outlet structure in this embodiment includes a box body 1 and a box cover 2. A pigtail connection limiting structure is embedded in the middle of one end of the box body 1. The pigtail connection limiting structure includes a lower connector 8 and an upper connector 13 that are inserted into the box body 1 and form an outlet gap. A symmetrically arranged pressure plate 16 is installed on the upper connector 13. A support rod 15 that is vertically aligned with the pressure plate 16 is rotatably installed on the lower connector 8. A connecting strip 17 is installed on the inner side of the pair of pressure plates 16. An adjusting bolt 14 that passes through to the top of the upper connector 13 is rotatably installed on the pressure plate 16. By adjusting the vertical movement of the bolt 14, the pressure plate 16 can be actively driven to complete the vertical movement. The pressure plate 16 connected by the connecting strip 17 can synchronously complete the adjustment of the distance between it and the support rod 15, thereby achieving the purpose of adapting to the loading. A fiber optic connection distribution structure is rotatably installed on the side of the enclosure 1 near the cover 2. The fiber optic connection distribution structure includes a plug plate 4 and a mounting bracket 5. A distribution bracket 20 is installed between a pair of mounting brackets 5. At least three rotating brackets 21 are rotatably installed inside the distribution bracket 20. The fiber optic end is rotated and distributed here by rotating brackets 21 to ensure that different fiber optic cables can be output in an orderly manner. The end of the insert plate 4 away from the box cover 2 is equipped with a guide limiting structure. The guide limiting structure includes a lower top insert block 12 and an upper cover sleeve 6 that are nested together. The lower top insert block 12 and the upper cover sleeve 6 are provided with a wire threading gap corresponding to the number of rotating card seats 21. The through area of ​​the wire threading gap can be actively adjusted to achieve the purpose of orderly wiring. The upper cover sleeve 6 is rotatably installed with a locking bolt 23 in the middle of the adjacent wire threading gap. The locking bolt 23 is threadedly connected to the lower top insert 12. The ends of the box body 1 and the box cover 2 away from the hinge are jointly installed with a lock body 7. The inlet plate 11 is embedded in both sides of the box body 1 near the lower bracket 8. The fiber optic cable is introduced by the inlet plate 11. After the orderly wiring is completed, the lock body 7 is used to lock the box body 1 and the box cover 2.

[0021] Basic principle: Refer to Figure 4 , Figure 5 , Figure 8 and Figure 10 As shown, when performing fiber optic cabling in the fiber optic distribution box, the orderly cabling of the fibers is achieved through a combination of fiber optic connection distribution structure, guide and limit structure, and pigtail connection limit structure, as detailed below: The horizontally rotating mounting bracket 21 drives the optical fiber to complete the horizontal direction adjustment. During the outward pulling of the optical fiber, the adjusting bolt 14 on the pre-adjusted pigtail connection limiting structure moves vertically, driving the pressure plate 16 to adjust the outlet gap according to the optical fiber specification. That is, the distance between the pressure plate 16 and the support rod 15 changes, thereby completing the radial locking of the optical fiber distribution tail section. Then, the optical fiber at the upper edge of the pigtail connection limiting structure is pulled out, straightened, and placed into the threading gap, so that the middle section of the optical fiber distribution forms an axial lock under the interlocking action of the clamping ring 24 and the spring ring 25. Under the dual locking effect of radial locking and axial locking, the wiring process in the optical cable distribution box can be changed and adapted according to the optical fiber specification, ensuring that the wiring can be orderly even in irregular installation and maintenance processes. It should be noted here that during the adjustment of the distance between the pressure plate 16 and the support rod 15, the pair of pressure plates 16 move vertically downward and form abutting contact with the outlet gap, that is, the two ends of the pressure plate 16 bend inward. At the same time, the support rod 15 moves downward under the resultant force, and also forms abutting contact with the outlet gap, that is, the two ends of the support rod 15 also bend inward. Thus, together with the inward bending action of the pressure plate 16, the mechanical locking effect of the middle section of the optical fiber distribution is completed. To this end, the following is added: the ends of a pair of pressure plates 16 abut against the upper side of the middle of the two ends of the outlet gap; a spring plate 18 is installed at the lower end of the support rod 15; a rotating rod 19 that is rotatably connected to the lower connecting frame 8 is installed in the middle of the spring plate 18; and the two ends of the spring plate 18 abut against the middle of the two ends of the outlet gap. The lower top insert 12 and the upper cover sleeve 6 are both equipped with a connecting belt 22 at the end away from the insert plate 4. The lower top insert 12 is equipped with a spring 26 at the bottom middle position of the wire threading gap. A spring ring 25 is installed on the spring 26. The upper cover sleeve 6 is equipped with a clamping ring 24 at the top of the wire threading gap. The two ends of the clamping ring 24 extend to the lower side of the middle of the wire threading gap. The two ends of the spring ring 25 extend to the upper side of the middle of the wire threading gap, and the two ends of the spring ring 25 abut against the inner ring side of the clamping ring 24. During the shrinking process of the lower top insert 12 and the upper cover sleeve 6, the gap of the wire threading clamp becomes smaller, and the spring ring 25 forms an engagement effect with the clamping ring 24 under the relative upward displacement action. That is, the spring ring 25 completes the shrinking action within the clamping ring 24, and the spring 26 releases elastic potential energy to bounce upward, which, together with the above-mentioned shrinking action, completes the auxiliary locking.

[0022] Example 2: This example is a further structural optimization of the guide limiting structure in Example 1; The enclosure 1 has elastic hoop rings 9 installed at intervals on the outer ring side corresponding to the insertion plate 4. Locking bolt seats 10 are symmetrically installed on the side of the enclosure 1 near the lower connector 8. The elastic hoop rings 9 and locking bolt seats 10 are used to fix the optical fiber between the rotating card seat 21 and the wire threading gap. The enclosure 1 has a frame 3 installed on the lower side corresponding to the insertion plate 4. The frame 3 is used to fix the optical splitter.

[0023] Reference Figure 2 , Figure 9 and Figure 10 As shown, during the outward pulling of the optical fiber, the initial fixing of the optical fiber distribution tail section is first completed by adjusting the distance between the pressure plate 16 and the support rod 15. Then, after straightening the optical fiber, it is placed into the wire threading gap and axial locking is formed by the interlocking action of the clamping ring 24 and the spring ring 25. Finally, the complete fixing of the distribution optical fiber is completed by the elastic clamping ring 9. It should be further explained that: when the optical fiber is pulled outward, after the initial locking is completed by adjusting the distance between the pressure plate 16 and the support rod 15, the vertical rotation of the rotating bracket 21 completes the direction adjustment of the optical fiber distribution lead-out section, and the irregular fiber splitting operation can be carried out independently without interference. Then, the elastic clamp 9 completes the auxiliary fixation of the optical fiber distribution in the middle section. Combined with the axial and radial fixation of the optical fiber distribution, the orderly distribution of the optical fiber is completed. It needs to be explained again that the axial locking and radial locking processes are carried out almost simultaneously. In addition, the turning adjustment process and the guide limiting process are also carried out continuously. Consequently, the mechanical locking and diameter reduction actions in the fiber optic cable distribution process are also completed continuously, further reducing the fiber optic cable distribution time in the fiber distribution box and improving the distribution efficiency.

[0024] Example 3: This example combines the technical content of Example 1 and Example 2 to form the following wiring method: Fiber optic connection distribution: First, insert the end of the fiber to be distributed into the rotating bracket 21 that can be rotated horizontally, so that the fiber can be adjusted to turn outward in the horizontal direction, so that the direction of the lead wire is consistent with the distribution direction and is properly positioned. Guided limiting: During the adjustment of the distance between the pressure plate 16 and the support rod 15, a pair of pressure plates 16 move vertically downward and form abutting contact with the outlet gap, that is, the two ends of the pressure plate 16 bend inward. At the same time, the support rod 15 moves downward under the resultant force and also forms abutting contact with the outlet gap, that is, the two ends of the support rod 15 also bend inward. Thus, together with the inward bending action of the pressure plate 16, the mechanical locking effect of the middle section of the optical fiber distribution is completed. Fiber optic connection limit: During the process of the lower top insert block 12 and the upper cover sleeve 6 receiving and shrinking, the wire threading gap becomes smaller, and the spring ring 25 forms an engagement effect with the clamping ring 24 under the relative upward displacement action. That is, the spring ring 25 completes the diameter shrinking action within the clamping ring 24, and the spring 26 releases elastic potential energy and bounces upward, which, together with the above diameter shrinking action, completes the auxiliary locking.

[0025] In summary, this invention achieves orderly fiber optic cabling through the combined use of fiber optic connection distribution and guiding / limiting structures with pigtail connection limiting structures. This allows for the replacement and adaptation of cabling interfaces according to fiber specifications during the cabling process, ensuring orderly cabling even during irregular installation and maintenance. Furthermore, by simultaneously implementing axial and radial locking combined with continuous steering adjustment and guiding / limiting, it achieves continuous and smooth cabling, reducing the complexity of cabling. The interoperability of these two methods, using dual independent limiting mechanisms, enables bidirectional locking during orderly fiber optic cabling, effectively avoiding the inconvenience caused by frequent switching or reassembly of fiber optic cable interfaces.

[0026] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above 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 one or more embodiments or examples.

[0028] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An optical cable distribution box with a multi-directional limiting optical fiber outlet structure, comprising a box body and a box cover, characterized in that, A fiber optic connection limiting structure is embedded in the middle of one end of the housing. The fiber optic connection limiting structure includes a lower connector and an upper connector that are inserted into the housing and form a cable outlet gap. A pressure plate is installed on the upper connector, and a support rod that is rotatably installed on the lower connector and vertically aligned with the pressure plate is mounted on the lower connector. A connecting belt is installed on the inner side of a pair of pressure plates. An adjusting bolt that extends through to the top of the upper connecting frame is rotatably installed on the pressure plate. The ends of the pair of pressure plates abut against the upper middle part of the two ends of the outlet gap. A spring plate is installed at the lower end of the support rod, and a rotating rod that is rotatably connected to the lower connecting frame is installed in the middle of the spring plate. The two ends of the spring plate abut against the middle of the two ends of the cable outlet gap. The box body is rotatably provided with an optical fiber connection distribution structure on the side near the box cover. The optical fiber connection distribution structure includes a plug plate and a mounting bracket. A distribution bracket is installed between a pair of mounting brackets. At least three rotating slots are rotatably provided inside the distribution bracket. The end of the insert plate away from the box cover is equipped with a guide limiting structure. The guide limiting structure includes a lower top insert block and an upper cover sleeve that are nested together. A wire-passing gap corresponding to the number of rotating card seats is opened between the lower top insert block and the upper cover sleeve. The lower top insert and the upper cover sleeve are both equipped with a connecting strap two at the ends away from the insert plate. A spring is installed at the bottom middle position of the lower top insert corresponding to the wire threading gap. A spring ring is installed on the spring. A clamping ring is installed at the top of the upper cover sleeve corresponding to the wire threading gap. The two ends of the clamping ring extend to the lower side of the middle of the threading gap, and the two ends of the spring ring extend to the upper side of the middle of the threading gap, with the two ends of the spring ring abutting against the inner ring side of the clamping ring.

2. The optical cable distribution box with a multi-directional limiting optical fiber exit structure according to claim 1, characterized in that, The outer ring side of the box corresponding to the insertion plate is equipped with spaced elastic hoop rings, and the side of the box near the lower connector is symmetrically equipped with locking bolt seats. The elastic hoop rings and locking bolt seats are used to fix the optical fiber between the rotating bracket and the wire threading gap.

3. The optical cable distribution box with a multi-directional limiting optical fiber outlet structure according to claim 2, characterized in that, A rack is installed on the lower side of the corresponding insertion plate of the enclosure, and the rack is used to fix the optical splitter.

4. The optical cable distribution box with a multi-directional limiting optical fiber outlet structure according to claim 1, characterized in that, The upper cover sleeve is rotatably installed with a locking bolt in the middle of the adjacent wire threading gap, and the locking bolt is threadedly connected to the lower top insert.

5. The optical cable distribution box with a multi-directional limiting optical fiber outlet structure according to claim 1, characterized in that, The ends of the enclosure and the cover away from the hinge are jointly equipped with a lock body, and the inlet plate is embedded in both sides of the enclosure near the lower bracket.

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